LÖVE

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-- Load other classes I need.
camera = require('camera')

function love.load(arg)
	-- We'll change the default background colour to something a bit more cute. (i.e. Not black.)
	love.graphics.setBackgroundColor(25, 25, 25)
	-- Making the player entity. (Space ship.)
	player = {
		x = 344, -- X location.
		y = 300, -- Y location.
		v = 0,   -- Player velocity.
		img = nil, 	-- Will load later.
		w = nil, -- Width of image.
		h = nil  -- Height of image.
	}
	player.img = love.graphics.newImage('assets/entities/player_ship.png')
	player.w, player.h = player.img:getDimensions()
	-- End making player.
	-- Make background quad and image.
	bgImg  = love.graphics.newImage('assets/bg.png')
	-- Background quad coordinates.
	quadCoord = {
		x = 0,
		y = 0
	}
	bgQuad = love.graphics.newQuad(0, 0, 896 + bgImg:getWidth(), 600 + bgImg:getHeight(), bgImg:getDimensions())
	bgImg:setWrap('repeat', 'repeat')
	-- Init camera.
	cam = camera(player.x, player.y)
end

function love.update(dt)
	-- Lets get the location of the mouse. (Angle compared to the location of our player.)
	mouse_angle = math.atan2(love.mouse.getY() - player.y, love.mouse.getX() - player.x)
	-- Move the ship in the direction we're facing. Using acceleration and stuff.
	-- Normal move.
	if love.keyboard.isDown('w') then
		if player.v < 1000 then
			player.v = player.v + 100
			if player.v > 1000 then
				player.v = 1000
			end
		end
		quadCoord.x = (quadCoord.x - math.cos(mouse_angle) * player.v * dt) % bgImg:getWidth()
		quadCoord.y = (quadCoord.y - math.sin(mouse_angle) * player.v * dt) % bgImg:getHeight()
	else
		if player.v > 0 then
			player.v = player.v - 10
		end
		quadCoord.x = (quadCoord.x - math.cos(mouse_angle) * player.v * dt) % bgImg:getWidth()
		quadCoord.y = (quadCoord.y - math.sin(mouse_angle) * player.v * dt) % bgImg:getHeight()
	end
	cam:lockPosition(player.x, player.y)
end

function love.draw(dt)
-- Draw background.
	love.graphics.draw(bgImg, bgQuad, quadCoord.x - bgImg:getWidth(), quadCoord.y - bgImg:getHeight())
	-- Camera starts.
	cam:attach()
	-- Draw player.
	love.graphics.draw(player.img, player.x, player.y, mouse_angle, 1, 1, player.w / 2, player.h / 2)
	-- Camera ends. Draw any overlayed/UI stuff past this point.
	cam:detach()
end

Code: Select all

-- Create our object named 'sphere'
local sphere = {
   x  = 0,
   y  = 0,
   vx = 100,
   vy = 10,
}

-- love.update function. This gets called every frame and performs all the logic.
function love.update(dt)
   -- Take the current position, and add the velocities onto them.
   sphere.x = sphere.x + (sphere.vx * dt) -- We multiply by 'dt' so they move equally fast regardless of framerate.
   sphere.y = sphere.y + (sphere.vy * dt)
end

-- love.draw function. This gets called every frame and draws everything.
function love.draw()
   love.graphics.circle("fill", sphere.x, sphere.y, 50) -- Draw our sphere
end