Dynamic Lights

src/main/java/net/PeytonPlayz585/shadow/Config.java

@@ -418,4 +418,15 @@ public class Config {
         }
 	}
 	
+	public static boolean isDynamicLights() {
+        return Minecraft.getMinecraft().gameSettings.ofDynamicLights != 3;
+    }
+
+    public static boolean isDynamicLightsFast() {
+        return Minecraft.getMinecraft().gameSettings.ofDynamicLights == 1;
+    }
+    
+    public static boolean isDynamicHandLight() {
+        return !isDynamicLights() ? false : true;
+    }
 }

src/main/java/net/PeytonPlayz585/shadow/DynamicLight.java

@@ -0,0 +1,157 @@
+package net.PeytonPlayz585.shadow;
+
+import java.util.HashSet;
+import java.util.Set;
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.client.renderer.chunk.CompiledChunk;
+import net.minecraft.client.renderer.chunk.RenderChunk;
+import net.minecraft.entity.Entity;
+import net.minecraft.init.Blocks;
+import net.minecraft.util.BlockPos;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.MathHelper;
+import net.minecraft.world.World;
+
+public class DynamicLight {
+  private Entity entity = null;
+  private double offsetY = 0.0D;
+  private double lastPosX = -2.147483648E9D;
+  private double lastPosY = -2.147483648E9D;
+  private double lastPosZ = -2.147483648E9D;
+  private int lastLightLevel = 0;
+  private boolean underwater = false;
+  private long timeCheckMs = 0L;
+  private Set < BlockPos > setLitChunkPos = new HashSet();
+  private BlockPos.MutableBlockPos blockPosMutable = new BlockPos.MutableBlockPos();
+
+  public DynamicLight(Entity p_i36_1_) {
+    this.entity = p_i36_1_;
+    this.offsetY = (double) p_i36_1_.getEyeHeight();
+  }
+
+  public void update(RenderGlobal p_update_1_) {
+    if (Config.isDynamicLightsFast()) {
+      long i = System.currentTimeMillis();
+
+      if (i < this.timeCheckMs + 500L) {
+        return;
+      }
+
+      this.timeCheckMs = i;
+    }
+
+    double d6 = this.entity.posX - 0.5D;
+    double d0 = this.entity.posY - 0.5D + this.offsetY;
+    double d1 = this.entity.posZ - 0.5D;
+    int j = DynamicLights.getLightLevel(this.entity);
+    double d2 = d6 - this.lastPosX;
+    double d3 = d0 - this.lastPosY;
+    double d4 = d1 - this.lastPosZ;
+    double d5 = 0.1D;
+
+    if (Math.abs(d2) > d5 || Math.abs(d3) > d5 || Math.abs(d4) > d5 || this.lastLightLevel != j) {
+      this.lastPosX = d6;
+      this.lastPosY = d0;
+      this.lastPosZ = d1;
+      this.lastLightLevel = j;
+      this.underwater = false;
+      World world = p_update_1_.getWorld();
+
+      if (world != null) {
+        this.blockPosMutable.func_181079_c(MathHelper.floor_double(d6), MathHelper.floor_double(d0), MathHelper.floor_double(d1));
+        IBlockState iblockstate = world.getBlockState(this.blockPosMutable);
+        Block block = iblockstate.getBlock();
+        this.underwater = block == Blocks.water;
+      }
+
+      Set < BlockPos > set = new HashSet();
+
+      if (j > 0) {
+        EnumFacing enumfacing2 = (MathHelper.floor_double(d6) & 15) >= 8 ? EnumFacing.EAST : EnumFacing.WEST;
+        EnumFacing enumfacing = (MathHelper.floor_double(d0) & 15) >= 8 ? EnumFacing.UP : EnumFacing.DOWN;
