Fixed funny resolution changing.

src/game.odin

@@ -16,7 +16,11 @@ Resolution :: struct {
 
 // Preset window dimensions
 RESOLUTIONS := [?]Resolution{
+	{0, 0, "Fullscreen"},
+    {1024, 768, "1024x768"},
     {1280, 720, "1280x720"},
+	{1366, 768, "1366x768"},
+	{1600, 900, "1600x900"}, 
     {1920, 1080, "1920x1080"},
     {2560, 1440, "2560x1440"},
     {3840, 2160, "3840x2160"},
@@ -55,14 +59,16 @@ gamepad_compat := #load("../gamecontrollerdb.txt", string)
 // Game Lifecycle
 // ------------------------------------------------------------------------------
 game_init :: proc(game: ^Game) {
-    rl.SetConfigFlags({.WINDOW_ALWAYS_RUN, .MSAA_4X_HINT})
+    rl.SetConfigFlags({.WINDOW_ALWAYS_RUN, .MSAA_4X_HINT, .WINDOW_RESIZABLE})
-    game.res_index = 2
+    game.res_index = 0
     game.window_w  = RESOLUTIONS[game.res_index].width
     game.window_h  = RESOLUTIONS[game.res_index].height
 
     rl.InitWindow(game.window_w, game.window_h, WINDOW_TITLE)
     rl.SetTargetFPS(60)
     rl.SetExitKey(.KEY_NULL)
+	rl.ToggleBorderlessWindowed()
+	rl.HideCursor()
 
     gamepad_cstr := strings.clone_to_cstring(gamepad_compat)
     defer delete(gamepad_cstr)
@@ -178,7 +184,7 @@ game_render :: proc(game: ^Game) {
     render_game_to_window(game)
 
 
-	when DEBUG do rl.DrawFPS(10, game.window_h - 20)
+	when DEBUG do rl.DrawFPS(10, rl.GetScreenHeight() - 20)
     rl.EndDrawing()
 }
 
@@ -209,6 +215,17 @@ game_trigger_shake :: proc(game: ^Game, intensity: f32, duration: f32 = 0.15) {
 game_set_resolution :: proc(game: ^Game, res_index: int) {
     game.res_index = clamp(res_index, 0, len(RESOLUTIONS) - 1)
 
+    borderless := rl.IsWindowState({.BORDERLESS_WINDOWED_MODE})
+    if game.res_index == 0 {
+        if !borderless do rl.ToggleBorderlessWindowed()
+        return
+    }
+
+    if borderless {
+    	rl.ToggleBorderlessWindowed()  
+        rl.RestoreWindow()
+    } 
+    
     target_w := RESOLUTIONS[game.res_index].width
     target_h := RESOLUTIONS[game.res_index].height
 
@@ -226,13 +243,18 @@ game_set_resolution :: proc(game: ^Game, res_index: int) {
 render_game_to_window :: proc(game: ^Game) {
     texture := game.viewport.texture
 
+    w, h := f32(rl.GetScreenWidth()), f32(rl.GetScreenHeight())
+    s := min(w / VIEWPORT_W, h / VIEWPORT_H)
+    dst := rl.Rectangle{(w - VIEWPORT_W*s)/2, (h - VIEWPORT_H*s)/2, VIEWPORT_W*s, VIEWPORT_H*s}
+
     rl.BeginShaderMode(game.crt_shader)
         rl.DrawTexturePro(
             texture, 
             // src: inverted y coordinate flips opengl texture buffer correctly
             rl.Rectangle{0, 0, f32(texture.width), -f32(texture.height)},
             // dst: scales viewport canvas to fill window resolution
-            rl.Rectangle{0, 0, f32(game.window_w), f32(game.window_h)},
+            // rl.Rectangle{0, 0, f32(game.window_w), f32(game.window_h)},
+            dst,
             rl.Vector2{},
             0,
             rl.WHITE,