用love2d写一篇坦克大战

好的，以下是一个简单的坦克大战游戏示例，使用 Love2D 进行编写：

-- 坦克大战游戏

-- 定义游戏窗口大小
WINDOW_WIDTH = 640
WINDOW_HEIGHT = 480

-- 定义坦克大小
TANK_WIDTH = 32
TANK_HEIGHT = 32

-- 定义子弹大小
BULLET_WIDTH = 8
BULLET_HEIGHT = 8

-- 定义坦克速度
TANK_SPEED = 200

-- 定义子弹速度
BULLET_SPEED = 400

-- 加载游戏资源
function love.load()
    -- 加载坦克和子弹图片资源
    tankImage = love.graphics.newImage("tank.png")
    bulletImage = love.graphics.newImage("bullet.png")

    -- 初始化坦克和子弹列表
    tanks = {}
    bullets = {}

    -- 添加玩家坦克
    playerTank = {
        x = WINDOW_WIDTH / 2 - TANK_WIDTH / 2,
        y = WINDOW_HEIGHT - TANK_HEIGHT,
        direction = "up",
        image = tankImage,
        isPlayer = true
    }
    table.insert(tanks, playerTank)
end

-- 更新游戏状态
function love.update(dt)
    -- 移动坦克
    for _, tank in ipairs(tanks) do
        if tank.isPlayer then
            -- 玩家坦克由键盘控制移动
            if love.keyboard.isDown("left") then
                tank.x = tank.x - TANK_SPEED * dt
                tank.direction = "left"
            elseif love.keyboard.isDown("right") then
                tank.x = tank.x + TANK_SPEED * dt
                tank.direction = "right"
            elseif love.keyboard.isDown("up") then
                tank.y = tank.y - TANK_SPEED * dt
                tank.direction = "up"
            elseif love.keyboard.isDown("down") then
                tank.y = tank.y + TANK_SPEED * dt
                tank.direction = "down"
            end
        else
            -- 其他坦克随机移动
            local directions = {"left", "right", "up", "down"}
            local direction = directions[math.random(1, 4)]
            if direction == "left" then
                tank.x = tank.x - TANK_SPEED * dt
                tank.direction = "left"
            elseif direction == "right" then
                tank.x = tank.x + TANK_SPEED * dt
                tank.direction = "right"
            elseif direction == "up" then
                tank.y = tank.y - TANK_SPEED * dt
                tank.direction = "up"
            elseif direction == "down" then
                tank.y = tank.y + TANK_SPEED * dt
                tank.direction = "down"
            end
        end

        -- 碰撞检测
        if tank.x < 0 then
            tank.x = 0
        elseif tank.x + TANK_WIDTH > WINDOW_WIDTH then
            tank.x = WINDOW_WIDTH - TANK_WIDTH
        end
        if tank.y < 0 then
            tank.y = 0
        elseif tank.y + TANK_HEIGHT > WINDOW_HEIGHT then
            tank.y = WINDOW_HEIGHT - TANK_HEIGHT
        end
    end

    -- 移动子弹
    for i, bullet in ipairs(bullets) do
        if bullet.direction == "left" then
            bullet.x = bullet.x - BULLET_SPEED * dt
        elseif bullet.direction == "right" then
            bullet.x = bullet.x + BULLET_SPEED * dt
        elseif bullet.direction == "up" then
            bullet.y = bullet.y - BULLET_SPEED * dt
        elseif bullet.direction == "down" then
            bullet.y = bullet.y + BULLET_SPEED * dt
        end

        -- 判断子弹是否出界
        if bullet.x < 0 or bullet.x > WINDOW_WIDTH or bullet.y < 0 or bullet.y > WINDOW_HEIGHT then
            table.remove(bullets, i)
        end

        -- 判断子弹是否击中坦克
        for j, tank in ipairs(tanks) do
            if not tank.isPlayer and checkCollision(bullet, tank) then
                table.remove(bullets, i)
                table.remove(tanks, j)
            end
        end
    end

    -- 添加新的坦克
    if #tanks < 10 then
        local tank = {
            x = math.random(TANK_WIDTH, WINDOW_WIDTH - TANK_WIDTH),
            y = math.random(TANK_HEIGHT, WINDOW_HEIGHT - TANK_HEIGHT),
            direction = "up",
            image = tankImage,
            isPlayer = false
        }
        table.insert(tanks, tank)
    end
end

-- 绘制游戏界面
function love.draw()
    -- 绘制坦克和子弹
    for _, tank in ipairs(tanks) do
        love.graphics.draw(tank.image, tank.x, tank.y)

        -- 绘制坦克方向
        if tank.direction == "left" then
            love.graphics.line(tank.x, tank.y + TANK_HEIGHT / 2, tank.x - TANK_WIDTH / 2, tank.y + TANK_HEIGHT / 2)
        elseif tank.direction == "right" then
            love.graphics.line(tank.x + TANK_WIDTH, tank.y + TANK_HEIGHT / 2, tank.x + TANK_WIDTH + TANK_WIDTH / 2, tank.y + TANK_HEIGHT / 2)
        elseif tank.direction == "up" then
            love.graphics.line(tank.x + TANK_WIDTH / 2, tank.y, tank.x + TANK_WIDTH / 2, tank.y - TANK_HEIGHT / 2)
        elseif tank.direction == "down" then
            love.graphics.line(tank.x + TANK_WIDTH / 2, tank.y + TANK_HEIGHT, tank.x + TANK_WIDTH / 2, tank.y + TANK_HEIGHT + TANK_HEIGHT / 2)
        end
    end
    for _, bullet in ipairs(bullets) do
        love.graphics.draw(bulletImage, bullet.x, bullet.y)
    end
end

-- 处理键盘事件
function love.keypressed(key)
    if key == "escape" then
        love.event.quit()
    elseif key == "space" then
        -- 发射子弹
        local bullet = {
            x = playerTank.x + TANK_WIDTH / 2 - BULLET_WIDTH / 2,
            y = playerTank.y + TANK_HEIGHT / 2 - BULLET_HEIGHT / 2,
            direction = playerTank.direction
        }
        table.insert(bullets, bullet)
    end
end

-- 检测碰撞
function checkCollision(object1, object2)
    local left1 = object1.x
    local right1 = object1.x + object1.width
    local top1 = object1.y
    local bottom1 = object1.y + object1.height

    local left2 = object2.x
    local right2 = object2.x + object2.width
    local top2 = object2.y
    local bottom2 = object2.y + object2.height

    if left1 < right2 and right1 > left2 and top1 < bottom2 and bottom1 > top2 then
        return true
    else
        return false
    end
end

在这个游戏中，玩家控制一辆坦克，使用键盘移动并发射子弹，击败其他坦克即可获得胜利。除了玩家坦克外，游戏还会自动生成其他坦克，使游戏更具挑战性。