def __init__(self, pos, bounds, direction, speed, next_coord_function):
""" Create a new Creep.
pos:
A vec2d or a pair specifying the initial position
of the creep on the screen.
direction:
A vec2d or a pair specifying the initial direction
of the creep. Must have an angle that is a
multiple of 45 degres.
speed:
Creep speed, in pixels/millisecond (px/ms)
"""
pygame.sprite.Sprite.__init__(self)
self.speed = int(speed)
self.rect = bounds
surface = pygame.Surface((self.rect.w-1, self.rect.h-1))
surface.fill((0,0,0,0))
pygame.draw.circle(surface, (0,0,255),((self.rect.w-1)/2+1,(self.rect.h-1)/2+1),
self.rect.w/2-1)
surface.set_colorkey((0,0,0))
self.image = surface
# self.image = pygame.transform.rotate(pygame.image.load("..\img\creep_0.png"), -90)
# A vector specifying the creep's position on the screen
self.pos = v(pos)
self.prev_pos = v(self.pos)
# The direction is a normalized vector
self.direction = v(direction).normalized()
self.next_on_path = next_coord_function
def __init__(self, screen, bounds, pos):
pygame.sprite.Sprite.__init__(self)
self.rect = bounds
self.image = pygame.Surface((self.rect.w-1, self.rect.h-1))
self.image.fill((50, 50, 50))
self.image.set_alpha(100)
# A vector specifying the block position on the screen
self.pos = v(pos)
def __init__(self, screen, bounds, pos):
pygame.sprite.Sprite.__init__(self)
self.rect = bounds
self.image = pygame.Surface((self.rect.w - 1, self.rect.h - 1))
self.image.fill((50, 50, 50))
self.image.set_alpha(100)
# A vector specifying the block position on the screen
self.pos = v(pos)
def __init__(self):
# initialize screen
pygame.init()
title = "Tower Defence"
version = "0.01"
self.screen_size = (FIELD_RECT.w,FIELD_RECT.h)
self.screen = pygame.display.set_mode(self.screen_size)
pygame.display.set_caption(title+" v"+version)
icon = pygame.image.load("../img/icon.png")
pygame.display.set_icon(icon)
# background
self.background = pygame.Surface(self.screen_size).convert()
self.background.fill((100,100,100))
self.screen.blit(self.background, (0,0))
# the field (playable area)
self.field_rect = FIELD_RECT
self.field_size = FIELD_RECT.bottomright
self.tile_size = TILE_SIZE
self.field = Field()
self.screen.blit(self.field, (0,0))
# clock
self.clock = pygame.time.Clock()
self.game_over = False
self.round_over = False
self.paused = False
self.creeps = pygame.sprite.Group()
self.towers = pygame.sprite.Group()
self.player_towers = pygame.sprite.Group()
# contains all sprites in this game
self.sprites = pygame.sprite.RenderUpdates()
self._create_blocks()
self.player = Player()
self.player.money = randint(5,20)
self.next = (0,0)
self._create_random_towers()
self.building_mode = False
self.build_time = 0
self.time = 0
self.message_text = ""
rect = pygame.Rect(self.field.bounds.left+1*self.tile_size,
self.field.bounds.top+1*self.tile_size,
2*self.tile_size, 2*self.tile_size)
self.building_marker = Tower(rect, v(rect.topleft),
(255,255,200))
self.sprites.add(self.building_marker)
pygame.display.flip()
def __init__(self, bounds, pos, color):
pygame.sprite.Sprite.__init__(self)
self.rect = bounds
surface = pygame.Surface((self.rect.w-1, self.rect.h-1))
self.image = pygame.Surface((self.rect.w-1, self.rect.h-1))
self.image.fill(color)
self.image.set_alpha(100)
# A vector specifying the tower's position on the screen
self.pos = v(pos)
def _compute_direction(self, time_passed):
""" Finds out where to go
"""
coord = xy2coord(self.pos)
x_mid, y_mid = coord2xy_mid(coord)
# if ((x_mid - self.pos.x) * (x_mid - self.prev_pos.x) < 0 or
# (y_mid - self.pos.y) * (y_mid - self.prev_pos.y) < 0):
if self.pos == (x_mid,y_mid):
next_coord = self.next_on_path(coord)
self.direction = v(next_coord[1] - coord[1],
next_coord[0] - coord[0]).normalized()
def __init__(self, bounds, pos, color):
pygame.sprite.Sprite.__init__(self)
self.rect = bounds
surface = pygame.Surface((self.rect.w - 1, self.rect.h - 1))
self.image = pygame.Surface((self.rect.w - 1, self.rect.h - 1))
self.image.fill(color)
self.image.set_alpha(100)
# A vector specifying the tower's position on the screen
self.pos = v(pos)
def _compute_direction(self, time_passed):
""" Finds out where to go
"""
coord = xy2coord(self.pos)
x_mid, y_mid = coord2xy_mid(coord)
# if ((x_mid - self.pos.x) * (x_mid - self.prev_pos.x) < 0 or
# (y_mid - self.pos.y) * (y_mid - self.prev_pos.y) < 0):
if self.pos == (x_mid, y_mid):
next_coord = self.next_on_path(coord)
self.direction = v(next_coord[1] - coord[1],
next_coord[0] - coord[0]).normalized()
def _create_blocks(self):
rows = self.field_size[1]/self.tile_size
cols = self.field_size[0]/self.tile_size
for x in range(1,9)+range(11,cols-1):
rect = pygame.Rect(self.field.bounds.left+x*self.tile_size,
self.field.bounds.top,
self.tile_size, self.tile_size)
block = Block(self.screen, rect, v(rect.topleft))
self.sprites.add(block)
coord = xy2coord((self.field.bounds.left+x*self.tile_size,
self.field.bounds.top))
self.field.block(coord)
rect = pygame.Rect(self.field.bounds.left+x*self.tile_size,
self.field.bounds.bottom-self.tile_size,
self.tile_size, self.tile_size)
block = Block(self.screen, rect, v(rect.topleft))
self.sprites.add(block)
coord = xy2coord((self.field.bounds.left+x*self.tile_size,
self.field.bounds.bottom-self.tile_size))
self.field.block(coord)
for y in range(rows):
rect = pygame.Rect(self.field.bounds.left,
self.field.bounds.top+y*self.tile_size,
self.tile_size, self.tile_size)
block = Block(self.screen, rect, v(rect.topleft))
self.sprites.add(block)
coord = xy2coord((self.field.bounds.left,
self.field.bounds.top+y*self.tile_size))
self.field.block(coord)
rect = pygame.Rect(self.field.bounds.right-self.tile_size,
self.field.bounds.top+y*self.tile_size,
self.tile_size, self.tile_size)
block = Block(self.screen, rect, v(rect.topleft))
self.sprites.add(block)
coord = xy2coord((self.field.bounds.right-self.tile_size,
self.field.bounds.top+y*self.tile_size))
self.field.block(coord)
def update(self, time_passed):
""" Update the creep.
