Move screen stuff into screen.cpp.

source/graphics.cpp

@@ -29,11 +29,9 @@
 #include "tonccpy.h"
 
 #include <nds.h>
-#include <stack>
 
 int Graphics::bg3Main, Graphics::bg2Main, Graphics::bg3Sub, Graphics::bg2Sub;
 bool Graphics::wideScreen = false;
-static std::stack<std::unique_ptr<Screen>> screens;
 
 void Graphics::init(void) {
 	// Initialize video mode
@@ -90,21 +88,4 @@ void Graphics::drawRectangle(int x, int y, int w, int h, u8 color1, u8 color2, b
 	for(int i = 0; i < h; i++) {
 		toncset(dst + ((y + i) * 256 + x), ((i % 2) ? color1 : color2), w);
 	}
-}
-
-void Graphics::drawScreen() {
-	if(!screens.empty())
-		screens.top()->Draw();
-}
-
-void Graphics::screenLogic(u32 hDown, u32 hHeld, touchPosition touch) {
-	if(!screens.empty())
-		screens.top()->Logic(hDown, hHeld, touch);
-}
-
-void Graphics::setScreen(std::unique_ptr<Screen> screen) { screens.push(std::move(screen)); }
-
-void Graphics::screenBack() {
-	if(screens.size() > 0)
-		screens.pop();
 }