129 lines
4.3 KiB
Lua
129 lines
4.3 KiB
Lua
function love.load()
|
|
math.randomseed(os.time())
|
|
game = {}
|
|
game.width = 800
|
|
game.height = 480
|
|
game.play = true
|
|
game.score = 0
|
|
game.time_restart = 2
|
|
love.window.setMode(game.width, game.height)
|
|
score = { x = 500, y = 40 }
|
|
-- Background
|
|
background = {}
|
|
background.img = love.graphics.newImage('assets/sprites/background.jpg')
|
|
background.x = 0
|
|
background.y = 0
|
|
-- Spaceship
|
|
spaceship = {}
|
|
spaceship.img = love.graphics.newImage('assets/sprites/spaceship.png')
|
|
spaceship.x = game.height / 8
|
|
spaceship.num_frames = 4
|
|
spaceship.pos_frame = 1
|
|
spaceship.frame_width = spaceship.img:getWidth() / spaceship.num_frames
|
|
spaceship.y = {
|
|
(game.height / 4) - (spaceship.img:getHeight() / 2),
|
|
2 * (game.height / 4) - (spaceship.img:getHeight() / 2),
|
|
3 * (game.height / 4) - (spaceship.img:getHeight() / 2),
|
|
}
|
|
spaceship.pos = 2
|
|
spaceship.frames = {
|
|
love.graphics.newQuad(spaceship.frame_width * 0, 0, spaceship.frame_width, spaceship.img:getHeight(), spaceship.img:getWidth(), spaceship.img:getHeight()),
|
|
love.graphics.newQuad(spaceship.frame_width * 1, 0, spaceship.frame_width, spaceship.img:getHeight(), spaceship.img:getWidth(), spaceship.img:getHeight()),
|
|
love.graphics.newQuad(spaceship.frame_width * 2, 0, spaceship.frame_width, spaceship.img:getHeight(), spaceship.img:getWidth(), spaceship.img:getHeight()),
|
|
love.graphics.newQuad(spaceship.frame_width * 3, 0, spaceship.frame_width, spaceship.img:getHeight(), spaceship.img:getWidth(), spaceship.img:getHeight())
|
|
}
|
|
-- Asteroids
|
|
num_asteroids = 3
|
|
asteroids = {}
|
|
for i = 1, num_asteroids do
|
|
asteroid = {}
|
|
asteroid.img = love.graphics.newImage('assets/sprites/asteroid_' .. tostring(math.random(1, 2)) .. '.png')
|
|
asteroid.x = game.width
|
|
asteroid.y = {
|
|
(game.height / 4) - (asteroid.img:getHeight() / 2),
|
|
2 * (game.height / 4) - (asteroid.img:getHeight() / 2),
|
|
3 * (game.height / 4) - (asteroid.img:getHeight() / 2),
|
|
}
|
|
asteroid.pos = 2
|
|
asteroid.speed = 800
|
|
asteroids[i] = asteroid
|
|
end
|
|
-- Sounds
|
|
sounds = {}
|
|
sounds.die = love.audio.newSource('assets/sounds/die.wav', 'static')
|
|
sounds.ambient = love.audio.newSource('assets/sounds/ambient.wav')
|
|
sounds.ambient:play()
|
|
sounds.ambient:setLooping(true)
|
|
end
|
|
|
|
local my_time_restart = 0
|
|
function love.update(dt)
|
|
if not game.play then
|
|
my_time_restart = my_time_restart + dt
|
|
if my_time_restart > game.time_restart then
|
|
game.play = true
|
|
game.score = 0
|
|
my_time_restart = 0
|
|
end
|
|
end
|
|
-- Score
|
|
if game.play then
|
|
game.score = game.score + dt * 100
|
|
end
|
|
-- Sprite spaceship
|
|
if spaceship.pos_frame ~= spaceship.num_frames then
|
|
spaceship.pos_frame = spaceship.pos_frame + 1
|
|
else
|
|
spaceship.pos_frame = 1
|
|
end
|
|
-- Asteroids
|
|
for key, asteroid in pairs(asteroids) do
|
|
asteroid.x = asteroid.x - (dt * asteroid.speed)
|
|
if asteroid.x < -asteroid.img:getWidth() then
|
|
asteroid.x = game.width + math.random(0, game.width)
|
|
asteroid.pos = math.random(1, 3)
|
|
end
|
|
-- Colision
|
|
if checkCollision(spaceship.x + spaceship.img:getWidth() / spaceship.num_frames / 2, spaceship.y[spaceship.pos], spaceship.img:getWidth() / spaceship.num_frames / 2, spaceship.img:getHeight(), asteroid.x, asteroid.y[asteroid.pos], asteroid.img:getWidth(), asteroid.img:getHeight()) then
|
|
game.play = false
|
|
sounds.die:play()
|
|
end
|
|
end
|
|
end
|
|
|
|
function love.draw()
|
|
-- Background
|
|
love.graphics.draw(background.img, background.x, background.y)
|
|
-- Spaceship
|
|
if game.play then
|
|
love.graphics.draw(spaceship.img, spaceship.frames[spaceship.pos_frame], spaceship.x, spaceship.y[spaceship.pos])
|
|
end
|
|
-- Asteroids
|
|
for key, asteroid in pairs(asteroids) do
|
|
love.graphics.draw(asteroid.img, asteroid.x, asteroid.y[asteroid.pos])
|
|
end
|
|
-- Score
|
|
love.graphics.print('Score: ' .. math.ceil(game.score), score.x , score.y)
|
|
if not game.play then
|
|
love.graphics.print('Game over', game.width / 2, game.height / 2)
|
|
end
|
|
end
|
|
|
|
-- Controls
|
|
function love.keypressed(key, scancode, isrepeat)
|
|
if key == 'escape' then
|
|
love.event.push('quit')
|
|
end
|
|
if key == 'up' and spaceship.pos > 1 then
|
|
spaceship.pos = spaceship.pos - 1
|
|
elseif key == 'down' and spaceship.pos < 3 then
|
|
spaceship.pos = spaceship.pos + 1
|
|
end
|
|
end
|
|
|
|
function checkCollision(x1,y1,w1,h1, x2,y2,w2,h2)
|
|
return x1 < x2 + w2 and
|
|
x2 < x1 + w1 and
|
|
y1 < y2 + h2 and
|
|
y2 < y1 + h1
|
|
end |