rough (untested) implementation of Worley noise

[blank.git] / src / block.cpp

diff --git a/src/block.cpp b/src/block.cpp
index c9fceec85aeb6da7ebe03381bd3af182cf1ac22f..50ade3901fd65aebdf96ef29ebd2499fc6ffbf41 100644 (file)
--- a/src/block.cpp
+++ b/src/block.cpp
@@ -56,6 +56,41 @@ BlockType::BlockType(bool v, const glm::vec3 &col, const Shape *s)
 
 }
 
+namespace {
+
+const Block::Face face_map[Block::FACE_COUNT * Block::TURN_COUNT][Block::FACE_COUNT] = {
+       { Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_FRONT, Block::FACE_BACK,  }, // face: up,    turn: none x
+       { Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_LEFT,  Block::FACE_RIGHT, }, // face: up,    turn: left
+       { Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_BACK,  Block::FACE_FRONT, }, // face: up,    turn: around
+       { Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_RIGHT, Block::FACE_LEFT,  }, // face: up,    turn: right
+       { Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_BACK,  Block::FACE_FRONT, }, // face: down,  turn: none
+       { Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_LEFT,  Block::FACE_RIGHT, }, // face: down,  turn: left
+       { Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_FRONT, Block::FACE_BACK,  }, // face: down,  turn: around
+       { Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_RIGHT, Block::FACE_LEFT,  }, // face: down,  turn: right
+       { Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_FRONT, Block::FACE_BACK,  }, // face: right, turn: none
+       { Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_DOWN,  Block::FACE_UP,    }, // face: right, turn: left
+       { Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_BACK,  Block::FACE_FRONT, }, // face: right, turn: around
+       { Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_UP,    Block::FACE_DOWN,  }, // face: right, turn: right
+       { Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_FRONT, Block::FACE_BACK,  }, // face: left,  turn: none
+       { Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_UP,    Block::FACE_DOWN,  }, // face: left,  turn: left
+       { Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_BACK,  Block::FACE_FRONT, }, // face: left,  turn: around
+       { Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_DOWN,  Block::FACE_UP,    }, // face: left,  turn: right
+       { Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_UP,    Block::FACE_DOWN,  }, // face: front, turn: none
+       { Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_LEFT,  Block::FACE_RIGHT, }, // face: front, turn: left
+       { Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_DOWN,  Block::FACE_UP,    }, // face: front, turn: around
+       { Block::FACE_BACK,  Block::FACE_FRONT, Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_RIGHT, Block::FACE_LEFT,  }, // face: front, turn: right
+       { Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_RIGHT, Block::FACE_LEFT,  Block::FACE_DOWN,  Block::FACE_UP,    }, // face: back,  turn: none
+       { Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_DOWN,  Block::FACE_UP,    Block::FACE_LEFT,  Block::FACE_RIGHT, }, // face: back,  turn: left
+       { Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_LEFT,  Block::FACE_RIGHT, Block::FACE_UP,    Block::FACE_DOWN,  }, // face: back,  turn: around
+       { Block::FACE_FRONT, Block::FACE_BACK,  Block::FACE_UP,    Block::FACE_DOWN,  Block::FACE_RIGHT, Block::FACE_LEFT,  }, // face: back,  turn: right
+};
+
+}
+
+bool BlockType::FaceFilled(const Block &block, Block::Face face) const {
+       return fill[face_map[block.orient][face]];
+}
+
 void BlockType::FillModel(
        Model::Buffer &buf,
        const glm::mat4 &transform,