Add gem entities, improve networking code

src/api/java/com/minelittlepony/render/model/GlowRenderer.java

@@ -0,0 +1,53 @@
+package com.minelittlepony.render.model;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.model.ModelBase;
+
+import org.lwjgl.opengl.GL11;
+
+import com.minelittlepony.util.render.AbstractBoxRenderer;
+import com.minelittlepony.util.render.Color;
+
+public class GlowRenderer extends AbstractBoxRenderer<GlowRenderer> {
+
+    int tint;
+    float alpha = 1;
+
+    public GlowRenderer(ModelBase model, int x, int y) {
+        super(model, x, y);
+    }
+
+    public GlowRenderer setAlpha(float alpha) {
+        this.alpha = alpha;
+
+        return this;
+    }
+
+    public GlowRenderer setTint(int tint) {
+        this.tint = tint;
+
+        return this;
+    }
+
+    public void applyTint(float alpha) {
+        Color.glColor(tint, alpha);
+    }
+
+    @Override
+    public void createBox(float offX, float offY, float offZ, int width, int height, int depth, float scaleFactor, boolean mirrored) {
+        cubeList.add(new ModelGlow(this, textureOffsetX, textureOffsetY, offX, offY, offZ, width, height, depth, scaleFactor, alpha));
+    }
+
+    @Override
+    public void render(float scale) {
+        GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS);
+        Minecraft.getMinecraft().entityRenderer.disableLightmap();
+        super.render(scale);
+        GL11.glPopAttrib();
+    }
+
+    @Override
+    protected GlowRenderer copySelf() {
+        return new GlowRenderer(baseModel, textureOffsetX, textureOffsetY);
+    }
+}

src/api/java/com/minelittlepony/render/model/ModelGlow.java

@@ -0,0 +1,78 @@
+package com.minelittlepony.render.model;
+
+import net.minecraft.client.renderer.BufferBuilder;
+
+import com.minelittlepony.util.render.Box;
+import com.minelittlepony.util.render.Quad;
+import com.minelittlepony.util.render.Vertex;
+
+/**
+ * Like a normal box, but with the top narrowed a bit.
+ */
+public class ModelGlow extends Box<GlowRenderer> {
+
+    private final float alpha;
+
+    private Quad[] quadList;
+
+    public ModelGlow(GlowRenderer renderer, int texX, int texY, float xMin, float yMin, float zMin, int w, int h, int d, float scale, float alpha) {
+        super(renderer, texX, texY, xMin, yMin, zMin, w, h, d, scale);
+
+        this.alpha = alpha;
+
+        float xMax = xMin + w + scale;
+        float yMax = yMin + h + scale;
+        float zMax = zMin + d + scale;
+
+        xMin -= scale;
+        yMin -= scale;
+        zMin -= scale;
+
+        if (renderer.mirror) {
+            float v = xMax;
+            xMax = xMin;
+            xMin = v;
+        }
+
+        float tipInset = 0.4f;
+
+        float tipXmin = xMin + w * tipInset;
+        float tipZmin = zMin + d * tipInset;
+        float tipXMax = xMax - w * tipInset;
+        float tipZMax = zMax - d * tipInset;
+
+        // w:west e:east d:down u:up s:south n:north
+        Vertex wds = vert(tipXmin, yMin, tipZmin, 0, 0);
+        Vertex eds = vert(tipXMax, yMin, tipZmin, 0, 8);
+        Vertex eus = vert(xMax,    yMax, zMin,    8, 8);
+        Vertex wus = vert(xMin,    yMax, zMin,    8, 0);
+        Vertex wdn = vert(tipXmin, yMin, tipZMax, 0, 0);
+        Vertex edn = vert(tipXMax, yMin, tipZMax, 0, 8);
+        Vertex eun = vert(xMax,    yMax, zMax,    8, 8);
+        Vertex wun = vert(xMin,    yMax, zMax,    8, 0);
+
+        quadList = new Quad[] {
+            quad(texX + d + w,     d, texY + d,  h, edn, eds, eus, eun),
+            quad(texX,             d, texY + d,  h, wds, wdn, wun, wus),
+            quad(texX + d,         w, texY,      d, edn, wdn, wds, eds),
+            quad(texX + d + w,     w, texY + d, -d, eus, wus, wun, eun),
+            quad(texX + d,         w, texY + d,  h, eds, wds, wus, eus),
+            quad(texX + d + w + d, w, texY + d,  h, wdn, edn, eun, wun)
+        };
+
+        if (renderer.mirror) {
+            for (Quad i : quadList) {
+                i.flipFace();
+            }
+        }
+    }
+
+    @Override
+    public void render(BufferBuilder buffer, float scale) {
+        parent.applyTint(alpha);
+
+        for (Quad i : quadList) {
+            i.draw(buffer, scale);
+        }
+    }
+}

src/api/java/com/minelittlepony/render/model/ModelPlane.java

@@ -0,0 +1,84 @@
+package com.minelittlepony.render.model;
+
+import net.minecraft.client.renderer.BufferBuilder;
+
+import com.minelittlepony.util.render.Box;
+import com.minelittlepony.util.render.Quad;
+import com.minelittlepony.util.render.Vertex;
+
+import javax.annotation.Nonnull;
+
+public class ModelPlane extends Box<PlaneRenderer> {
+
+    private Quad quad;
+
+    public boolean hidden = false;
+
+    public ModelPlane(PlaneRenderer renderer, int textureX, int textureY, float xMin, float yMin, float zMin, int w, int h, int d, float scale, Plane face) {
+        super(renderer, textureX, textureY, xMin, yMin, zMin, w, h, d, scale, false);
+
+        float xMax = xMin + w + scale;
+        float yMax = yMin + h + scale;
+        float zMax = zMin + d + scale;
+
+        xMin -= scale;
+        yMin -= scale;
+        zMin -= scale;
+
+        if (renderer.mirror) {
+            float v = xMax;
+            xMax = xMin;
+            xMin = v;
+        }
+
+        if (renderer.mirrory) {
+            float v = yMax;
+            yMax = yMin;
+            yMin = v;
+        }
+
+        if (renderer.mirrorz) {
+            float v = zMax;
+            zMax = zMin;
+            zMin = v;
+        }
+
+        // w:west e:east d:down u:up s:south n:north
+        Vertex wds = vert(xMin, yMin, zMin, 0, 0);
+        Vertex eds = vert(xMax, yMin, zMin, 0, 8);
+        Vertex eus = vert(xMax, yMax, zMin, 8, 8);
+        Vertex wus = vert(xMin, yMax, zMin, 8, 0);
+        Vertex wdn = vert(xMin, yMin, zMax, 0, 0);
+        Vertex edn = vert(xMax, yMin, zMax, 0, 8);
+        Vertex eun = vert(xMax, yMax, zMax, 8, 8);
+        Vertex wun = vert(xMin, yMax, zMax, 8, 0);
+
+        if (face == Plane.EAST) {
+            quad = quad(textureX, d, textureY, h, edn, eds, eus, eun);
+        }
+        if (face == Plane.WEST) {
+            quad = quad(textureX, d, textureY, h, wds, wdn, wun, wus);
+        }
+        if (face == Plane.UP) {
+            quad = quad(textureX, w, textureY, d, edn, wdn, wds, eds);
+        }
+        if (face == Plane.DOWN) {
+            quad = quad(textureX, w, textureY, d, eus, wus, wun, eun);
+        }
+        if (face == Plane.SOUTH) {
+            quad = quad(textureX, w, textureY, h, eds, wds, wus, eus);
+        }
+        if (face == Plane.NORTH) {
+            quad = quad(textureX, w, textureY, h, wdn, edn, eun, wun);
+        }
+
+        if (renderer.mirror || renderer.mirrory || renderer.mirrorz) {
+            quad.flipFace();
+        }
+    }
+
+    @Override
+    public void render(@Nonnull BufferBuilder buffer, float scale) {
+        if (!hidden) quad.draw(buffer, scale);
+    }
+}

src/api/java/com/minelittlepony/render/model/Plane.java

@@ -0,0 +1,10 @@
+package com.minelittlepony.render.model;
+
+enum Plane {
+    NORTH,
+    SOUTH,
+    UP,
+    DOWN,
+    EAST,
+    WEST
+}

