俄罗斯方块(二)：颜色篇

主要内容：

随机颜色的俄罗斯方块

变背景颜色，实现隐形方块的俄罗斯方块

本文基于我的上一篇

俄罗斯方块(一)：简版

核心思路：

1，图像由“核心变量”完全控制，图像变化的本质是 变量的改变

2，自上而下式的思考，图像变化的问题将一步步转为 一系列具体的变量修改

3，“核心变量”在思考过程中并非不可变更，为了写函数方便，可以适当让步

一、随机颜色

无疑，我们需要 新变量 记录颜色

下一步 颜色信息的 产生 使用 销毁

一个方块”落地”后，产生的下一个方块形状的同时随机产生一个颜色

    active.clear()
    active.extend(list(random.choice(all_block)))
    centre.clear()
    centre.extend([20, 4])
    a_color.clear()
    a_color.extend([random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)])

画面绘制时 就不再用 blue

    x, y = centre
    for i, j in active:
        i += x
        j += y
        pygame.draw.rect(screen, a_color, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))

方块落地后，信息转入background ，background 并不介意0,1之外的 数据

ps：是上一篇的代码中 判断一个位置是否被占 只要求 布尔值为True

不信你看↓↓↓↓

def move_LR(n):
    """n=-1代表向左，n=1代表向右"""
    x, y = centre
    y += n
    for i, j in active:
        i += x
        j += y
        if j < 0 or j > 9 or background[i][j]:
            break
    else:
        centre.clear()
        centre.extend([x, y])

判断是否满行时 也仅仅 0 not in  xx 而已

所以颜色信息可以直接写入 background 

    # active --转入-> background 
    x, y = centre
    for i, j in active:
        # background[x + i][y + j] = 1
        background[x + i][y + j] = tuple(a_color)

ps ：a_color 是 list 不能直接赋值(赋值 != 浅拷贝)

画面绘制部分 也要改

    for i in range(1, 21):
        for j in range(10):
            bolck = background[i][j]
            if bolck:
                # pygame.draw.rect(screen, blue, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))
                pygame.draw.rect(screen, bolck, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))

销毁就不用担心了 和位置信息的那部分相同

成品

完整的代码

# 随机颜色
import pygame, sys, random, time


def new_draw():
    screen.fill(white)

    for i in range(1, 21):
        for j in range(10):
            bolck = background[i][j]
            if bolck:
                # pygame.draw.rect(screen, blue, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))
                pygame.draw.rect(screen, bolck, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))

    x, y = centre
    for i, j in active:
        i += x
        j += y
        pygame.draw.rect(screen, a_color, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))

    pygame.display.update()


def move_LR(n):
    """n=-1代表向左，n=1代表向右"""
    x, y = centre
    y += n
    for i, j in active:
        i += x
        j += y
        if j < 0 or j > 9 or background[i][j]:
            break
    else:
        centre.clear()
        centre.extend([x, y])


def rotate():
    x, y = centre
    l = [(-j, i) for i, j in active]
    for i, j in l:
        i += x
        j += y
        if j < 0 or j > 9 or background[i][j]:
            break
    else:
        active.clear()
        active.extend(l)


def move_down():
    x, y = centre
    x -= 1
    for i, j in active:
        i += x
        j += y
        if background[i][j]:
            break
    else:
        centre.clear()
        centre.extend([x, y])
        return

    # active --转入-> background
    x, y = centre
    for i, j in active:
        # background[x + i][y + j] = 1
        background[x + i][y + j] = tuple(a_color)

    l = []
    for i in range(1, 20):
        if 0 not in background[i]:
            l.append(i)

    l.sort(reverse=True)

    for i in l:
        background.pop(i)
        background.append([0 for j in range(10)])

    score[0] += len(l)
    pygame.display.set_caption("分数：%d" % (score[0]))

    active.clear()
    active.extend(list(random.choice(all_block)))
    centre.clear()
    centre.extend([20, 4])
    a_color.clear()
    a_color.extend([random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)])
    x, y = centre
    for i, j in active:
        i += x
        j += y
        if background[i][j]:
            break
    else:
        return
    alive.append(1)


pygame.init()
screen = pygame.display.set_mode((250, 500))
pygame.display.set_caption("俄罗斯方块")
fclock = pygame.time.Clock()

all_block = (((0, 0), (0, -1), (0, 1), (0, 2)),
             ((0, 0), (0, 1), (-1, 0), (-1, 1)),
             ((0, 0), (0, -1), (-1, 0), (-1, 1)),
             ((0, 0), (0, 1), (-1, -1), (-1, 0)),
             ((0, 0), (0, 1), (1, 0), (0, -1)),
             ((0, 0), (1, 0), (-1, 0), (1, -1)),
             ((0, 0), (1, 0), (-1, 0), (1, 1)))
background = [[0 for i in range(10)] for j in range(24)]
background[0] = [1 for i in range(10)]
active = list(random.choice(all_block))
centre = [20, 4]
score = [0]
a_color = [random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)]

black = 0, 0, 0
white = 255, 255, 255
blue = 0, 0, 255

times = 0
alive = []
press = False
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                move_LR(-1)
            elif event.key == pygame.K_RIGHT:
                move_LR(1)
            elif event.key == pygame.K_UP:
                rotate()
            elif event.key == pygame.K_DOWN:
                press = True
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_DOWN:
                press = False
    if press:
        times += 10

    if times >= 50:
        move_down()
        times = 0
    else:
        times += 1

    if alive:
        pygame.display.set_caption("over分数：%d" % (score[0]))
        time.sleep(3)
        break
    new_draw()
    fclock.tick(100)

