001package net.minecraft.client.renderer.texturefx;
002
003import cpw.mods.fml.client.FMLTextureFX;
004import cpw.mods.fml.relauncher.Side;
005import cpw.mods.fml.relauncher.SideOnly;
006import net.minecraft.block.Block;
007
008@SideOnly(Side.CLIENT)
009public class TextureFlamesFX extends FMLTextureFX
010{
011    protected float[] field_76869_g = new float[320];
012    protected float[] field_76870_h = new float[320];
013    private int fireTileSize = 20;
014    private int fireGridSize = 320;
015
016    public TextureFlamesFX(int par1)
017    {
018        super(Block.fire.blockIndexInTexture + par1 * 16);
019        setup();
020    }
021
022    @Override
023    public void setup()
024    {
025        super.setup();
026        fireTileSize = tileSizeBase + (tileSizeBase >> 2);
027        fireGridSize = fireTileSize * tileSizeBase;
028        field_76869_g = new float[fireGridSize];
029        field_76870_h = new float[fireGridSize];
030    }
031
032    public void onTick()
033    {
034        int var3;
035        float var4;
036        int var6;
037        float fireFactor1 = 3.0F + (float)(tileSizeBase >> 4);
038        float fireFactor2 = 1.01F + (0.8F / tileSizeBase);
039
040        for (int var1 = 0; var1 < tileSizeBase; ++var1)
041        {
042            for (int var2 = 0; var2 < fireTileSize; ++var2)
043            {
044                var3 = fireTileSize - (tileSizeBase >> 3);
045                var4 = this.field_76869_g[var1 + (var2 + 1) % fireTileSize * tileSizeBase] * (float)var3;
046
047                for (int var5 = var1 - 1; var5 <= var1 + 1; ++var5)
048                {
049                    for (var6 = var2; var6 <= var2 + 1; ++var6)
050                    {
051                        if (var5 >= 0 && var6 >= 0 && var5 < tileSizeBase && var6 < fireTileSize)
052                        {
053                            var4 += this.field_76869_g[var5 + var6 * tileSizeBase];
054                        }
055
056                        ++var3;
057                    }
058                }
059
060                this.field_76870_h[var1 + var2 * tileSizeBase] = var4 / ((float)var3 * fireFactor2);
061
062                if (var2 >= fireTileSize - (tileSizeBase >> 4))
063                {
064                    this.field_76870_h[var1 + var2 * tileSizeBase] = (float)(Math.random() * Math.random() * Math.random() * fireFactor1 + Math.random() * 0.1F + 0.2F);
065                }
066            }
067        }
068
069        float[] var13 = this.field_76870_h;
070        this.field_76870_h = this.field_76869_g;
071        this.field_76869_g = var13;
072
073        for (var3 = 0; var3 < tileSizeSquare; ++var3)
074        {
075            var4 = this.field_76869_g[var3] * 1.8F;
076
077            if (var4 > 1.0F)
078            {
079                var4 = 1.0F;
080            }
081
082            if (var4 < 0.0F)
083            {
084                var4 = 0.0F;
085            }
086
087            var6 = (int)(var4 * 155.0F + 100.0F);
088            int var7 = (int)(var4 * var4 * 255.0F);
089            int var8 = (int)(var4 * var4 * var4 * var4 * var4 * var4 * var4 * var4 * var4 * var4 * 255.0F);
090            short var9 = 255;
091
092            if (var4 < 0.5F)
093            {
094                var9 = 0;
095            }
096
097            float var14 = (var4 - 0.5F) * 2.0F;
098
099            if (this.anaglyphEnabled)
100            {
101                int var10 = (var6 * 30 + var7 * 59 + var8 * 11) / 100;
102                int var11 = (var6 * 30 + var7 * 70) / 100;
103                int var12 = (var6 * 30 + var8 * 70) / 100;
104                var6 = var10;
105                var7 = var11;
106                var8 = var12;
107            }
108
109            this.imageData[var3 * 4 + 0] = (byte)var6;
110            this.imageData[var3 * 4 + 1] = (byte)var7;
111            this.imageData[var3 * 4 + 2] = (byte)var8;
112            this.imageData[var3 * 4 + 3] = (byte)var9;
113        }
114    }
115}