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 TextureLavaFlowFX extends FMLTextureFX
009    {
010        protected float[] field_76871_g = new float[256];
011        protected float[] field_76874_h = new float[256];
012        protected float[] field_76875_i = new float[256];
013        protected float[] field_76872_j = new float[256];
014        int field_76873_k = 0;
015    
016        public TextureLavaFlowFX()
017        {
018            super(Block.lavaMoving.blockIndexInTexture + 1);
019            this.tileSize = 2;
020            setup();
021        }
022    
023        @Override    
024        public void setup()
025        {
026            super.setup();
027            field_76871_g = new float[tileSizeSquare];
028            field_76874_h = new float[tileSizeSquare];
029            field_76875_i = new float[tileSizeSquare];
030            field_76872_j = new float[tileSizeSquare];
031            field_76873_k = 0;
032        }
033    
034        public void onTick()
035        {
036            ++this.field_76873_k;
037            int var2;
038            float var3;
039            int var5;
040            int var6;
041            int var7;
042            int var8;
043            int var9;
044    
045            for (int var1 = 0; var1 < tileSizeBase; ++var1)
046            {
047                for (var2 = 0; var2 < tileSizeBase; ++var2)
048                {
049                    var3 = 0.0F;
050                    int var4 = (int)(MathHelper.sin((float)var2 * (float)Math.PI * 2.0F / 16.0F) * 1.2F);
051                    var5 = (int)(MathHelper.sin((float)var1 * (float)Math.PI * 2.0F / 16.0F) * 1.2F);
052    
053                    for (var6 = var1 - 1; var6 <= var1 + 1; ++var6)
054                    {
055                        for (var7 = var2 - 1; var7 <= var2 + 1; ++var7)
056                        {
057                            var8 = var6 + var4 & tileSizeMask;
058                            var9 = var7 + var5 & tileSizeMask;
059                            var3 += this.field_76871_g[var8 + var9 * tileSizeBase];
060                        }
061                    }
062    
063                    this.field_76874_h[var1 + var2 * tileSizeBase] = var3 / 10.0F + (this.field_76875_i[(var1 + 0 & tileSizeMask) + (var2 + 0 & tileSizeMask) * tileSizeBase] + this.field_76875_i[(var1 + 1 & tileSizeMask) + (var2 + 0 & tileSizeMask) * tileSizeBase] + this.field_76875_i[(var1 + 1 & tileSizeMask) + (var2 + 1 & tileSizeMask) * tileSizeBase] + this.field_76875_i[(var1 + 0 & tileSizeMask) + (var2 + 1 & tileSizeMask) * tileSizeBase]) / 4.0F * 0.8F;
064                    this.field_76875_i[var1 + var2 * tileSizeBase] += this.field_76872_j[var1 + var2 * tileSizeBase] * 0.01F;
065    
066                    if (this.field_76875_i[var1 + var2 * tileSizeBase] < 0.0F)
067                    {
068                        this.field_76875_i[var1 + var2 * tileSizeBase] = 0.0F;
069                    }
070    
071                    this.field_76872_j[var1 + var2 * tileSizeBase] -= 0.06F;
072    
073                    if (Math.random() < 0.005D)
074                    {
075                        this.field_76872_j[var1 + var2 * tileSizeBase] = 1.5F;
076                    }
077                }
078            }
079    
080            float[] var11 = this.field_76874_h;
081            this.field_76874_h = this.field_76871_g;
082            this.field_76871_g = var11;
083    
084            for (var2 = 0; var2 < tileSizeSquare; ++var2)
085            {
086                var3 = this.field_76871_g[(var2 - this.field_76873_k / 3 * tileSizeBase) & tileSizeSquareMask] * 2.0F;
087    
088                if (var3 > 1.0F)
089                {
090                    var3 = 1.0F;
091                }
092    
093                if (var3 < 0.0F)
094                {
095                    var3 = 0.0F;
096                }
097    
098                var5 = (int)(var3 * 100.0F + 155.0F);
099                var6 = (int)(var3 * var3 * 255.0F);
100                var7 = (int)(var3 * var3 * var3 * var3 * 128.0F);
101    
102                if (this.anaglyphEnabled)
103                {
104                    var8 = (var5 * 30 + var6 * 59 + var7 * 11) / 100;
105                    var9 = (var5 * 30 + var6 * 70) / 100;
106                    int var10 = (var5 * 30 + var7 * 70) / 100;
107                    var5 = var8;
108                    var6 = var9;
109                    var7 = var10;
110                }
111    
112                this.imageData[var2 * 4 + 0] = (byte)var5;
113                this.imageData[var2 * 4 + 1] = (byte)var6;
114                this.imageData[var2 * 4 + 2] = (byte)var7;
115                this.imageData[var2 * 4 + 3] = -1;
116            }
117        }
118    }