initial template changes, xmake integration

Engine.h

@@ -1,40 +0,0 @@
-#pragma once
-
-//
-//  DO NOT MODIFY THIS FILE
-//
-
-#include <stdint.h>
-
-#define SCREEN_WIDTH 1024
-#define SCREEN_HEIGHT 768
-
-// backbuffer
-extern uint32_t buffer[SCREEN_HEIGHT][SCREEN_WIDTH];
-
-enum
-{
-  VK_ESCAPE,
-  VK_SPACE,
-  VK_LEFT,
-  VK_UP,
-  VK_RIGHT,
-  VK_DOWN,
-  VK_RETURN,
-
-  VK__COUNT
-};
-
-// VK_SPACE, VK_RIGHT, VK_LEFT, VK_UP, VK_DOWN, etc.
-bool is_key_pressed(int button_vk_code);
-bool is_mouse_button_pressed(int mouse_button);
-int get_cursor_x();
-int get_cursor_y();
-
-void initialize();
-void finalize();
-
-void act(float dt);
-void draw();
-
-void schedule_quit_game();