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import pygame
from typing_extensions import override
from direction import DIRECTION
import math
from ghost import Ghost
class Pinky(Ghost):
def __init__(self, sprite_sheet, x, y):
super().__init__(sprite_sheet,"pink", x, y)
def get_four_tiles_ahead_of_pacman(self, pacman):
if pacman.direction == DIRECTION.UP:
new_target = (pacman.x - 30 * 4, pacman.y - 30 * 4)
if self.in_bounds(new_target):
return new_target
else:
return (pacman.x, pacman.y)
elif pacman.direction == DIRECTION.DOWN:
new_target = (pacman.x, pacman.y + 30 * 4)
if self.in_bounds(new_target):
return new_target
else:
return (pacman.x, pacman.y)
elif pacman.direction == DIRECTION.RIGHT:
new_target = (pacman.x + 30 * 4, pacman.y)
if self.in_bounds(new_target):
return new_target
else:
return (pacman.x, pacman.y)
elif pacman.direction == DIRECTION.LEFT:
new_target = (pacman.x - 30 * 4, pacman.y)
if self.in_bounds(new_target):
return new_target
else:
return (pacman.x, pacman.y)
@override
def get_next_move(self, target, maze, screen):
dx = [1, 0, -1, 0]
dy = [0, 1, 0, -1]
ret = len(dx) * [math.inf]
forbidden = 0
if self.last_move == 0:
forbidden = 2
if self.last_move == 1:
forbidden = 3
if self.last_move == 2:
forbidden = 0
if self.last_move == 3:
forbidden = 1
new_target = self.get_four_tiles_ahead_of_pacman(target)
pygame.draw.circle(screen, self.color, (new_target[0], new_target[1]), 15)
for i in range(len(dx)):
if i != forbidden:
nx = self.x + dx[i] * self.speed
ny = self.y + dy[i] * self.speed
if self.check_collision(nx, ny, 30, 30, maze):
ret[i] = self.heuristic((nx, ny), new_target[0], new_target[1])
min_idx = ret.index(min(ret))
return min_idx
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