+        EnumFacing enumfacing1 = (MathHelper.floor_double(d1) & 15) >= 8 ? EnumFacing.SOUTH : EnumFacing.NORTH;
+        BlockPos blockpos = new BlockPos(d6, d0, d1);
+        RenderChunk renderchunk = p_update_1_.viewFrustum.getRenderChunk(blockpos);
+        RenderChunk renderchunk1 = p_update_1_.viewFrustum.getRenderChunk(renderchunk, enumfacing2);
+        RenderChunk renderchunk2 = p_update_1_.viewFrustum.getRenderChunk(renderchunk, enumfacing1);
+        RenderChunk renderchunk3 = p_update_1_.viewFrustum.getRenderChunk(renderchunk1, enumfacing1);
+        RenderChunk renderchunk4 = p_update_1_.viewFrustum.getRenderChunk(renderchunk, enumfacing);
+        RenderChunk renderchunk5 = p_update_1_.viewFrustum.getRenderChunk(renderchunk4, enumfacing2);
+        RenderChunk renderchunk6 = p_update_1_.viewFrustum.getRenderChunk(renderchunk4, enumfacing1);
+        RenderChunk renderchunk7 = p_update_1_.viewFrustum.getRenderChunk(renderchunk5, enumfacing1);
+        this.updateChunkLight(renderchunk, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk1, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk2, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk3, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk4, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk5, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk6, this.setLitChunkPos, set);
+        this.updateChunkLight(renderchunk7, this.setLitChunkPos, set);
+      }
+
+      this.updateLitChunks(p_update_1_);
+      this.setLitChunkPos = set;
+    }
+  }
+
+  private void updateChunkLight(RenderChunk p_updateChunkLight_1_, Set < BlockPos > p_updateChunkLight_2_, Set < BlockPos > p_updateChunkLight_3_) {
+    if (p_updateChunkLight_1_ != null) {
+      CompiledChunk compiledchunk = p_updateChunkLight_1_.getCompiledChunk();
+
+      if (compiledchunk != null && !compiledchunk.isEmpty()) {
+        p_updateChunkLight_1_.setNeedsUpdate(true);
+      }
+
+      BlockPos blockpos = p_updateChunkLight_1_.getPosition();
+
+      if (p_updateChunkLight_2_ != null) {
+        p_updateChunkLight_2_.remove(blockpos);
+      }
+
+      if (p_updateChunkLight_3_ != null) {
+        p_updateChunkLight_3_.add(blockpos);
+      }
+    }
+  }
+
+  public void updateLitChunks(RenderGlobal p_updateLitChunks_1_) {
+    for (BlockPos blockpos: this.setLitChunkPos) {
+      RenderChunk renderchunk = p_updateLitChunks_1_.viewFrustum.getRenderChunk(blockpos);
+      this.updateChunkLight(renderchunk, (Set < BlockPos > ) null, (Set < BlockPos > ) null);
+    }
+  }
+
+  public Entity getEntity() {
+    return this.entity;
+  }
+
+  public double getLastPosX() {
+    return this.lastPosX;
+  }
+
+  public double getLastPosY() {
+    return this.lastPosY;
+  }
+
+  public double getLastPosZ() {
+    return this.lastPosZ;
+  }
+
+  public int getLastLightLevel() {
+    return this.lastLightLevel;
+  }
+
+  public boolean isUnderwater() {
+    return this.underwater;
+  }
+
+  public double getOffsetY() {
+    return this.offsetY;
+  }
+
+  public String toString() {
+    return "Entity: " + this.entity + ", offsetY: " + this.offsetY;
+  }
+}

