import pygame
from constants import PLAYER_RADIUS, PLAYER_TURN_SPEED, PLAYER_SPEED, PLAYER_SHOT_SPEED, PLAYER_SHOOT_COOLDOWN
from circleshape import CircleShape
from shot import Shot

class Player(CircleShape):
    def __init__(self, x, y):
        super().__init__(x, y, PLAYER_RADIUS)
        self.rotation = 0
        self.shot_cooldown_counter = 0

    def draw(self, screen):
        pygame.draw.polygon(screen, "white", self.triangle(), 2)

    def update(self, dt):
        self.shot_cooldown_counter -= dt

        keys = pygame.key.get_pressed()

        if keys[pygame.K_a]:
            self.rotate(-dt)

        if keys[pygame.K_d]:
            self.rotate(dt)

        if keys[pygame.K_w]:
            self.move(dt)

        if keys[pygame.K_s]:
            self.move(-dt)

        if keys[pygame.K_SPACE]:
            self.shoot()


    def rotate(self, dt):
        self.rotation += PLAYER_TURN_SPEED * dt

    def move(self, dt):
        forward = pygame.Vector2(0, 1).rotate(self.rotation)
        self.position += forward * PLAYER_SPEED * dt

    def shoot(self):
        if self.shot_cooldown_counter > 0:
            return 
        shot = Shot(self.position[0], self.position[1])
        shot.velocity = pygame.Vector2(0, 1).rotate(self.rotation) * PLAYER_SHOT_SPEED
        self.shot_cooldown_counter = PLAYER_SHOOT_COOLDOWN


    def triangle(self):
        forward = pygame.Vector2(0, 1).rotate(self.rotation)
        right = pygame.Vector2(0, 1).rotate(self.rotation + 90) * self.radius / 1.5
        a = self.position + forward * self.radius
        b = self.position - forward * self.radius - right
        c = self.position - forward * self.radius + right
        return [a, b, c]