diff options
Diffstat (limited to 'ihl/enviroment/LightSource.java')
| -rw-r--r-- | ihl/enviroment/LightSource.java | 167 |
1 files changed, 136 insertions, 31 deletions
diff --git a/ihl/enviroment/LightSource.java b/ihl/enviroment/LightSource.java index ff4a91f..55f7c6c 100644 --- a/ihl/enviroment/LightSource.java +++ b/ihl/enviroment/LightSource.java @@ -6,8 +6,10 @@ import cpw.mods.fml.relauncher.Side; import cpw.mods.fml.relauncher.SideOnly; import ihl.ClientProxy; import ihl.IHLMod; +import ihl.utils.IHLMathUtils; +import net.minecraft.world.World; -@SideOnly(value=Side.CLIENT) +@SideOnly(value = Side.CLIENT) public class LightSource { private final int centerX; private final int centerY; @@ -24,8 +26,7 @@ public class LightSource { private final int power; public final BitSet illuminatedBlocks = new BitSet(); - public LightSource(int centerX1, int centerY1, int centerZ1, - int red1, int green1, int blue1, int power1) { + public LightSource(int centerX1, int centerY1, int centerZ1, int red1, int green1, int blue1, int power1) { centerX = centerX1; centerY = centerY1; centerZ = centerZ1; @@ -34,45 +35,149 @@ public class LightSource { blue = blue1; power = power1; } - - public void setBorders(int fromX1, int fromY1, int fromZ1, - int toX1, int toY1, int toZ1) - { - fromX=fromX1; - fromY=fromY1; - fromZ=fromZ1; - toX=toX1; - toY=toY1; - toZ=toZ1; + + public void setBorders(int fromX1, int fromY1, int fromZ1, int toX1, int toY1, int toZ1) { + fromX = fromX1; + fromY = fromY1; + fromZ = fromZ1; + toX = toX1; + toY = toY1; + toZ = toZ1; } public boolean isBlockIlluminated(int x, int y, int z) { - if(x<fromX || x>toX || y<fromY || y>toY || z<fromZ || z>toZ) - { + if (x < fromX || x > toX || y < fromY || y > toY || z < fromZ || z > toZ) { return false; - } - else - { + } else { int rx = x - centerX; int ry = y - centerY; int rz = z - centerZ; - int l = ((ClientProxy)IHLMod.proxy).getLightHandler().encodeXYZ(rx, ry, rz); + int l = ((ClientProxy) IHLMod.proxy).getLightHandler().encodeXYZ(rx, ry, rz); return illuminatedBlocks.get(l); } } public int[] getLightValue(int x, int y, int z, int[] normal) { - int dx = centerX-x; - int dy = centerY-y; - int dz = centerZ-z; - int d = dx*dx+dy*dy+dz*dz; - dx=normal[0]*dx; - dy=normal[1]*dy; - dz=normal[2]*dz; - dx=dx>0?(dx<<16)/d:0; - dy=dy>0?(dy<<16)/d:0; - dz=dz>0?(dz<<16)/d:0; - int brightness = Math.min(power*(dx+dy+dz)>>16,16); - return new int[]{brightness, this.red, this.blue, this.green}; + int dx = centerX - x; + int dy = centerY - y; + int dz = centerZ - z; + int d = dx * dx + dy * dy + dz * dz; + if (d == 0) { + return new int[] { 0xf0, this.red, this.blue, this.green }; + } + if (normal[0] + normal[1] + normal[2] == 0) { + dx = dx < 0 ? -dx : dx; + dy = dy < 0 ? -dy : dy; + dz = dz < 0 ? -dz : dz; + } else { + dx = normal[0] * dx; + dy = normal[1] * dy; + dz = normal[2] * dz; + dx = dx > 0 ? dx : 0; + dy = dy > 0 ? dy : 0; + dz = dz > 0 ? dz : 0; + } + int r = power * (dx + dy + dz) / d; + r = r<0?0:r; + int brightness = r > 15 ? 15 : r; + return new int[] { brightness << 4, this.red*r, this.green*r, this.blue*r}; + } + + @Override + public boolean equals(Object o) { + if (o instanceof LightSource) { + LightSource otherLS = (LightSource) o; + return this.centerX == otherLS.centerX && this.centerY == otherLS.centerY && this.centerZ == otherLS.centerZ + && this.fromX == otherLS.fromX && this.fromY == otherLS.fromY && this.fromZ == otherLS.fromZ + && this.toX == otherLS.toX && this.toY == otherLS.toY && this.toZ == otherLS.toZ; + } + return false; + } + + public void provideLight(World world, int x, int y, int z) { + int dx = x-centerX;//100 10 20 + int dy = y-centerY; + int dz = z-centerZ; + int sqd = dx*dx+dy*dy+dz*dz; + float d = IHLMathUtils.sqrt(sqd); + float dx1 = dx/d; + float dy1 = dy/d; + float dz1 = dz/d; + float x1 = x+0.5f; + float y1 = y+0.5f; + float z1 = z+0.5f; + for(int i=0;i<64;i++){ + x1+=dx1; + y1+=dy1; + z1+=dz1; + int absX = (int)x1; + int absY = (int)y1; + int absZ = (int)z1; + int ddx = absX-centerX; + int ddy = absY-centerY; + int ddz = absZ-centerZ; + this.illuminatedBlocks.set(((ClientProxy) IHLMod.proxy).getLightHandler().encodeXYZ(ddx, ddy, ddz)); + if (absX < fromX) { + fromX = absX; + } else if (absY < fromY) { + fromY = absY; + } else if (absZ < fromZ) { + fromZ = absZ; + } else if (absX > toX) { + toX = absX; + } else if (absY > toY) { + toY = absY; + } else if (absZ > toZ) { + toZ = absZ; + } + if(world.getBlockLightOpacity(absX, absY, absZ)>192) { + break; + } + } + } + + public void castShadow(World world, int x, int y, int z) { + int dx = x-centerX; + int dy = y-centerY; + int dz = z-centerZ; + int sqd = dx*dx+dy*dy+dz*dz; + float d = IHLMathUtils.sqrt(sqd); + float dx1 = dx/d; + float dy1 = dy/d; + float dz1 = dz/d; + float x1 = x+0.5f; + float y1 = y+0.5f; + float z1 = z+0.5f; + x1+=dx1; + y1+=dy1; + z1+=dz1; + for(int i=0;i<64;i++){ + x1+=dx1; + y1+=dy1; + z1+=dz1; + int absX = (int)x1; + int absY = (int)y1; + int absZ = (int)z1; + int ddx = absX-centerX; + int ddy = absY-centerY; + int ddz = absZ-centerZ; + this.illuminatedBlocks.clear(((ClientProxy) IHLMod.proxy).getLightHandler().encodeXYZ(ddx, ddy, ddz)); + if (absX < fromX) { + fromX = absX; + } else if (absY < fromY) { + fromY = absY; + } else if (absZ < fromZ) { + fromZ = absZ; + } else if (absX > toX) { + toX = absX; + } else if (absY > toY) { + toY = absY; + } else if (absZ > toZ) { + toZ = absZ; + } + if(world.getBlockLightOpacity(absX, absY, absZ)>192) { + break; + } + } } } |