random walker

randomwalk.lua

width = 640
height = 360

function newWalker()
    return { x=width/2, y=height/2 } 
end

function love.load()
    love.graphics.setMode(width, height, false, false, 0)
    walker = newWalker()
    canvas = love.graphics.newCanvas(width, height)
end

function love.update(dt)
    local incx, decx, incy = 0.25, 0.50, 0.75

    local mouseX, mouseY = love.mouse.getPosition()
    if mouseX < walker.x then
        incx = incx - 0.01
    else
        incx = incx + 0.01
    end

    if mouseY < walker.y then
        incy = incy - 0.01
    else
        incy = incy + 0.01
    end
    
    local choice = math.random()
    if choice < incx then
        walker.x = walker.x + 1
    elseif choice < decx then
        walker.x = walker.x - 1
    elseif choice < incy then
        walker.y = walker.y + 1
    else
        walker.y = walker.y - 1
    end

    love.graphics.setCanvas(canvas)
    love.graphics.point(walker.x, walker.y)
    love.graphics.setCanvas()
end

function love.draw()
    love.graphics.draw(canvas, 0, 0, 0, 1, 1, 0, 0)
end