Changing to a pixel art style with crt bg.

src/game.odin

@@ -3,8 +3,10 @@ package game
 import "core:strings"
 import rl "vendor:raylib"
 
-VIEWPORT_W   :: 1280
+// VIEWPORT_W   :: 1280
-VIEWPORT_H   :: 720
+// VIEWPORT_H   :: 720
+VIEWPORT_W   :: 640
+VIEWPORT_H   :: 360
 WINDOW_TITLE :: "Pong"
 
 Resolution :: struct {
@@ -22,10 +24,11 @@ RESOLUTIONS := [?]Resolution{
 }
 
 Game :: struct {
-    viewport:      rl.RenderTexture2D,
+    viewport:     rl.RenderTexture2D,
-    scene_stack:   [dynamic]Scene,
+    bg_texture:   rl.Texture2D, 
-    should_close:  bool,
+    scene_stack:  [dynamic]Scene,
-    audio:         Audio_Manager,
+    should_close: bool,
+    audio:        Audio_Manager,
 
     // resolution state
     window_w: i32,
@@ -61,6 +64,18 @@ game_init :: proc(game: ^Game) {
 
     game.scene_stack = make([dynamic]Scene, 0, 8)
     game.viewport = rl.LoadRenderTexture(VIEWPORT_W, VIEWPORT_H)
+
+    // Force nearest neighbor point filtering on the viewport texture
+    rl.SetTextureFilter(game.viewport.texture, .POINT)
+
+    // Generate soft CRT background radial texture once on startup
+    bg_center := rl.Color{22, 28, 36, 255}
+    bg_corner := rl.Color{6, 8, 12, 255}
+    bg_img    := rl.GenImageGradientRadial(VIEWPORT_W, VIEWPORT_H, 0.3, bg_center, bg_corner)
+    game.bg_texture = rl.LoadTextureFromImage(bg_img)
+    rl.UnloadImage(bg_img) // Free CPU memory
+    // rl.SetTextureFilter(game.bg_texture, .BILINEAR)
+
     game.should_close = false
     set_root_scene(game, make_main_menu()) 
 }
@@ -86,7 +101,7 @@ game_render :: proc(game: ^Game) {
     rl.ClearBackground(rl.BLACK)
 
     rl.BeginTextureMode(game.viewport)
-        rl.ClearBackground(rl.BLACK)
+        rl.DrawTexture(game.bg_texture, 0, 0, rl.WHITE)        
 
         // @note: fine for now but probably not a good idea...
         // Render all scenes in the stack from bottom to top
@@ -98,6 +113,7 @@ game_render :: proc(game: ^Game) {
 
     render_game_to_window(game)
 
+    rl.DrawFPS(10, game.window_h - 20)
     rl.EndDrawing()
 }
 
@@ -105,6 +121,7 @@ game_render :: proc(game: ^Game) {
 game_quit :: proc(game: ^Game) {
     audio_manager_quit(&game.audio)
 
+    rl.UnloadTexture(game.bg_texture)
     rl.UnloadRenderTexture(game.viewport)
     delete(GLOBAL_EVENTS)
     delete(game.scene_stack)
@@ -149,4 +166,5 @@ render_game_to_window :: proc(game: ^Game) {
         0,
         rl.WHITE,
     ) 
+
 }