class GameScreen(Screen):
def __init__(self, save_dir):
'''
Initializes the main screen that gameplay takes place on
@param save_dir - The directory to be saved to
'''
self.sound = pygame.mixer.Sound(LASER)
self.tileMap = TileMap(save_dir)
self.crate_group = pygame.sprite.RenderPlain(*self.tileMap.tile.crates)
data = json.loads(open('{0}player.json'.format(save_dir)).read())
self.player = PlayerSprite(json=data)
self.button_group = pygame.sprite.RenderPlain(*self.tileMap.tile.buttons)
self.gate_group = pygame.sprite.RenderPlain(*self.tileMap.tile.gates)
self.keyboard_input = {
K_a: (KEYUP, KEYUP),
K_d: (KEYUP, KEYUP),
K_l: (KEYUP, KEYUP),
K_s: (KEYUP, KEYUP),
K_w: (KEYUP, KEYUP),
K_h: (KEYUP, KEYUP)
}
self.player_group = pygame.sprite.RenderClear(self.player)
self.enemies = self.tileMap.tile.enemies
self.boss = self.tileMap.tile.bosses
self.shooters = self.tileMap.tile.shooters + self.boss
enemies = self.enemies + self.shooters
self.enemy_group = pygame.sprite.RenderPlain(*enemies)
self.bullet_group = pygame.sprite.Group()
self.enemy_bullet_group = pygame.sprite.Group()
self.player_group.update()
self.enemy_group.update()
def render(self):
'''
Renders each of the groups to the main game screen
That includes tile, crates, button, bullets, enemies and the player
'''
self.tileMap.draw(State.screen)
self.crate_group.draw(State.screen)
self.button_group.draw(State.screen)
self.gate_group.draw(State.screen)
self.bullet_group.draw(State.screen)
self.enemy_bullet_group.draw(State.screen)
self.player_group.draw(State.screen)
self.enemy_group.draw(State.screen)
def reset_sprite_groups(self):
'''
Resets each of the sprite groups back to their original parameters
'''
self.crate_group = pygame.sprite.RenderPlain(*self.tileMap.tile.crates)
self.button_group = pygame.sprite.RenderPlain(*self.tileMap.tile.buttons)
self.gate_group = pygame.sprite.RenderPlain(*self.tileMap.tile.gates)
self.enemies = self.tileMap.tile.enemies
self.boss = self.tileMap.tile.bosses
self.shooters = self.tileMap.tile.shooters + self.boss
enemies = self.enemies + self.shooters
self.enemy_group = pygame.sprite.RenderPlain(*enemies)
def update(self, events):
'''
Updates everything in the game
This includes:
- checking to see if the final condition has been met
- handling keybour events
- Checking kill count
- Having each enemy call their act functions
- Checking collisions
- Updating each tile
- Checking the health of the player
'''
if State.boss_ready:
self.gate_group.empty()
self.tileMap.tile.gates = []
self.handle_keyboard(events)
self.player.handle_input(self.keyboard_input, self.tileMap.tile, self.bullet_group)
self.player.check_count()
for enemy in self.enemy_group:
enemy.act(self.tileMap.tile)
for shooter in self.shooters:
(px, py) = self.player.coords
if shooter.shouldShoot(px, py):
shooter.shoot(shooter, self.enemy_bullet_group)
self.check_collisions()
if(self.tileMap.update(self.player, self.enemy_group)):
self.bullet_group.update()
self.enemy_bullet_group.update()
self.player_group.update()
self.enemy_group.update()
else:
self.reset_sprite_groups()
if self.player.health <= 0:
self.player.lives -= 1
if self.player.lives <= 0:
State.push_screen(
GameOverScreen(
TileMap.width*TileMap.BLOCK_SIZE[0],
TileMap.height*TileMap.BLOCK_SIZE[1]
)
)
else:
self.tileMap.set_tile(self.player, 0, 0)
self.player.health = self.player.std_health
self.player.coords = (5, 5)
self.reset_sprite_groups()
def handle_keyboard(self, events):
'''
Function to handle the keyboard events and act accordingly
@param events - The list of events from the game
'''
self.keyboard_input = {
key: (new_val, new_val)
for key, (old_val, new_val)
in self.keyboard_input.items()
}
for event in events:
if not hasattr(event, 'key'):
continue
if event.type == KEYDOWN:
if event.key == K_p:
State.push_screen(PauseScreen(self.player, self.tileMap))
if event.key == K_i:
State.push_screen(InventoryScreen(self.player))
if event.key in self.keyboard_input:
(old_val, new_val) = self.keyboard_input[event.key]
self.keyboard_input[event.key] = (new_val, event.type)
def check_collisions(self):
'''
Checks the collisions between each of the sprite groups and removes them if health is 0
'''
player_crate_collisions = pygame.sprite.spritecollide(self.player, self.crate_group, False, self.did_player_crate_collide)
player_button_collisions = pygame.sprite.spritecollide(self.player, self.button_group, False, self.did_player_button_collide)
player_gate_collisions = pygame.sprite.spritecollide(self.player, self.gate_group, False, self.did_player_gate_collide)