看了成品图，发现有些颜色很浅，那也在常理之中

那如果随机出来255,255,255 白色或者254,254,254之类 人眼无法分辨的颜色那岂不是.......美滋滋?!.....

二、变背景颜色，实现隐形方块的俄罗斯方块

背景颜色两个，黑和白

活动方块颜色两个，黑和白

两个颜色一黑一白，交替变化

成品图假想图

 

act = 0
bg = 1

black = 0, 0, 0
white = 255, 255, 255
blue = 0, 0, 255
color = [black, white]

变量color用来保存颜色信息color[0] / color[ act ] 是活动方块的颜色   color[1] / color[ bg ] 是背景颜色 

# 双色版
import pygame, sys, random, time


def new_draw():
    screen.fill(color[bg])

    for i in range(1, 21):
        for j in range(10):
            bolck = background[i][j]
            if bolck:
                pygame.draw.rect(screen, bolck, (j * 25 + 1, 500 - i * 25 + 1, 23, 23))

    x, y = centre
    for i, j in active:
        i += x
        j += y
        pygame.draw.rect(screen, color[act], (j * 25 + 1, 500 - i * 25 + 1, 23, 23))

    pygame.display.update()


def move_LR(n):
    """n=-1代表向左，n=1代表向右"""
    x, y = centre
    y += n
    for i, j in active:
        i += x
        j += y
        if j < 0 or j > 9 or background[i][j]:
            break
    else:
        centre.clear()
        centre.extend([x, y])


def rotate():
    x, y = centre
    l = [(-j, i) for i, j in active]
    for i, j in l:
        i += x
        j += y
        if j < 0 or j > 9 or background[i][j]:
            break
    else:
        active.clear()
        active.extend(l)


def move_down():
    x, y = centre
    x -= 1
    for i, j in active:
        i += x
        j += y
        if background[i][j]:
            break
    else:
        centre.clear()
        centre.extend([x, y])
        return

    x, y = centre
    for i, j in active:
        background[x + i][y + j] = color[act]

    l = []
    for i in range(1, 20):
        if 0 not in background[i]:
            l.append(i)

    l.sort(reverse=True)

    for i in l:
        background.pop(i)
        background.append([0 for j in range(10)])

    score[0] += len(l)
    pygame.display.set_caption("分数：%d" % (score[0]))

    active.clear()
    active.extend(list(random.choice(all_block)))
    centre.clear()
    centre.extend([20, 4])
    # - 互换颜色
    color.insert(0, color.pop())
    # color[act], color[bg] = color[bg], color[act]

    x, y = centre
    for i, j in active:
        i += x
        j += y
        if background[i][j]:
            break
    else:
        return
    alive.append(1)


pygame.init()
screen = pygame.display.set_mode((250, 500))
pygame.display.set_caption("俄罗斯方块")
fclock = pygame.time.Clock()

all_block = (((0, 0), (0, -1), (0, 1), (0, 2)),
             ((0, 0), (0, 1), (-1, 0), (-1, 1)),
             ((0, 0), (0, -1), (-1, 0), (-1, 1)),
             ((0, 0), (0, 1), (-1, -1), (-1, 0)),
             ((0, 0), (0, 1), (1, 0), (0, -1)),
             ((0, 0), (1, 0), (-1, 0), (1, -1)),
             ((0, 0), (1, 0), (-1, 0), (1, 1)))
background = [[0 for i in range(10)] for j in range(24)]
background[0] = [1 for i in range(10)]
active = list(random.choice(all_block))
centre = [20, 4]
score = [0]

act = 0
bg = 1

black = 0, 0, 0
white = 255, 255, 255
blue = 0, 0, 255
color = [black, white]

times = 0
alive = []
press = False
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                move_LR(-1)
            elif event.key == pygame.K_RIGHT:
                move_LR(1)
            elif event.key == pygame.K_UP:
                rotate()
            elif event.key == pygame.K_DOWN:
                press = True
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_DOWN:
                press = False
    if press:
        times += 10

    if times >= 50:
        move_down()
        times = 0
    else:
        times += 1

    if alive:
        pygame.display.set_caption("over分数：%d" % (score[0]))
        time.sleep(3)
        break
    new_draw()
    fclock.tick(100)

颜色篇先到这里，以后有内容再补充

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