[SOLVED] setColor usage

[Styper]

Hello,

I'm new to LUA and Love2D and I'm getting this problem, I've tried searching for an answer already but no luck.

When I use graphics.setColor it's coloring my "background" image too.

Here's my code:

Code: Select all

function love.draw()
  love.graphics.scale(love.graphics.getWidth()/800, love.graphics.getHeight()/600)
  love.graphics.draw(background, 0, 0)
  
  love.graphics.setLineWidth(10)
  love.graphics.setLineStyle("smooth")
  
  love.graphics.setColor(255, 0, 0)
  love.graphics.line(200,50, 400,50, 500,300, 100,300, 200,50)
  
  love.graphics.setColor(0, 255, 0)
  love.graphics.line(250,50, 450,50, 550,300, 150,300, 250,50)

  love.graphics.setColor(0, 0, 255)
  love.graphics.line(350,50, 550,50, 650,300, 250,300, 350,50)
end

And here's the result:

Selection_148.png (481.46 KiB) Viewed 6061 times

How come the last color I apply (blue) gets applied to the whole screen? How can I prevent that?

On a side question, how come adding this line to love.draw() works but not love.resize(w, h)?

Code: Select all

love.graphics.scale(love.graphics.getWidth()/800, love.graphics.getHeight()/600)

Thanks in advance

[D0NM]

It wasn't applied to the whole screen. It just became the CURRENT colour in the end.
So, on the next iteration it is applied to love.graphics.draw(background, 0, 0)

Be sure to set WHITE colour before drawing your BG picture.

read manual ^__^

[Styper]

It wasn't applied to the whole screen. It just became the CURRENT colour in the end.
So, on the next iteration it is applied to love.graphics.draw(background, 0, 0)

Be sure to set WHITE colour before drawing your BG picture.

read manual ^__^

Thank you very much, it worked.

On a side question, how come adding this line to love.draw() works but not love.resize(w, h)?

Code: Select all

love.graphics.scale(love.graphics.getWidth()/800, love.graphics.getHeight()/600)

Do you also know the answer to this question?

[pgimeno]

love.resize is not a function that you call. It's a callback that gets called when the window is resized (typically by using the window resizing handles that your window manager provides), to notify your code that the window size has changed.

If you mean that love.graphics.scale doesn't work when you use it in the love.resize event, that's because right before calling love.graphics.draw, the transform is reset.

[Styper]

If you mean that love.graphics.scale doesn't work when you use it in the love.resize event, that's because right before calling love.graphics.draw, the transform is reset.

Thank you, that settles it!