src/api/java/com/minelittlepony/render/model/PlaneRenderer.java

@@ -0,0 +1,69 @@
+package com.minelittlepony.render.model;
+
+import net.minecraft.client.model.ModelBase;
+
+import com.minelittlepony.util.render.AbstractBoxRenderer;
+
+public class PlaneRenderer extends AbstractBoxRenderer<PlaneRenderer> {
+
+    public boolean mirrory, mirrorz;
+
+    public PlaneRenderer(ModelBase model) {
+        super(model);
+    }
+
+    public PlaneRenderer(ModelBase model, int x, int y) {
+        super(model, x, y);
+    }
+
+    /**
+     * Flips the Z bit. Any calls to add a plane will be mirrored until this is called again.
+     */
+    public PlaneRenderer flipZ() {
+        mirrorz = !mirrorz;
+        return this;
+    }
+
+
+    /**
+     * Flips the Y bit. Any calls to add a plane will be mirrored until this is called again.
+     */
+    public PlaneRenderer flipY() {
+        mirrory = !mirrory;
+        return this;
+    }
+
+    @Override
+    protected PlaneRenderer copySelf() {
+        return new PlaneRenderer(baseModel, textureOffsetX, textureOffsetY);
+    }
+
+    private PlaneRenderer addPlane(float offX, float offY, float offZ, int width, int height, int depth, float scale, Plane face) {
+        cubeList.add(new ModelPlane(this, textureOffsetX, textureOffsetY, modelOffsetX + offX, modelOffsetY + offY, modelOffsetZ + offZ, width, height, depth, scale, face));
+        return this;
+    }
+
+    public PlaneRenderer top(float offX, float offY, float offZ, int width, int depth, float scale) {
+        return addPlane(offX, offY, offZ, width, 0, depth, scale, Plane.UP);
+    }
+
+    public PlaneRenderer bottom(float offX, float offY, float offZ, int width, int depth, float scale) {
+        return addPlane(offX, offY, offZ, width, 0, depth, scale, Plane.DOWN);
+    }
+
+    public PlaneRenderer west(float offX, float offY, float offZ, int height, int depth, float scale) {
+        return addPlane(offX, offY, offZ, 0, height, depth, scale, Plane.WEST);
+    }
+
+    public PlaneRenderer east(float offX, float offY, float offZ, int height, int depth, float scale) {
+        return addPlane(offX, offY, offZ, 0, height, depth, scale, Plane.EAST);
+    }
+
+    public PlaneRenderer north(float offX, float offY, float offZ, int width, int height, float scale) {
+        return addPlane(offX, offY, offZ - scale * 2, width, height, 0, scale, Plane.NORTH);
+    }
+
+    public PlaneRenderer south(float offX, float offY, float offZ, int width, int height, float scale) {
+        return addPlane(offX, offY, offZ + scale * 2, width, height, 0, scale, Plane.SOUTH);
+    }
+}

src/api/java/com/minelittlepony/render/model/PonyRenderer.java

@@ -0,0 +1,21 @@
+package com.minelittlepony.render.model;
+
+import net.minecraft.client.model.ModelBase;
+
+import com.minelittlepony.util.render.AbstractBoxRenderer;
+
+public class PonyRenderer extends AbstractBoxRenderer<PonyRenderer> {
+
+    public PonyRenderer(ModelBase model) {
+        super(model);
+    }
+
+    public PonyRenderer(ModelBase model, int texX, int texY) {
+        super(model, texX, texY);
+    }
+
+    @Override
+    protected PonyRenderer copySelf() {
+        return new PonyRenderer(baseModel, textureOffsetX, textureOffsetY);
+    }
+}

src/api/java/com/minelittlepony/render/model/package-info.java

@@ -0,0 +1,7 @@
+@MethodsReturnNonnullByDefault
+@ParametersAreNonnullByDefault
+package com.minelittlepony.render.model;
+
+import mcp.MethodsReturnNonnullByDefault;
+
+import javax.annotation.ParametersAreNonnullByDefault;

src/api/java/com/minelittlepony/util/render/AbstractBoxRenderer.java

@@ -0,0 +1,212 @@
+package com.minelittlepony.util.render;
+
+import net.minecraft.client.model.ModelBase;
+import net.minecraft.client.model.ModelBox;
+import net.minecraft.client.model.ModelRenderer;
+import net.minecraft.client.model.TextureOffset;
+
+@SuppressWarnings("unchecked")
+public abstract class AbstractBoxRenderer<T extends AbstractBoxRenderer<T>> extends ModelRenderer {
+
+    protected final ModelBase baseModel;
+
+    protected int textureOffsetX;
+    protected int textureOffsetY;
+
+    protected float modelOffsetX;
+    protected float modelOffsetY;
+    protected float modelOffsetZ;
+
+    public AbstractBoxRenderer(ModelBase model) {
+        super(model);
+        baseModel = model;
+    }
+
+    public AbstractBoxRenderer(ModelBase model, int texX, int texY) {
+        super(model, texX, texY);
+        baseModel = model;
+    }
+
+    /**
+     * Called to create a new instance of this renderer (used for child renderers)
+     */
+    protected abstract T copySelf();
+
+    @Override
+    public T setTextureOffset(int x, int y) {
+        this.textureOffsetX = x;
+        this.textureOffsetY = y;
+        super.setTextureOffset(x, y);
+        return (T) this;
+    }
+
+    /**
+     * Flips the mirror flag. All faces are mirrored until this is called again.
+     */
+    public T flip() {
+        return mirror(!mirror);
+    }
+
+    public T mirror(boolean m) {
+        mirror = m;
+        return (T) this;
+    }
+
+    /**
+     * Sets the texture offset
+     */
+    public T tex(int x, int y) {
+        return setTextureOffset(x, y);
+    }
+
+    /**
+     * Sets the texture size for this renderer.
+     */
+    public T size(int w, int h) {
+        return (T) setTextureSize(w, h);
+    }
+
+    /**
+     * Positions this model in space.
+     */
+    public T at(float x, float y, float z) {
+        return (T)at(this, x, y, z);
+    }
+
+    /**
+     * Sets an offset to be used on all shapes and children created through this renderer.
+     */
+    public T offset(float x, float y, float z) {
+        modelOffsetX = x;
+        modelOffsetY = y;
+        modelOffsetZ = z;
+        return (T) this;
+    }
+
+    /**
+     * Adjusts the rotation center of the given renderer by the given amounts in each direction.
+     */
+    public static void shiftRotationPoint(ModelRenderer renderer, float x, float y, float z) {
+        renderer.rotationPointX += x;
+        renderer.rotationPointY += y;
+        renderer.rotationPointZ += z;
+    }
+
+    /**
+     * Sets this renderer's rotation angles.
+     */
+    public T rotate(float x, float y, float z) {
+        rotateAngleX = x;
+        rotateAngleY = y;
+        rotateAngleZ = z;
+        return (T) this;
+    }
+
+    /**
+     * Positions a given model in space by setting its offset values divided
+     * by 16 to account for scaling applied inside the model.
+     */
+    public static <T extends ModelRenderer> T at(T renderer, float x, float y, float z) {
+        renderer.offsetX = x / 16;
+        renderer.offsetY = y / 16;
+        renderer.offsetZ = z / 16;
+        return renderer;
+    }
+
+    /**
+     * Rotates this model to align itself with the angles of another.
+     */
+    public void rotateTo(ModelRenderer other) {
+        rotate(other.rotateAngleX, other.rotateAngleY, other.rotateAngleZ);
+    }
+
+    /**
+     * Shifts this model to align its center with the center of another.
+     */
+    public T rotateAt(ModelRenderer other) {
+        return around(other.rotationPointX, other.rotationPointY, other.rotationPointZ);
+    }
+
+    /**
+     * Sets the rotation point.
+     */
+    public T around(float x, float y, float z) {
+        setRotationPoint(x, y, z);
+        return (T) this;
+    }
+
+    /**
+     * Gets or creates a new child model based on its unique index.
+     * New children will be of the same type and inherit the same textures and offsets of the original.
+     */
+    public T child(int index) {
+        if (childModels == null || index >= childModels.size()) {
+            return child();
+        }
+        return (T)childModels.get(index);
+    }
+
+    /**
+     * Returns a brand new child under this renderer.
+     */
+    public T child() {
+        T copy = copySelf();
+        child(copy.offset(modelOffsetX, modelOffsetY, modelOffsetZ));
+        copy.textureHeight = textureHeight;
+        copy.textureWidth = textureWidth;
+        return copy;
+    }
+
+    /**
+     * Adds a new child renderer and returns itself for chaining.
+     */
+    public <K extends ModelRenderer> T child(K child) {
+        addChild(child);
+        return (T)this;
+    }
+
+    @Override
+    public T addBox(String partName, float offX, float offY, float offZ, int width, int height, int depth) {
+        partName = boxName + "." + partName;
+
+        TextureOffset tex = baseModel.getTextureOffset(partName);
+
+        setTextureOffset(tex.textureOffsetX, tex.textureOffsetY).addBox(offX, offY, offZ, width, height, depth);
+        cubeList.get(cubeList.size() - 1).setBoxName(partName);
+
+        return (T) this;
+    }
+
+    @Override
+    public T addBox(float offX, float offY, float offZ, int width, int height, int depth) {
+        addBox(offX, offY, offZ, width, height, depth, 0);
+        return (T) this;
+    }
+
+    @Override
+    public T addBox(float offX, float offY, float offZ, int width, int height, int depth, boolean mirrored) {
+        addBox(offX, offY, offZ, width, height, depth, 0, mirrored);
+        return (T)this;
+    }
+
+    @Override
+    public void addBox(float offX, float offY, float offZ, int width, int height, int depth, float scaleFactor) {
+        addBox(offX, offY, offZ, width, height, depth, scaleFactor, mirror);
+    }
+
+    /**
+     * Creates a textured box.
+     */
+    public T box(float offX, float offY, float offZ, int width, int height, int depth, float scaleFactor) {
+        return addBox(offX, offY, offZ, width, height, depth, scaleFactor, mirror);
+    }
+
+    private T addBox(float offX, float offY, float offZ, int width, int height, int depth, float scaleFactor, boolean mirrored) {
+        createBox(modelOffsetX + offX, modelOffsetY + offY, modelOffsetZ + offZ, width, height, depth, scaleFactor, mirrored);
+        return (T)this;
+    }
+
+    protected void createBox(float offX, float offY, float offZ, int width, int height, int depth, float scaleFactor, boolean mirrored) {
+        cubeList.add(new ModelBox(this, textureOffsetX, textureOffsetY, offX, offY, offZ, width, height, depth, scaleFactor, mirrored));
+    }
+}

