EntityPortalFX.java

package net.minecraft.client.particle;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.world.World;

@SideOnly(Side.CLIENT)
public class EntityPortalFX extends EntityFX
{
    private float portalParticleScale;
    private double portalPosX;
    private double portalPosY;
    private double portalPosZ;
    private static final String __OBFID = "CL_00000921";

    public EntityPortalFX(World p_i1222_1_, double p_i1222_2_, double p_i1222_4_, double p_i1222_6_, double p_i1222_8_, double p_i1222_10_, double p_i1222_12_)
    {
        super(p_i1222_1_, p_i1222_2_, p_i1222_4_, p_i1222_6_, p_i1222_8_, p_i1222_10_, p_i1222_12_);
        this.motionX = p_i1222_8_;
        this.motionY = p_i1222_10_;
        this.motionZ = p_i1222_12_;
        this.portalPosX = this.posX = p_i1222_2_;
        this.portalPosY = this.posY = p_i1222_4_;
        this.portalPosZ = this.posZ = p_i1222_6_;
        float f = this.rand.nextFloat() * 0.6F + 0.4F;
        this.portalParticleScale = this.particleScale = this.rand.nextFloat() * 0.2F + 0.5F;
        this.particleRed = this.particleGreen = this.particleBlue = 1.0F * f;
        this.particleGreen *= 0.3F;
        this.particleRed *= 0.9F;
        this.particleMaxAge = (int)(Math.random() * 10.0D) + 40;
        this.noClip = true;
        this.setParticleTextureIndex((int)(Math.random() * 8.0D));
    }

    public void renderParticle(Tessellator p_70539_1_, 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 = ((float)this.particleAge + p_70539_2_) / (float)this.particleMaxAge;
        f6 = 1.0F - f6;
        f6 *= f6;
        f6 = 1.0F - f6;
        this.particleScale = this.portalParticleScale * f6;
        super.renderParticle(p_70539_1_, p_70539_2_, p_70539_3_, p_70539_4_, p_70539_5_, p_70539_6_, p_70539_7_);
    }

    public int getBrightnessForRender(float p_70070_1_)
    {
        int i = super.getBrightnessForRender(p_70070_1_);
        float f1 = (float)this.particleAge / (float)this.particleMaxAge;
        f1 *= f1;
        f1 *= f1;
        int j = i & 255;
        int k = i >> 16 & 255;
        k += (int)(f1 * 15.0F * 16.0F);

        if (k > 240)
        {
            k = 240;
        }

        return j | k << 16;
    }

    /**
     * Gets how bright this entity is.
     */
    public float getBrightness(float p_70013_1_)
    {
        float f1 = super.getBrightness(p_70013_1_);
        float f2 = (float)this.particleAge / (float)this.particleMaxAge;
        f2 = f2 * f2 * f2 * f2;
        return f1 * (1.0F - f2) + f2;
    }

    /**
     * Called to update the entity's position/logic.
     */
    public void onUpdate()
    {
        this.prevPosX = this.posX;
        this.prevPosY = this.posY;
        this.prevPosZ = this.posZ;
        float f = (float)this.particleAge / (float)this.particleMaxAge;
        float f1 = f;
        f = -f + f * f * 2.0F;
        f = 1.0F - f;
        this.posX = this.portalPosX + this.motionX * (double)f;
        this.posY = this.portalPosY + this.motionY * (double)f + (double)(1.0F - f1);
        this.posZ = this.portalPosZ + this.motionZ * (double)f;

        if (this.particleAge++ >= this.particleMaxAge)
        {
            this.setDead();
        }
    }
}