src/main/java/net/PeytonPlayz585/shadow/DynamicLights.java

@@ -0,0 +1,262 @@
+package net.PeytonPlayz585.shadow;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import net.PeytonPlayz585.shadow.math.IntegerCache;
+import net.minecraft.block.Block;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.entity.item.EntityItem;
+import net.minecraft.entity.item.EntityTNTPrimed;
+import net.minecraft.entity.monster.EntityBlaze;
+import net.minecraft.entity.monster.EntityCreeper;
+import net.minecraft.entity.monster.EntityMagmaCube;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.projectile.EntityFireball;
+import net.minecraft.init.Blocks;
+import net.minecraft.init.Items;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemBlock;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.BlockPos;
+import net.minecraft.world.World;
+
+public class DynamicLights {
+  private static Map < Integer, DynamicLight > mapDynamicLights = new HashMap();
+  private static long timeUpdateMs = 0L;
+  private static final double MAX_DIST = 7.5D;
+  private static final double MAX_DIST_SQ = 56.25D;
+  private static final int LIGHT_LEVEL_MAX = 15;
+  private static final int LIGHT_LEVEL_FIRE = 15;
+  private static final int LIGHT_LEVEL_BLAZE = 10;
+  private static final int LIGHT_LEVEL_MAGMA_CUBE = 8;
+  private static final int LIGHT_LEVEL_MAGMA_CUBE_CORE = 13;
+  private static final int LIGHT_LEVEL_GLOWSTONE_DUST = 8;
+  private static final int LIGHT_LEVEL_PRISMARINE_CRYSTALS = 8;
+
+  public static void entityAdded(Entity p_entityAdded_0_, RenderGlobal p_entityAdded_1_) {}
+
+  public static void entityRemoved(Entity p_entityRemoved_0_, RenderGlobal p_entityRemoved_1_) {
+    synchronized(mapDynamicLights) {
+      DynamicLight dynamiclight = (DynamicLight) mapDynamicLights.remove(IntegerCache.valueOf(p_entityRemoved_0_.getEntityId()));
+
+      if (dynamiclight != null) {
+        dynamiclight.updateLitChunks(p_entityRemoved_1_);
+      }
+    }
+  }
+
+  public static void update(RenderGlobal p_update_0_) {
+    long i = System.currentTimeMillis();
+
+    if (i >= timeUpdateMs + 50L) {
+      timeUpdateMs = i;
+
+      synchronized(mapDynamicLights) {
+        updateMapDynamicLights(p_update_0_);
+
+        if (mapDynamicLights.size() > 0) {
+          for (DynamicLight dynamiclight: mapDynamicLights.values()) {
+            dynamiclight.update(p_update_0_);
+          }
+        }
+      }
+    }
+  }
+
+  private static void updateMapDynamicLights(RenderGlobal p_updateMapDynamicLights_0_) {
+    World world = p_updateMapDynamicLights_0_.getWorld();
+
+    if (world != null) {
+      for (Entity entity: world.getLoadedEntityList()) {
+        int i = getLightLevel(entity);
+
+        if (i > 0) {
+          Integer integer = IntegerCache.valueOf(entity.getEntityId());
+          DynamicLight dynamiclight = (DynamicLight) mapDynamicLights.get(integer);
+
+          if (dynamiclight == null) {
+            dynamiclight = new DynamicLight(entity);
+            mapDynamicLights.put(integer, dynamiclight);
+          }
+        } else {
+          Integer integer1 = IntegerCache.valueOf(entity.getEntityId());
+          DynamicLight dynamiclight1 = (DynamicLight) mapDynamicLights.remove(integer1);
+
+          if (dynamiclight1 != null) {
+            dynamiclight1.updateLitChunks(p_updateMapDynamicLights_0_);
+          }
+        }
+      }
+    }
+  }
+
+  public static int getCombinedLight(BlockPos p_getCombinedLight_0_, int p_getCombinedLight_1_) {
+    double d0 = getLightLevel(p_getCombinedLight_0_);
+    p_getCombinedLight_1_ = getCombinedLight(d0, p_getCombinedLight_1_);
+    return p_getCombinedLight_1_;
+  }
+
+  public static int getCombinedLight(Entity p_getCombinedLight_0_, int p_getCombinedLight_1_) {
+    double d0 = (double) getLightLevel(p_getCombinedLight_0_);
+    p_getCombinedLight_1_ = getCombinedLight(d0, p_getCombinedLight_1_);
+    return p_getCombinedLight_1_;
+  }
+
+  public static int getCombinedLight(double p_getCombinedLight_0_, int p_getCombinedLight_2_) {
+    if (p_getCombinedLight_0_ > 0.0D) {
+      int i = (int)(p_getCombinedLight_0_ * 16.0D);
+      int j = p_getCombinedLight_2_ & 255;
+
+      if (i > j) {
+        p_getCombinedLight_2_ = p_getCombinedLight_2_ & -256;
+        p_getCombinedLight_2_ = p_getCombinedLight_2_ | i;
+      }
+    }
+
+    return p_getCombinedLight_2_;
+  }
+
+  public static double getLightLevel(BlockPos p_getLightLevel_0_) {
+    double d0 = 0.0D;
+
+    synchronized(mapDynamicLights) {
+      for (DynamicLight dynamiclight: mapDynamicLights.values()) {
+        int i = dynamiclight.getLastLightLevel();