src/api/java/com/minelittlepony/util/render/Box.java

@@ -0,0 +1,36 @@
+package com.minelittlepony.util.render;
+
+import net.minecraft.client.model.ModelBox;
+import net.minecraft.client.model.ModelRenderer;
+
+public abstract class Box<T extends ModelRenderer> extends ModelBox {
+
+    protected final T parent;
+
+    public Box(T renderer, int texU, int texV, float x, float y, float z, int dx, int dy, int dz, float delta) {
+        super(renderer, texU, texV, x, y, z, dx, dy, dz, delta);
+        parent = renderer;
+    }
+
+    public Box(T renderer, int texU, int texV, float x, float y, float z, int dx, int dy, int dz, float delta, boolean mirror) {
+        super(renderer, texU, texV, x, y, z, dx, dy, dz, delta, mirror);
+        parent = renderer;
+    }
+
+    /**
+     * Creates a new vertex mapping the given (x, y, z) coordinates to a texture offset.
+     */
+    protected Vertex vert(float x, float y, float z, int texX, int texY) {
+        return new Vertex(x, y, z, texX, texY);
+    }
+
+    /**
+     * Creates a new quad with the given spacial vertices.
+     */
+    protected Quad quad(int startX, int width, int startY, int height, Vertex ...verts) {
+        return new Quad(verts,
+                startX,         startY,
+                startX + width, startY + height,
+                parent.textureWidth, parent.textureHeight);
+    }
+}

src/api/java/com/minelittlepony/util/render/Color.java

@@ -0,0 +1,21 @@
+package com.minelittlepony.util.render;
+
+import net.minecraft.client.renderer.GlStateManager;
+
+public interface Color {
+    static float r(int color) {
+        return (color >> 16 & 255) / 255F;
+    }
+
+    static float g(int color) {
+        return (color >> 8 & 255) / 255F;
+    }
+
+    static float b(int color) {
+        return (color & 255) / 255F;
+    }
+
+    static void glColor(int color, float alpha) {
+        GlStateManager.color(Color.r(color), Color.g(color), Color.b(color), alpha);
+    }
+}

src/api/java/com/minelittlepony/util/render/ITextureSupplier.java

@@ -0,0 +1,11 @@
+package com.minelittlepony.util.render;
+
+import net.minecraft.util.ResourceLocation;
+
+/**
+ * A texture pool for generating multiple associated textures.
+ */
+@FunctionalInterface
+public interface ITextureSupplier<T> {
+    ResourceLocation supplyTexture(T key);
+}

src/api/java/com/minelittlepony/util/render/Quad.java

@@ -0,0 +1,37 @@
+package com.minelittlepony.util.render;
+
+import net.minecraft.client.model.TexturedQuad;
+
+public class Quad extends TexturedQuad {
+
+    Quad(Vertex[] vertices, int texcoordU1, int texcoordV1, int texcoordU2, int texcoordV2, float textureWidth, float textureHeight) {
+        super(vertices, texcoordU1, texcoordV1, texcoordU2, texcoordV2, textureWidth, textureHeight);
+    }
+
+    /**
+     * Reverses the order of the vertices belonging to this quad.
+     * Positions of the vertices stay the same but the order of rendering is reversed to go counter-clockwise.
+     *
+     * Reversal also affects the cross-product used to calculate texture orientation.
+     * <pre>
+     * Normal:
+     * 0-----1
+     * |\    |
+     * |  \  |
+     * |    \|
+     * 3-----2
+     *
+     * After flipFace:
+     *
+     * 3-----2
+     * |    /|
+     * |  /  |
+     * |/    |
+     * 0-----1
+     * </pre>
+     */
+    @Override
+    public void flipFace() {
+       super.flipFace();
+    }
+}

src/api/java/com/minelittlepony/util/render/Vertex.java

@@ -0,0 +1,21 @@
+package com.minelittlepony.util.render;
+
+import net.minecraft.client.model.PositionTextureVertex;
+
+public class Vertex extends PositionTextureVertex {
+
+    public Vertex(float x, float y, float z, float texX, float texY) {
+        super(x, y, z, texX, texY);
+    }
+
+    private Vertex(Vertex old, float texX, float texY) {
+        super(old, texX, texY);
+    }
+
+    // The MCP name is misleading.
+    // This is meant to return a COPY with the given texture position
+    @Override
+    public Vertex setTexturePosition(float texX, float texY) {
+        return new Vertex(this, texX, texY);
+    }
+}

src/api/java/com/minelittlepony/util/render/package-info.java

@@ -0,0 +1,7 @@
+@MethodsReturnNonnullByDefault
+@ParametersAreNonnullByDefault
+package com.minelittlepony.util.render;
+
+import mcp.MethodsReturnNonnullByDefault;
+
+import javax.annotation.ParametersAreNonnullByDefault;

src/main/java/com/minelittlepony/render/model/ModelQuads.java

@@ -0,0 +1,32 @@
+package com.minelittlepony.render.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.minelittlepony.util.render.Box;
+
+import net.minecraft.client.model.ModelRenderer;
+import net.minecraft.client.model.PositionTextureVertex;
+import net.minecraft.client.model.TexturedQuad;
+import net.minecraft.client.renderer.BufferBuilder;
+
+public class ModelQuads extends Box<ModelRenderer> {
+
+	public ModelQuads(ModelRenderer renderer) {
+		super(renderer, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+	}
+
+	protected List<TexturedQuad> quadList = new ArrayList<TexturedQuad>();
+
+	public ModelQuads addFace(PositionTextureVertex... vertices) {
+		quadList.add(new TexturedShape2d(vertices));
+
+		return this;
+	}
+
+	public void render(BufferBuilder renderer, float scale) {
+		for (TexturedQuad i : quadList) {
+			i.draw(renderer, scale);
+        }
+	}
+}

