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archive/old_display_system/display/mesh/cube.h

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "display/mesh/mesh.h"
+#include "display/color.h"
+
+#define CUBE_FACE_COUNT 6
+#define CUBE_VERTICES_PER_FACE 6
+#define CUBE_VERTEX_COUNT (CUBE_FACE_COUNT * CUBE_VERTICES_PER_FACE)
+#define CUBE_PRIMITIVE_TYPE MESH_PRIMITIVE_TYPE_TRIANGLES
+
+extern mesh_t CUBE_MESH_SIMPLE;
+extern meshvertex_t CUBE_MESH_SIMPLE_VERTICES[CUBE_VERTEX_COUNT];
+
+/**
+ * Initializes the simple unit cube mesh (0,0,0) to (1,1,1).
+ *
+ * @return Error for initialization of the cube mesh.
+ */
+errorret_t cubeInit();
+
+/**
+ * Buffers a 3D axis-aligned cube into the provided vertex array.
+ * Writes CUBE_VERTEX_COUNT vertices (6 faces x 6 vertices, CCW winding).
+ *
+ * @param vertices The vertex array to buffer into.
+ * @param min The minimum XYZ corner of the cube.
+ * @param max The maximum XYZ corner of the cube.
+ * @param color The color applied to all vertices.
+ */
+void cubeBuffer(
+  meshvertex_t *vertices,
+  const vec3 min,
+  const vec3 max
+  #if MESH_ENABLE_COLOR
+    , const color_t color
+  #endif
+);