time_passed:
The time passed (in ms) since the previous update.
"""
# Maybe it's time to change the direction ?
#
self._compute_direction(time_passed)
# Make the creep image point in the correct direction.
# Note that two images are used, one for diagonals
# and one for horizontals/verticals.
#
# round() on the angle is necessary, to make it
# exact, despite small deviations that may result from
# floating-point calculations
#
# if int(round(self.direction.angle)) % 90 == 45:
# self.image = pygame.transform.rotate(self.base_image_45,
# -(self.direction.angle + 45))
# elif int(round(self.direction.angle)) % 90 == 0:
# self.image = pygame.transform.rotate(self.base_image_0,
# -self.direction.angle)
# else:
# assert False
# Compute and apply the displacement to the position
# vector. The displacement is a vector, having the angle
# of self.direction (which is normalized to not affect
# the magnitude of the displacement)
#
displacement = v(self.direction.x * self.speed,
self.direction.y * self.speed)
self.prev_pos = v(self.pos)
self.pos += displacement
self.rect.center = self.pos
def update(self, time_passed):
""" Update the creep.
time_passed:
The time passed (in ms) since the previous update.
"""
# Maybe it's time to change the direction ?
#
self._compute_direction(time_passed)
# Make the creep image point in the correct direction.
# Note that two images are used, one for diagonals
# and one for horizontals/verticals.
#
# round() on the angle is necessary, to make it
# exact, despite small deviations that may result from
# floating-point calculations
#
# if int(round(self.direction.angle)) % 90 == 45:
# self.image = pygame.transform.rotate(self.base_image_45,
# -(self.direction.angle + 45))
# elif int(round(self.direction.angle)) % 90 == 0:
# self.image = pygame.transform.rotate(self.base_image_0,
# -self.direction.angle)
# else:
# assert False
# Compute and apply the displacement to the position
# vector. The displacement is a vector, having the angle
# of self.direction (which is normalized to not affect
# the magnitude of the displacement)
#
displacement = v(self.direction.x * self.speed,
self.direction.y * self.speed)
self.prev_pos = v(self.pos)
self.pos += displacement
self.rect.center = self.pos
def __init__(self, pos, bounds, direction, speed, next_coord_function):
""" Create a new Creep.
pos:
A vec2d or a pair specifying the initial position
of the creep on the screen.
direction:
A vec2d or a pair specifying the initial direction
of the creep. Must have an angle that is a
multiple of 45 degres.
speed:
Creep speed, in pixels/millisecond (px/ms)
"""
pygame.sprite.Sprite.__init__(self)
self.speed = int(speed)
self.rect = bounds
surface = pygame.Surface((self.rect.w - 1, self.rect.h - 1))
surface.fill((0, 0, 0, 0))
pygame.draw.circle(surface, (0, 0, 255), ((self.rect.w - 1) / 2 + 1,
(self.rect.h - 1) / 2 + 1),
self.rect.w / 2 - 1)
surface.set_colorkey((0, 0, 0))
self.image = surface
# self.image = pygame.transform.rotate(pygame.image.load("..\img\creep_0.png"), -90)
# A vector specifying the creep's position on the screen
self.pos = v(pos)
self.prev_pos = v(self.pos)
# The direction is a normalized vector
self.direction = v(direction).normalized()
self.next_on_path = next_coord_function
def build_tower(self, pos, color, group):
row,col = xy2coord(pos)
#@todo: center tower over cursor?
# pos = pos[0]-self.tile_size/2,pos[1]-self.tile_size/2
# row,col = xy2coord(pos)
rect = pygame.Rect(self.field.bounds.left+col*self.tile_size,
self.field.bounds.top+row*self.tile_size,
2*self.tile_size, 2*self.tile_size)
buildable, message = self._is_buildable(row,col)
if buildable:
tower = Tower(rect, v(rect.topleft), color)
group.add(tower)
self.sprites.add(tower)
return (buildable,message)