src/main/java/com/minelittlepony/render/model/TexturedShape2d.java

@@ -0,0 +1,50 @@
+package com.minelittlepony.render.model;
+
+import net.minecraft.client.model.PositionTextureVertex;
+import net.minecraft.client.model.TexturedQuad;
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.util.math.Vec3d;
+
+public class TexturedShape2d extends TexturedQuad {
+
+	protected boolean invertNormal;
+
+	public TexturedShape2d(PositionTextureVertex... vertices) {
+		super(vertices);
+	}
+
+	public TexturedShape2d(PositionTextureVertex[] vertices, int texcoordU1, int texcoordV1, int texcoordU2, int texcoordV2, float textureWidth, float textureHeight) {
+		super(vertices, texcoordU1, texcoordV1, texcoordU2, texcoordV2, textureWidth, textureHeight);
+	}
+
+	public TexturedShape2d setInvertNormal() {
+		invertNormal = true;
+		return this;
+	}
+
+	public void drawQuad(BufferBuilder renderer, float scale) {
+		Vec3d vec3d = vertexPositions[1].vector3D.subtractReverse(vertexPositions[0].vector3D);
+        Vec3d vec3d1 = vertexPositions[1].vector3D.subtractReverse(vertexPositions[2].vector3D);
+        Vec3d vec3d2 = vec3d1.crossProduct(vec3d).normalize();
+        float f = (float)vec3d2.x;
+        float f1 = (float)vec3d2.y;
+        float f2 = (float)vec3d2.z;
+
+        if (invertNormal) {
+            f = -f;
+            f1 = -f1;
+            f2 = -f2;
+        }
+
+        renderer.begin(7, DefaultVertexFormats.OLDMODEL_POSITION_TEX_NORMAL);
+
+        for (int i = 0; i < nVertices; ++i) {
+            PositionTextureVertex positiontexturevertex = vertexPositions[i];
+            renderer.pos(positiontexturevertex.vector3D.x * (double)scale, positiontexturevertex.vector3D.y * (double)scale, positiontexturevertex.vector3D.z * (double)scale).tex((double)positiontexturevertex.texturePositionX, (double)positiontexturevertex.texturePositionY).normal(f, f1, f2).endVertex();
+        }
+
+        Tessellator.getInstance().draw();
+	}
+}

src/main/java/com/minelittlepony/unicopia/UEntities.java

@@ -3,9 +3,12 @@ package com.minelittlepony.unicopia;
 import com.minelittlepony.unicopia.entity.EntityCloud;
 import com.minelittlepony.unicopia.entity.EntityConstructionCloud;
 import com.minelittlepony.unicopia.entity.EntityRacingCloud;
+import com.minelittlepony.unicopia.entity.EntitySpell;
 import com.minelittlepony.unicopia.entity.EntityWildCloud;
 import com.minelittlepony.unicopia.render.RenderCloud;
+import com.minelittlepony.unicopia.render.RenderGem;
 
+import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityList.EntityEggInfo;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.fml.client.registry.RenderingRegistry;
@@ -13,22 +16,29 @@ import net.minecraftforge.fml.common.registry.EntityEntry;
 import net.minecraftforge.registries.IForgeRegistry;
 
 public class UEntities {
-    private static final int BRUSHES_ROYALBLUE = 4286945;
+    private static final int BRUSHES_ROYALBLUE = 0x4169E1;
-    private static final int BRUSHES_CHARTREUSE = 8388352;
+    private static final int BRUSHES_CHARTREUSE = 0x7FFF00;
 
     static void init(IForgeRegistry<EntityEntry> registry) {
-        EntityEntry entry = new EntityEntry(EntityCloud.class, "cloud").setRegistryName(Unicopia.MODID, "cloud");
+        addEntity(registry, EntityCloud.class, "cloud", true, BRUSHES_ROYALBLUE, BRUSHES_CHARTREUSE);
+        addEntity(registry, EntityWildCloud.class, "wild_cloud", false, 0, 0);
+        addEntity(registry, EntityRacingCloud.class, "racing_cloud", false, 0, 0);
+        addEntity(registry, EntityConstructionCloud.class, "construction_cloud", false, 0, 0);
+        addEntity(registry, EntitySpell.class, "magic_spell", false, 0, 0);
+    }
 
-        entry.setEgg(new EntityEggInfo(new ResourceLocation("unicopia", "cloud"), BRUSHES_ROYALBLUE, BRUSHES_CHARTREUSE));
+    static <T extends Entity> void addEntity(IForgeRegistry<EntityEntry> registry, Class<T> type, String name, boolean egg, int a, int b) {
+        EntityEntry entry = new EntityEntry(type, name).setRegistryName(Unicopia.MODID, name);
+
+        if (egg) {
+            entry.setEgg(new EntityEggInfo(new ResourceLocation("unicopia", "cloud"), a, a));
+        }
 
         registry.register(entry);
-
-        registry.register(new EntityEntry(EntityWildCloud.class, "wild_cloud").setRegistryName(Unicopia.MODID, "wild_cloud"));
-        registry.register(new EntityEntry(EntityRacingCloud.class, "racing_cloud").setRegistryName(Unicopia.MODID, "racing_cloud"));
-        registry.register(new EntityEntry(EntityConstructionCloud.class, "construction_cloud").setRegistryName(Unicopia.MODID, "construction_cloud"));
     }
 
     static void preInit() {
         RenderingRegistry.registerEntityRenderingHandler(EntityCloud.class, manager -> new RenderCloud(manager));
+        RenderingRegistry.registerEntityRenderingHandler(EntitySpell.class, manager -> new RenderGem(manager));
     }
 }

