from random import randrange

from kivy.app import App
from kivy.clock import Clock

from kivy.core.window import Window


from kivy.uix.label import Label
from kivy.uix.widget import Widget

from kivy.graphics import Rectangle

def collides(rect1, rect2):
    r1x = rect1[0][0]
    r1y = rect1[0][1]
    r2x = rect2[0][0]
    r2y = rect2[0][1]
    r1w = rect1[1][0]
    r1h = rect1[1][1]
    r2w = rect2[1][0]
    r2h = rect2[1][1]
    
    if (r1x < r2x + r2w and r1x + r1w > r2x and r1y < r2y + r2h and r1y + r1h > r2y):
        return True
    else:
        return False

class GameWidget(Widget):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self._keyboard = Window.request_keyboard(self._on_keyboard_closed, self)
        self._keyboard.bind(on_key_down=self._on_key_down)
        self._keyboard.bind(on_key_up=self._on_key_up)
        
        self.nearbyobj = []
        
        #for obj in range(10):
        
        with self.canvas:
            self.player = Rectangle(source="assets/images/player.png", pos=(0,0), size=(100,100))
            self.enemy = Rectangle(pos=(300,300), size=(80,80))
        
        self.keysPressed = set()
        
        Clock.schedule_interval(self.move_step,0)
        
    def _on_keyboard_closed(self):
        self._keyboard.unbind(on_key_down=self._on_key_down)
        self._keyboard.unbind(on_key_up=self._on_key_up)
        self._keyboard = None
        
    def _on_key_down(self, keyboard, keycode, text, modifiers):
        self.keysPressed.add(text)
        
    def _on_key_up(self,keyboard,keycode):
        text = keycode[1]
        if text in self.keysPressed:
            self.keysPressed.remove(text)
            
    def move_step(self,dt):
        currentx = self.player.pos[0]
        currenty = self.player.pos[1]
        
        step_size = 200 * dt
        
        if "w" in self.keysPressed:
            currenty += step_size
        if "s" in self.keysPressed:
            currenty -= step_size
        if "a" in self.keysPressed:
            currentx -= step_size
        if "d" in self.keysPressed:
            currentx += step_size

        self.player.pos = (currentx, currenty)
        
        if collides((self.player.pos,self.player.size),(self.enemy.pos,self.size)):
            print("X")
        else:
            print('.')

class GlobalForest(App):
    def build(self):
        #return Label(text='Hello world')
        return GameWidget()

if __name__ == '__main__':
    app = GlobalForest()
    app.run()