#!/usr/bin/env python
import pygame
from pygame.locals import *
import math

class Game:
    def __init__(self,width, height,fps):
        self._running = True
        self._surface = None
        self._clock = None
        self._width = width
        self._height = height
        self._fps = fps

    def on_init(self):
        pygame.init()
        self._surface = pygame.display.set_mode((self._width,self._height), pygame.HWSURFACE | pygame.DOUBLEBUF)
        self._clock = pygame.time.Clock()
        self._running = True
        return True

    def on_event(self,event):
        if event.type == pygame.QUIT:
            self._running = False

    def on_update(self, dtime):
        pass

    def on_render(self, surface):
        pass

    def on_draw(self):
        self.on_render(self._surface)
        pygame.display.flip()

    def on_cleanup(self):
        pygame.quit()

    def on_execute(self):
        if not self.on_init():
            self._running = False

        while self._running:
            self._clock.tick(self._fps)
            for event in pygame.event.get():
                self.on_event(event)
            self.on_update(1.0 / self._fps)
            self.on_draw()

        self.on_cleanup()