001package net.minecraft.client.particle;
002
003import cpw.mods.fml.relauncher.Side;
004import cpw.mods.fml.relauncher.SideOnly;
005import net.minecraft.client.renderer.OpenGlHelper;
006import net.minecraft.client.renderer.Tessellator;
007import net.minecraft.client.renderer.entity.RenderManager;
008import net.minecraft.entity.Entity;
009import net.minecraft.util.MathHelper;
010import net.minecraft.world.World;
011import org.lwjgl.opengl.GL11;
012
013@SideOnly(Side.CLIENT)
014public class EntityPickupFX extends EntityFX
015{
016    private Entity entityToPickUp;
017    private Entity entityPickingUp;
018    private int age = 0;
019    private int maxAge = 0;
020
021    /** renamed from yOffset to fix shadowing Entity.yOffset */
022    private float yOffs;
023
024    public EntityPickupFX(World par1World, Entity par2Entity, Entity par3Entity, float par4)
025    {
026        super(par1World, par2Entity.posX, par2Entity.posY, par2Entity.posZ, par2Entity.motionX, par2Entity.motionY, par2Entity.motionZ);
027        this.entityToPickUp = par2Entity;
028        this.entityPickingUp = par3Entity;
029        this.maxAge = 3;
030        this.yOffs = par4;
031    }
032
033    public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
034    {
035        float f6 = ((float)this.age + par2) / (float)this.maxAge;
036        f6 *= f6;
037        double d0 = this.entityToPickUp.posX;
038        double d1 = this.entityToPickUp.posY;
039        double d2 = this.entityToPickUp.posZ;
040        double d3 = this.entityPickingUp.lastTickPosX + (this.entityPickingUp.posX - this.entityPickingUp.lastTickPosX) * (double)par2;
041        double d4 = this.entityPickingUp.lastTickPosY + (this.entityPickingUp.posY - this.entityPickingUp.lastTickPosY) * (double)par2 + (double)this.yOffs;
042        double d5 = this.entityPickingUp.lastTickPosZ + (this.entityPickingUp.posZ - this.entityPickingUp.lastTickPosZ) * (double)par2;
043        double d6 = d0 + (d3 - d0) * (double)f6;
044        double d7 = d1 + (d4 - d1) * (double)f6;
045        double d8 = d2 + (d5 - d2) * (double)f6;
046        int i = MathHelper.floor_double(d6);
047        int j = MathHelper.floor_double(d7 + (double)(this.yOffset / 2.0F));
048        int k = MathHelper.floor_double(d8);
049        int l = this.getBrightnessForRender(par2);
050        int i1 = l % 65536;
051        int j1 = l / 65536;
052        OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, (float)i1 / 1.0F, (float)j1 / 1.0F);
053        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
054        d6 -= interpPosX;
055        d7 -= interpPosY;
056        d8 -= interpPosZ;
057        RenderManager.instance.renderEntityWithPosYaw(this.entityToPickUp, (double)((float)d6), (double)((float)d7), (double)((float)d8), this.entityToPickUp.rotationYaw, par2);
058    }
059
060    /**
061     * Called to update the entity's position/logic.
062     */
063    public void onUpdate()
064    {
065        ++this.age;
066
067        if (this.age == this.maxAge)
068        {
069            this.setDead();
070        }
071    }
072
073    public int getFXLayer()
074    {
075        return 3;
076    }
077}