LÖVE

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function love.load()
	hero = {} --A table for the hero
	hero.x = 80
	hero.y = 300
	hero.width=15
	hero.height=15
	hero.speed = 300
	score = 0
	enemies = {} --A table for the enemies
	gameover = ("false")
	hero.shots = {}

	for i=0,5 do
		enemy = {}
		enemy.width=40
		enemy.height=20
		enemy.x = math.random(800,1000)
		enemy.y = math.random(150,450)
		enemy.speed = 20
		table.insert (enemies, enemy)

	end
end

function love.update(dt)
	if gameover ~= ("true") then
		if love.keyboard.isDown("left") then
			hero.x = hero.x - hero.speed*dt
		elseif love.keyboard.isDown("up") then
			hero.y = hero.y - hero.speed*dt
		elseif love.keyboard.isDown("down") then
			hero.y = hero.y + hero.speed*dt
		elseif love.keyboard.isDown("right") then
			hero.x = hero.x + hero.speed*dt
		end

		for i,v in ipairs(enemies) do

			--let them move
			v.x = v.x - (enemy.speed+0.3*score)*dt

			--stop the game when they reach the edge
			if v.x <= 0 then
				gameover = ("true")
			end
		end

		local remEnemy = {}
		local remShot = {}

		--update those shots
		for i,v in ipairs(hero.shots) do

			--move them across
			v.x = v.x + 100*dt

			-- Remove non-visible shots
			if v.x < 800 then
				table.insert(remShot, i)
			end

			-- check for collision with enemies
			for ii,vv in ipairs(enemies) do
				if CheckCollision(v.x,v.y,2,5,vv.x,vv.y,vv.width,vv.height) then
					-- mark that enemy for removal
					table.insert(remEnemy, ii)
					--generate a new one
					i=i+1
					enemy = {}
					enemy.width=40
					enemy.height=20
					enemy.x = math.random(800,1000)
					enemy.y = math.random(150,450)
					enemy.speed = 20
					table.insert (enemies, enemy)

					-- mark the shot to be removed
					table.insert(remShot, i)

				end
			end
		end

		-- remove the marked enemies
		for i,v in ipairs(remEnemy) do
			table.remove(enemies, v)
			score = math.floor(score + 5 + enemy.speed/1000)
		end

		--remove the shot
		for i,v in ipairs(remShot) do
			table.remove(hero.shots, v)
		end

		--create new enemy

	end

end

function love.draw()
	--let's draw some ground
	love.graphics.setColor(255,255,255,255)
	love.graphics.rectangle("fill", 0, 500, 800, 100)

	--let's draw some sky
	love.graphics.setColor(255,255,255,255)
	love.graphics.rectangle("fill", 0, 0, 800, 100)


	--how to play the game
	love.graphics.setColor(0,0,0,255)
	love.graphics.print("Stop the bad guys from crossing the screen!", 10, 550)
	love.graphics.print("Arrow keys to move", 10, 565)
	love.graphics.print("Press space when on top of an enemy to kill it", 10, 580)

	--let's draw our hero
	love.graphics.setColor(255,255,255,255)
	love.graphics.rectangle("fill", hero.x, hero.y, hero.width, hero.height)

	-- let's draw some enemies
	love.graphics.setColor(255,255,255,255)
	for i,v in ipairs(enemies) do
		love.graphics.rectangle("fill", v.x, v.y, v.width, v.height)
	end

	-- What are the scores
	love.graphics.setColor(0,0,0,255)
	love.graphics.print("Score:", 10, 10)
	love.graphics.print(score, 100, 10)


	-- let's draw our shots
	love.graphics.setColor(255,255,255,255)
	for i,v in ipairs(hero.shots) do
		love.graphics.rectangle("fill", v.x, v.y, 2, 2)
	end

	if gameover == ("true") then
		love.graphics.print("YOU LOSE!", 370, 295)
	end
end

function shoot()
	local shot = {}
	shot.y = hero.y + hero.height/2
	shot.x = hero.x
	table.insert(hero.shots, shot)
end

function love.keyreleased(key)
	if (key == " ") then
		shoot()
	end
	if(key == "f") then
		love.graphics.toggleFullscreen()
	end
end

function love.keypressed(k)
	if k == 'escape' then
		love.event.push('q') --quit the game
	end
end

function CheckCollision(box1x, box1y, box1w, box1h, box2x, box2y, box2w, box2h)
    if box1x > box2x + box2w - 1 or -- Is box1 on the right side of box2?
       box1y > box2y + box2h - 1 or -- Is box1 under box2?
       box2x > box1x + box1w - 1 or -- Is box2 on the right side of box1?
       box2y > box1y + box1h - 1    -- Is b2 under b1?
    then
        return false                -- No collision. Yay!
    else
        return true                 -- Yes collision. Ouch!
    end
end

Code: Select all

-- At the top of love.update
function love.update(dt)
	if paused then return end
	-- Your normal code goes here
end

-- Press the P key to toggle pause
function love.keypressed(k)
	if k == "p" then paused = not paused end
end

Code: Select all

love.filesystem.load("main.lua")() love.load()

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json=require 'dkjson'
--save:
serialized=json.encode(GameState)
io.open('savedgame.json', 'w'):write(serialized)
--load
gameInit(json.deocde(io.open('savedgame.json', 'r'):read('*a')))