Add pixie trail particle

src/main/java/biomesoplenty/api/particle/BOPParticleTypes.java

@@ -0,0 +1,6 @@
+package biomesoplenty.api.particle;
+
+public enum BOPParticleTypes
+{
+    PIXIETRAIL;
+}

src/main/java/biomesoplenty/client/particle/EntityPixieTrailFX.java

@@ -0,0 +1,106 @@
+/*******************************************************************************
+ * Copyright 2014, the Biomes O' Plenty Team
+ * 
+ * This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License.
+ * 
+ * To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.
+ ******************************************************************************/
+
+package biomesoplenty.client.particle;
+
+import net.minecraft.client.particle.EntityFX;
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.client.renderer.WorldRenderer;
+import net.minecraft.client.renderer.texture.SimpleTexture;
+import net.minecraft.entity.Entity;
+import net.minecraft.util.MathHelper;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.World;
+
+public class EntityPixieTrailFX extends EntityFX
+{
+    
+    public static ResourceLocation textureLocation = new ResourceLocation("biomesoplenty:textures/particles/pixietrail.png");
+    public static SimpleTexture texture;
+    float pixieTrailParticleScale;
+
+    public EntityPixieTrailFX(World world, double xCoordIn, double yCoordIn, double zCoordIn, double xSpeedIn, double ySpeedIn, double zSpeedIn)
+    {
+        this(world, xCoordIn, yCoordIn, zCoordIn, xSpeedIn, ySpeedIn, zSpeedIn, 1.0F);
+    }
+    
+    public EntityPixieTrailFX(World world, double xCoordIn, double yCoordIn, double zCoordIn, double xSpeedIn, double ySpeedIn, double zSpeedIn, float par14)
+    {
+        super(world, xCoordIn, yCoordIn, zCoordIn, 0.0D, 0.0D, 0.0D);
+                
+        this.motionX *= 0.10000000149011612D;
+        this.motionY *= 0.10000000149011612D;
+        this.motionZ *= 0.10000000149011612D;
+        this.motionX += xSpeedIn;
+        this.motionY += ySpeedIn;
+        this.motionZ += zSpeedIn;
+        this.particleScale *= 0.75F;
+        this.particleScale *= par14;
+        this.pixieTrailParticleScale = this.particleScale;
+        this.particleMaxAge = (int)((8.0D / (Math.random() * 0.8D + 0.2D)) * 8);
+        this.particleMaxAge = (int)((float)this.particleMaxAge * par14);
+        this.particleAge = (particleMaxAge / 2) + (int)((particleMaxAge / 2) * world.rand.nextInt(7));
+        this.particleAlpha = 1.0F;
+        this.noClip = false;
+    }
+    
+    @Override
+    public void renderParticle(WorldRenderer worldRendererIn, Entity entity, float partialTicks, float p_180434_4_, float p_180434_5_, float p_180434_6_, float p_180434_7_, float p_180434_8_)
+    {
+        
+        // EffectRenderer will by default bind the vanilla particles texture, override with our own (this is loaded and initialized in ClientProxy)
+        GlStateManager.bindTexture(texture.getGlTextureId());
+        
+        float scaleMultiplier = ((float)this.particleAge + partialTicks) / (float)this.particleMaxAge * 32.0F;
+        scaleMultiplier = MathHelper.clamp_float(scaleMultiplier, 0.0F, 1.0F);
+        this.particleScale = this.particleScale * scaleMultiplier;
+        
+        GlStateManager.depthMask(false);
+        GlStateManager.enableBlend();
+        GlStateManager.blendFunc(770, 1);
+
+        super.renderParticle(worldRendererIn, entity, partialTicks, p_180434_4_, p_180434_5_, p_180434_6_, p_180434_7_, p_180434_8_);
+
+        GlStateManager.disableBlend();
+        GlStateManager.depthMask(true);        
+    }
+    
+    @Override
+    public void onUpdate()
+    {
+        prevPosX = posX;
+        prevPosY = posY;
+        prevPosZ = posZ;
+
+        if (particleAge++ >= particleMaxAge)
+        {
+            this.setDead();
+        }
+
+        this.setParticleTextureIndex(7 - particleAge * 8 / particleMaxAge);
+        this.moveEntity(motionX, motionY, motionZ);
+
+        if (posY == prevPosY)
+        {
+            motionX *= 1.1D;
+            motionZ *= 1.1D;
+        }
+
+        motionX *= 0.9599999785423279D;
+        motionY *= 0.9599999785423279D;
+        motionZ *= 0.9599999785423279D;
+
+        if (onGround)
+        {
+            motionX *= 0.699999988079071D;
+            motionZ *= 0.699999988079071D;
+        }
+    }
+    
+    
+}

