from .unit import Unit
from .bomb import Explosion
class Mine(Unit):
    def __init__(self, game, position=(0,0), id=None):
        super().__init__(game, position, id)
        self.speed = 1.0  # Mine doesn't move but needs speed for consistency
        self.armed = True  # Mine is active and ready to explode

    def move(self):
        """Mines don't move, but we need to check for collision with rats each frame."""
        pass
        
    def collisions(self):
        """Check if a rat steps on the mine (has position_before on mine's position)."""
        if not self.armed:
            return
            
        # Check for rats that have position_before on this mine's position
        for rat_unit in self.game.unit_positions_before.get(self.position, []):
            if hasattr(rat_unit, 'sex'):  # Check if it's a rat (rats have sex attribute)
                # Mine explodes and kills the rat
                self.explode(rat_unit)
                break
                
    def explode(self, victim_rat):
        """Mine explodes, killing the rat and destroying itself."""
        if not self.armed:
            return
            
        print("MINE EXPLOSION!")
        self.game.render_engine.play_sound("BOMB.WAV")

        # Kill the rat that stepped on the mine
        if victim_rat.id in self.game.units:
            victim_rat.die(score=5)
        
        # Remove the mine from the game
        self.die()
        
    def draw(self):
        """Draw the mine using the mine asset."""
        if not self.armed:
            return
            
        # Use mine asset
        image = self.game.assets["mine"]
        image_size = self.game.render_engine.get_image_size(image)
        
        # Center the mine in the cell
        x_pos = self.position[0] * self.game.cell_size + (self.game.cell_size - image_size[0]) // 2
        y_pos = self.position[1] * self.game.cell_size + (self.game.cell_size - image_size[1]) // 2
        
        self.game.render_engine.draw_image(x_pos, y_pos, image, anchor="nw", tag="unit")
        
    def die(self, score=None):
        """Remove mine from game and disarm it."""
        self.armed = False
        Explosion(self.game, self.position).draw()
        super().die(score)
