from kivy.uix.widget import Widget
from math import sqrt

def money_rate(happiness):
    rate = sqrt(1 / happiness)
    return rate

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('.')