Initial Commit

codechicken/lib/render/CCRenderState.java

@@ -0,0 +1,140 @@
+package codechicken.lib.render;
+
+import net.minecraft.block.Block;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.IBlockAccess;
+
+public class CCRenderState
+{    
+    private static boolean useNormals;
+    private static boolean hasBrightness;
+    private static int brightness;
+    private static boolean useModelColours;
+    private static int colour;
+    private static boolean hasColour;
+    private static int alpha;
+    private static boolean alphaOverride;
+    
+    public static void useNormals(boolean b)
+    {
+        useNormals = b;
+    }
+    
+    public static boolean useNormals()
+    {
+        return useNormals;
+    }
+    
+    public static void useModelColours(boolean b)
+    {
+        useModelColours = b;
+    }
+
+    public static boolean useModelColours()
+    {
+        return useModelColours;
+    }
+    
+    public static void setAlpha(int a)
+    {
+        alpha = a;
+        alphaOverride = true;
+    }
+    
+    public static void clearAlphaOverride()
+    {
+        alphaOverride = false;
+    }
+    
+    public static void vertexColour(int c)
+    {
+        if(alphaOverride)
+            setColour(c&0xFFFFFF00|alpha);
+        else
+            setColour(c);
+    }
+
+    public static void vertexColour(int r, int g, int b, int a)
+    {
+        if(alphaOverride)
+            Tessellator.instance.setColorRGBA(r, g, b, alpha);
+        else
+            Tessellator.instance.setColorRGBA(r, g, b, a);
+    }
+    
+    public static void setBrightness(IBlockAccess world, int x, int y, int z)
+    {
+        Block block = Block.blocksList[world.getBlockId(x, y, z)];
+        setBrightness(block == null ? world.getLightBrightnessForSkyBlocks(x, y, z, 0) : block.getMixedBrightnessForBlock(world, x, y, z));
+        setColour(0xFFFFFFFF);
+    }
+
+    public static void setBrightness(int b)
+    {
+        hasBrightness = true;
+        Tessellator.instance.setBrightness(brightness = b);
+    }
+    
+    public static void setColourOpaque(int c)
+    {
+        setColour(c << 8 | 0xFF);
+    }
+    
+    //RGBA
+    public static void setColour(int c)
+    {
+        hasColour = true;
+        colour = c;
+        Tessellator.instance.setColorRGBA(colour >> 24 & 0xFF, colour >> 16 & 0xFF, colour >> 8 & 0xFF, colour & 0xFF);
+    }
+    
+    public static void changeTexture(String texture)
+    {
+        changeTexture(new ResourceLocation(texture));
+    }
+    
+    public static void changeTexture(ResourceLocation texture)
+    {
+        Minecraft.getMinecraft().renderEngine.func_110577_a(texture);
+    }
+
+    public static void apply()
+    {
+        if(hasBrightness)
+            Tessellator.instance.setBrightness(brightness);
+        if(hasColour)
+            Tessellator.instance.setColorRGBA(colour >> 24 & 0xFF, colour >> 16 & 0xFF, colour >> 8 & 0xFF, colour & 0xFF);
+    }
+
+    public static void reset()
+    {
+        hasBrightness = false;
+        useModelColours = false;
+        hasColour = false;
+        alphaOverride = false;
+    }
+
+    public static void startDrawing(int i)
+    {
+        Tessellator.instance.startDrawing(i);
+        apply();
+    }
+
+    public static void draw()
+    {
+        Tessellator.instance.draw();
+    }
+
+    public static void pullLightmap()
+    {
+        setBrightness((int)OpenGlHelper.lastBrightnessY << 16 | (int)OpenGlHelper.lastBrightnessX);
+    }
+
+    public static void applyBrightnessTexCoords()
+    {
+        OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, brightness&0xFFFF, brightness>>>16);
+    }
+}