Adds a SkyProvider class that can handle the rendering of the sky

client/net/minecraftforge/client/SkyProvider.java

@@ -0,0 +1,12 @@
+package net.minecraftforge.client;
+
+import cpw.mods.fml.common.Side;
+import cpw.mods.fml.common.asm.SideOnly;
+import net.minecraft.client.Minecraft;
+import net.minecraft.src.WorldClient;
+
+public abstract class SkyProvider
+{
+    @SideOnly(Side.CLIENT)
+    public abstract void render(float partialTicks, WorldClient world, Minecraft mc);
+}

patches/common/net/minecraft/src/WorldProvider.java.patch

@@ -1,13 +1,23 @@
 --- ../src_base/common/net/minecraft/src/WorldProvider.java
 +++ ../src_work/common/net/minecraft/src/WorldProvider.java
-@@ -1,5 +1,6 @@
+@@ -1,5 +1,7 @@
  package net.minecraft.src;
  
++import net.minecraftforge.client.SkyProvider;
 +import net.minecraftforge.common.DimensionManager;
  import cpw.mods.fml.common.Side;
  import cpw.mods.fml.common.asm.SideOnly;
  
-@@ -185,7 +186,7 @@
+@@ -30,6 +32,8 @@
+ 
+     /** Array for sunrise/sunset colors (RGBA) */
+     private float[] colorsSunriseSunset = new float[4];
++
++    private SkyProvider skyProvider = null;
+ 
+     /**
+      * associate an existing world with a World provider, and setup its lightbrightness table
+@@ -185,7 +189,7 @@
  
      public static WorldProvider getProviderForDimension(int par0)
      {
@@ -16,7 +26,7 @@
      }
  
      @SideOnly(Side.CLIENT)
-@@ -251,4 +252,79 @@
+@@ -251,4 +255,92 @@
      }
  
      public abstract String func_80007_l();
@@ -95,4 +105,17 @@
 +        }
 +        return 1.0;
 +    }
++
++    @SideOnly(Side.CLIENT)
++    public SkyProvider getSkyProvider()
++    {
++        return this.skyProvider;
++    }
++
++    @SideOnly(Side.CLIENT)
++    public void setSkyProvider(SkyProvider skyProvider)
++    {
++        this.skyProvider = skyProvider;
++    }
++
  }

patches/minecraft/net/minecraft/src/RenderGlobal.java.patch

@@ -1,6 +1,30 @@
 --- ../src_base/minecraft/net/minecraft/src/RenderGlobal.java
 +++ ../src_work/minecraft/net/minecraft/src/RenderGlobal.java
-@@ -1787,6 +1787,7 @@
+@@ -9,7 +9,10 @@
+ import java.util.List;
+ import java.util.Map;
+ import java.util.Random;
++
+ import net.minecraft.client.Minecraft;
++import net.minecraftforge.client.SkyProvider;
++
+ import org.lwjgl.opengl.ARBOcclusionQuery;
+ import org.lwjgl.opengl.GL11;
+ 
+@@ -867,6 +870,12 @@
+      */
+     public void renderSky(float par1)
+     {
++        SkyProvider skyProvider = null;
++        if ((skyProvider = this.mc.theWorld.provider.getSkyProvider()) != null)
++        {
++            skyProvider.render(par1, this.theWorld, mc);
++            return;
++        }
+         if (this.mc.theWorld.provider.worldType == 1)
+         {
+             GL11.glDisable(GL11.GL_FOG);
+@@ -1787,6 +1796,7 @@
              double var17 = this.mc.renderViewEntity.posY - par4;
              double var19 = this.mc.renderViewEntity.posZ - par6;
              EntityFX var21 = null;
@@ -8,7 +32,7 @@
  
              if (par1Str.equals("hugeexplosion"))
              {
-@@ -1906,6 +1907,7 @@
+@@ -1906,6 +1916,7 @@
                      else if (par1Str.equals("snowballpoof"))
                      {
                          var21 = new EntityBreakingFX(this.theWorld, par2, par4, par6, Item.snowball);
@@ -16,7 +40,7 @@
                      }
                      else if (par1Str.equals("dripWater"))
                      {
-@@ -1922,6 +1924,7 @@
+@@ -1922,6 +1933,7 @@
                      else if (par1Str.equals("slime"))
                      {
                          var21 = new EntityBreakingFX(this.theWorld, par2, par4, par6, Item.slimeBall);
@@ -24,7 +48,7 @@
                      }
                      else if (par1Str.equals("heart"))
                      {
-@@ -1935,17 +1938,19 @@
+@@ -1935,17 +1947,19 @@
                          {
                              var24 = Integer.parseInt(par1Str.substring(par1Str.indexOf("_") + 1));
                              var21 = new EntityBreakingFX(this.theWorld, par2, par4, par6, par8, par10, par12, Item.itemsList[var24]);