318 lines
10 KiB
Lua
318 lines
10 KiB
Lua
|
-- main.lua (LÖVE框架的主文件)
|
||
|
|
|
||
|
|
-- 初始化函数，只会在游戏开始时调用一次
|
||
|
|
function love.load()
|
||
|
|
-- 初始化游戏状态和资源
|
||
|
|
love.keyboard.setKeyRepeat(true)
|
||
|
|
windowsWith = 800
|
||
|
|
windowsHeight = 600
|
||
|
|
circleX = 400
|
||
|
|
circleY = 550
|
||
|
|
plane = {
|
||
|
|
x = 400, -- 初始X位置
|
||
|
|
y = 500, -- 初始Y位置
|
||
|
|
speed = 200, -- 移动速度(像素/秒)
|
||
|
|
angle = 0, -- 旋转角度
|
||
|
|
img = nil -- 飞机图像
|
||
|
|
}
|
||
|
|
plane.img = love.graphics.newImage("plan.png")
|
||
|
|
--plane['x'] = 400
|
||
|
|
--plane['y'] = 500
|
||
|
|
planeWidth = 10
|
||
|
|
enemyWidth = 20
|
||
|
|
bulletWidth = 10
|
||
|
|
bulletHeight = 20
|
||
|
|
--image = love.graphics.newImage("image.png")
|
||
|
|
local f = love.graphics.newFont(12)
|
||
|
|
love.graphics.setFont(f)
|
||
|
|
love.graphics.setColor(0,0,0,255)
|
||
|
|
love.graphics.setBackgroundColor(255,255,255)
|
||
|
|
clkX = 0
|
||
|
|
clkY = 0
|
||
|
|
stopX = false
|
||
|
|
stopY = false
|
||
|
|
bullet = {}
|
||
|
|
bulletImg = love.graphics.newImage("bullet.png")
|
||
|
|
text = ''
|
||
|
|
enemy = {}
|
||
|
|
enemy['x'] = 400
|
||
|
|
enemy['y'] = -40
|
||
|
|
enemy['hv'] = 100
|
||
|
|
enemy['angle'] = 0
|
||
|
|
enemyImg = love.graphics.newImage("enemy.png")
|
||
|
|
enemyWidth = 20
|
||
|
|
currentTime = os.time()
|
||
|
|
enemyBullet = {}
|
||
|
|
enemyBullet['x'] = -40
|
||
|
|
enemyBullet['y'] = -40
|
||
|
|
enemyBulletImg = love.graphics.newImage("enemyBullet.png")
|
||
|
|
shootTime = os.time()
|
||
|
|
flag = 0
|
||
|
|
hurtNumber = 30
|
||
|
|
speed = 100
|
||
|
|
boom = {
|
||
|
|
x = -40,
|
||
|
|
y = -40,
|
||
|
|
angle = 0,
|
||
|
|
time = 0,
|
||
|
|
img = nil
|
||
|
|
}
|
||
|
|
boom.img = love.graphics.newImage("boom.png")
|
||
|
|
boomTime = 0
|
||
|
|
focus = true
|
||
|
|
end
|
||
|
|
|
||
|
|
-- 更新函数，每一帧都会调用
|
||
|
|
function love.update(dt)
|
||
|
|
if not focus then return end
|
||
|
|
love.graphics.print(plane['x'],plane['y'])
|
||
|
|
-- 更新游戏状态
|
||
|
|
--circleX = circleX + (100 * dt)
|
||
|
|
if plane['x'] > windowsWith then
|
||
|
|
plane['x'] = 0
|
||
|
|
elseif plane['x'] < 0 then
|
||
|
|
plane['x'] = windowsWith
|
||
|
|
end
|
||
|
|
|
||
|
|
if plane['y'] > windowsHeight then
|
||
|
|
plane['y'] = 0
|
||
|
|
elseif plane['y'] < 0 then
|
||
|
|
plane['y'] = windowsHeight
|
||
|
|
end
|
||
|
|
if love.keyboard.isDown('left') or love.keyboard.isDown('a') then
|
||
|
|
plane['x'] = plane['x'] - speed * dt
|
||
|
|
elseif love.keyboard.isDown('right') or love.keyboard.isDown('d') then