+
+        if (i > 0) {
+          double d1 = dynamiclight.getLastPosX();
+          double d2 = dynamiclight.getLastPosY();
+          double d3 = dynamiclight.getLastPosZ();
+          double d4 = (double) p_getLightLevel_0_.getX() - d1;
+          double d5 = (double) p_getLightLevel_0_.getY() - d2;
+          double d6 = (double) p_getLightLevel_0_.getZ() - d3;
+          double d7 = d4 * d4 + d5 * d5 + d6 * d6;
+
+          if (dynamiclight.isUnderwater() && !Config.isClearWater()) {
+            i = Config.limit(i - 2, 0, 15);
+            d7 *= 2.0D;
+          }
+
+          if (d7 <= 56.25D) {
+            double d8 = Math.sqrt(d7);
+            double d9 = 1.0D - d8 / 7.5D;
+            double d10 = d9 * (double) i;
+
+            if (d10 > d0) {
+              d0 = d10;
+            }
+          }
+        }
+      }
+    }
+
+    double d11 = Config.limit(d0, 0.0D, 15.0D);
+    return d11;
+  }
+
+  public static int getLightLevel(ItemStack p_getLightLevel_0_) {
+    if (p_getLightLevel_0_ == null) {
+      return 0;
+    } else {
+      Item item = p_getLightLevel_0_.getItem();
+
+      if (item instanceof ItemBlock) {
+        ItemBlock itemblock = (ItemBlock) item;
+        Block block = itemblock.getBlock();
+
+        if (block != null) {
+          return block.getLightValue();
+        }
+      }
+
+      return item == Items.lava_bucket ? Blocks.lava.getLightValue() : (item != Items.blaze_rod && item != Items.blaze_powder ? (item == Items.glowstone_dust ? 8 : (item == Items.prismarine_crystals ? 8 : (item == Items.magma_cream ? 8 : (item == Items.nether_star ? Blocks.beacon.getLightValue() / 2 : 0)))) : 10);
+    }
+  }
+
+  public static int getLightLevel(Entity p_getLightLevel_0_) {
+    if (p_getLightLevel_0_ == Minecraft.getMinecraft().getRenderViewEntity() && !Config.isDynamicHandLight()) {
+      return 0;
+    } else {
+      if (p_getLightLevel_0_ instanceof EntityPlayer) {
+        EntityPlayer entityplayer = (EntityPlayer) p_getLightLevel_0_;
+
+        if (entityplayer.isSpectator()) {
+          return 0;
+        }
+      }
+
+      if (p_getLightLevel_0_.isBurning()) {
+        return 15;
+      } else if (p_getLightLevel_0_ instanceof EntityFireball) {
+        return 15;
+      } else if (p_getLightLevel_0_ instanceof EntityTNTPrimed) {
+        return 15;
+      } else if (p_getLightLevel_0_ instanceof EntityBlaze) {
+        EntityBlaze entityblaze = (EntityBlaze) p_getLightLevel_0_;
+        return entityblaze.func_70845_n() ? 15 : 10;
+      } else if (p_getLightLevel_0_ instanceof EntityMagmaCube) {
+        EntityMagmaCube entitymagmacube = (EntityMagmaCube) p_getLightLevel_0_;
+        return (double) entitymagmacube.squishFactor > 0.6D ? 13 : 8;
+      } else {
+        if (p_getLightLevel_0_ instanceof EntityCreeper) {
+          EntityCreeper entitycreeper = (EntityCreeper) p_getLightLevel_0_;
+
+          if ((double) entitycreeper.getCreeperFlashIntensity(0.0F) > 0.001D) {
+            return 15;
+          }
+        }
+
+        if (p_getLightLevel_0_ instanceof EntityLivingBase) {
+          EntityLivingBase entitylivingbase = (EntityLivingBase) p_getLightLevel_0_;
+          ItemStack itemstack2 = entitylivingbase.getHeldItem();
+          int i = getLightLevel(itemstack2);
+          ItemStack itemstack1 = entitylivingbase.getEquipmentInSlot(4);
+          int j = getLightLevel(itemstack1);
+          return Math.max(i, j);
+        } else if (p_getLightLevel_0_ instanceof EntityItem) {
+          EntityItem entityitem = (EntityItem) p_getLightLevel_0_;
+          ItemStack itemstack = getItemStack(entityitem);
+          return getLightLevel(itemstack);
+        } else {
+          return 0;
+        }
+      }
+    }
+  }
+
+  public static void removeLights(RenderGlobal p_removeLights_0_) {
+    synchronized(mapDynamicLights) {
+      Collection < DynamicLight > collection = mapDynamicLights.values();
+      Iterator iterator = collection.iterator();
+
+      while (iterator.hasNext()) {
+        DynamicLight dynamiclight = (DynamicLight) iterator.next();
+        iterator.remove();
+        dynamiclight.updateLitChunks(p_removeLights_0_);
+      }
+    }
+  }
+
+  public static void clear() {
+    synchronized(mapDynamicLights) {
+      mapDynamicLights.clear();
+    }
+  }
+
+  public static int getCount() {
+    synchronized(mapDynamicLights) {
+      return mapDynamicLights.size();
+    }
+  }
+
+  public static ItemStack getItemStack(EntityItem p_getItemStack_0_) {
+    ItemStack itemstack = p_getItemStack_0_.getDataWatcher().getWatchableObjectItemStack(10);
+    return itemstack;
+  }
+}

