X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fchunk.hpp;h=3c301803495038beeb99f59db847db5ffa6d1498;hb=eca1fdcc8e34a4918418b2de122c6200aeb7ceaf;hp=9d2f319c08a2a7a4913a1c7b63be0032ecb1f997;hpb=804bde3fc09e4317eef629861638a68bfad3e343;p=blank.git

diff --git a/src/chunk.hpp b/src/chunk.hpp
index 9d2f319..3c30180 100644
--- a/src/chunk.hpp
+++ b/src/chunk.hpp
@@ -14,6 +14,9 @@ namespace blank {
 /// cube of size 16 (256 tiles, 4096 blocks)
 class Chunk {
 
+public:
+	using Pos = glm::tvec3<int>;
+
 public:
 	Chunk();
 
@@ -23,9 +26,11 @@ public:
 	static constexpr int Width() { return 16; }
 	static constexpr int Height() { return 16; }
 	static constexpr int Depth() { return 16; }
-	static glm::vec3 Extent() { return glm::vec3(Width(), Height(), Depth()); }
+	static Pos Extent() { return { Width(), Height(), Depth() }; }
 	static constexpr int Size() { return Width() * Height() * Depth(); }
 
+	static AABB Bounds() { return AABB{ { 0, 0, 0 }, Extent() }; }
+
 	static constexpr bool InBounds(const glm::vec3 &pos) {
 		return
 			pos.x >= 0 && pos.x < Width() &&
@@ -38,20 +43,21 @@ public:
 	static constexpr bool InBounds(int idx) {
 		return idx >= 0 && idx < Size();
 	}
-	static glm::vec3 ToCoords(int idx) {
-		return glm::vec3(
-			0.5f + idx % Width(),
-			0.5f + (idx / Width()) % Height(),
-			0.5f + idx / (Width() * Height())
+	static Block::Pos ToCoords(int idx) {
+		return Block::Pos(
+			0.5f + (idx % Width()),
+			0.5f + ((idx / Width()) % Height()),
+			0.5f + (idx / (Width() * Height()))
 		);
 	}
 
+	void Allocate();
 	void Invalidate() { dirty = true; }
 
 	Block &BlockAt(int index) { return blocks[index]; }
 	const Block &BlockAt(int index) const { return blocks[index]; }
-	Block &BlockAt(const glm::vec3 &pos) { return BlockAt(ToIndex(pos)); }
-	const Block &BlockAt(const glm::vec3 &pos) const { return BlockAt(ToIndex(pos)); }
+	Block &BlockAt(const Block::Pos &pos) { return BlockAt(ToIndex(pos)); }
+	const Block &BlockAt(const Block::Pos &pos) const { return BlockAt(ToIndex(pos)); }
 
 	bool Intersection(
 		const Ray &,
@@ -60,9 +66,9 @@ public:
 		float *dist = nullptr,
 		glm::vec3 *normal = nullptr) const;
 
-	void Position(const glm::vec3 &);
-	const glm::vec3 &Position() const { return position; }
-	const glm::mat4 &Transform() const { return transform; }
+	void Position(const Pos &);
+	const Pos &Position() const { return position; }
+	glm::mat4 Transform(const Pos &offset) const;
 
 	void Draw();
 
@@ -73,8 +79,7 @@ private:
 private:
 	std::vector<Block> blocks;
 	Model model;
-	glm::vec3 position;
-	glm::mat4 transform;
+	Pos position;
 	bool dirty;
 
 };