src/main/java/com/minelittlepony/unicopia/entity/EntitySpell.java

@@ -0,0 +1,308 @@
+package com.minelittlepony.unicopia.entity;
+
+import com.minelittlepony.unicopia.Predicates;
+import com.minelittlepony.unicopia.UItems;
+import com.minelittlepony.unicopia.item.ItemSpell;
+import com.minelittlepony.unicopia.network.EffectSync;
+import com.minelittlepony.unicopia.spell.ICaster;
+import com.minelittlepony.unicopia.spell.IMagicEffect;
+import com.minelittlepony.unicopia.spell.SpellRegistry;
+
+import net.minecraft.block.SoundType;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityLiving;
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.SoundEvents;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.network.datasync.DataParameter;
+import net.minecraft.network.datasync.DataSerializers;
+import net.minecraft.network.datasync.EntityDataManager;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.DamageSource;
+import net.minecraft.util.EnumActionResult;
+import net.minecraft.util.EnumHand;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.World;
+
+public class EntitySpell extends EntityLiving implements IMagicals, ICaster<EntityLivingBase> {
+
+	private EntityLivingBase owner = null;
+
+	public float hoverStart;
+
+	private static final DataParameter<Integer> LEVEL = EntityDataManager
+	        .createKey(EntitySpell.class, DataSerializers.VARINT);
+
+	private static final DataParameter<String> OWNER = EntityDataManager
+	        .createKey(EntitySpell.class, DataSerializers.STRING);
+
+	private static final DataParameter<NBTTagCompound> EFFECT = EntityDataManager
+	        .createKey(EntitySpell.class, DataSerializers.COMPOUND_TAG);
+
+	private final EffectSync<EntityLivingBase> effectDelegate = new EffectSync<>(this, EFFECT);
+
+	public EntitySpell(World w) {
+		super(w);
+		setSize(0.6f, 0.25f);
+		hoverStart = (float)(Math.random() * Math.PI * 2.0D);
+		setRenderDistanceWeight(getRenderDistanceWeight() + 1);
+		preventEntitySpawning = false;
+		enablePersistence();
+	}
+
+	public boolean isInRangeToRenderDist(double distance) {
+		return super.isInRangeToRenderDist(distance);
+    }
+
+	public void setEffect(IMagicEffect effect) {
+	    effectDelegate.set(effect);
+	}
+
+	public IMagicEffect getEffect() {
+	    return effectDelegate.get();
+	}
+
+	@Override
+	protected void entityInit() {
+		super.entityInit();
+		dataManager.register(LEVEL, 0);
+		dataManager.register(EFFECT, new NBTTagCompound());
+		dataManager.register(OWNER, "");
+	}
+
+	public ItemStack onPlayerMiddleClick(EntityPlayer player) {
+	    ItemStack stack = new ItemStack(UItems.spell, 1);
+	    SpellRegistry.instance().enchantStack(stack, getEffect().getName());
+		return stack;
+	}
+
+	@Override
+    protected boolean canTriggerWalking() {
+	    return false;
+    }
+
+    @Override
+    public boolean isPushedByWater() {
+        return false;
+    }
+
+    @Override
+    public boolean canRenderOnFire() {
+        return false;
+    }
+
+    @Override
+	public void setOwner(EntityLivingBase owner) {
+		this.owner = owner;
+		setOwner(owner.getName());
+	}
+
+	protected void setOwner(String ownerName) {
+		if (ownerName != null && ownerName.length() != 0) {
+			dataManager.set(OWNER, ownerName);
+		}
+	}
+
+	protected String getOwnerName() {
+		String ownerName = dataManager.get(OWNER);
+
+		if (ownerName == null || ownerName.length() == 0) {
+			if (owner instanceof EntityPlayer) {
+				return owner.getName();
+			}
+
+			return "";
+        }
+
+        return ownerName;
+	}
+
+	@Override
+	public EntityLivingBase getOwner() {
+        if (owner == null) {
+        	String ownerName = dataManager.get(OWNER);
+        	if (ownerName != null && ownerName.length() > 0) {
+        		owner = world.getPlayerEntityByName(ownerName);
+        	}
+        }
+
+        return owner;
+    }
+
+	protected void displayTick() {
+		if (hasEffect()) {
+		    getEffect().renderAt(this, world, posX, posY, posZ, getLevel());
+		}
+	}
+
+	@Override
+	public void onUpdate() {
+		if (world.isRemote) {
+			displayTick();
+		}
+
+		if (getEffect() == null) {
+			setDead();
+		} else {
+			if (getEffect().getDead()) {
+				setDead();
+				onDeath();
+			} else {
+			    getEffect().updateAt(this, world, posX, posY, posZ, getLevel());
+			}
+
+			if (getEffect().allowAI()) {
+				super.onUpdate();
+			}
+		}
+	}
+
+	@Override
+	public void fall(float distance, float damageMultiplier) {
+
+	}
+
+	@Override
+	protected void updateFallState(double y, boolean onGround, IBlockState state, BlockPos pos) {
+	    this.onGround = true;
+    	//super.updateFallState(y, onGround = this.onGround = true, state, pos);
+    }
+
+	public boolean attackEntityFrom(DamageSource source, float amount) {
+		if (!world.isRemote) {
+			setDead();
+			onDeath();
+		}
+		return false;
+	}
+
+	protected void onDeath() {
+		SoundType sound = SoundType.STONE;
+
+		world.playSound(posX, posY, posZ, sound.getBreakSound(), SoundCategory.NEUTRAL, sound.getVolume(), sound.getPitch(), true);
+
+		if (world.getGameRules().getBoolean("doTileDrops")) {
+			int level = getLevel();
+
+			ItemStack stack = new ItemStack(UItems.spell, level + 1);
+			if (hasEffect()) {
+			    SpellRegistry.instance().enchantStack(stack, getEffect().getName());
+			}
+
+			entityDropItem(stack, 0);
+		}
+	}
+
+	public void setDead() {
+		if (hasEffect()) {
+			getEffect().setDead();
+		}
+		super.setDead();
+	}
+
+	public int getLevel() {
+		return dataManager.get(LEVEL);
+	}
+
+	public void setLevel(int radius) {
+		dataManager.set(LEVEL, radius);
+	}
+
+	public boolean tryLevelUp(ItemStack stack) {
+
+		if (SpellRegistry.stackHasEnchantment(stack)) {
+		    if (!getEffect().getName().equals(SpellRegistry.getKeyFromStack(stack))) {
+		        return false;
+		    }
+
+			increaseLevel();
+
+			if (!world.isRemote) {
+				if ((rand.nextFloat() * getLevel()) > 10 || overLevelCap()) {
+					world.createExplosion(this, posX, posY, posZ, getLevel()/2, true);
+					setDead();
+					return false;
+				}
+            }
+
+			playSound(SoundEvents.ENTITY_ZOMBIE_VILLAGER_CURE, 0.1f, 1);
+
+			return true;
+		}
+		return false;
+	}
+
+	public EnumActionResult applyPlayerInteraction(EntityPlayer player, Vec3d vec, EnumHand hand) {
+		if (Predicates.MAGI.test(player)) {
+			ItemStack currentItem = player.getHeldItem(EnumHand.MAIN_HAND);
+
+			if (currentItem != null && currentItem.getItem() instanceof ItemSpell) {
+				tryLevelUp(currentItem);
+
+				if (!player.capabilities.isCreativeMode) {
+					currentItem.shrink(1);
+
+					if (currentItem.isEmpty()) {
+						player.renderBrokenItemStack(currentItem);
+					}
+				}
+
+				return EnumActionResult.SUCCESS;
+			}
+		}
+
+		return EnumActionResult.FAIL;
+	}
+
+	public void increaseLevel() {
+		setLevel(getLevel() + 1);
+	}
+
+	public boolean canLevelUp() {
+		int max = getEffect().getMaxLevel();
+		return max < 0 || getLevel() < max;
+	}
+
+	public boolean overLevelCap() {
+		int max = getEffect().getMaxLevel();
+		return max > 0 && getLevel() >= (max * 1.1);
+	}
+
+	public void decreaseLevel() {
+		int level = getLevel() - 1;
+		if (level < 0) level = 0;
+		setLevel(level);
+	}
+
+	@Override
+	public Entity getEntity() {
+	    return this;
+	}
+
+	@Override
+	public void readEntityFromNBT(NBTTagCompound compound) {
+		super.readEntityFromNBT(compound);
+		setOwner(compound.getString("ownerName"));
+        setLevel(compound.getInteger("level"));
+
+		if (compound.hasKey("effect")) {
+		    setEffect(SpellRegistry.instance().createEffectFromNBT(compound.getCompoundTag("effect")));
+		}
+	}
+
+	@Override
+	public void writeEntityToNBT(NBTTagCompound compound) {
+		super.writeEntityToNBT(compound);
+
+        compound.setString("ownerName", getOwnerName());
+        compound.setInteger("level", getLevel());
+
+        if (hasEffect()) {
+			compound.setTag("effect", SpellRegistry.instance().serializeEffectToNBT(getEffect()));
+        }
+	}
+}

src/main/java/com/minelittlepony/unicopia/entity/IMagicals.java

@@ -0,0 +1,7 @@
+package com.minelittlepony.unicopia.entity;
+
+import net.minecraft.entity.passive.IAnimals;
+
+public interface IMagicals extends IAnimals {
+
+}

src/main/java/com/minelittlepony/unicopia/item/ItemSpell.java

@@ -1,6 +1,7 @@
 package com.minelittlepony.unicopia.item;
 
 import com.minelittlepony.unicopia.Predicates;
+import com.minelittlepony.unicopia.entity.EntitySpell;
 import com.minelittlepony.unicopia.spell.IMagicEffect;
 import com.minelittlepony.unicopia.spell.IUseAction;
 import com.minelittlepony.unicopia.spell.SpellCastResult;
@@ -43,8 +44,9 @@ public class ItemSpell extends Item implements ICastable {
             }
 
             if (dispenceResult == SpellCastResult.PLACE) {
+                BlockPos pos = source.getBlockPos();
 
-               // castContainedSpell(source.getWorld(), pos.getX(), pos.getY(), pos.getZ(), stack, effect);
+                castContainedSpell(source.getWorld(), pos, stack, effect);
 
                 stack.shrink(1);
             }
@@ -114,7 +116,7 @@ public class ItemSpell extends Item implements ICastable {
             pos = pos.offset(side);
 
             if (result == SpellCastResult.PLACE) {
-               // castContainedSpell(world, pos.getX(), pos.getY(), pos.getZ(), stack, effect).setOwner(player);
+                castContainedSpell(world, pos, stack, effect).setOwner(player);
             }
         }
 
@@ -169,11 +171,13 @@ public class ItemSpell extends Item implements ICastable {
 		return result;
 	}
 
