    001package net.minecraft.client.particle;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import net.minecraft.client.renderer.Tessellator;
    006import net.minecraft.world.World;
    007
    008@SideOnly(Side.CLIENT)
    009public class EntitySpellParticleFX extends EntityFX
    010{
    011    /** Base spell texture index */
    012    private int baseSpellTextureIndex = 128;
    013
    014    public EntitySpellParticleFX(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
    015    {
    016        super(par1World, par2, par4, par6, par8, par10, par12);
    017        this.motionY *= 0.20000000298023224D;
    018
    019        if (par8 == 0.0D && par12 == 0.0D)
    020        {
    021            this.motionX *= 0.10000000149011612D;
    022            this.motionZ *= 0.10000000149011612D;
    023        }
    024
    025        this.particleScale *= 0.75F;
    026        this.particleMaxAge = (int)(8.0D / (Math.random() * 0.8D + 0.2D));
    027        this.noClip = false;
    028    }
    029
    030    public void renderParticle(Tessellator par1Tessellator, float par2, float par3, float par4, float par5, float par6, float par7)
    031    {
    032        float var8 = ((float)this.particleAge + par2) / (float)this.particleMaxAge * 32.0F;
    033
    034        if (var8 < 0.0F)
    035        {
    036            var8 = 0.0F;
    037        }
    038
    039        if (var8 > 1.0F)
    040        {
    041            var8 = 1.0F;
    042        }
    043
    044        super.renderParticle(par1Tessellator, par2, par3, par4, par5, par6, par7);
    045    }
    046
    047    /**
    048     * Called to update the entity's position/logic.
    049     */
    050    public void onUpdate()
    051    {
    052        this.prevPosX = this.posX;
    053        this.prevPosY = this.posY;
    054        this.prevPosZ = this.posZ;
    055
    056        if (this.particleAge++ >= this.particleMaxAge)
    057        {
    058            this.setDead();
    059        }
    060
    061        this.setParticleTextureIndex(this.baseSpellTextureIndex + (7 - this.particleAge * 8 / this.particleMaxAge));
    062        this.motionY += 0.004D;
    063        this.moveEntity(this.motionX, this.motionY, this.motionZ);
    064
    065        if (this.posY == this.prevPosY)
    066        {
    067            this.motionX *= 1.1D;
    068            this.motionZ *= 1.1D;
    069        }
    070
    071        this.motionX *= 0.9599999785423279D;
    072        this.motionY *= 0.9599999785423279D;
    073        this.motionZ *= 0.9599999785423279D;
    074
    075        if (this.onGround)
    076        {
    077            this.motionX *= 0.699999988079071D;
    078            this.motionZ *= 0.699999988079071D;
    079        }
    080    }
    081
    082    /**
    083     * Sets the base spell texture index
    084     */
    085    public void setBaseSpellTextureIndex(int par1)
    086    {
    087        this.baseSpellTextureIndex = par1;
    088    }
    089}