Gems will produce particles of the same colour as their magic

src/main/java/com/minelittlepony/unicopia/particle/client/ParticleUnicornMagic.java

@@ -1,5 +1,7 @@
 package com.minelittlepony.unicopia.particle.client;
 
+import com.minelittlepony.util.render.Color;
+
 import net.minecraft.client.particle.Particle;
 
 import net.minecraft.client.renderer.BufferBuilder;
@@ -13,10 +15,10 @@ public class ParticleUnicornMagic extends Particle {
     private double portalPosZ;
 
     public ParticleUnicornMagic(int id, World w, double x, double y, double z, double vX, double vY, double vZ, int... args) {
-        this(w, x, y, z, vX, vY, vZ);
+        this(w, x, y, z, vX, vY, vZ, args.length > 0 ? args[0] : -1);
     }
 
-    public ParticleUnicornMagic(World w, double x, double y, double z, double vX, double vY, double vZ) {
+    public ParticleUnicornMagic(World w, double x, double y, double z, double vX, double vY, double vZ, int tint) {
         super(w, x, y, z, vX, vY, vZ);
         motionX = vX;
         motionY = vY;
@@ -29,12 +31,26 @@ public class ParticleUnicornMagic extends Particle {
 
         setParticleTextureIndex((int)(Math.random() * 8));
 
-        particleRed = particleGreen = particleBlue = 1;
+        if (tint >= 0) {
+            particleRed = Color.r(tint);
+            particleGreen = Color.g(tint);
+            particleBlue = Color.b(tint);
+        } else {
+            particleRed = 1;
+            particleGreen = 1;
+            particleBlue = 1;
+
             particleGreen *= 0.3F;
 
-        if (rand.nextBoolean()) particleBlue *= 0.4F;
+            if (rand.nextBoolean()) {
-        if (rand.nextBoolean()) particleRed *= 0.9F;
+                particleBlue *= 0.4F;
-        if (rand.nextBoolean()) particleGreen += 0.5F;
+            }
+            if (rand.nextBoolean()) {
+                particleRed *= 0.9F;
+            }
+            if (rand.nextBoolean()) {
+                particleGreen += 0.5F;
+            }
 
             if (rand.nextBoolean()) {
                 particleGreen *= 2F;
@@ -42,6 +58,7 @@ public class ParticleUnicornMagic extends Particle {
                 particleRed *= 3.9F;
             }
         }
+    }
 
     public void renderParticle(BufferBuilder renderer, Entity e, float p_70539_2_, float p_70539_3_, float p_70539_4_, float p_70539_5_, float p_70539_6_, float p_70539_7_) {
         float f6 = 1 - ((particleAge + p_70539_2_) / particleMaxAge);

src/main/java/com/minelittlepony/unicopia/power/IPower.java

@@ -42,7 +42,7 @@ public interface IPower<T extends IData> extends IKeyBind {
         return player.posY + player.getEyeHeight() - 1;
     }
 
-    static void spawnParticles(int particleId, Entity entity, int count) {
+    static void spawnParticles(int particleId, Entity entity, int count, int...args) {
         double halfDist = entity.getEyeHeight() / 1.5;
         double middle = entity.getEntityBoundingBox().minY + halfDist;
 
@@ -55,7 +55,7 @@ public interface IPower<T extends IData> extends IKeyBind {
                     entity.posX + point.x,
                     middle + point.y,
                     entity.posZ + point.z,
-                    0, 0, 0);
+                    0, 0, 0, args);
         }
     }
 

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

@@ -39,7 +39,7 @@ public class GenericSpell extends AbstractSpell {
 
     @Override
     public void render(ICaster<?> source) {
-        source.spawnParticles(UParticles.UNICORN_MAGIC, 1);
+        source.spawnParticles(UParticles.UNICORN_MAGIC, 1, getTint());
     }
 
     @Override

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

@@ -70,8 +70,8 @@ public interface ICaster<E extends EntityLivingBase> extends IOwned<E>, ILevelle
         return getEntity().getPositionVector();
     }
 
-    default void spawnParticles(int particleId, int count) {
+    default void spawnParticles(int particleId, int count, int...args) {
-        IPower.spawnParticles(particleId, getEntity(), count);
+        IPower.spawnParticles(particleId, getEntity(), count, args);
     }
 
     default void spawnParticles(IShape area, int count, Consumer<Vec3d> particleSpawner) {

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

@@ -49,7 +49,7 @@ public class SpellCharge extends AbstractAttachableSpell {
                 IShape line = new Line(start, target.getPositionVector());
 
                 source.spawnParticles(line, (int)line.getVolumeOfSpawnableSpace(), pos -> {
-                    Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos.add(start), 0, 0, 0);
+                    Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos.add(start), 0, 0, 0, getTint());
                 });
             }
 

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

@@ -151,7 +151,7 @@ public class SpellPortal extends AbstractSpell.RangedAreaSpell implements IUseAc
     @Override
     public void render(ICaster<?> source) {
         source.spawnParticles(getPortalZone(), 10, pos -> {
-            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos, 0, 0, 0);
+            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos, 0, 0, 0, getTint());
         });
     }
 

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

@@ -44,10 +44,10 @@ public class SpellReveal extends AbstractSpell {
         IShape area = new Sphere(false, 15);
 
         source.spawnParticles(area, 5, pos -> {
-            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos, 0, 0, 0);
+            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos, 0, 0, 0, getTint());
         });
 
-        source.spawnParticles(UParticles.UNICORN_MAGIC, 5);
+        source.spawnParticles(UParticles.UNICORN_MAGIC, 5, getTint());
     }
 
     @Override

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

@@ -40,7 +40,7 @@ public class SpellShield extends AbstractSpell.RangedAreaSpell implements IAttac
         float radius = 4 + (source.getCurrentLevel() * 2);
 
         source.spawnParticles(new Sphere(true, radius), (int)(radius * 6), pos -> {
-            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos, 0, 0, 0);
+            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, pos, 0, 0, 0, getTint());
         });
 
         particlEffect

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

@@ -33,7 +33,7 @@ public class SpellVortex extends SpellShield {
         Vec3d pos = source.getOriginVector();
 
         source.spawnParticles(new Sphere(false, range), range * 9, p -> {
-            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, p, p.subtract(pos));
+            Particles.instance().spawnParticle(UParticles.UNICORN_MAGIC, false, p, p.subtract(pos), getTint());
         });
     }