ClassiCube/ClassicalSharp/Blocks/BlockInfo.Culling.cs

44 lines
1.6 KiB
C#

using System;
namespace ClassicalSharp {
public partial class BlockInfo {
bool[] hidden = new bool[BlocksCount * BlocksCount * TileSide.Sides];
internal void SetupCullingCache() {
for( int tileI = 1; tileI < BlocksCount; tileI++ ) {
for( int neighbourI = 1; neighbourI < BlocksCount; neighbourI++ ) {
byte tile = (byte)tileI, neighbour = (byte)neighbourI;
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, Height[tile] == 1 );
SetHidden( tile, neighbour, TileSide.Bottom, Height[neighbour] == 1 );
}
}
}
// Leaves should show faces with their neighbours (matches Classic)
for( int i = 0; i < TileSide.Sides; i++ ) {
SetHidden( (byte)Block.Leaves, (byte)Block.Leaves, i, false );
}
}
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 ) * TileSide.Sides + tileSide] = value;
}
public bool IsFaceHidden( byte tile, byte block, int tileSide ) {
return hidden[( tile * BlocksCount + block ) * TileSide.Sides + tileSide];
}
}
}