LÖVE

Code: Select all

 
 	d = posInitial + Vel*time --this uses vectors
 	--this determines displacement on each axes seperatly
 	dx = xInitial + Velx*time 
 	dy = yInitial + Vely*time 
 	
 	--heres how to calculate Velocity 
 	vel = velinitial + at
 	
 	--these formulas can be found by googling along with formulas for friction and such.
 	

Code: Select all

	--x and y initial can be our players pos at that frame. 
	--Velocity is your velocity from the previous frame with acceleration added to it.
	--acceleration will be how you can control the player or entity. 
	--t will be deltaTime.
	
	local player = {
		x = 0,
		y = 0,
		velx = 0,
		vely = 0,
		accelerationx = 0, 
	}
	
	function love.update(dt)
		player.accelerationx = 0
		player.accelerationy = 0
		-- by controlling acceleration we control the player
		if love.keyboard.isDown('a') then
			player.accelerationx = -50
		elseif  love.keyboard.isDown('d') then
			player.accelerationx = 50
		end
		
		--first calculate x velocity
		player.velx = player.velx + player.accelerationx*dt
		--we use gravity as y acceleration.
		player.vely = player.vely + 9.8*dt --assuming we are using meters, gravity is 9.8 
		
		--then we calculate the new x and y.
		player.x = player.x + player.velx*dt
		player.y = player.y + player.vely*dt
	end
	
	function love.draw()
		love.graphics.rectangle("fill",player.x,player.y,20,20)
	end