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 TextureWaterFlowFX extends FMLTextureFX
010{
011    protected float[] field_76880_g = new float[256];
012    protected float[] field_76883_h = new float[256];
013    protected float[] field_76884_i = new float[256];
014    protected float[] field_76881_j = new float[256];
015    private int tickCounter = 0;
016
017    public TextureWaterFlowFX()
018    {
019        super(Block.waterMoving.blockIndexInTexture + 1);
020        this.tileSize = 2;
021        setup();
022    }
023
024    @Override
025    public void setup()
026    {
027        super.setup();
028        field_76880_g = new float[tileSizeSquare];
029        field_76883_h = new float[tileSizeSquare];
030        field_76884_i = new float[tileSizeSquare];
031        field_76881_j = new float[tileSizeSquare];
032        tickCounter = 0;
033    }
034
035    public void onTick()
036    {
037        ++this.tickCounter;
038        int var1;
039        int var2;
040        float var3;
041        int var5;
042        int var6;
043
044        for (var1 = 0; var1 < tileSizeBase; ++var1)
045        {
046            for (var2 = 0; var2 < tileSizeBase; ++var2)
047            {
048                var3 = 0.0F;
049
050                for (int var4 = var2 - 2; var4 <= var2; ++var4)
051                {
052                    var5 = var1 & tileSizeMask;
053                    var6 = var4 & tileSizeMask;
054                    var3 += this.field_76880_g[var5 + var6 * tileSizeBase];
055                }
056
057                this.field_76883_h[var1 + var2 * tileSizeBase] = var3 / 3.2F + this.field_76884_i[var1 + var2 * tileSizeBase] * 0.8F;
058            }
059        }
060
061        for (var1 = 0; var1 < tileSizeBase; ++var1)
062        {
063            for (var2 = 0; var2 < tileSizeBase; ++var2)
064            {
065                this.field_76884_i[var1 + var2 * tileSizeBase] += this.field_76881_j[var1 + var2 * tileSizeBase] * 0.05F;
066
067                if (this.field_76884_i[var1 + var2 * tileSizeBase] < 0.0F)
068                {
069                    this.field_76884_i[var1 + var2 * tileSizeBase] = 0.0F;
070                }
071
072                this.field_76881_j[var1 + var2 * tileSizeBase] -= 0.3F;
073
074                if (Math.random() < 0.2D)
075                {
076                    this.field_76881_j[var1 + var2 * tileSizeBase] = 0.5F;
077                }
078            }
079        }
080
081        float[] var12 = this.field_76883_h;
082        this.field_76883_h = this.field_76880_g;
083        this.field_76880_g = var12;
084
085        for (var2 = 0; var2 < tileSizeSquare; ++var2)
086        {
087            var3 = this.field_76880_g[var2 - this.tickCounter * tileSizeBase & tileSizeSquareMask];
088
089            if (var3 > 1.0F)
090            {
091                var3 = 1.0F;
092            }
093
094            if (var3 < 0.0F)
095            {
096                var3 = 0.0F;
097            }
098
099            float var13 = var3 * var3;
100            var5 = (int)(32.0F + var13 * 32.0F);
101            var6 = (int)(50.0F + var13 * 64.0F);
102            int var7 = 255;
103            int var8 = (int)(146.0F + var13 * 50.0F);
104
105            if (this.anaglyphEnabled)
106            {
107                int var9 = (var5 * 30 + var6 * 59 + var7 * 11) / 100;
108                int var10 = (var5 * 30 + var6 * 70) / 100;
109                int var11 = (var5 * 30 + var7 * 70) / 100;
110                var5 = var9;
111                var6 = var10;
112                var7 = var11;
113            }
114
115            this.imageData[var2 * 4 + 0] = (byte)var5;
116            this.imageData[var2 * 4 + 1] = (byte)var6;
117            this.imageData[var2 * 4 + 2] = (byte)var7;
118            this.imageData[var2 * 4 + 3] = (byte)var8;
119        }
120    }
121}