player_enemy_collisions = pygame.sprite.spritecollide(self.player, self.enemy_group, False, self.player_enemy_collide)
for bullet in self.bullet_group:
collisions = pygame.sprite.spritecollide(bullet, self.crate_group, False, self.did_bullet_collide)
for crate in collisions:
self.bullet_group.remove(bullet)
collisions = pygame.sprite.spritecollide(bullet, self.enemy_group, False, self.did_bullet_collide)
for enemy in collisions:
self.bullet_group.remove(bullet)
if enemy.health <= 0:
self.player.increment_count()
self.enemy_group.remove(enemy)
try:
self.tileMap.tile.enemies.remove(enemy)
except ValueError:
try:
self.tileMap.tile.shooters.remove(enemy)
self.shooters.remove(enemy)
except ValueError:
self.tileMap.tile.bosses.remove(enemy)
self.victory()
(x, y) = bullet.coords
if y < 0 or y > TileMap.height - 1:
self.bullet_group.remove(bullet)
if x < 0 or x > TileMap.width - 1:
self.bullet_group.remove(bullet)
for bullet in self.enemy_bullet_group:
collisions = pygame.sprite.spritecollide(bullet, self.crate_group, False)
for crate in collisions:
self.enemy_bullet_group.remove(bullet)
collisions = pygame.sprite.spritecollide(bullet, self.player_group, False)
if collisions:
self.enemy_bullet_group.remove(bullet)
self.player.takeHit(1)
(x, y) = bullet.coords
if y < 0 or y > TileMap.height - 1:
self.enemy_bullet_group.remove(bullet)
if x < 0 or x > TileMap.width - 1:
self.enemy_bullet_group.remove(bullet)
def player_enemy_collide(self, player, enemy):
'''
Function to test if a player and enemy have collided
@param player - The player sprite
@param enemy - The enemy that might have collided with the player
'''
if player.coords == enemy.coords:
self.player.takeHit(1)
self.throwBack(player, enemy.direction)
return True
else:
return False
def throwBack(self, entity, direction):
'''
Throws the player/enemy back if they collide with each other
@param entity - The entity to be thrown back
@param direction - The direction the entity will be thrown
'''
(ox, oy) = entity.coords
entity.move(direction, self.tileMap.tile)
(x, y) = entity.coords
entity.isOutOfBounds(
TileMap.width,
TileMap.height,
TileMap.TILE_LEFT,
TileMap.TILE_RIGHT,
TileMap.TILE_UP,
TileMap.TILE_DOWN
)
(px, py) = entity.coords
if (px, py) != (x, y):
entity.coords = (ox, oy)
oppDir = self.oppositeDirection(direction)
entity.move(oppDir, self.tileMap.tile)
entity.move(oppDir, self.tileMap.tile)
else:
entity.move(direction, self.tileMap.tile)
entity.isOutOfBounds(
TileMap.width,
TileMap.height,
TileMap.TILE_LEFT,
TileMap.TILE_RIGHT,
TileMap.TILE_UP,
TileMap.TILE_DOWN
)
def oppositeDirection(self, direction):
'''
Changes the direction to the opposite one
@param direction - The direction currently being faced
'''
if direction == Direction.up:
return Direction.down
elif direction == Direction.down:
return Direction.up
elif direction == Direction.left:
return Direction.right
else:
return Direction.left
def did_player_crate_collide(self, player_sprite, crate_sprite):
'''
Checks to see if a player and crate have collided and if it has an item in it
it will be collected
@param player_sprite - The player's sprite
@param crate_sprite - The crate's sprite
'''
if player_sprite.coords == crate_sprite.coords:
crate_sprite.takeHit(1)
self.player.takeItem(crate_sprite)
return True
else:
return False
def did_bullet_collide(self, sprite_one, crate_sprite):
'''
Checks to see if a bullet collided with a crate
@param sprite_one - The bullet's sprite
@param crate_sprite - The crate's sprite
'''
if sprite_one.coords == crate_sprite.coords:
crate_sprite.takeHit(self.player.laser)
return True
else:
return False
def did_player_button_collide(self, player_sprite, button_sprite):
'''
Checks to see if the button and player have collided
@param player_sprite - The player's sprite
@param button_sprite - THe button's sprite
'''
if player_sprite.coords == button_sprite.coords:
if self.boss:
self.enemy_group.remove(self.boss[0])
self.shooters = []
self.victory()
return True
else:
return False
def did_player_gate_collide(self, player_sprite, gate_sprite):
'''
Checks to see if player and gate have collided
@param player_sprite - The player's sprite
@param gate_sprite - The gate's sprite
'''
if player_sprite.coords == gate_sprite.coords:
self.throwBack(player_sprite, self.oppositeDirection(player_sprite.direction))
return True
else:
return False
def victory(self):
'''
Once the victory condition has been met, it will push the victory screen to state
'''
State.push_screen(
VictoryScreen(
TileMap.width*TileMap.BLOCK_SIZE[0],
TileMap.height*TileMap.BLOCK_SIZE[1]
)
)
