1 files changed, 70 insertions, 0 deletions
diff --git a/source/CommonVertexIndex.hpp b/source/CommonVertexIndex.hpp
new file mode 100644
index 0000000..c15e658
--- /dev/null
+++ b/source/CommonVertexIndex.hpp
@@ -0,0 +1,70 @@
+#pragma once
+
+#include "Color.hpp"
+#include "Rect.hpp"
+#include "Texture.hpp"
+
+#include <cstdint>
+
+// Suffixes:
+// - _P_osition
+// - _T_exture coordiantes
+// - _C_olor
+// - _N_ormal
+// When an number is attached to some suffix, it means there are N number of this element
+
+struct Index_U16 {
+	uint16_t value;
+
+	static void Assign(uint16_t indices[6], uint16_t startIdx);
+	static void Assign(uint16_t indices[6], uint16_t startIdx, uint16_t topLeft, uint16_t topRight, uint16_t bottomRight, uint16_t bottomLeft);
+	static void Assign(uint16_t indices[6], uint16_t topLeft, uint16_t topRight, uint16_t bottomRight, uint16_t bottomLeft);
+};
+
+struct Index_U32 {
+	uint32_t value;
+
+	static void Assign(uint32_t indices[6], uint32_t startIdx);
+	static void Assign(uint32_t indices[6], uint32_t startIdx, uint32_t topLeft, uint32_t topRight, uint32_t bottomRight, uint32_t bottomLeft);
+	static void Assign(uint32_t indices[6], uint32_t topLeft, uint32_t topRight, uint32_t bottomRight, uint32_t bottomLeft);
+};
+
+struct Vertex_PC {
+	float x, y, z;
+	uint8_t r, g, b, a;
+
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PC vertices[4], const Rect<float>& rect);
+	/// Assign position in regular cartesian coordinate space (x increases from left to right, y increases from top to bottom).
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PC vertices[4], glm::vec2 bottomLeft, glm::vec2 topRight);
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PC vertices[4], float z);
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PC vertices[4], RgbaColor color);
+};
+
+struct Vertex_PTC {
+	float x, y, z;
+	float u, v;
+	uint8_t r, g, b, a;
+
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PTC vertices[4], const Rect<float>& rect);
+	/// Assign position in regular cartesian coordinate space (x increases from left to right, y increases from top to bottom).
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PTC vertices[4], glm::vec2 bottomLeft, glm::vec2 topRight);
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PTC vertices[4], float z);
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PTC vertices[4], const Subregion& uvs);
+	/// Assumes the 4 vertices come in TL, TR, BR, BL order.
+	static void Assign(Vertex_PTC vertices[4], RgbaColor color);
+};
+
+struct Vertex_PTNC {
+	float x, y, z;
+	float nx, ny, nz;
+	float u, v;
+	uint8_t r, g, b, a;
+};