Initial commit

src/main/java/electroblob/wizardry/potion/ICustomPotionParticles.java

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+package electroblob.wizardry.potion;
+
+import net.minecraft.world.World;
+
+/**
+ * Interface for potion effects that spawn custom particles instead of (or as well as) the vanilla 'swirly' particles.
+ * @author Electroblob
+ * @since Wizardry 1.2
+ */
+// TODO: Backport.
+public interface ICustomPotionParticles {
+	
+	/**
+	 * Called from the event handler to spawn a <b>single</b> custom potion particle. To get an instance of
+	 * <code>Random</code> inside this method, use <code>world.rand</code>.
+	 * @param world The world to spawn the particle in.
+	 * @param x The x coordinate of the particle, already set to a random value within the entity's bounding box.
+	 * @param y The y coordinate of the particle, already set to a random value within the entity's bounding box.
+	 * @param z The z coordinate of the particle, already set to a random value within the entity's bounding box.
+	 */
+	void spawnCustomParticle(World world, double x, double y, double z);
+
+}