-/*	protected static EntitySpell castContainedSpell(World world, int x, int y, int z, ItemStack stack, IMagicEffect effect) {
+	protected static EntitySpell castContainedSpell(World world, BlockPos pos, ItemStack stack, IMagicEffect effect) {
 		EntitySpell spell = new EntitySpell(world);
+
         spell.setEffect(effect);
-		spell.setLocationAndAngles(x + 0.5, y + 0.5, z + 0.5, 0, 0);
+		spell.setLocationAndAngles(pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5, 0, 0);
     	world.spawnEntity(spell);
+
     	return spell;
-	} */
+	}
 }

src/main/java/com/minelittlepony/unicopia/model/ModelGem.java

@@ -0,0 +1,126 @@
+package com.minelittlepony.unicopia.model;
+
+import com.minelittlepony.render.model.ModelQuads;
+import com.minelittlepony.unicopia.entity.EntitySpell;
+import com.minelittlepony.unicopia.spell.SpellRegistry;
+import com.minelittlepony.util.render.Color;
+import com.minelittlepony.util.render.Vertex;
+
+import net.minecraft.client.model.ModelBase;
+import net.minecraft.client.model.ModelRenderer;
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.entity.Entity;
+import net.minecraft.util.math.MathHelper;
+
+public class ModelGem extends ModelBase {
+
+	private ModelRenderer body;
+
+	public ModelGem() {
+        textureWidth = 256;
+        textureHeight = 256;
+
+		body = new ModelRenderer(this);
+		body.offsetY = 1.2f;
+
+		int size = 1;
+
+		body.cubeList.add(new ModelQuads(body).addFace(
+			new Vertex( size, 0,     size, 0,     0.5f),
+			new Vertex(-size, 0,     size, 0.25f, 0.25f),
+			new Vertex( 0, size * 2, 0, 0,     0.25f),
+			new Vertex( 0, size * 2, 0, 0,     0.25f)
+		).addFace(
+			new Vertex( size,  0,     size, 0,     0.25f),
+			new Vertex(-size,  0,     size, 0.25f, 0),
+			new Vertex( 0, -size * 2, 0, 0.25f, 0.25f),
+			new Vertex( 0, -size * 2, 0, 0.25f, 0.25f)
+		).addFace(
+			new Vertex(size, 0,    -size, 0.25f, 0.5f),
+			new Vertex(size, 0,     size, 0.5f,  0.25f),
+			new Vertex(0, size * 2, 0, 0.25f, 0.25f),
+			new Vertex(0, size * 2, 0, 0.25f, 0.25f)
+		).addFace(
+			new Vertex(size,  0,    -size, 0.25f, 0.25f),
+			new Vertex(size,  0,     size, 0.5f,  0),
+			new Vertex(0, -size * 2, 0, 0.5f,  0.25f),
+			new Vertex(0, -size * 2, 0, 0.5f,  0.25f)
+		).addFace(
+			new Vertex(-size, 0,    -size, 0.5f,  0.5f),
+			new Vertex( size, 0,    -size, 0.75f, 0.25f),
+			new Vertex( 0, size * 2, 0, 0.5f,  0.25f),
+			new Vertex( 0, size * 2, 0, 0.5f,  0.25f)
+		).addFace(
+			new Vertex(-size,  0,    -size, 0.5f,  0.25f),
+			new Vertex( size,  0,    -size, 0.75f, 0),
+			new Vertex( 0, -size * 2, 0, 0.75f, 0.25f),
+			new Vertex( 0, -size * 2, 0, 0.75f, 0.25f)
+		).addFace(
+			new Vertex(-size, 0,     size, 0.75f, 0.5f),
+			new Vertex(-size, 0,    -size, 1,     0.25f),
+			new Vertex( 0, size * 2, 0, 0.75f, 0.25f),
+			new Vertex( 0, size * 2, 0, 0.75f, 0.25f)
+		).addFace(
+			new Vertex(-size,  0,     size, 0.75f, 0.25f),
+			new Vertex(-size,  0,    -size, 1,     0),
+			new Vertex( 0, -size * 2, 0, 1,     0.25f),
+			new Vertex( 0, -size * 2, 0, 1,     0.25f)
+		));
+	}
+
+	@Override
+	public void render(Entity entity, float time, float walkSpeed, float stutter, float yaw, float pitch, float scale) {
+
+		GlStateManager.pushMatrix();
+
+		EntitySpell spell = (EntitySpell)entity;
+
+		float floatOffset = MathHelper.sin((spell.ticksExisted + stutter) / 10 + spell.hoverStart) / 10 + 0.1F;
+        GlStateManager.translate(0, floatOffset, 0);
+
+        floatOffset = (spell.ticksExisted + stutter) / 20;
+        if (spell.getLevel() > 0) {
+        	floatOffset *= spell.getLevel() + 1;
+        }
+
+        floatOffset += spell.hoverStart;
+        floatOffset *= 180 / (float)Math.PI;
+
+        GlStateManager.rotate(floatOffset, 0, 1, 0);
+
+        body.render(scale);
+
+        GlStateManager.enableBlend();
+        GlStateManager.disableAlpha();
+        GlStateManager.blendFunc(1, 1);
+
+        setLightingConditionsBrightness(0xF0F0);
+
+        Color.glColor(SpellRegistry.instance().getSpellTint(spell.getEffect().getName()), 1);
+
+        GlStateManager.scale(1.2F, 1.2F, 1.2F);
+        GlStateManager.translate(0, -0.2F, 0);
+
+		body.render(scale);
+
+		setLightingConditionsBrightness(entity.getBrightnessForRender());
+
+		GlStateManager.disableBlend();
+        GlStateManager.enableAlpha();
+
+		GlStateManager.popMatrix();
+	}
+
+	private void setLightingConditionsBrightness(int brightness) {
+        int texX = brightness % 0x10000;
+        int texY = brightness / 0x10000;
+
+	    OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, texX, texY);
+	}
+
+	@Override
+	public void setRotationAngles(float time, float walkSpeed, float stutter, float yaw, float pitch, float increment, Entity entity) {
+
+    }
+}

src/main/java/com/minelittlepony/unicopia/network/EffectSync.java

@@ -0,0 +1,53 @@
+package com.minelittlepony.unicopia.network;
+
+import com.minelittlepony.unicopia.spell.ICaster;
+import com.minelittlepony.unicopia.spell.IMagicEffect;
+import com.minelittlepony.unicopia.spell.SpellRegistry;
+
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.network.datasync.DataParameter;
+
+public class EffectSync<T extends EntityLivingBase> {
+    private IMagicEffect effect;
+
+    private final ICaster<T> owned;
+
+    private final DataParameter<NBTTagCompound> param;
+
+    public EffectSync(ICaster<T> owned, DataParameter<NBTTagCompound> param) {
+        this.owned = owned;
+        this.param = param;
+    }
+
+    public boolean has() {
+        return get() != null;
+    }
+
+    public IMagicEffect get() {
+        NBTTagCompound comp = owned.getEntity().getDataManager().get(param);
+
+        if (comp == null || !comp.hasKey("effect_id")) {
+            effect = null;
+        } else {
+            String id = comp.getString("effect_id");
+            if (effect == null || id != effect.getName()) {
+                effect = SpellRegistry.instance().createEffectFromNBT(comp);
+            } else {
+                effect.readFromNBT(comp);
+            }
+        }
+
+        return effect;
+    }
+
+    public void set(IMagicEffect effect) {
+        this.effect = effect;
+
+        if (effect == null) {
+            owned.getEntity().getDataManager().set(param, new NBTTagCompound());
+        } else {
+            owned.getEntity().getDataManager().set(param, SpellRegistry.instance().serializeEffectToNBT(effect));
+        }
+    }
+}

src/main/java/com/minelittlepony/unicopia/network/MsgPlayerAbility.java

@@ -32,13 +32,13 @@ public class MsgPlayerAbility implements IMessage, IMessageHandler<MsgPlayerAbil
     private String abilityJson;
 
     public MsgPlayerAbility(EntityPlayer player, IPower<?> power, IData data) {
-        senderId = player.getGameProfile().getId();
+        senderId = player.getUniqueID();
         powerIdentifier = power.getKeyName();
         abilityJson = gson.toJson(data, power.getPackageType());
     }
 
     private <T extends IData> void apply(IPower<T> power) {
-        EntityPlayer player = IPlayer.getPlayerEntity(senderId);
+        EntityPlayer player = IPlayer.getPlayerFromServer(senderId);
         if (player == null) {
             return;
         }

src/main/java/com/minelittlepony/unicopia/network/MsgPlayerCapabilities.java

@@ -15,7 +15,6 @@ import com.minelittlepony.unicopia.Race;
 import com.minelittlepony.unicopia.player.IPlayer;
 import com.minelittlepony.unicopia.player.PlayerSpeciesList;
 
