From cc6fb8c33637566a7b116d46440e6063f016deea Mon Sep 17 00:00:00 2001
From: vimene <vincent.menegaux@gmail.com>
Date: Tue, 31 Dec 2024 03:40:14 +0100
Subject: various improvements

- added quaternions and rewrote all rotations to use them
- added transforms to put all object transforms in a single place
- added Wavefront .obj file parser
- removed frame buffer's abstract class
- improved vectors, matrices, triangles, vertices and vertices data by putting all code in header file
- added vector's operations
- changed from NULL to nullptr
- miscellaneous improvements
---
 src/o3d/vertex_data.h | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

(limited to 'src/o3d/vertex_data.h')

diff --git a/src/o3d/vertex_data.h b/src/o3d/vertex_data.h
index b8ed14c..71f42cd 100644
--- a/src/o3d/vertex_data.h
+++ b/src/o3d/vertex_data.h
@@ -3,14 +3,22 @@
 
 namespace engine::o3d {
 
-class VertexData {
-    public:
-        static VertexData lerp(const VertexData& vd1, const VertexData& vd2, float b0);
-        static VertexData bilerp(const VertexData& vd1, const VertexData& vd2, const VertexData& vd3, float b0, float b1);
+struct VertexData {
+    static constexpr VertexData lerp(const VertexData& vd1, const VertexData& vd2, float b0) {
+        return {
+            b0 * vd1.tx + (1.f - b0) * vd2.tx,
+            b0 * vd1.ty + (1.f - b0) * vd2.ty
+        };
+    }
 
-        float tx, ty;
+    static constexpr VertexData bilerp(const VertexData& vd1, const VertexData& vd2, const VertexData& vd3, float b0, float b1) {
+        return {
+            b0 * vd1.tx + b1 * vd2.tx + (1.f - b0 - b1) * vd3.tx,
+            b0 * vd1.ty + b1 * vd2.ty + (1.f - b0 - b1) * vd3.ty
+        };
+    }
 
-        VertexData(float tx, float ty);
+    float tx, ty;
 };
 
 }
-- 
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