src/main/java/net/PeytonPlayz585/shadow/gui/GuiQuality.java

@@ -10,7 +10,7 @@ public class GuiQuality extends GuiScreen {
     protected String title;
     private GameSettings settings;
     //private static GameSettings.Options[] enumOptions = new GameSettings.Options[] {GameSettings.Options.MIPMAP_LEVELS, GameSettings.Options.MIPMAP_TYPE, GameSettings.Options.AF_LEVEL, GameSettings.Options.AA_LEVEL, GameSettings.Options.CLEAR_WATER, GameSettings.Options.RANDOM_MOBS, GameSettings.Options.BETTER_GRASS, GameSettings.Options.BETTER_SNOW, GameSettings.Options.CUSTOM_FONTS, GameSettings.Options.CUSTOM_COLORS, GameSettings.Options.SWAMP_COLORS, GameSettings.Options.SMOOTH_BIOMES, GameSettings.Options.CONNECTED_TEXTURES, GameSettings.Options.NATURAL_TEXTURES, GameSettings.Options.CUSTOM_SKY, GameSettings.Options.CUSTOM_ITEMS, GameSettings.Options.DYNAMIC_LIGHTS};
-    private static GameSettings.Options[] enumOptions = new GameSettings.Options[] {GameSettings.Options.CLEAR_WATER, GameSettings.Options.BETTER_GRASS, GameSettings.Options.CUSTOM_SKY};
+    private static GameSettings.Options[] enumOptions = new GameSettings.Options[] {GameSettings.Options.CLEAR_WATER, GameSettings.Options.BETTER_GRASS, GameSettings.Options.CUSTOM_SKY, GameSettings.Options.DYNAMIC_LIGHTS};
 
     public GuiQuality(GuiScreen p_i53_1_) {
         this.prevScreen = p_i53_1_;

src/main/java/net/PeytonPlayz585/shadow/math/IntegerCache.java

@@ -0,0 +1,20 @@
+package net.PeytonPlayz585.shadow.math;
+
+public class IntegerCache {
+    private static final int CACHE_SIZE = 4096;
+    private static final Integer[] cache = makeCache(4096);
+
+    private static Integer[] makeCache(int p_makeCache_0_) {
+        Integer[] ainteger = new Integer[p_makeCache_0_];
+
+        for (int i = 0; i < p_makeCache_0_; ++i) {
+            ainteger[i] = new Integer(i);
+        }
+
+        return ainteger;
+    }
+
+    public static Integer valueOf(int p_valueOf_0_) {
+        return p_valueOf_0_ >= 0 && p_valueOf_0_ < 4096 ? cache[p_valueOf_0_] : new Integer(p_valueOf_0_);
+    }
+}

src/main/java/net/minecraft/client/multiplayer/WorldClient.java

@@ -1,5 +1,7 @@
 package net.minecraft.client.multiplayer;
 
+import net.PeytonPlayz585.shadow.Config;
+import net.PeytonPlayz585.shadow.DynamicLights;
 import net.PeytonPlayz585.shadow.other.PlayerControllerOF;
 import net.lax1dude.eaglercraft.v1_8.EaglercraftRandom;
 import java.util.Set;
@@ -435,6 +437,17 @@ public class WorldClient extends World {
 		super.setWorldTime(i);
 	}
 	
+	@Override
+	public int getCombinedLight(BlockPos pos, int lightValue) {
+        int i = super.getCombinedLight(pos, lightValue);
+
+        if (Config.isDynamicLights()) {
+            i = DynamicLights.getCombinedLight(pos, i);
+        }
+
+        return i;
+    }
+	
 	/**
      * Sets the block state at a given location. Flag 1 will cause a block update. Flag 2 will send the change to
      * clients (you almost always want this). Flag 4 prevents the block from being re-rendered, if this is a client

src/main/java/net/minecraft/client/renderer/ItemRenderer.java

@@ -2,6 +2,8 @@ package net.minecraft.client.renderer;
 
 import static net.lax1dude.eaglercraft.v1_8.opengl.RealOpenGLEnums.*;
 