-import net.minecraft.client.Minecraft;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.nbt.CompressedStreamTools;
 import net.minecraft.nbt.NBTTagCompound;
@@ -32,12 +31,14 @@ public class MsgPlayerCapabilities implements IMessage, IMessageHandler<MsgPlaye
     byte[] compoundTag;
 
     public MsgPlayerCapabilities(Race race, EntityPlayer player) {
-        this(race, player.getGameProfile().getId());
+        newRace = race;
+        senderId = player.getUniqueID();
+        compoundTag = new byte[0];
     }
 
     public MsgPlayerCapabilities(IPlayer player) {
         newRace = player.getPlayerSpecies();
-        senderId = player.getOwner().getGameProfile().getId();
+        senderId = player.getOwner().getUniqueID();
 
         try (ByteArrayOutputStream bytes = new ByteArrayOutputStream()) {
             NBTTagCompound nbt = player.toNBT();
@@ -49,30 +50,15 @@ public class MsgPlayerCapabilities implements IMessage, IMessageHandler<MsgPlaye
         }
     }
 
-    public MsgPlayerCapabilities(Race race, UUID playerId) {
-        newRace = race;
-        senderId = playerId;
-        compoundTag = new byte[0];
-    }
-
     @Override
     public void onPayload(MsgPlayerCapabilities message, IChannel channel) {
-        EntityPlayer self = Minecraft.getMinecraft().player;
+        EntityPlayer self = IPlayer.getPlayerFromClient(senderId);
-        UUID myid = self.getGameProfile().getId();
 
-        IPlayer player;
+        if (self == null) {
-        if (senderId.equals(myid)) {
+            System.out.println("[CLIENT] Player with id " + senderId + " was not found!");
-            player = PlayerSpeciesList.instance().getPlayer(self);
         } else {
-            EntityPlayer found = Minecraft.getMinecraft().world.getPlayerEntityByUUID(senderId);
+            System.out.println("[CLIENT] Got capabilities for " + senderId);
-
+            IPlayer player = PlayerSpeciesList.instance().getPlayer(self);
-            if (found == null) {
-                System.out.println("Player with id " + senderId + " was not found!");
-                return;
-            }
-
-            player = PlayerSpeciesList.instance().getPlayer(found);
-        }
 
             if (compoundTag.length > 0) {
                 try (ByteArrayInputStream input = new ByteArrayInputStream(compoundTag)) {
@@ -80,9 +66,11 @@ public class MsgPlayerCapabilities implements IMessage, IMessageHandler<MsgPlaye
 
                     player.readFromNBT(nbt);
                 } catch (IOException e) {
+
                 }
             } else {
                 player.setPlayerSpecies(newRace);
             }
         }
     }
+}

src/main/java/com/minelittlepony/unicopia/network/MsgRequestCapabilities.java

@@ -25,6 +25,6 @@ public class MsgRequestCapabilities implements IMessage, IMessageHandler<MsgRequ
         System.out.println("[SERVER] Sending capabilities to player id " + senderId);
         IPlayer player = PlayerSpeciesList.instance().getPlayer(senderId);
 
-        channel.respond(new MsgPlayerCapabilities(player.getPlayerSpecies(), senderId), senderId);
+        channel.respond(new MsgPlayerCapabilities(player), senderId);
     }
 }

src/main/java/com/minelittlepony/unicopia/player/IPlayer.java

@@ -4,6 +4,7 @@ import java.util.UUID;
 
 import com.minelittlepony.unicopia.spell.ICaster;
 
+import net.minecraft.client.Minecraft;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraftforge.fml.common.FMLCommonHandler;
@@ -34,16 +35,23 @@ public interface IPlayer extends ICaster<EntityPlayer>, IRaceContainer<EntityPla
 
     void beforeUpdate(EntityPlayer entity);
 
-    static EntityPlayer getPlayerEntity(UUID playerId) {
+    static EntityPlayer getPlayerFromServer(UUID playerId) {
-        EntityPlayer player = FMLCommonHandler.instance().getMinecraftServerInstance().getPlayerList().getPlayerByUUID(playerId);
-
-        if (player == null) {
         Entity e = FMLCommonHandler.instance().getMinecraftServerInstance().getEntityFromUuid(playerId);
+
         if (e instanceof EntityPlayer) {
             return (EntityPlayer)e;
         }
+
+        return null;
     }
 
-        return player;
+    static EntityPlayer getPlayerFromClient(UUID playerId) {
+        Minecraft mc = Minecraft.getMinecraft();
+
+        if (mc.player.getUniqueID().equals(playerId)) {
+            return mc.player;
+        }
+
+        return mc.world.getPlayerEntityByUUID(playerId);
     }
 }

src/main/java/com/minelittlepony/unicopia/player/PlayerCapabilities.java

@@ -1,13 +1,9 @@
 package com.minelittlepony.unicopia.player;
 
-import java.util.UUID;
-
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-
 import com.minelittlepony.unicopia.Race;
 import com.minelittlepony.unicopia.UClient;
 import com.minelittlepony.unicopia.Unicopia;
+import com.minelittlepony.unicopia.network.EffectSync;
 import com.minelittlepony.unicopia.network.MsgPlayerCapabilities;
 import com.minelittlepony.unicopia.spell.ICaster;
 import com.minelittlepony.unicopia.spell.IMagicEffect;
@@ -28,31 +24,33 @@ import net.minecraft.stats.StatList;
 
 class PlayerCapabilities implements IPlayer, ICaster<EntityPlayer> {
 
-    private static final Logger logger = LogManager.getLogger();
-
     private static final DataParameter<Integer> PLAYER_RACE = EntityDataManager
             .createKey(EntityPlayer.class, DataSerializers.VARINT);
+
     private static final DataParameter<Float> EXERTION = EntityDataManager
             .createKey(EntityPlayer.class, DataSerializers.FLOAT);
 
+    private static final DataParameter<NBTTagCompound> EFFECT = EntityDataManager
+            .createKey(EntityPlayer.class, DataSerializers.COMPOUND_TAG);
+
     private final PlayerAbilityDelegate powers = new PlayerAbilityDelegate(this);
 
     private final PlayerGravityDelegate gravity = new PlayerGravityDelegate(this);
 
     private final PlayerAttributes attributes = new PlayerAttributes();
 
+    private final EffectSync<EntityPlayer> effectDelegate = new EffectSync<>(this, EFFECT);
+
     private float nextStepDistance = 1;
 
-    private IMagicEffect effect;
-
     private EntityPlayer entity;
-    private UUID playerId;
 
     PlayerCapabilities(EntityPlayer player) {
         setOwner(player);
 
         player.getDataManager().register(PLAYER_RACE, Race.HUMAN.ordinal());
         player.getDataManager().register(EXERTION, 0F);
+        player.getDataManager().register(EFFECT, new NBTTagCompound());
     }
 
     @Override
@@ -66,22 +64,20 @@ class PlayerCapabilities implements IPlayer, ICaster<EntityPlayer> {
 
     @Override
     public void setPlayerSpecies(Race race) {
-        EntityPlayer self = getOwner();
+        EntityPlayer player = getOwner();
 
-        if (!PlayerSpeciesList.instance().speciesPermitted(race, getOwner())) {
+        if (!PlayerSpeciesList.instance().speciesPermitted(race, player)) {
             race = Race.HUMAN;
         }
 
-        if (self != null) {
+        player.getDataManager().set(PLAYER_RACE, race.ordinal());
-            getOwner().getDataManager().set(PLAYER_RACE, race.ordinal());
 
-            self.capabilities.allowFlying = race.canFly();
+        player.capabilities.allowFlying = race.canFly();
-            gravity.updateFlightStat(self, self.capabilities.isFlying);
+        gravity.updateFlightStat(player, player.capabilities.isFlying);
 