src/main/java/biomesoplenty/common/entities/EntityPixie.java

@@ -14,6 +14,8 @@ import java.util.List;
 import java.util.Random;
 
 import biomesoplenty.api.item.BOPItems;
+import biomesoplenty.api.particle.BOPParticleTypes;
+import biomesoplenty.core.BiomesOPlenty;
 import net.minecraft.entity.EntityFlying;
 import net.minecraft.entity.ai.EntityAIBase;
 import net.minecraft.entity.ai.EntityMoveHelper;
@@ -22,7 +24,6 @@ import net.minecraft.item.Item;
 import net.minecraft.util.AxisAlignedBB;
 import net.minecraft.util.BlockPos;
 import net.minecraft.util.EnumFacing;
-import net.minecraft.util.EnumParticleTypes;
 import net.minecraft.util.MathHelper;
 import net.minecraft.world.EnumSkyBlock;
 import net.minecraft.world.World;
@@ -60,8 +61,7 @@ public class EntityPixie extends EntityFlying implements IMob {
             {
                 if (this.rand.nextInt(2)==0)
                 {
-                    // TODO: add pixie particle BiomesOPlenty.proxy.spawnParticle("pixietrail", this.posX + (this.rand.nextDouble()) * (double)this.width, this.posY + this.rand.nextDouble() * (double)this.height - (double)this.yOffset, this.posZ + (this.rand.nextDouble()) * (double)this.width);
-                    this.worldObj.spawnParticle(EnumParticleTypes.PORTAL, this.posX + (this.rand.nextDouble() - 0.5D) * (double)this.width, this.posY + this.rand.nextDouble() * (double)this.height - 0.25D, this.posZ + (this.rand.nextDouble() - 0.5D) * (double)this.width, (this.rand.nextDouble() - 0.5D) * 2.0D, -this.rand.nextDouble(), (this.rand.nextDouble() - 0.5D) * 2.0D, new int[0]);
+                    BiomesOPlenty.proxy.spawnParticle(BOPParticleTypes.PIXIETRAIL, this.posX + (this.rand.nextDouble()) * (double)this.width, this.posY + this.rand.nextDouble() * (double)this.height - 0.25D, this.posZ + (this.rand.nextDouble()) * (double)this.width);
                 }
             }
         }

src/main/java/biomesoplenty/core/ClientProxy.java

@@ -12,15 +12,21 @@ import net.minecraft.block.Block;
 import net.minecraft.block.properties.IProperty;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiMainMenu;
+import net.minecraft.client.particle.EntityFX;
 import net.minecraft.client.renderer.block.statemap.IStateMapper;
 import net.minecraft.client.renderer.block.statemap.StateMap;
+import net.minecraft.client.renderer.texture.SimpleTexture;
+import net.minecraft.client.renderer.texture.TextureManager;
 import net.minecraft.client.resources.model.ModelBakery;
 import net.minecraft.client.resources.model.ModelResourceLocation;
 import net.minecraft.item.Item;
+import net.minecraft.util.MathHelper;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.model.ModelLoader;
 import net.minecraftforge.fml.client.registry.RenderingRegistry;
 import biomesoplenty.api.block.IBOPBlock;
+import biomesoplenty.api.particle.BOPParticleTypes;
+import biomesoplenty.client.particle.EntityPixieTrailFX;
 import biomesoplenty.common.config.MiscConfigurationHandler;
 import biomesoplenty.common.entities.EntityPixie;
 import biomesoplenty.common.entities.EntityWasp;
@@ -29,7 +35,6 @@ import biomesoplenty.common.entities.RenderWasp;
 import biomesoplenty.common.entities.projectiles.EntityDart;
 import biomesoplenty.common.entities.projectiles.RenderDart;
 
