Renderer calculates NDC coordinates from screen coords

src/include/Dengine/AssetManager.h

@@ -32,14 +32,21 @@ typedef struct TexAtlas
 	v4 texRect[128];
 } TexAtlas;
 
+typedef struct Font
+{
+	TexAtlas *atlas;
+	Texture *tex;
+	v2i codepointRange;
+	v2i charSize;
+} Font;
+
 // TODO(doyle): Switch to hash based lookup
 typedef struct AssetManager
 {
 	Texture textures[256];
 	TexAtlas texAtlas[256];
 	Shader shaders[256];
-
-	v2i codepointRange;
+	Font font;
 } AssetManager;
 
 GLOBAL_VAR AssetManager assetManager;

src/include/Dengine/Renderer.h

@@ -11,6 +11,9 @@ typedef struct Renderer
 	GLuint vao;
 	GLuint vbo;
 	i32 numVertexesInVbo;
+	v2 vertexNdcFactor;
+	v2 size;
+
 } Renderer;
 
 typedef struct RenderQuad
@@ -24,6 +27,9 @@ void renderer_entity(Renderer *renderer, Entity *entity, f32 rotate,
 void renderer_object(Renderer *renderer, v2 pos, v2 size, f32 rotate, v3 color,
                      Texture *tex);
 
+RenderQuad renderer_createQuad(Renderer *renderer, v4 quadRect, v4 texRect,
+                                    Texture *tex);
+
 INTERNAL inline void renderer_flipTexCoord(v4 *texCoords, b32 flipX, b32 flipY)
 {
 	if (flipX)
@@ -41,23 +47,12 @@ INTERNAL inline void renderer_flipTexCoord(v4 *texCoords, b32 flipX, b32 flipY)
 	}
 }
 
-INTERNAL inline RenderQuad renderer_createQuad(v4 quadRectNdc, v4 texRectNdc)
-{
-	// NOTE(doyle): Draws a series of triangles (three-sided polygons) using
-	// vertices v0, v1, v2, then v2, v1, v3 (note the order)
-	RenderQuad result = {0};
-	result.vertex[0] = V4(quadRectNdc.x, quadRectNdc.y, texRectNdc.x, texRectNdc.y); // Top left
-	result.vertex[1] = V4(quadRectNdc.x, quadRectNdc.w, texRectNdc.x, texRectNdc.w); // Bottom left
-	result.vertex[2] = V4(quadRectNdc.z, quadRectNdc.y, texRectNdc.z, texRectNdc.y); // Top right
-	result.vertex[3] = V4(quadRectNdc.z, quadRectNdc.w, texRectNdc.z, texRectNdc.w); // Bottom right
-	return result;
-}
-
-INTERNAL inline RenderQuad renderer_createDefaultQuad(v4 texRectNdc)
+INTERNAL inline RenderQuad renderer_createDefaultQuad(Renderer *renderer,
+                                                      v4 texRect, Texture *tex)
 {
 	RenderQuad result = {0};
-	v4 defaultVertices = V4(0.0f, 1.0f, 1.0f, 0.0f);
-	result = renderer_createQuad(defaultVertices, texRectNdc);
+	v4 defaultQuad = V4(0.0f, renderer->size.h, renderer->size.w, 0.0f);
+	result = renderer_createQuad(renderer, defaultQuad, texRect, tex);
 	return result;
 }
 

src/include/WorldTraveller/WorldTraveller.h

@@ -30,7 +30,6 @@ typedef struct GameState
 {
 	enum State state;
 	b32 keys[NUM_KEYS];
-	i32 width, height;
 
 	Renderer renderer;
 	i32 heroIndex;
@@ -46,6 +45,6 @@ typedef struct GameState
 	AssetManager assetManager;
 } GameState;
 
-void worldTraveller_gameInit(GameState *state);
+void worldTraveller_gameInit(GameState *state, v2i windowSize);
 void worldTraveller_gameUpdateAndRender(GameState *state, const f32 dt);
 #endif