class AnimatedSprite(Sprite):
def __init__(self, image_path, sprite_size, frames = 1, scale = 1, animation_speed = 10, start_frame = 0):
super().__init__()
self._sheet, self._sheet_rect = load_image(image_path, scale)
self.scale = scale
self.sprite_size = sprite_size
self.scaled_size = sprite_size * scale
self.rect = Rect(0, 0, sprite_size * scale, sprite_size * scale)
self.animation_frame = start_frame
self.animation_max = frames - 1
self.animation_speed = animation_speed
self.animation_timer = Timer()
def render(self, surface, coords = None):
coords = coords if coords != None else self.rect
surface.blit(self._sheet, coords, (self.scaled_size * self.animation_frame, 0, self.scaled_size, self.scaled_size))
def update(self):
if self.animation_timer.has_passed(self.animation_speed):
self.animation_frame = 0 if self.animation_frame == self.animation_max else self.animation_frame + 1
class Player(AnimatedSprite):
def __init__(self, scene):
super().__init__("player.png", 32, 4, 3, 100)
self.scene = scene
self.game = self.scene.game
self.game.events.register_listener('PLAYER_HIT', self.on_hit)
self.thrust = .8
self.speed_max = 15
self.speed_decay = .95
self.movement_clamp = 10
self.velocity = pygame.math.Vector2(0, 0)
self.shoot_delay = 250
self.shoot_timer = Timer()
self.shoot_cooldown = False
self.health = 100
self.weapon_power = 1
def on_hit(self, event):
self.health = max(0, self.health - event.damage)
self.game.events.broadcast('PLAYER_HEALTH_UPDATE', {})
if self.health <= 0:
self.game.events.broadcast('PLAYER_DESTROYED', {})
def update(self):
super().update()
self.move()
self.shoot()
def move(self):
if self.game.input.key(K_LEFT):
self.velocity.x -= self.thrust
elif self.game.input.key(K_RIGHT):
self.velocity.x += self.thrust
else:
self.velocity.x *= self.speed_decay
speed = self.velocity.length()
if speed > self.speed_max:
self.velocity.x *= self.speed_max / speed
self.velocity.y *= self.speed_max / speed
elif (self.velocity.x > -.5
and self.velocity.x < 0) or (self.velocity.x < .5
and self.velocity.x > 0):
self.velocity.x = 0
if (self.rect.left - self.movement_clamp < 0 and self.velocity.x < 0
or self.rect.left > self.game.get_width() - self.rect.width -
self.movement_clamp and self.velocity.x > 0):
self.velocity.x = 0
self.rect.move_ip(self.velocity.x, self.velocity.y)
def shoot(self):
if self.shoot_cooldown and self.shoot_timer.has_passed(
self.shoot_delay):
self.shoot_cooldown = False
if self.game.input.key(K_SPACE) and not self.shoot_cooldown:
self.scene.spawn_projectile(
self.scene.projectiles,
Laser(self.rect, power=self.weapon_power))
self.shoot_cooldown = True
self.shoot_timer.restart()