-
 public class ClientProxy extends CommonProxy
 {
     public static ResourceLocation[] bopTitlePanoramaPaths = new ResourceLocation[] {new ResourceLocation("biomesoplenty:textures/gui/title/background/panorama_0.png"), new ResourceLocation("biomesoplenty:textures/gui/title/background/panorama_1.png"), new ResourceLocation("biomesoplenty:textures/gui/title/background/panorama_2.png"), new ResourceLocation("biomesoplenty:textures/gui/title/background/panorama_3.png"), new ResourceLocation("biomesoplenty:textures/gui/title/background/panorama_4.png"), new ResourceLocation("biomesoplenty:textures/gui/title/background/panorama_5.png")};
@@ -38,6 +43,7 @@ public class ClientProxy extends CommonProxy
     public void registerRenderers()
     {
         Minecraft minecraft = Minecraft.getMinecraft();
+        TextureManager textureManager = minecraft.renderEngine;
         
         if (MiscConfigurationHandler.overrideTitlePanorama)
             GuiMainMenu.titlePanoramaPaths = bopTitlePanoramaPaths;
@@ -47,6 +53,11 @@ public class ClientProxy extends CommonProxy
         RenderingRegistry.registerEntityRenderingHandler(EntityWasp.class, new RenderWasp(minecraft.getRenderManager()));
         RenderingRegistry.registerEntityRenderingHandler(EntityPixie.class, new RenderPixie(minecraft.getRenderManager()));
         
+        
+        // load the texture for EntityPixieTrailFX
+        EntityPixieTrailFX.texture = new SimpleTexture(EntityPixieTrailFX.textureLocation);
+        textureManager.loadTexture(EntityPixieTrailFX.textureLocation, EntityPixieTrailFX.texture);
+
     }
     
     @Override
@@ -75,4 +86,19 @@ public class ClientProxy extends CommonProxy
             }
         }
     }
+    
+    @Override
+    public void spawnParticle(BOPParticleTypes type, double x, double y, double z)
+    {
+        Minecraft minecraft = Minecraft.getMinecraft();
+        EntityFX entityFx = null;
+        switch (type)
+        {
+            case PIXIETRAIL:
+                entityFx = new EntityPixieTrailFX(minecraft.theWorld, x, y, z, MathHelper.getRandomDoubleInRange(minecraft.theWorld.rand, -0.03, 0.03), -0.02D, MathHelper.getRandomDoubleInRange(minecraft.theWorld.rand, -0.03, 0.03));
+        }
+        
+        if (entityFx != null) {minecraft.effectRenderer.addEffect(entityFx);}
+    }
+
 }

src/main/java/biomesoplenty/core/CommonProxy.java

@@ -8,6 +8,7 @@
 
 package biomesoplenty.core;
 
+import biomesoplenty.api.particle.BOPParticleTypes;
 import net.minecraft.block.Block;
 import net.minecraft.item.Item;
 
@@ -15,7 +16,7 @@ import net.minecraft.item.Item;
 public class CommonProxy
 {
     public void registerRenderers() {}
-    
     public void registerItemVariantModel(Item item, String name, int metadata) {}
     public void registerNonRenderingProperties(Block block) {}
+    public void spawnParticle(BOPParticleTypes type, double x, double y, double z) {}
 }