keep mouse in window instead of setting cursor pos to center

src/config.h

@@ -7,7 +7,7 @@
 
 #define PIXELS_PER_UNIT 256
 
-#define GAME_FPS 50
+#define GAME_FPS 30
 
 #define USER_FRAME_LIMIT 300
 
@@ -27,4 +27,4 @@
 #define AUDIO_ENABLED 0
 #define VSYNC_ENABLED 0
 
-#define MOUSE_SENSITIVITY 1.5
+#define MOUSE_SENSITIVITY 1

src/sys.h

@@ -289,6 +289,8 @@ u64 sys_window_get_internal_handle(struct sys_window *sys_window);
 void sys_window_cursor_set_pos(struct sys_window *sys_window, struct v2 pos);
 void sys_window_cursor_show(struct sys_window *sys_window);
 void sys_window_cursor_hide(struct sys_window *sys_window);
+void sys_window_cursor_enable_keep_in_window(struct sys_window *sys_window);
+void sys_window_cursor_disable_keep_in_window(struct sys_window *sys_window);
 
 /* ========================== *
  * Mutex

src/sys_win32.c

@@ -33,10 +33,12 @@ struct win32_condition_variable {
 };
 
 enum win32_window_cursor_set_flag {
-    WIN32_WINDOW_CURSOR_SET_FLAG_NONE       = 0x0,
+    WIN32_WINDOW_CURSOR_SET_FLAG_NONE                   = 0x0,
-    WIN32_WINDOW_CURSOR_SET_FLAG_POSITION   = 0x1,
+    WIN32_WINDOW_CURSOR_SET_FLAG_POSITION               = 0x1,
-    WIN32_WINDOW_CURSOR_SET_FLAG_HIDE       = 0x2,
+    WIN32_WINDOW_CURSOR_SET_FLAG_HIDE                   = 0x2,
-    WIN32_WINDOW_CURSOR_SET_FLAG_SHOW       = 0x4
+    WIN32_WINDOW_CURSOR_SET_FLAG_SHOW                   = 0x4,
+    WIN32_WINDOW_CURSOR_SET_FLAG_ENABLE_KEEP_IN_WINDOW  = 0X8,
+    WIN32_WINDOW_CURSOR_SET_FLAG_DISABLE_KEEP_IN_WINDOW = 0X10
 };
 
 struct win32_window {
@@ -597,6 +599,22 @@ INTERNAL void window_thread_entry_point(void *arg)
                 SetCursorPos(p.x, p.y);
             }
 
+            /* Stop keep in window */
+            if (cursor_flags & WIN32_WINDOW_CURSOR_SET_FLAG_DISABLE_KEEP_IN_WINDOW) {
+                ClipCursor(NULL);
+            }
+
+            /* Start keep in window */
+            if (cursor_flags & WIN32_WINDOW_CURSOR_SET_FLAG_ENABLE_KEEP_IN_WINDOW) {
+                RECT clip = {
+                    .left = window->x,
+                    .right = window->x + window->width,
+                    .top = window->y,
+                    .bottom = window->y + window->height
+                };
+                ClipCursor(&clip);
+            }
+
             window->cursor_set_flags = 0;
         }
     }
@@ -865,13 +883,13 @@ INTERNAL LRESULT CALLBACK win32_window_proc(HWND hwnd, UINT msg, WPARAM wparam,
         case WM_RBUTTONUP:
         case WM_XBUTTONUP: {
             ReleaseCapture();
-            is_release = 1;
+            is_release = true;
         } FALLTHROUGH;
         case WM_LBUTTONDOWN:
         case WM_MBUTTONDOWN:
         case WM_RBUTTONDOWN:
         case WM_XBUTTONDOWN: {
-            if(is_release == 0) {
+            if(!is_release) {
                 SetCapture(hwnd);
             }
 
@@ -1103,6 +1121,20 @@ void sys_window_cursor_hide(struct sys_window *sys_window)
     win32_window_wake(window);
 }
 
+void sys_window_cursor_enable_keep_in_window(struct sys_window *sys_window)
+{
+    struct win32_window *window = (struct win32_window *)sys_window->handle;
+    window->cursor_set_flags |= WIN32_WINDOW_CURSOR_SET_FLAG_ENABLE_KEEP_IN_WINDOW;
+    win32_window_wake(window);
+}
+
+void sys_window_cursor_disable_keep_in_window(struct sys_window *sys_window)
+{
+    struct win32_window *window = (struct win32_window *)sys_window->handle;
+    window->cursor_set_flags |= WIN32_WINDOW_CURSOR_SET_FLAG_DISABLE_KEEP_IN_WINDOW;
+    win32_window_wake(window);
+}
+
 /* ========================== *
  * Mutex
  * ========================== */

src/ttf_dwrite.cpp

@@ -80,7 +80,7 @@ struct ttf_decode_result ttf_decode(struct arena *arena, struct buffer encoded,
 
     IDWriteFactory5 *factory = L.factory;
 
-    /* TOOD: handle errors */
+    /* TODO: handle errors */
     HRESULT error = 0;
     (UNUSED)error;
 

src/user.c

@@ -447,6 +447,7 @@ INTERNAL void user_update(void)
         /* Update mouse pos */
         if (event->kind == SYS_EVENT_KIND_MOUSE_MOVE) {
             L.screen_mouse = event->mouse_position;
+            //L.screen_mouse_delta = v2_add(L.screen_mouse_delta, event->mouse_delta);
         }
 
         /* Update mouse delta */
@@ -503,6 +504,7 @@ INTERNAL void user_update(void)
 
     if (L.debug_camera) {
         sys_window_cursor_show(L.window);
+        sys_window_cursor_disable_keep_in_window(L.window);
 
         /* Pan view */
         if (L.bind_states[USER_BIND_KIND_PAN].is_held) {
@@ -546,9 +548,9 @@ INTERNAL void user_update(void)
             L.world_view.center = v2_add(L.world_view.center, offset);
         }
     } else {
-        /* Keep cursor invisible at center of screen */
+        /* Keep cursor invisible and in screen */
         sys_window_cursor_hide(L.window);
-        sys_window_cursor_set_pos(L.window, L.screen_center);
+        sys_window_cursor_enable_keep_in_window(L.window);
     }
 
     /* ========================== *