Start adding a gui for the various mod options

src/main/java/com/minelittlepony/gui/Button.java

@@ -0,0 +1,64 @@
+package com.minelittlepony.gui;
+
+import java.util.List;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiButton;
+
+public class Button extends GuiButton implements IGuiTooltipped<Button> {
+
+    private int tipX = 0;
+    private int tipY = 0;
+
+    protected IGuiAction<Button> action;
+
+    private List<String> tooltip = null;
+
+    @SuppressWarnings("unchecked")
+    public Button(int x, int y, int width, int height, String label, IGuiAction<? extends Button> callback) {
+        super(5000, x, y, width, height, GameGui.format(label));
+        action = (IGuiAction<Button>)callback;
+    }
+
+    public Button setEnabled(boolean enable) {
+        enabled = enable;
+        return this;
+    }
+
+    @Override
+    public Button setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip;
+        return this;
+    }
+
+    protected List<String> getTooltip() {
+        return tooltip;
+    }
+
+    @Override
+    public void renderToolTip(Minecraft mc, int mouseX, int mouseY) {
+        List<String> tooltip = getTooltip();
+
+        if (visible && isMouseOver() && tooltip != null) {
+            mc.currentScreen.drawHoveringText(tooltip, mouseX + tipX, mouseY + tipY);
+        }
+    }
+
+    @Override
+    public Button setTooltipOffset(int x, int y) {
+        tipX = x;
+        tipY = y;
+        return this;
+    }
+
+    @Override
+    public boolean mousePressed(Minecraft mc, int mouseX, int mouseY) {
+        if (super.mousePressed(mc, mouseX, mouseY)) {
+            action.perform(this);
+
+            return false;
+        }
+
+        return false;
+    }
+}

src/main/java/com/minelittlepony/gui/GameGui.java

@@ -0,0 +1,62 @@
+package com.minelittlepony.gui;
+
+import org.apache.commons.lang3.text.WordUtils;
+
+import java.util.List;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.PositionedSoundRecord;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.resources.I18n;
+import net.minecraft.util.SoundEvent;
+
+public abstract class GameGui extends GuiScreen {
+
+    protected static String format(String string, Object... pars) {
+        return string == null ? null : I18n.format(string, pars);
+    }
+
+    /**
+     * Formats a translation string and returns it in a list wrapped to a given width.
+     * This can be safely used in initGui, where the fontRenderer is often still null.
+     */
+    protected List<String> formatMultiLine(String string, int width, Object...pars) {
+        FontRenderer fr = fontRenderer;
+
+        if (fr == null) {
+            fr = Minecraft.getMinecraft().fontRenderer;
+        }
+
+        return fr.listFormattedStringToWidth(format(string, pars), width);
+    }
+
+    protected void playSound(SoundEvent event) {
+        mc.getSoundHandler().playSound(PositionedSoundRecord.getMasterRecord(event, 1));
+    }
+
+    /**
+     * Converts a given string to title case regardless of initial case.
+     */
+    protected static String toTitleCase(String string) {
+        return WordUtils.capitalize(string.toLowerCase());
+    }
+
+    @Override
+    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
+        drawContents(mouseX, mouseY, partialTicks);
+        postDrawContents(mouseX, mouseY, partialTicks);
+    }
+
+    protected void drawContents(int mouseX, int mouseY, float partialTicks) {
+        super.drawScreen(mouseX, mouseY, partialTicks);
+    }
+
+    protected void postDrawContents(int mouseX, int mouseY, float partialTicks) {
+        buttonList.forEach(button -> {
+            if (button instanceof IGuiTooltipped) {
+                ((IGuiTooltipped<?>)button).renderToolTip(mc, mouseX, mouseY);
+            }
+        });
+    }
+}

src/main/java/com/minelittlepony/gui/IGuiAction.java

@@ -0,0 +1,15 @@
+package com.minelittlepony.gui;
+
+/**
+ * Response actions for UI events.
+ */
+@FunctionalInterface
+public interface IGuiAction<T> {
+    /**
+     * Performs this action now.
+     *
+     * @param value    New Value of the field being changed
+     * @return Adjusted value the field must take on
+     */
+    void perform(T sender);
+}

