LÖVE

darkfrei wrote: ↑Tue Mar 16, 2021 3:19 pm
You can round your position after the moving, when the player don't press keys anymore. So the diagonal movement will be pretty smooth

placeholder wrote: ↑Tue Mar 16, 2021 3:30 pm

darkfrei wrote: ↑Tue Mar 16, 2021 3:19 pm
You can round your position after the moving, when the player don't press keys anymore. So the diagonal movement will be pretty smooth

This is what i'm doing in example 2, and the movement is not smooth. Is there something wrong with how i coded example 2?

darkfrei wrote: ↑Tue Mar 16, 2021 3:35 pm
I see the problem that you make x=x+dt*speed, but the minus by the y.
Also speed_x can be not same as speed_y.

placeholder wrote: ↑Tue Mar 16, 2021 3:39 pm

darkfrei wrote: ↑Tue Mar 16, 2021 3:35 pm
I see the problem that you make x=x+dt*speed, but the minus by the y.
Also speed_x can be not same as speed_y.

y is minus so that the rectangle moves upwards instead of down. this is not a problem.

speed_x and speed_y do not exist in the example so i'm not sure what you mean, and an object can certainly move in more than one direction with a single speed variable.

how -SPECIFICALLY - do i adjust example 2 to make the movement smooth?

darkfrei wrote: ↑Tue Mar 16, 2021 3:40 pm
I've updated this comment:
viewtopic.php?f=4&t=90455#p239262

placeholder wrote: ↑Tue Mar 16, 2021 3:52 pm
also, why does example 2 not work? other posters also suggested the solution that i tried to implement in example 2, but it's causing stuttery movement. did i code example 2 wrong? am i misunderstanding? why is example 2 not working?

darkfrei wrote: ↑Tue Mar 16, 2021 4:32 pm
rect.draw_y = math.floor(rect.y - 0.5) -- not sure, but you use negative y;

Also please test the code with positive y, maybe your error is here.

push = require "push"
screenWidth = 160
screenHeight = 120
push:setupScreen(screenWidth, screenHeight, screenWidth * 4, screenHeight * 4)
io.stdout:setvbuf("no")

-- please set EXAMPLE to 1 or 2
-- 1 generates smooth diagonal movement, but breaks if rect.speed is set to 25-ish or below
-- 2 works at slow speed, but generates stuttery movement at all speeds FOR SOME REASON??

EXAMPLE = 2

function love.load()
 rect = {
  x = 5,
  y = 5,
  width = 10,
  height = 10,
  draw_x = 5,
  draw_y = 5,
  speed = 40
  }
end
function love.update(dt)
  if EXAMPLE == 1 then
    --
    rect.x = rect.x + rect.speed * dt
    rect.y = rect.y + rect.speed * dt
    --
    rect.x = math.floor(rect.x + 0.5)
    rect.y = math.floor(rect.y + 0.5)
    --
    rect.draw_x = rect.x
    rect.draw_y = rect.y
    --
  elseif EXAMPLE == 2 then
    --
    rect.x = rect.x + rect.speed * dt
    rect.y = rect.y + rect.speed * dt
    --
    rect.draw_x = math.floor(rect.x + 0.5)
    rect.draw_y = math.floor(rect.y + 0.5)
    --
  else
    love.event.quit()
  end
  
  print(delta)
  
end
function love.draw()
 push:start()
 love.graphics.rectangle("fill", rect.draw_x, rect.draw_y, rect.width, rect.height)
 push:finish()
end

placeholder wrote: ↑Tue Mar 16, 2021 4:59 pm do you have any other suggestions, hopefully suggestions that you test by running the code before making the suggestion?

placeholder wrote: ↑Tue Mar 16, 2021 7:25 pm yes, i am using that library. i have read that it is very commonly used, and i assumed that everyone here would have it already.

i'm sorry for not posting in the correct format, but i am just learning. i don't know how to export a file yet.

but the code is very short, and it takes only a second to copy paste into a new project folder with the push.lua file in it.