From fcd22d1fd9d99a73eefa984548adf86189a0060b Mon Sep 17 00:00:00 2001
From: onelin <oscar@nelin.dk>
Date: Fri, 21 Mar 2025 13:32:59 +0100
Subject: Reset the camera before first iteration

---
 src/core/src/loop.c                                |  4 +++-
 src/rendering/include/engine/rendering/rendering.h |  1 +
 src/rendering/include/engine/rendering/window.h    |  1 +
 src/rendering/src/rendering.c                      | 10 ++++++++++
 src/rendering/src/window.c                         | 16 ++++++++--------
 5 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/src/core/src/loop.c b/src/core/src/loop.c
index 0062173..dd39db1 100644
--- a/src/core/src/loop.c
+++ b/src/core/src/loop.c
@@ -306,6 +306,9 @@ i32 engine_run(Platform* p, StateType initial_state, void* state_arg) {
   /* The target frametime measured in μs */
   const u32 fps_cap = p->fps_target > 0 ? 1000000 / p->fps_target : 0;
 
+  //window_resize(p->window, p->window->windowsize[0], p->window->windowsize[1]);
+  //r_reset_camera(p->cam);
+
   /* Main loop */
   do {
     /* frame_start is μs since engine was initialized */
@@ -323,7 +326,6 @@ i32 engine_run(Platform* p, StateType initial_state, void* state_arg) {
 
     /* Update */
     StateType next_state;
-    // TODO: maybe use delta instead?
     next_state = update_func(dt, (void*)(mem->data));
 
     if (next_state != STATE_null) {
diff --git a/src/rendering/include/engine/rendering/rendering.h b/src/rendering/include/engine/rendering/rendering.h
index b984176..abfb8d9 100644
--- a/src/rendering/include/engine/rendering/rendering.h
+++ b/src/rendering/include/engine/rendering/rendering.h
@@ -189,6 +189,7 @@ void r_perspective(f32 fov, Camera *c);
 void r_perspective_ortho(f32 sz, Camera *c);
 
 void r_set_camera(Camera* c);
+void r_reset_camera(Camera* c);
 
 //void window_size_callback(GLFWwindow* window, i32 width, i32 height);
 
diff --git a/src/rendering/include/engine/rendering/window.h b/src/rendering/include/engine/rendering/window.h
index 561afd6..e5d3528 100644
--- a/src/rendering/include/engine/rendering/window.h
+++ b/src/rendering/include/engine/rendering/window.h
@@ -39,6 +39,7 @@ typedef struct {
 // Window function
 Window* init_window_glfw(const char* windowtitle, ivec2 windowsize, const u32 flags);
 void destroy_window(Window* w);
+void window_resize(Window* window, int width, int height);
 
 // Renderer intializer(s)
 void init_render_opengl(Window* w, const u32 flags);
diff --git a/src/rendering/src/rendering.c b/src/rendering/src/rendering.c
index a938c78..c2f8ab2 100644
--- a/src/rendering/src/rendering.c
+++ b/src/rendering/src/rendering.c
@@ -352,6 +352,16 @@ void r_set_camera(Camera* c) {
   GLOBAL_PLATFORM->cam = c;
 }
 
+
+void r_reset_camera(Camera* c) {
+  if (c->type == Camera_Perspective) {
+    r_perspective(c->parameters.perspective.fov, c);
+  }
+  else if (c->type == Camera_Orthogonal) {
+    r_perspective_ortho(c->parameters.orthogonal.sz, c);
+  }
+}
+
 void engine_draw_sprite(Sprite* s, v2_i32* pos, f32 scale) {
   if (drawcall_len + 1 >= drawcall_limit) return;
 #ifdef _DEBUG
diff --git a/src/rendering/src/window.c b/src/rendering/src/window.c
index f27640a..b755035 100644
--- a/src/rendering/src/window.c
+++ b/src/rendering/src/window.c
@@ -40,7 +40,7 @@ void window_resize_callback(GLFWwindow* window, int width, int height) {
   gl->Finish();
 }
 
-void window_size_callback(GLFWwindow* window, int width, int height) {
+void framebuffer_resize_callback(GLFWwindow* window, int width, int height) {
   (void)window;
   const GladGLContext* gl = GLOBAL_PLATFORM->window->context;
   Camera* c = GLOBAL_PLATFORM->cam;
@@ -48,13 +48,13 @@ void window_size_callback(GLFWwindow* window, int width, int height) {
   GLOBAL_PLATFORM->window->windowsize[0] = width;
   GLOBAL_PLATFORM->window->windowsize[1] = height;
 
-  if (c->type == Camera_Perspective) {
-    r_perspective(c->parameters.perspective.fov, c);
-  }
-  else if (c->type == Camera_Orthogonal) {
-    r_perspective_ortho(c->parameters.orthogonal.sz, c);
-  }
+  r_reset_camera(c);
+}
 
+void window_resize(Window* window, int width, int height) {
+  /* TODO: Handle different frameworks */
+  window_resize_callback(window->window, width, height);
+  framebuffer_resize_callback(window->window, width, height);
 }
 
 /* This is very glfw specific */
@@ -154,7 +154,7 @@ Window* init_window_glfw(
     printf("ok\n");
 
   // Setup callbacks
-  glfwSetFramebufferSizeCallback(window, window_size_callback);
+  glfwSetFramebufferSizeCallback(window, framebuffer_resize_callback);
   glfwSetWindowSizeCallback(window, window_resize_callback);
   glfwSetKeyCallback(window, (GLFWkeyfun)key_callback);
 
-- 
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