请用perl写一个贪吃蛇
时间: 2024-01-05 20:04:31 浏览: 43
好的,以下是一个基于Perl/Tk编写的贪吃蛇游戏程序示例:
```perl
#!/usr/bin/perl
use strict;
use warnings;
use Tk;
# 游戏区域大小
my $width = 20;
my $height = 20;
# 单元格宽度和高度
my $cell_width = 20;
my $cell_height = 20;
# 蛇的初始位置和长度
my @snake = ([int($width / 2), int($height / 2)]);
my $snake_length = 3;
# 蛇的移动方向
my $direction = "left";
# 食物位置
my @food = (0, 0);
# 创建主窗口
my $mw = MainWindow->new();
$mw->title("贪吃蛇游戏");
# 创建画布
my $canvas = $mw->Canvas(
-width => $width * $cell_width,
-height => $height * $cell_height,
-background => "black"
)->pack();
# 初始化游戏界面
init_game();
# 开始游戏循环
MainLoop;
sub init_game {
# 初始化蛇的位置和长度
@snake = ([int($width / 2), int($height / 2)]);
$snake_length = 3;
# 初始化蛇的移动方向
$direction = "left";
# 随机放置食物
@food = (int(rand($width)), int(rand($height)));
# 清空画布
$canvas->delete("all");
# 绘制蛇和食物
draw_snake();
draw_food();
}
sub draw_snake {
foreach my $i (0..$#snake) {
my $x = $snake[$i][0] * $cell_width;
my $y = $snake[$i][1] * $cell_height;
$canvas->createRectangle($x, $y, $x + $cell_width, $y + $cell_height, -fill => "green");
}
}
sub draw_food {
my $x = $food[0] * $cell_width;
my $y = $food[1] * $cell_height;
$canvas->createOval($x, $y, $x + $cell_width, $y + $cell_height, -fill => "red");
}
sub move_snake {
# 计算新的蛇头位置
my $new_head = [@{$snake[0]}];
if ($direction eq "left") {
$new_head->[0] -= 1;
} elsif ($direction eq "right") {
$new_head->[0] += 1;
} elsif ($direction eq "up") {
$new_head->[1] -= 1;
} elsif ($direction eq "down") {
$new_head->[1] += 1;
}
# 检查是否吃到食物
if ($new_head->[0] == $food[0] && $new_head->[1] == $food[1]) {
# 增加蛇的长度
$snake_length += 1;
# 随机放置新的食物
@food = (int(rand($width)), int(rand($height)));
} else {
# 删除蛇尾
pop(@snake);
}
# 添加新的蛇头
unshift(@snake, $new_head);
# 检查是否撞到墙或自己
my $head = $snake[0];
if ($head->[0] < 0 || $head->[0] >= $width || $head->[1] < 0 || $head->[1] >= $height) {
# 游戏结束
my $message = $mw->messageBox(-type => "ok", -message => "游戏结束!");
init_game();
return;
}
foreach my $i (1..$#snake) {
if ($head->[0] == $snake[$i][0] && $head->[1] == $snake[$i][1]) {
# 游戏结束
my $message = $mw->messageBox(-type => "ok", -message => "游戏结束!");
init_game();
return;
}
}
# 绘制新的游戏界面
$canvas->delete("all");
draw_snake();
draw_food();
}
# 处理键盘事件
$mw->bind("<Left>", sub { $direction = "left"; });
$mw->bind("<Right>", sub { $direction = "right"; });
$mw->bind("<Up>", sub { $direction = "up"; });
$mw->bind("<Down>", sub { $direction = "down"; });
# 开始游戏循环
my $timer = $mw->repeat(100, \&move_snake);
```
运行上述代码后,您就可以在图形界面中玩贪吃蛇游戏了。按左、右、上、下箭头控制蛇的移动方向,尽可能吃到食物,避免撞到墙或自己。
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