+import net.PeytonPlayz585.shadow.Config;
+import net.PeytonPlayz585.shadow.DynamicLights;
 import net.lax1dude.eaglercraft.v1_8.minecraft.EaglerTextureAtlasSprite;
 import net.lax1dude.eaglercraft.v1_8.opengl.EaglercraftGPU;
 import net.lax1dude.eaglercraft.v1_8.opengl.GlStateManager;
@@ -108,9 +110,13 @@ public class ItemRenderer {
 	}
 
 	private void func_178109_a(AbstractClientPlayer clientPlayer) {
-		int i = this.mc.theWorld.getCombinedLight(new BlockPos(clientPlayer.posX,
+		int i = this.mc.theWorld.getCombinedLight(new BlockPos(clientPlayer.posX, clientPlayer.posY + (double)clientPlayer.getEyeHeight(), clientPlayer.posZ), 0);
-				clientPlayer.posY + (double) clientPlayer.getEyeHeight(), clientPlayer.posZ), 0);
+
-		float f = (float) (i & '\uffff');
+        if (Config.isDynamicLights()) {
+            i = DynamicLights.getCombinedLight(this.mc.getRenderViewEntity(), i);
+        }
+
+        float f = (float)(i & 65535);
         float f1 = (float)(i >> 16);
         OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, f, f1);
 	}

src/main/java/net/minecraft/client/renderer/RegionRenderCache.java

@@ -2,6 +2,8 @@ package net.minecraft.client.renderer;
 
 import java.util.Arrays;
 
+import net.PeytonPlayz585.shadow.Config;
+import net.PeytonPlayz585.shadow.DynamicLights;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.init.Blocks;
 import net.minecraft.tileentity.TileEntity;
@@ -50,15 +52,21 @@ public class RegionRenderCache extends ChunkCache {
 		return this.chunkArray[i][j].getTileEntity(blockpos, Chunk.EnumCreateEntityType.QUEUED);
 	}
 
-	public int getCombinedLight(BlockPos blockpos, int i) {
+	public int getCombinedLight(BlockPos pos, int lightValue) {
-		int j = this.getPositionIndex(blockpos);
+		int i = this.getPositionIndex(pos);
-		int k = this.combinedLights[j];
+        int j = this.combinedLights[i];
-		if (k == -1) {
+
-			k = super.getCombinedLight(blockpos, i);
+        if (j == -1) {
-			this.combinedLights[j] = k;
+            j = super.getCombinedLight(pos, lightValue);
+
+            if (Config.isDynamicLights() && !this.getBlockState(pos).getBlock().isOpaqueCube()) {
+                j = DynamicLights.getCombinedLight(pos, j);
             }
 
-		return k;
+            this.combinedLights[i] = j;
+        }
+
+        return j;
 	}
 
 	public IBlockState getBlockState(BlockPos blockpos) {

src/main/java/net/minecraft/client/renderer/RenderGlobal.java

@@ -12,6 +12,7 @@ import java.util.Map;
 
 import net.PeytonPlayz585.shadow.Config;
 import net.PeytonPlayz585.shadow.CustomSky;
+import net.PeytonPlayz585.shadow.DynamicLights;
 import net.PeytonPlayz585.shadow.opengl.OpenGLManager;
 import net.PeytonPlayz585.shadow.other.CloudRenderer;
 import net.lax1dude.eaglercraft.v1_8.EaglercraftRandom;
@@ -138,7 +139,7 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 	 */
 	private List<RenderGlobal.ContainerLocalRenderInformation> renderInfos = Lists.newArrayListWithCapacity(69696);
 	private final Set<TileEntity> field_181024_n = Sets.newHashSet();
-	private ViewFrustum viewFrustum;
+	public ViewFrustum viewFrustum;
 	/**+
 	 * The star GL Call list
 	 */
@@ -379,6 +380,11 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 		this.frustumUpdatePosChunkZ = Integer.MIN_VALUE;
 		this.renderManager.set(worldClientIn);
 		this.theWorld = worldClientIn;
+		
+		if (Config.isDynamicLights()) {
+            DynamicLights.clear();
+        }
+		
 		if (worldClientIn != null) {
 			worldClientIn.addWorldAccess(this);
 			this.loadRenderers();
@@ -402,6 +408,11 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 			Blocks.leaves.setGraphicsLevel(mc.gameSettings.shaders || mc.gameSettings.fancyGraphics);
 			Blocks.leaves2.setGraphicsLevel(mc.gameSettings.shaders || mc.gameSettings.fancyGraphics);
 			BlockModelRenderer.updateAoLightValue();
+			
+			if (Config.isDynamicLights()) {
+                DynamicLights.clear();
+            }
+			
 			this.renderDistanceChunks = this.mc.gameSettings.renderDistanceChunks;
 			this.renderDistance = this.renderDistanceChunks * 16;
             this.renderDistanceSq = this.renderDistance * this.renderDistance;
@@ -848,6 +859,10 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 			this.viewFrustum.updateChunkPositions(viewEntity.posX, viewEntity.posZ);
 		}
 		
