Tidy up entity geometry stuff:

- Add a getCentre method for entities to GeometryUtils
- Replace getPositionEyes(0) with getPositionEyes(1) since it's more efficient, and by definition they must be the same
- Remove all the silly getEntityBoundingBox().minY stuff, this bug has been fixed since 1.8! (which begs the question: if it was considered a bug, how on earth did it go unfixed for that long?)
- A few other small things

src/main/java/electroblob/wizardry/client/animation/ActionAnimation.java

@@ -3,6 +3,7 @@ package electroblob.wizardry.client.animation;
 import electroblob.wizardry.data.WizardData;
 import electroblob.wizardry.item.SpellActions;
 import electroblob.wizardry.spell.Grapple;
+import electroblob.wizardry.util.GeometryUtils;
 import electroblob.wizardry.util.InventoryUtils;
 import net.minecraft.client.model.ModelBiped;
 import net.minecraft.entity.EntityLivingBase;
@@ -100,7 +101,7 @@ public abstract class ActionAnimation extends Animation {
 				if(hit.entityHit instanceof EntityLivingBase){
 					// If the target is an entity, we need to use the entity's centre rather than the original hit position
 					// because the entity will have moved!
-					target = new Vec3d(hit.entityHit.posX, hit.entityHit.getEntityBoundingBox().minY + hit.entityHit.height/2, hit.entityHit.posZ);
+					target = GeometryUtils.getCentre(hit.entityHit);
 				}
 
 				EnumHandSide side = InventoryUtils.getSideForHand(player, player.getActiveHand());

src/main/java/electroblob/wizardry/client/particle/ParticleTargeted.java

@@ -95,7 +95,7 @@ public abstract class ParticleTargeted extends ParticleWizardry {
 		if(this.target != null){
 
 			this.targetX = this.target.prevPosX + (this.target.posX - this.target.prevPosX) * partialTicks;
-			double correction = this.target.getEntityBoundingBox().minY - this.target.posY;
+			double correction = this.target.posY - this.target.posY;
 			this.targetY = this.target.prevPosY + (this.target.posY - this.target.prevPosY) * partialTicks
 					+ target.height/2 + correction;
 			this.targetZ = this.target.prevPosZ + (this.target.posZ - this.target.prevPosZ) * partialTicks;

src/main/java/electroblob/wizardry/client/particle/ParticleWizardry.java

@@ -206,7 +206,7 @@ public abstract class ParticleWizardry extends Particle {
 		this.entity = entity;
 		// Set these to the correct values
 		if(entity != null){
-			this.setPosition(this.entity.posX + relativeX, this.entity.getEntityBoundingBox().minY
+			this.setPosition(this.entity.posX + relativeX, this.entity.posY
 					+ relativeY, this.entity.posZ + relativeZ);
 			this.prevPosX = this.posX;
 			this.prevPosY = this.posY;

src/main/java/electroblob/wizardry/client/renderer/entity/RenderFireRing.java

@@ -82,7 +82,7 @@ public class RenderFireRing extends Render<EntityFireRing> {
 				float f2 = 0.5F;
 				float f3 = 0.0F;
 				float f4 = 0.2f;
-				float f5 = (float)(entity.posY - entity.getEntityBoundingBox().minY);
+				float f5 = (float)(entity.posY - entity.posY);
 				GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
 				float f61 = 0.0F;
 				int i = 0;
@@ -129,7 +129,7 @@ public class RenderFireRing extends Render<EntityFireRing> {
 				float f2 = 0.5F;
 				float f3 = 0.0F;
 				float f4 = 0.2f;
-				float f5 = (float)(entity.posY - entity.getEntityBoundingBox().minY);
+				float f5 = (float)(entity.posY - entity.posY);
 				GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
 				float f61 = 0.0F;
 				int i = 0;