[STI] How to add map scrolling?

[ZacBytes]

Hi guys, I'm working on a top-down 2d game. I need the camera to follow WASD controls and also zoom in and out, but I'm not sure how to do that. I am using STI to draw the tiled map. Can anyone help me out?

Thanks!

[nequals30]

This tutorial for STI shows how to make the camera follow a player (see the draw section at the bottom).

The tutorial is a bit outdated (see this comment by Karai17). The right way to do it is essentially something like this:

Code: Select all

function love.draw()
	-- Scale world
	local scale = 2
	local screen_width  = love.graphics.getWidth()  / scale
	local screen_height = love.graphics.getHeight() / scale

	-- Translate world so that player is always centred
	local tx = math.floor(player.x - screen_width  / 2)
	local ty = math.floor(player.y - screen_height / 2)

	-- Draw (different from tutorial)
        map:draw(-tx, -ty, scale, scale)
end

Would make the camera centered on player.x and player.y. Then you could change the 'scale' variable to zoom in and out.