001    package net.minecraft.src;
002    
003    import cpw.mods.fml.client.FMLTextureFX;
004    import cpw.mods.fml.common.Side;
005    import cpw.mods.fml.common.asm.SideOnly;
006    
007    @SideOnly(Side.CLIENT)
008    public class TextureFlamesFX extends FMLTextureFX
009    {
010        protected float[] field_76869_g = new float[320];
011        protected float[] field_76870_h = new float[320];
012        private int fireTileSize = 20;
013        private int fireGridSize = 320;
014    
015        public TextureFlamesFX(int par1)
016        {
017            super(Block.fire.blockIndexInTexture + par1 * 16);
018            setup();
019        }
020    
021        @Override
022        public void setup()
023        {
024            super.setup();
025            fireTileSize = tileSizeBase + (tileSizeBase >> 2);
026            fireGridSize = fireTileSize * tileSizeBase;
027            field_76869_g = new float[fireGridSize];
028            field_76870_h = new float[fireGridSize];
029        }
030    
031        public void onTick()
032        {
033            int var3;
034            float var4;
035            int var6;
036    
037            float fireFactor1 = 3.0F + (float)(tileSizeBase >> 4);
038            
039            float fireFactor2 = 1.01F + (0.8F / tileSizeBase);
040    
041            for (int var1 = 0; var1 < tileSizeBase; ++var1)
042            {
043                for (int var2 = 0; var2 < fireTileSize; ++var2)
044                {
045                    var3 = fireTileSize - (tileSizeBase >> 3);
046    
047                    var4 = this.field_76869_g[var1 + (var2 + 1) % fireTileSize * tileSizeBase] * (float)var3;
048    
049                    for (int var5 = var1 - 1; var5 <= var1 + 1; ++var5)
050                    {
051                        for (var6 = var2; var6 <= var2 + 1; ++var6)
052                        {
053                            if (var5 >= 0 && var6 >= 0 && var5 < tileSizeBase && var6 < fireTileSize)
054                            {
055                                var4 += this.field_76869_g[var5 + var6 * tileSizeBase];
056                            }
057    
058                            ++var3;
059                        }
060                    }
061    
062                    this.field_76870_h[var1 + var2 * tileSizeBase] = var4 / ((float)var3 * fireFactor2);
063    
064                    if (var2 >= fireTileSize - (tileSizeBase >> 4))
065                    {
066                        this.field_76870_h[var1 + var2 * tileSizeBase] = (float)(Math.random() * Math.random() * Math.random() * fireFactor1 + Math.random() * 0.1F + 0.2F);
067                    }
068                }
069            }
070    
071            float[] var13 = this.field_76870_h;
072            this.field_76870_h = this.field_76869_g;
073            this.field_76869_g = var13;
074    
075            for (var3 = 0; var3 < tileSizeSquare; ++var3)
076            {
077                var4 = this.field_76869_g[var3] * 1.8F;
078    
079                if (var4 > 1.0F)
080                {
081                    var4 = 1.0F;
082                }
083    
084                if (var4 < 0.0F)
085                {
086                    var4 = 0.0F;
087                }
088    
089                var6 = (int)(var4 * 155.0F + 100.0F);
090                int var7 = (int)(var4 * var4 * 255.0F);
091                int var8 = (int)(var4 * var4 * var4 * var4 * var4 * var4 * var4 * var4 * var4 * var4 * 255.0F);
092                short var9 = 255;
093    
094                if (var4 < 0.5F)
095                {
096                    var9 = 0;
097                }
098    
099                float var14 = (var4 - 0.5F) * 2.0F;
100    
101                if (this.anaglyphEnabled)
102                {
103                    int var10 = (var6 * 30 + var7 * 59 + var8 * 11) / 100;
104                    int var11 = (var6 * 30 + var7 * 70) / 100;
105                    int var12 = (var6 * 30 + var8 * 70) / 100;
106                    var6 = var10;
107                    var7 = var11;
108                    var8 = var12;
109                }
110    
111                this.imageData[var3 * 4 + 0] = (byte)var6;
112                this.imageData[var3 * 4 + 1] = (byte)var7;
113                this.imageData[var3 * 4 + 2] = (byte)var8;
114                this.imageData[var3 * 4 + 3] = (byte)var9;
115            }
116        }
117    }