+		if (Config.isDynamicLights()) {
+            DynamicLights.update(this);
+        }
+
 		this.theWorld.theProfiler.endStartSection("renderlistcamera");
 		double d3 = viewEntity.lastTickPosX + (viewEntity.posX - viewEntity.lastTickPosX) * partialTicks;
 		double d4 = viewEntity.lastTickPosY + (viewEntity.posY - viewEntity.lastTickPosY) * partialTicks;
@@ -2235,6 +2250,11 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 	 * tracker.
 	 */
 	public void onEntityAdded(Entity var1) {
+		
+		if (Config.isDynamicLights()) {
+            DynamicLights.entityAdded(var1, this);
+        }
+		
 	}
 
 	/**+
@@ -2244,6 +2264,11 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 	 * entity tracker.
 	 */
 	public void onEntityRemoved(Entity var1) {
+		
+		if (Config.isDynamicLights()) {
+            DynamicLights.entityRemoved(var1, this);
+        }
+		
 	}
 
 	/**+
@@ -2532,4 +2557,8 @@ public class RenderGlobal implements IWorldAccess, IResourceManagerReloadListene
 		return "" + Minecraft.getDebugFPS() + "fps | C: " + j + "/" + i + ", E: " + this.countEntitiesRendered + "+" + k
 				+ ", " + renderDispatcher.getDebugInfo();
 	}
+	
+	public WorldClient getWorld() {
+        return this.theWorld;
+    }
 }

src/main/java/net/minecraft/client/renderer/ViewFrustum.java

@@ -3,6 +3,7 @@ package net.minecraft.client.renderer;
 import net.minecraft.client.renderer.chunk.IRenderChunkFactory;
 import net.minecraft.client.renderer.chunk.RenderChunk;
 import net.minecraft.util.BlockPos;
+import net.minecraft.util.EnumFacing;
 import net.minecraft.util.MathHelper;
 import net.minecraft.world.World;
 
@@ -141,7 +142,7 @@ public class ViewFrustum {
 
 	}
 
-	protected RenderChunk getRenderChunk(BlockPos pos) {
+	public RenderChunk getRenderChunk(BlockPos pos) {
 		int i = MathHelper.bucketInt(pos.getX(), 16);
 		int j = MathHelper.bucketInt(pos.getY(), 16);
 		int k = MathHelper.bucketInt(pos.getZ(), 16);
@@ -162,4 +163,13 @@ public class ViewFrustum {
 			return null;
 		}
 	}
+	
+	public RenderChunk getRenderChunk(RenderChunk p_getRenderChunk_1_, EnumFacing p_getRenderChunk_2_) {
+        if (p_getRenderChunk_1_ == null) {
+            return null;
+        } else {
+            BlockPos blockpos = p_getRenderChunk_1_.func_181701_a(p_getRenderChunk_2_);
+            return getRenderChunk(blockpos);
+        }
+    }
 }

src/main/java/net/minecraft/client/settings/GameSettings.java

@@ -18,6 +18,7 @@ import com.google.common.collect.Sets;
 
 import net.PeytonPlayz585.shadow.Config;
 import net.PeytonPlayz585.shadow.CustomSky;
+import net.PeytonPlayz585.shadow.DynamicLights;
 import net.PeytonPlayz585.shadow.shaders.Shaders;
 import net.lax1dude.eaglercraft.v1_8.ArrayUtils;
 import net.lax1dude.eaglercraft.v1_8.EagRuntime;
@@ -195,6 +196,7 @@ public class GameSettings {
 	public boolean ofCustomSky = true;
 	public boolean ofClearWater = false;
 	public int ofBetterGrass = 3;
+	public int ofDynamicLights = 3;
 	
 	//Detail Settings
 	/** Clouds flag */
@@ -230,6 +232,11 @@ public class GameSettings {
     //Shaders
     public int profile = 1;
     
