ClassiCube/Blocks/BlockInfo.Culling.cs
2015-04-12 09:38:47 +10:00

39 lines
No EOL
1.3 KiB
C#

using System;
namespace ClassicalSharp {
public partial class BlockInfo {
bool[] hidden = new bool[BlocksCount * BlocksCount * 6];
void SetupCullingCache() {
for( byte tile = 1; tile < BlocksCount; tile++ ) {
for( byte neighbour = 1; neighbour < BlocksCount; neighbour++ ) {
bool hidden = IsHidden( tile, neighbour );
if( hidden ) {
SetHidden( tile, neighbour, TileSide.Left, true );
SetHidden( tile, neighbour, TileSide.Right, true );
SetHidden( tile, neighbour, TileSide.Front, true );
SetHidden( tile, neighbour, TileSide.Back, true );
SetHidden( tile, neighbour, TileSide.Top, BlockHeight( tile ) == 1 );
SetHidden( tile, neighbour, TileSide.Bottom, BlockHeight( neighbour ) == 1 );
}
}
}
}
bool IsHidden( byte tile, byte block ) {
return
( ( tile == block || ( IsOpaque( block ) && !IsLiquid( block ) ) ) && !IsSprite( tile ) ) ||
( IsLiquid( tile ) && block == (byte)Block.Ice );
}
void SetHidden( byte tile, byte block, int tileSide, bool value ) {
hidden[( tile * BlocksCount + block ) * 6 + tileSide] = value;
}
public bool IsFaceHidden( byte tile, byte block, int tileSide ) {
return hidden[( tile * BlocksCount + block ) * 6 + tileSide];
}
}
}