|
||
|
|
plane['x'] = plane['x'] + speed * dt
|
||
|
|
elseif love.keyboard.isDown('up') or love.keyboard.isDown('w') then
|
||
|
|
plane['y'] = plane['y'] - speed * dt
|
||
|
|
elseif love.keyboard.isDown('down') or love.keyboard.isDown('s') then
|
||
|
|
plane['y'] = plane['y'] + speed * dt
|
||
|
|
end
|
||
|
|
if clkX > 0 and math.abs(clkX - plane['x']) > 200 * dt then
|
||
|
|
if clkX > plane['x'] then
|
||
|
|
plane['x'] = plane['x'] + speed * dt
|
||
|
|
else
|
||
|
|
plane['x'] = plane['x'] - speed * dt
|
||
|
|
end
|
||
|
|
else
|
||
|
|
stopX = true
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
if clkY > 0 and math.abs(clkY - plane['y']) > 200 * dt then
|
||
|
|
if clkY > plane['y'] then
|
||
|
|
plane['y'] = plane['y'] + speed * dt
|
||
|
|
else
|
||
|
|
plane['y'] = plane['y'] - speed * dt
|
||
|
|
end
|
||
|
|
else
|
||
|
|
stopY = true
|
||
|
|
end
|
||
|
|
|
||
|
|
if stopX and stopY then
|
||
|
|
clkX = -10
|
||
|
|
clkY = -10
|
||
|
|
end
|
||
|
|
time = os.time()
|
||
|
|
if enemy and time - currentTime > 3 then
|
||
|
|
enemy['y'] = enemy['y'] + speed * dt
|
||
|
|
end
|
||
|
|
if boom and boom.y > 0 then
|
||
|
|
boom.time = boom.time + 1
|
||
|
|
if boom.time > 10 then
|
||
|
|
boom.x = -40
|
||
|
|
boom.y = -40
|
||
|
|
boom.time = 0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
addEnemyBullet()
|
||
|
|
updateBullet(dt)
|
||
|
|
collision()
|
||
|
|
end
|
||
|
|
|
||
|
|
-- 绘制函数，每一帧都会调用
|
||
|
|
function love.draw()
|
||
|
|
-- 绘制游戏画面
|
||
|
|
--love.graphics.circle("fill", plane['x'], plane['y'], planeWidth, planeWidth)
|
||
|
|
love.graphics.draw(
|
||
|
|
plane.img,
|
||
|
|
plane.x, plane.y, -- 位置
|
||
|
|
plane.angle,-- + math.pi/2, -- 角度(加π/2因为我们的三角形朝上)
|
||
|
|
0.2, 0.2, -- 缩放
|
||
|
|
plane.img:getWidth()/2, -- 原点X(居中)
|
||
|
|
plane.img:getHeight()/2 -- 原点Y(居中)
|
||
|
|
)
|
||
|
|
if boom.x > 0 and os.time() > boomTime then
|
||
|
|
boom.x = -40
|
||
|
|
boom.y = -40
|
||
|
|
end
|
||
|
|
for i = 1, #bullet do
|
||
|
|
if bullet[i] then
|
||
|
|
if bullet[i]['y'] < 0 then
|
||
|
|
table.remove(bullet, i)
|
||
|
|
else
|
||
|
|
--love.graphics.rectangle("fill",bullet[i]['x'], bullet[i]['y'], bulletWidth,bulletHeight, 15)
|
||
|
|
love.graphics.draw(
|
||
|
|
bulletImg,
|
||
|
|
bullet[i].x, bullet[i].y, -- 位置
|
||
|
|
0, -- 角度(加π/2因为我们的三角形朝上)
|
||
|
|
1, 1, -- 缩放
|
||
|
|
bulletImg:getWidth()/2, -- 原点X(居中)
|
||
|
|
bulletImg:getHeight()/2 -- 原点Y(居中)
|
||
|
|
)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if enemy then
|
||
|
|
