我正在编写一个基于网格的游戏，其中Character类的实例可以使用其移动（方向）方法移动。
class Character(object): #can move around and do cool stuff
def __init__(self, name, HP, internal_column, internal_row):
self.name = name
self.HP = HP
self.internal_column = internal_column
self.internal_row = internal_row
moves_left = 15
direction = "N"
def move(self, direction): #how characters move around
if self.moves_left == 0:
print("No more moves left")
return
elif direction == "N":
self.internal_row -= 1
self.direction = "N"
elif direction == "W":
self.internal_column -= 1
self.direction = "W"
elif direction == "E":
self.internal_column += 1
self.direction = "E"
elif direction == "S":
self.internal_row += 1
self.direction = "S"
self.moves_left = self.moves_left - 1
方向变量跟踪角色指向的位置。我使用PyGame绘制图形：
for row in range(MAPSIZE): # Drawing grid
for column in range(MAPSIZE):
for i in range(0, len(Map.Grid[column][row])):
Color = WHITE
if len(Map.can_move) > 0: # Creating colored area around character showing his move range
if (math.sqrt((Map.can_move[0].internal_column - column)**2 + (Map.can_move[0].internal_row - row)**2)) <= Map.can_move[0].moves_left:
Color = MOVECOLOR
if len(Map.Grid[column][row]) > 1:
Color = RED
if Map.Grid[column][row][i].name == "Tree":
Color = GREEN
if str(Map.Grid[column][row][i].__class__.__name__) == "Character":
Color = BROWN
pygame.draw.rect(Screen, Color, [(TILEMARGIN + TILEWIDTH) * column + TILEMARGIN,
(TILEMARGIN + TILEHEIGHT) * row + TILEMARGIN,
TILEWIDTH,
TILEHEIGHT])
以下是完整代码，其中定义了常量和Map类：
import random
import pygame
import math
pygame.init()
Clock = pygame.time.Clock()
Screen = pygame.display.set_mode([650, 650])
DONE = False
MAPSIZE = 25 #how many tiles
TILEWIDTH = 20 #pixel size of tile
TILEHEIGHT = 20
TILEMARGIN = 4
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)
BLUE = (0, 0, 255)
BROWN = (123, 123, 0)
MOVECOLOR = (150, 250, 150)
KeyLookup = {
pygame.K_LEFT: "W",
pygame.K_RIGHT: "E",
pygame.K_DOWN: "S",
pygame.K_UP: "N"
}
class MapTile(object): #The main class for stationary things that inhabit the grid ... grass, trees, rocks and stuff.
def __init__(self, name, internal_column, internal_row):
self.name = name
self.internal_column = internal_column
self.internal_row = internal_row
class Character(object): #can move around and do cool stuff
def __init__(self, name, HP, internal_column, internal_row):
self.name = name
self.HP = HP
self.internal_column = internal_column
self.internal_row = internal_row
moves_left = 15
direction = "N"
def move(self, direction): #how characters move around
if self.collision_check(direction) == True:
print("Collision")
return
if self.moves_left == 0:
print("No more moves left")
return
elif direction == "N":
self.internal_row -= 1
self.direction = "N"
elif direction == "W":
self.internal_column -= 1
self.direction = "W"
elif direction == "E":
self.internal_column += 1
self.direction = "E"
elif direction == "S":
self.internal_row += 1
self.direction = "S"
self.moves_left = self.moves_left - 1
def collision_check(self, direction):
if direction == "N":
if self.internal_row == 0:
return True
if len(Map.Grid[self.internal_column][(self.internal_row)-1]) > 1:
return True
elif direction == "W":
if self.internal_column == 0:
return True
if len(Map.Grid[self.internal_column-1][(self.internal_row)]) > 1:
return True
elif direction == "E":
if self.internal_column == MAPSIZE-1:
return True
if len(Map.Grid[self.internal_column+1][(self.internal_row)]) > 1:
return True
elif direction == "S":
if self.internal_row == MAPSIZE-1:
return True
if len(Map.Grid[self.internal_column][(self.internal_row)+1]) > 1:
return True
return False
def attack(self, direction):
if self.collision_check(direction) == True:
print("attacked")
class Goblin(Character):
def __init__(self):
Character.__init__(self, "Goblin", random.randint(15,20), random.randint(0,MAPSIZE-1), random.randint(0,MAPSIZE-1))
def random_move(self):
i = random.randint(0,3)
if i == 0:
self.move("N")
elif i == 1:
self.move("S")
elif i == 2:
self.move("W")
elif i == 3:
self.move("E")
self.moves_left = 10
class Archer(Character):
def __init__(self):
Character.__init__(self, "Archer", random.randint(15,20), random.randint(0,MAPSIZE-1), random.randint(0,MAPSIZE-1))
