def dash(
sprite: arcade.Sprite,
dir_x: int,
dir_y: int,
collide_with: arcade.SpriteList,
) -> None:
"""Move sprite until it reaches something."""
sprite.bottom += 1
prev_x = sprite.left
prev_y = sprite.bottom
default_x = sprite.left
default_y = sprite.bottom
for x, y in zip_longest(
range(floor(sprite.left), floor(sprite.left + dir_x),
weird_sign(dir_x)),
range(floor(sprite.bottom), floor(sprite.bottom + dir_y),
weird_sign(dir_y)),
):
sprite.left = x if x else prev_x
sprite.bottom = y if y else prev_y
if sprite.collides_with_list(collide_with):
sprite.left = prev_x
sprite.bottom = prev_y
break
if x:
prev_x = x
if y:
prev_y = y
def _move_sprite(moving_sprite: arcade.Sprite, platforms: arcade.SpriteList,
dt):
if moving_sprite.bottom <= 0 and moving_sprite.change_y < 0:
moving_sprite.change_y = 0
moving_sprite.bottom = 0
moving_sprite.center_y += moving_sprite.change_y * moving_sprite.speed_multiplier * (
dt / (1 / 60))
hit_list_y = arcade.check_for_collision_with_list(moving_sprite, platforms)
for platform in hit_list_y:
if platform.color != moving_sprite.current_background:
if moving_sprite.change_y > 0:
if not platform.change_y:
moving_sprite.top = platform.bottom
moving_sprite.change_y = 0
elif moving_sprite.change_y < 0:
moving_sprite.bottom = platform.top
if platform.change_y:
if platform.change_y < 0:
moving_sprite.center_y -= 2
moving_sprite.change_y = -3
else:
moving_sprite.change_y = 0
else:
moving_sprite.change_y = 0
if platform.change_x:
moving_sprite.momentum = platform.change_x
moving_sprite.center_x += (moving_sprite.change_x + moving_sprite.momentum
) * moving_sprite.speed_multiplier * (dt /
(1 / 60))
hit_list_x = arcade.check_for_collision_with_list(moving_sprite, platforms)
for platform in hit_list_x:
if platform.color != moving_sprite.current_background and platform not in hit_list_y:
if moving_sprite.change_x > 0 and not platform.change_x:
moving_sprite.right = platform.left
elif moving_sprite.change_x < 0 and not platform.change_x:
moving_sprite.left = platform.right
if platform.change_y:
if platform.change_y >= 0:
moving_sprite.change_x = 0
else:
moving_sprite.change_x = 0
if len(hit_list_y) <= 0 and moving_sprite.momentum != 0:
moving_sprite.change_x += moving_sprite.momentum
moving_sprite.momentum = 0
def _move_sprite(moving_sprite: Sprite, walls: SpriteList, ramp_up: bool):
# Rotate
moving_sprite.angle += moving_sprite.change_angle
hit_list = check_for_collision_with_list(moving_sprite, walls)
if len(hit_list) > 0:
# Resolve any collisions by this weird kludge
_circular_check(moving_sprite, walls)
# --- Move in the y direction
moving_sprite.center_y += moving_sprite.change_y
# Check for wall hit
hit_list_x = check_for_collision_with_list(moving_sprite, walls)
# print(f"Post-y move {hit_list_x}")
complete_hit_list = hit_list_x
# If we hit a wall, move so the edges are at the same point
if len(hit_list_x) > 0:
if moving_sprite.change_y > 0:
while len(check_for_collision_with_list(moving_sprite, walls)) > 0:
moving_sprite.center_y -= 1
# print(f"Spot X ({self.player_sprite.center_x}, {self.player_sprite.center_y})"
# f" {self.player_sprite.change_y}")
elif moving_sprite.change_y < 0:
# Reset number of jumps
for item in hit_list_x:
while check_for_collision(moving_sprite, item):
# self.player_sprite.bottom = item.top <- Doesn't work for ramps
moving_sprite.center_y += 0.25
if item.change_x != 0:
moving_sprite.center_x += item.change_x
# print(f"Spot Y ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
else:
pass
# TODO: The code below can't execute, as "item" doesn't
# exist. In theory, this condition should never be arrived at.
# Collision while player wasn't moving, most likely
# moving platform.
# if self.player_sprite.center_y >= item.center_y:
# self.player_sprite.bottom = item.top
# else:
# self.player_sprite.top = item.bottom
moving_sprite.change_y = min(0.0, hit_list_x[0].change_y)
# print(f"Spot D ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
moving_sprite.center_y = round(moving_sprite.center_y, 2)
# print(f"Spot Q ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
# --- Move in the x direction
moving_sprite.center_x += moving_sprite.change_x
check_again = True
while check_again:
check_again = False
# Check for wall hit
hit_list_y = check_for_collision_with_list(moving_sprite, walls)
complete_hit_list = hit_list_x
for sprite in hit_list_y:
if sprite not in complete_hit_list:
complete_hit_list.append(sprite)
# If we hit a wall, move so the edges are at the same point
if len(hit_list_y) > 0:
change_x = moving_sprite.change_x
if change_x > 0:
if ramp_up:
for _ in hit_list_y:
# print(f"Spot 1 ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
# See if we can "run up" a ramp
moving_sprite.center_y += change_x
if len(
check_for_collision_with_list(
moving_sprite, walls)) > 0:
# No, ramp run-up doesn't work.
moving_sprite.center_y -= change_x
moving_sprite.center_x -= 1
# print(f"Spot R ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
check_again = True
break
# else:
# print("Run up ok 1")
# print(f"Spot 2 ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
else:
while len(
check_for_collision_with_list(
moving_sprite, walls)) > 0:
moving_sprite.center_x -= 1
elif change_x < 0:
if ramp_up:
for item in hit_list_y:
# See if we can "run up" a ramp
moving_sprite.center_y -= change_x
if len(
check_for_collision_with_list(
moving_sprite, walls)) > 0:
# Can't run up the ramp, reverse
moving_sprite.center_y += change_x
moving_sprite.left = max(item.right,
moving_sprite.left)
# print(f"Reverse 1 {item.right}, {self.player_sprite.left}")
# Ok, if we were shoved back to the right, we need to check this whole thing again.
check_again = True
break
# print(f"Spot 4 ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
else:
while len(
check_for_collision_with_list(
moving_sprite, walls)) > 0:
moving_sprite.center_x += 1
else:
print(
"Error, x collision while player wasn't moving.\n"
"Make sure you aren't calling multiple updates, like "
"a physics engine update and an all sprites list update.")
# print(f"Spot E ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
return complete_hit_list