src/main/java/com/minelittlepony/gui/IGuiCallback.java

@@ -0,0 +1,15 @@
+package com.minelittlepony.gui;
+
+/**
+ * Response actions for UI events.
+ */
+@FunctionalInterface
+public interface IGuiCallback<T> {
+    /**
+     * Performs this action now.
+     *
+     * @param value    New Value of the field being changed
+     * @return Adjusted value the field must take on
+     */
+    T perform(T value);
+}

src/main/java/com/minelittlepony/gui/IGuiTooltipped.java

@@ -0,0 +1,20 @@
+package com.minelittlepony.gui;
+
+import net.minecraft.client.Minecraft;
+
+import com.google.common.base.Splitter;
+
+import java.util.List;
+
+public interface IGuiTooltipped<T extends IGuiTooltipped<T>> {
+
+    T setTooltip(List<String> tooltip);
+
+    T setTooltipOffset(int x, int y);
+
+    default T setTooltip(String tooltip) {
+        return setTooltip(Splitter.onPattern("\r?\n|\\\\n").splitToList(GameGui.format(tooltip)));
+    }
+
+    void renderToolTip(Minecraft mc, int mouseX, int mouseY);
+}

src/main/java/com/minelittlepony/gui/Label.java

@@ -0,0 +1,44 @@
+package com.minelittlepony.gui;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiButton;
+
+/**
+ * A simple label for drawing text to a gui screen.
+ *
+ * @author Sollace
+ *
+ */
+public class Label extends GuiButton {
+
+    private boolean center;
+
+    private int color;
+
+    private String text;
+
+    public Label(int x, int y, String translationString, int color) {
+        this(x, y, translationString, color, false);
+    }
+
+    public Label(int x, int y, String translationString, int color, boolean center) {
+        super(0, x, y, "");
+        this.color = color;
+        this.center = center;
+        this.text = translationString;
+    }
+
+    @Override
+    public boolean mousePressed(Minecraft mc, int mouseX, int mouseY) {
+        return false;
+    }
+
+    @Override
+    public void drawButton(Minecraft mc, int mouseX, int mouseY, float partialTicks) {
+        if (center) {
+            drawCenteredString(mc.fontRenderer, GameGui.format(text), x, y, color);
+        } else {
+            drawString(mc.fontRenderer, GameGui.format(text), x, y, color);
+        }
+    }
+}

src/main/java/com/minelittlepony/gui/Slider.java

@@ -0,0 +1,44 @@
+package com.minelittlepony.gui;
+
+import net.minecraft.client.gui.GuiSlider;
+import net.minecraft.client.gui.GuiPageButtonList.GuiResponder;
+
+/**
+ * A slider for sliding.
+ *
+ * @author Sollace
+ *
+ */
+public class Slider extends GuiSlider {
+
+    private static Responder callback;
+
+    public Slider(int x, int y, float minIn, float maxIn, float defaultValue, GuiSlider.FormatHelper formatter, IGuiCallback<Float> action) {
+        super(callback = new Responder(action), 0, x, y, "", minIn, maxIn, defaultValue, formatter);
+        callback.owner = this;
+        callback = null;
+    }
+
+    private static final class Responder implements GuiResponder {
+
+        private final IGuiCallback<Float> action;
+
+        private Slider owner;
+
+        private Responder(IGuiCallback<Float> callback) {
+            action = callback;
+        }
+
+        @Override
+        public void setEntryValue(int id, boolean value) { }
+
+        @Override
+        public void setEntryValue(int id, float value) {
+            owner.setSliderValue(action.perform(value), false);
+        }
+
+        @Override
+        public void setEntryValue(int id, String value) { }
+
+    }
+}