class Warrior(Character):
def __init__(self):
Character.__init__(self, "Warrior", random.randint(15,20), random.randint(0,MAPSIZE-1), random.randint(0,MAPSIZE-1))
class Scout(Character):
def __init__(self):
Character.__init__(self, "Scout", random.randint(15,20), random.randint(0,MAPSIZE-1), random.randint(0,MAPSIZE-1))
class Rogue(Character):
def __init__(self):
Character.__init__(self, "Rogue", random.randint(15,20), random.randint(0,MAPSIZE-1), random.randint(0,MAPSIZE-1))
class Wizard(Character):
def __init__(self):
Character.__init__(self, "Wizard", random.randint(15,20), random.randint(0,MAPSIZE-1), random.randint(0,MAPSIZE-1))
class Map(object): #The main class; where the action happens
global MAPSIZE
wild_characters = []
can_move = []
no_moves = []
Grid = []
for row in range(MAPSIZE): # Creating grid
Grid.append([])
for column in range(MAPSIZE):
Grid[row].append([])
for row in range(MAPSIZE): #Filling grid with grass
for column in range(MAPSIZE):
TempTile = MapTile("Grass", column, row)
Grid[column][row].append(TempTile)
for row in range(MAPSIZE): #Putting some rocks near the top
for column in range(MAPSIZE):
TempTile = MapTile("Rock", column, row)
if row == 1:
Grid[column][row].append(TempTile)
for i in range(10): #Trees in random places
random_row = random.randint(0, MAPSIZE - 1)
random_column = random.randint(0, MAPSIZE - 1)
TempTile = MapTile("Tree", random_column, random_row)
Grid[random_column][random_row].append(TempTile)
def generate_hero(self): #Generate a character and place it randomly
random_row = random.randint(0, MAPSIZE - 1)
random_column = random.randint(0, MAPSIZE - 1)
id_number = len(Map.can_move) + random.randint(0,100)
temp_hero = Character(str("Hero " + str(id_number)), 10, random_column, random_row)
self.Grid[random_column][random_row].append(temp_hero)
self.can_move.append(temp_hero)
def generate_goblin(self): #Generate a character and place it randomly
random_row = random.randint(0, MAPSIZE - 1)
random_column = random.randint(0, MAPSIZE - 1)
temp_goblin = Goblin()
self.Grid[random_column][random_row].append(temp_goblin)
Map.wild_characters.append(temp_goblin)
def update(self): #Important function
for column in range(MAPSIZE): #These nested loops go through entire grid
for row in range(MAPSIZE): #They check if any objects internal coordinates
for i in range(len(Map.Grid[column][row])): #disagree with its place on the grid and update it accordingly
if Map.Grid[column][row][i].internal_column != column:
TempChar = Map.Grid[column][row][i]
Map.Grid[column][row].remove(Map.Grid[column][row][i])
Map.Grid[int(TempChar.internal_column)][int(TempChar.internal_row)].append(TempChar)
elif Map.Grid[column][row][i].internal_row != row:
TempChar = Map.Grid[column][row][i]
Map.Grid[column][row].remove(Map.Grid[column][row][i])
Map.Grid[int(TempChar.internal_column)][int(TempChar.internal_row)].append(TempChar)
temparr = Map.no_moves[:]
for characterobject in temparr: #This moves any characters with moves to the can move list
if len(temparr) > 0:
if characterobject.moves_left > 0:
print("character moved from no moves to moves")
Map.can_move.append(characterobject)
Map.no_moves.remove(characterobject)
arr = Map.can_move[:] # copy
for item in arr:
if item.moves_left == 0:
print("character moved from moves to no moves")
Map.can_move.remove(item)
Map.no_moves.append(item)
Map = Map()
Map.generate_hero()
while not DONE: #Main pygame loop
for event in pygame.event.get(): #catching events
if event.type == pygame.QUIT:
DONE = True
elif event.type == pygame.MOUSEBUTTONDOWN:
Pos = pygame.mouse.get_pos()
column = Pos[0] // (TILEWIDTH + TILEMARGIN) #Translating the position of the mouse into rows and columns
row = Pos[1] // (TILEHEIGHT + TILEMARGIN)
print(str(row) + ", " + str(column))
for i in range(len(Map.Grid[column][row])):
print(str(Map.Grid[column][row][i].name)) #print stuff that inhabits that square
elif event.type == pygame.KEYDOWN:
wild_char_arr = Map.wild_characters[:]
for wildcharacter in wild_char_arr:
if wildcharacter.name == "Goblin":
print("Goblin moved")
wildcharacter.random_move()
if event.key == 97: # Keypress: a
print("New turn.")