if enemy['y'] > windowsHeight + 2 * enemyWidth or enemy['hv'] < 0 then
|
||
|
|
initEnemy()
|
||
|
|
else
|
||
|
|
--love.graphics.circle("fill", enemy['x'], enemy['y'], enemyWidth, enemyWidth)
|
||
|
|
love.graphics.draw(
|
||
|
|
enemyImg,
|
||
|
|
enemy.x, enemy.y, -- 位置
|
||
|
|
enemy.angle + math.pi/2, -- 角度(加π/2因为我们的三角形朝上)
|
||
|
|
1, 1, -- 缩放
|
||
|
|
enemyImg:getWidth()/2, -- 原点X(居中)
|
||
|
|
enemyImg:getHeight()/2 -- 原点Y(居中)
|
||
|
|
)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if enemyBullet then
|
||
|
|
if enemyBullet['y'] < windowsHeight + bulletHeight and enemyBullet['y'] > 0 then
|
||
|
|
love.graphics.draw(
|
||
|
|
enemyBulletImg,
|
||
|
|
enemyBullet.x, enemyBullet.y, -- 位置
|
||
|
|
0, -- 角度(加π/2因为我们的三角形朝上)
|
||
|
|
1, 1, -- 缩放
|
||
|
|
enemyBulletImg:getWidth()/2, -- 原点X(居中)
|
||
|
|
enemyBulletImg:getHeight()/2 -- 原点Y(居中)
|
||
|
|
)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if boom and boom.y > 0 then
|
||
|
|
|
||
|
|
love.graphics.draw(
|
||
|
|
boom.img,
|
||
|
|
boom.x, boom.y, -- 位置
|
||
|
|
0, -- 角度(加π/2因为我们的三角形朝上)
|
||
|
|
1, 1, -- 缩放
|
||
|
|
boom.img:getWidth()/2, -- 原点X(居中)
|
||
|
|
boom.img:getHeight()/2 -- 原点Y(居中)
|
||
|
|
)
|
||
|
|
end
|
||
|
|
love.graphics.setColor(255,0,0)
|
||
|
|
love.graphics.print(text, 10, 20)
|
||
|
|
end
|
||
|
|
|
||
|
|
function initEnemy()
|
||
|
|
enemy['y'] = -40
|
||
|
|
enemy['hv'] = 100
|
||
|
|
currentTime = os.time()
|
||
|
|
math.randomseed(os.time())
|
||
|
|
enemy['x'] = math.random(enemyWidth / 2, windowsWith - enemyWidth / 2)
|
||
|
|
end
|
||
|
|
|
||
|
|
-- 键盘按下事件处理函数
|
||
|
|
function love.keypressed(key, scancode)
|
||
|
|
-- 处理键盘输入
|
||
|
|
if key == 'space' then
|
||
|
|
bt = {}
|
||
|
|
bt['x'] = plane['x'] --- bulletWidth / 2
|
||
|
|
bt['y'] = plane['y']
|
||
|
|
table.insert(bullet, bt)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
function collision()
|
||
|
|
--子弹与敌方子弹碰撞消失, 子弹与地基碰撞消失, 血条减少
|
||
|
|
for i = 1, #bullet do
|
||
|
|
if bullet[i] then
|
||
|
|
if bullet[i] and bullet[i]['x'] + bulletWidth > enemy['x'] - enemyWidth and bullet[i]['x'] < enemy['x'] + enemyWidth and enemy['y'] + enemyWidth >= bullet[i]['y'] then
|
||
|
|
enemy['hv'] = enemy['hv'] - 30
|
||
|
|
boom.x = bullet[i].x
|
||
|
|
boom.y = bullet[i].y + planeWidth
|
||
|
|
boomTime = os.time()
|
||
|
|
table.remove(bullet,i)
|
||
|
|
if enemy['hv'] < 0 then
|
||
|
|
--enemy['y'] = -40
|
||
|
|
--enemy.hv = 100
|
||
|
|
initEnemy()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if bullet[i] and bullet[i]['x'] + bulletWidth > enemyBullet['x'] and bullet[i]['x'] < enemyBullet['x'] + bulletWidth and bullet[i]['y'] < enemyBullet['y'] + bulletHeight then