-            self.sendPlayerAbilities();
+        player.sendPlayerAbilities();
         sendCapabilities(false);
     }
-    }
 
     @Override
     public float getExertion() {
@@ -96,10 +92,12 @@ class PlayerCapabilities implements IPlayer, ICaster<EntityPlayer> {
     @Override
     public void sendCapabilities(boolean full) {
         if (!getOwner().getEntityWorld().isRemote) {
+            System.out.println("[SERVER] Sending player capabilities.");
+
             if (full) {
                 Unicopia.channel.broadcast(new MsgPlayerCapabilities(this));
             } else {
-                Unicopia.channel.broadcast(new MsgPlayerCapabilities(getPlayerSpecies(), getOwner().getGameProfile().getId()));
+                Unicopia.channel.broadcast(new MsgPlayerCapabilities(getPlayerSpecies(), getOwner()));
             }
         }
     }
@@ -136,15 +134,15 @@ class PlayerCapabilities implements IPlayer, ICaster<EntityPlayer> {
         powers.onUpdate(entity);
         gravity.onUpdate(entity);
 
-        if (effect != null) {
+        if (hasEffect()) {
             if (!getPlayerSpecies().canCast()) {
                 setEffect(null);
             } else {
                 if (entity.getEntityWorld().isRemote) { //  && entity.getEntityWorld().getWorldTime() % 10 == 0
-                    effect.render(entity);
+                    getEffect().render(entity);
                 }
 
-                if (!effect.update(entity)) {
+                if (!getEffect().update(entity)) {
                     setEffect(null);
                 }
             }
@@ -196,21 +194,27 @@ class PlayerCapabilities implements IPlayer, ICaster<EntityPlayer> {
     @Override
     public void writeToNBT(NBTTagCompound compound) {
         compound.setString("playerSpecies", getPlayerSpecies().name());
+
         compound.setTag("powers", powers.toNBT());
         compound.setTag("gravity", gravity.toNBT());
 
+        IMagicEffect effect = getEffect();
+
         if (effect != null) {
-            compound.setString("effect_id", effect.getName());
+            compound.setTag("effect", SpellRegistry.instance().serializeEffectToNBT(effect));
-            compound.setTag("effect", effect.toNBT());
         }
     }
 
     @Override
     public void readFromNBT(NBTTagCompound compound) {
         setPlayerSpecies(Race.fromName(compound.getString("playerSpecies"), Race.HUMAN));
+
         powers.readFromNBT(compound.getCompoundTag("powers"));
         gravity.readFromNBT(compound.getCompoundTag("gravity"));
-        effect = SpellRegistry.instance().createEffectFroNBT(compound);
+
+        if (compound.hasKey("effect")) {
+            setEffect(SpellRegistry.instance().createEffectFromNBT(compound.getCompoundTag("effect")));
+        }
     }
 
     @Override
@@ -221,30 +225,23 @@ class PlayerCapabilities implements IPlayer, ICaster<EntityPlayer> {
 
     @Override
     public void setEffect(IMagicEffect effect) {
-        this.effect = effect;
+        effectDelegate.set(effect);
 
         sendCapabilities(true);
     }
 
     @Override
     public IMagicEffect getEffect() {
-        return effect;
+        return effectDelegate.get();
     }
 
     @Override
     public void setOwner(EntityPlayer owner) {
         entity = owner;
-        playerId = owner.getGameProfile().getId();
     }
 
     @Override
     public EntityPlayer getOwner() {
-        if (entity == null) {
-            entity = IPlayer.getPlayerEntity(playerId);
-            if (entity == null) {
-                logger.error("Capabilities without player! Mismatched id was" + playerId);
-            }
-        }
         return entity;
     }
 }

src/main/java/com/minelittlepony/unicopia/player/PlayerSpeciesList.java

@@ -46,7 +46,7 @@ public class PlayerSpeciesList {
     }
 
     public IPlayer getPlayer(UUID playerId) {
-        return getPlayer(IPlayer.getPlayerEntity(playerId));
+        return getPlayer(IPlayer.getPlayerFromServer(playerId));
     }
 
     public <T extends Entity> IRaceContainer<T> getEntity(T entity) {

src/main/java/com/minelittlepony/unicopia/render/RenderGem.java

@@ -0,0 +1,30 @@
+package com.minelittlepony.unicopia.render;
+
+import com.minelittlepony.unicopia.entity.EntitySpell;
+import com.minelittlepony.unicopia.model.ModelGem;
+
+import net.minecraft.client.renderer.entity.RenderLiving;
+import net.minecraft.client.renderer.entity.RenderManager;
+import net.minecraft.util.ResourceLocation;
+
+public class RenderGem extends RenderLiving<EntitySpell> {
+
+	private static final ResourceLocation gem = new ResourceLocation("unicopia", "textures/entity/gem.png");
+
+	public RenderGem(RenderManager rendermanagerIn) {
+		super(rendermanagerIn, new ModelGem(), 0);
+	}
+
+	protected ResourceLocation getEntityTexture(EntitySpell entity) {
+		return gem;
+	}
+
+	protected float getDeathMaxRotation(EntitySpell entity) {
+		return 0;
+    }
+
+	protected boolean canRenderName(EntitySpell targetEntity) {
+        return super.canRenderName(targetEntity) && (targetEntity.getAlwaysRenderNameTagForRender()
+                 || targetEntity.hasCustomName() && targetEntity == renderManager.pointedEntity);
+    }
+}

src/main/java/com/minelittlepony/unicopia/spell/ICaster.java

@@ -14,6 +14,9 @@ public interface ICaster<E extends EntityLivingBase> extends IOwned<E> {
         return getEffect() != null;
     }
 
+    /**
+     * Gets the entity directly responsible for casting.
+     */
     default Entity getEntity() {
         return getOwner();
     }

src/main/java/com/minelittlepony/unicopia/spell/IDispenceable.java

@@ -8,7 +8,7 @@ import net.minecraft.util.EnumFacing;
  * Represents an object with an action to perform when dispensed from a dispenser.
  *
  */
-public interface IDispenceable {
+public interface IDispenceable extends IMagicEffect {
 
 	/**
 	 * Called when dispensed.

src/main/java/com/minelittlepony/unicopia/spell/SpellRegistry.java

@@ -34,8 +34,8 @@ public class SpellRegistry {
         return null;
     }
 
-    public IMagicEffect createEffectFroNBT(NBTTagCompound compound) {
+    public IMagicEffect createEffectFromNBT(NBTTagCompound compound) {
-        if (compound.hasKey("effect_id") && compound.hasKey("effect")) {
+        if (compound.hasKey("effect_id")) {
             IMagicEffect effect = getSpellFromName(compound.getString("effect_id"));
 
             if (effect != null) {
@@ -48,6 +48,14 @@ public class SpellRegistry {
         return null;
     }
 
+    public NBTTagCompound serializeEffectToNBT(IMagicEffect effect) {
+        NBTTagCompound compound = effect.toNBT();
+
+        compound.setString("effect_id", effect.getName());
+
+        return compound;
+    }
+
     public IDispenceable getDispenseActionFrom(ItemStack stack) {
         String key = getKeyFromStack(stack);
 
@@ -80,7 +88,7 @@ public class SpellRegistry {
         return stack;
     }
 
-    private String getKeyFromStack(ItemStack stack) {
+    public static String getKeyFromStack(ItemStack stack) {
         if (stack.isEmpty() || !stack.hasTagCompound() || !stack.getTagCompound().hasKey("spell")) {
             return "";
         }

src/main/java/com/minelittlepony/unicopia/spell/SpellShield.java

@@ -57,7 +57,7 @@ public class SpellShield extends AbstractSpell {
 	protected void spawnParticles(World w, double x, double y, double z, int strength) {
 	    IShape sphere = new Sphere(true, strength);
 
-	    for (int i = 0; i < strength; i++) {
+	    for (int i = 0; i < strength * 6; i++) {
     	    Vec3d pos = sphere.computePoint(w.rand);
     	    Particles.instance().spawnParticle(Unicopia.MAGIC_PARTICLE, false,
     	            pos.x + x, pos.y + y, pos.z + z,