+    
+    //Other...
+    private static final int[] OF_DYNAMIC_LIGHTS = new int[] {3, 1, 2};
+    private static final String[] KEYS_DYNAMIC_LIGHTS = new String[] {"options.off", "options.graphics.fast", "options.graphics.fancy"};
+
 	public GameSettings(Minecraft mcIn) {
 		this.keyBindings = (KeyBinding[]) ArrayUtils.addAll(new KeyBinding[] { this.keyBindAttack, this.keyBindUseItem,
 				this.keyBindForward, this.keyBindLeft, this.keyBindBack, this.keyBindRight, this.keyBindJump,
@@ -650,6 +657,11 @@ public class GameSettings {
             this.mc.renderGlobal.resetClouds();
         }
 		
+		if (parOptions == GameSettings.Options.DYNAMIC_LIGHTS) {
+            this.ofDynamicLights = nextValue(this.ofDynamicLights, OF_DYNAMIC_LIGHTS);
+            DynamicLights.removeLights(this.mc.renderGlobal);
+        }
+
 		this.saveOptions();
 	}
 
@@ -910,6 +922,9 @@ public class GameSettings {
                 default:
                     return s + "Default";
             }
+        } else if (parOptions == GameSettings.Options.DYNAMIC_LIGHTS) {
+            int k = indexOf(this.ofDynamicLights, OF_DYNAMIC_LIGHTS);
+            return s + getTranslation(KEYS_DYNAMIC_LIGHTS, k);
         } else {
 			return s;
 		}
@@ -1323,6 +1338,11 @@ public class GameSettings {
                         this.ofCloudsHeight = Config.limit(this.ofCloudsHeight, 0.0F, 1.0F);
                     }
 					
+					if (astring[0].equals("ofDynamicLights") && astring.length >= 2) {
+                        this.ofDynamicLights = Integer.valueOf(astring[1]).intValue();
+                        this.ofDynamicLights = limit(this.ofDynamicLights, OF_DYNAMIC_LIGHTS);
+                    }
+
 					Keyboard.setFunctionKeyModifier(keyBindFunction.getKeyCode());
 
 					for (SoundCategory soundcategory : SoundCategory.values()) {
@@ -1459,6 +1479,7 @@ public class GameSettings {
 			printwriter.println("ofChunkUpdates:" + this.ofChunkUpdates);
 			printwriter.println("ofClouds:" + this.ofClouds);
 			printwriter.println("ofCloudsHeight:" + this.ofCloudsHeight);
+			printwriter.println("ofDynamicLights:" + this.ofDynamicLights);
 
 			for (KeyBinding keybinding : this.keyBindings) {
 				printwriter.println("key_" + keybinding.getKeyDescription() + ":" + keybinding.getKeyCode());
@@ -1625,7 +1646,8 @@ public class GameSettings {
 		SMOOTH_FPS("Smooth FPS", false, false),
 		CHUNK_UPDATES("Chunk Updates", false, false),
 		CLOUDS("Clouds", false, false),
-		CLOUD_HEIGHT("Cloud Height", true, false);
+		CLOUD_HEIGHT("Cloud Height", true, false),
+		DYNAMIC_LIGHTS("Dynamic Lights", false, false);
 
 		private final boolean enumFloat;
 		private final boolean enumBoolean;
@@ -1706,6 +1728,37 @@ public class GameSettings {
 		}
 	}
 	
+	private static int limit(int p_limit_0_, int[] p_limit_1_) {
+        int i = indexOf(p_limit_0_, p_limit_1_);
+        return i < 0 ? p_limit_1_[0] : p_limit_0_;
+    }
+
+    private static int indexOf(int p_indexOf_0_, int[] p_indexOf_1_) {
+        for (int i = 0; i < p_indexOf_1_.length; ++i) {
+            if (p_indexOf_1_[i] == p_indexOf_0_) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    private static int nextValue(int p_nextValue_0_, int[] p_nextValue_1_) {
+        int i = indexOf(p_nextValue_0_, p_nextValue_1_);
+
+        if (i < 0) {
+            return p_nextValue_1_[0];
+        } else {
+            ++i;
+
+            if (i >= p_nextValue_1_.length) {
+                i = 0;
+            }
+
+            return p_nextValue_1_[i];
+        }
+    }
+	
 	public void setAllAnimations(boolean p_setAllAnimations_1_) {
         int i = p_setAllAnimations_1_ ? 0 : 2;
         this.ofAnimatedWater = i;