|
||
|
|
boom.x = bullet[i].x
|
||
|
|
boom.y = bullet[i].y + planeWidth
|
||
|
|
boomTime = os.time()
|
||
|
|
table.remove(bullet,i)
|
||
|
|
enemyBullet['y'] = -40
|
||
|
|
shootTime = os.time()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
--我方战机与敌机碰撞, 地基消失
|
||
|
|
if math.abs(plane['x'] - enemy['x']) < planeWidth + enemyWidth and plane['y'] - planeWidth < enemy['y'] + enemyWidth then
|
||
|
|
boom.x = enemy.x
|
||
|
|
boom.y = enemy.y + planeWidth
|
||
|
|
boomTime = os.time()
|
||
|
|
initEnemy()
|
||
|
|
end
|
||
|
|
--敌方子弹碰撞我方战机, 敌方子弹消失
|
||
|
|
if enemyBullet then
|
||
|
|
if ((enemyBullet['x'] >= plane.x and enemyBullet['x'] - plane['x'] < planeWidth) or (enemyBullet['x'] < plane['x'] and plane['x'] - enemyBullet['x'] < enemyWidth)) and enemyBullet['y'] + enemyWidth > plane['y'] - 10 then
|
||
|
|
shootTime = os.time()
|
||
|
|
boom.x = enemyBullet.x
|
||
|
|
boom.y = enemyBullet.y + planeWidth
|
||
|
|
boomTime = os.time()
|
||
|
|
enemyBullet['y'] = -40
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
function addEnemyBullet()
|
||
|
|
if enemy and enemy['y'] > 2 * enemyWidth and os.time() - shootTime > 1 and enemyBullet['y'] < 0 then
|
||
|
|
enemyBullet['x'] = enemy['x'] -- bulletWidth / 2
|
||
|
|
enemyBullet['y'] = enemy['y'] + enemyWidth
|
||
|
|
--text = 'gege' .. enemyBullet['x'] .. ' ' .. enemy['x']
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
function love.keyreleased(key, scancode)
|
||
|
|
-- 处理键盘释放事件
|
||
|
|
end
|
||
|
|
|
||
|
|
function love.mousepressed(x, y, button, istouch)
|
||
|
|
if button == 1 then
|
||
|
|
stopX = false
|
||
|
|
stopY = false
|
||
|
|
clkX = x
|
||
|
|
clkY = y
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
function love.focus(f)
|
||
|
|
if not f then
|
||
|
|
text = "LOST FOCUS"
|
||
|
|
focus = false
|
||
|
|
else
|
||
|
|
text ="GAINED FOCUS"
|
||
|
|
focus = true
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
function love.quit()
|
||
|
|
print("Thanks for playing! Come back soon!")
|
||
|
|
end
|
||
|
|
|
||
|
|
function updateBullet(dt)
|
||
|
|
for i = 1, #bullet do
|
||
|
|
bullet[i]['y'] = bullet[i]['y'] - speed * dt * 3
|
||
|
|
end
|
||
|
|
if enemyBullet and enemyBullet['y'] > 0 then
|
||
|
|
enemyBullet['y'] = enemyBullet['y'] + speed * dt * 3
|
||
|
|
if enemyBullet['y'] > windowsHeight + 2 * enemyWidth then
|
||
|
|
enemyBullet['y'] = -2 * enemyWidth
|
||
|
|
shootTime = os.time()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|