temparr = Map.no_moves[:]
for item in temparr:
if item.moves_left == 0:
item.moves_left = 15
elif event.key == 115: # Keypress: s
print("Generated hero.")
Map.generate_hero()
elif event.key == 100: # Keypress: d
Map.generate_goblin()
print("Generated goblin.")
elif event.key == 102: # Keypress: f
Map.can_move[0].attack("N")
elif len(Map.can_move) > 0:
Map.can_move[0].move(KeyLookup[event.key])
else:
print("invalid")
Map.update()
Screen.fill(BLACK)
for row in range(MAPSIZE): # Drawing grid
for column in range(MAPSIZE):
for i in range(0, len(Map.Grid[column][row])):
Color = WHITE
if len(Map.can_move) > 0: # Creating colored area around character showing his move range
if (math.sqrt((Map.can_move[0].internal_column - column)**2 + (Map.can_move[0].internal_row - row)**2)) <= Map.can_move[0].moves_left:
Color = MOVECOLOR
if len(Map.Grid[column][row]) > 1:
Color = RED
if Map.Grid[column][row][i].name == "Tree":
Color = GREEN
if str(Map.Grid[column][row][i].__class__.__name__) == "Character":
Color = BROWN
pygame.draw.rect(Screen, Color, [(TILEMARGIN + TILEWIDTH) * column + TILEMARGIN,
(TILEMARGIN + TILEHEIGHT) * row + TILEMARGIN,
TILEWIDTH,
TILEHEIGHT])
Clock.tick(60)
pygame.display.flip()
pygame.quit()
我遇到的问题是以图形方式显示角色的方向。我想要做的就是在他们面对的角色的网格瓷砖内画一个小的红色方块。例如，如果它们面向北方，则小红色方块将位于角色方格的顶部。
我该怎么做？
答案 0 :(得分：0)
结束这样做：
if str(Map.Grid[column][row][i].__class__.__name__) == "Character": #Drawing the little red square showing character direction
if Map.Grid[column][row][i].direction == "N":
Color = RED
pygame.draw.rect(Screen, Color, [(TILEMARGIN + TILEWIDTH) * column + TILEMARGIN + 8,
(TILEMARGIN + TILEHEIGHT) * row + TILEMARGIN,
TILEWIDTH/4,
TILEHEIGHT/4])
if str(Map.Grid[column][row][i].__class__.__name__) == "Character": #Drawing the little red square showing character directio
if Map.Grid[column][row][i].direction == "S":
Color = RED
pygame.draw.rect(Screen, Color, [(TILEMARGIN + TILEWIDTH) * column + TILEMARGIN + 8,
(TILEMARGIN + TILEHEIGHT) * row + TILEMARGIN*5 - 1 ,
TILEWIDTH/4,
TILEHEIGHT/4])
if str(Map.Grid[column][row][i].__class__.__name__) == "Character": #Drawing the little red square showing character directio
if Map.Grid[column][row][i].direction == "E":
Color = RED
pygame.draw.rect(Screen, Color, [(TILEMARGIN + TILEWIDTH) * column + TILEMARGIN + 15,
(TILEMARGIN + TILEHEIGHT) * row + TILEMARGIN*5 - 8,
TILEWIDTH/4,
TILEHEIGHT/4])
if str(Map.Grid[column][row][i].__class__.__name__) == "Character": #Drawing the little red square showing character directio
if Map.Grid[column][row][i].direction == "W":
Color = RED
pygame.draw.rect(Screen, Color, [(TILEMARGIN + TILEWIDTH) * column + TILEMARGIN
,
(TILEMARGIN + TILEHEIGHT) * row + TILEMARGIN*5 - 8 ,
TILEWIDTH/4,
TILEHEIGHT/4])