Screen background

assets/scene/initial.lua

@@ -7,6 +7,8 @@ module('screen')
 module('time')
 
 camera = cameraCreate(CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC)
+text = "Hello World"
+screenSetBackground(colorBlack())
 
 function sceneDispose()
 end
@@ -14,7 +16,6 @@ end
 function sceneUpdate()
 end
 
-text = "Hello World"
 
 function sceneRender()
   cameraPushMatrix(camera)

src/display/display.c

@@ -120,7 +120,7 @@ errorret_t displayUpdate(void) {
   screenBind();
   frameBufferClear(
     FRAMEBUFFER_CLEAR_COLOR | FRAMEBUFFER_CLEAR_DEPTH,
-    COLOR_CORNFLOWER_BLUE
+    SCREEN.background
   );
   errorChain(sceneRender());
 

src/display/screen.c

@@ -15,6 +15,7 @@ screen_t SCREEN;
 void screenInit() {
   memoryZero(&SCREEN, sizeof(screen_t));
 
+  SCREEN.background = COLOR_CORNFLOWER_BLUE;
 
   #if DISPLAY_SIZE_DYNAMIC == 1
     SCREEN.mode = SCREEN_MODE_FIXED_VIEWPORT_HEIGHT;

src/display/screen.h

@@ -10,6 +10,7 @@
 #include "display/framebuffer.h"
 #include "display/camera/camera.h"
 #include "display/mesh/quad.h"
+#include "display/color.h"
 
 #if DISPLAY_SIZE_DYNAMIC == 1
   #ifndef DISPLAY_SCREEN_HEIGHT_DEFAULT
@@ -44,6 +45,7 @@ typedef struct {
   int32_t width;
   int32_t height;
   float_t aspect;
+  color_t background;
 
   #if DISPLAY_SIZE_DYNAMIC == 1
     framebuffer_t framebuffer;

src/script/module/display/modulescreen.c

@@ -14,6 +14,7 @@ void moduleScreen(scriptcontext_t *context) {
 
   lua_register(context->luaState, "screenGetWidth", moduleScreenGetWidth);
   lua_register(context->luaState, "screenGetHeight", moduleScreenGetHeight);
+  lua_register(context->luaState, "screenSetBackground", moduleScreenSetBackground);
 }
 
 int moduleScreenGetWidth(lua_State *L) {
@@ -27,3 +28,16 @@ int moduleScreenGetHeight(lua_State *L) {
   lua_pushinteger(L, SCREEN.height);
   return 1;
 }
+
+int moduleScreenSetBackground(lua_State *L) {
+  assertNotNull(L, "Lua state is null");
+  
+  if(!lua_isuserdata(L, 1)) {
+    luaL_error(L, "Screen background color must be a color struct");
+    return 0;
+  }
+
+  color_t *color = (color_t*)luaL_checkudata(L, 1, "color_mt");
+  SCREEN.background = *color;
+  return 0;
+}

src/script/module/display/modulescreen.h

@@ -30,3 +30,11 @@ int moduleScreenGetWidth(lua_State *L);
  * @return Count of return values.
  */
 int moduleScreenGetHeight(lua_State *L);
+
+/**
+ * Sets the screen background color.
+ * 
+ * @param L The Lua state.
+ * @return Count of return values.
+ */
+int moduleScreenSetBackground(lua_State *L);