From ae44478b30d890fe0fb04022f44d474dcdcc3f9d Mon Sep 17 00:00:00 2001
From: Lassi Pulkkinen <lassi@pulk.fi>
Date: Thu, 31 Oct 2024 03:11:21 +0200
Subject: Initial commit (import old repo)

---
 position.ha | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 position.ha

(limited to 'position.ha')

diff --git a/position.ha b/position.ha
new file mode 100644
index 0000000..aa0e36d
--- /dev/null
+++ b/position.ha
@@ -0,0 +1,49 @@
+use glm;
+
+type ChunkPos = struct {
+	x: i32,
+	z: i32,
+};
+
+type SectionPos = union {
+	chunk: ChunkPos,
+	struct {
+		ChunkPos,
+		y: i8,
+	},
+};
+
+type BlockPos = struct {
+	x: i32,
+	y: i16,
+	z: i32,
+};
+
+type Dir = enum u8 {
+	WEST,
+	EAST,
+	DOWN,
+	UP,
+	NORTH,
+	SOUTH,
+};
+
+fn block_section(pos: BlockPos) SectionPos = {
+	return SectionPos {
+		x = pos.x >> 4,
+		y = (pos.y >> 4): i8,
+		z = pos.z >> 4,
+	};
+};
+
+fn section_origin(pos: SectionPos) glm::v3 = {
+	return glm::v3_new(
+		pos.x: f32 * 16.0,
+		pos.y: f32 * 16.0,
+		pos.z: f32 * 16.0,
+	);
+};
+
+fn block_origin(pos: BlockPos) glm::v3 = {
+	return glm::v3_new(pos.x: f32, pos.y: f32, pos.z: f32);
+};
-- 
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