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

@@ -6,9 +6,11 @@ import java.util.UUID;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
+import com.minelittlepony.gui.Button;
 import com.minelittlepony.jumpingcastle.api.Target;
 import com.minelittlepony.unicopia.entity.EntityFakeClientPlayer;
 import com.minelittlepony.unicopia.extern.MineLP;
+import com.minelittlepony.unicopia.gui.GuiScreenSettings;
 import com.minelittlepony.unicopia.init.UEntities;
 import com.minelittlepony.unicopia.init.UParticles;
 import com.minelittlepony.unicopia.input.Keyboard;
@@ -18,17 +20,14 @@ import com.minelittlepony.unicopia.player.IPlayer;
 import com.minelittlepony.unicopia.player.PlayerSpeciesList;
 import com.minelittlepony.unicopia.render.DisguiseRenderer;
 import com.minelittlepony.util.gui.ButtonGridLayout;
-import com.minelittlepony.util.gui.UButton;
 import com.minelittlepony.util.lang.ClientLocale;
 import com.mojang.authlib.GameProfile;
 
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.audio.PositionedSoundRecord;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.init.SoundEvents;
 import net.minecraft.world.IInteractionObject;
 
 import static com.minelittlepony.util.gui.ButtonGridLayout.*;
@@ -62,11 +61,10 @@ public class UnicopiaClient extends UClient {
     static void addUniButton(List<GuiButton> buttons) {
         ButtonGridLayout layout = new ButtonGridLayout(buttons);
 
-        GuiButton uni = new UButton(layout.getNextButtonId(), 0, 0, 150, 20, ClientLocale.format("gui.unicopia"), b -> {
+        GuiButton uni = new Button(0, 0, 150, 20, ClientLocale.format("gui.unicopia"), b -> {
-            Minecraft.getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.getMasterRecord(SoundEvents.BLOCK_ANVIL_USE, 1));
+            Minecraft mc = Minecraft.getMinecraft();
-            b.displayString = "<< WIP >>";
 
-            return false;
+            mc.displayGuiScreen(new GuiScreenSettings(mc.currentScreen));
         });
 
         List<Integer> possibleXCandidates = list(layout.getColumns());

src/main/java/com/minelittlepony/unicopia/gui/GuiScreenSettings.java

@@ -0,0 +1,33 @@
+package com.minelittlepony.unicopia.gui;
+
+import com.minelittlepony.gui.Button;
+import com.minelittlepony.gui.GameGui;
+import com.minelittlepony.util.lang.ClientLocale;
+
+import net.minecraft.client.gui.GuiScreen;
+
+public class GuiScreenSettings extends GameGui {
+
+    private String title = "";
+
+    private final GuiScreen parent;
+
+    public GuiScreenSettings(GuiScreen parent) {
+        this.parent = parent;
+    }
+
+    @Override
+    public void initGui() {
+        title = ClientLocale.format("options.title");
+
+        addButton(new Button(width / 2 - 100, height / 6 + 168, 200, 20, "gui.done", sender -> mc.displayGuiScreen(parent)));
+    }
+
+    @Override
+    protected void drawContents(int mouseX, int mouseY, float partialTicks) {
+        drawDefaultBackground();
+        drawCenteredString(fontRenderer, title, width / 2, 15, 16777215);
+
+        super.drawScreen(mouseX, mouseY, partialTicks);
+    }
+}

src/main/java/com/minelittlepony/util/gui/UButton.java

@@ -1,24 +0,0 @@
-package com.minelittlepony.util.gui;
-
-import java.util.function.Function;
-
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.GuiButton;
-
-public class UButton extends GuiButton {
-
-    private final Function<GuiButton, Boolean> action;
-
-    public UButton(int id, int x, int y, int w, int h, String label, Function<GuiButton, Boolean> action) {
-        super(id, x, y, w, h, label);
-        this.action = action;
-    }
-
-    public boolean mousePressed(Minecraft mc, int mouseX, int mouseY) {
-        if (super.mousePressed(mc, mouseX, mouseY)) {
-            return action.apply(this);
-        }
-
-        return false;
-    }
-}