LÖVE

I have a basis problem that I can't seem to fix. I want to translate the 'camera' so the sprite is exactly in the middle no matter if the sprite is moving or jumping.

I am using love.physics.

Currently my sprite is a 30 by 30 block that can move to the right and the left as well as jump.
My screen is 850 by 650.

I conveniently have two variables, px and py being the sprite's x and y position.

I have tried:
love.graphics.translate(px, py) , to no avail
love.graphics.translate(px+850/2, py+650/2) to no avail
and
love.graphics.translate(px-850/2, py-650/2) to no avail

How can I make it so the sprite will always be in the middle. The .love I included had the love.graphics.translate(px, py) being used.

Thanks, rbxkools

Edit: Attached the .love, sorry.

Looks like you forgot to include your .love

Honestly, just use the HUMP library: https://www.love2d.org/wiki/HUMP

It will save you so much time and effort; getting camera transforms right can be a massive pain in the ass. In HUMP you just set the camera x,y and do camera:attach() / camera:detach() when drawing non-ui stuff.

Ragzouken wrote:Honestly, just use the HUMP library: https://www.love2d.org/wiki/HUMP

It will save you so much time and effort; getting camera transforms right can be a massive pain in the ass. In HUMP you just set the camera x,y and do camera:attach() / camera:detach() when drawing non-ui stuff.

Try this one:
love.graphics.translate(SCREEN_WIDTH / 2 - (px - PLAYER_WIDTH / 2), SCREEN_HEIGHT / 2 - (py - PLAYER_HEIGHT / 2))

Hopefully obviously, just replace the capitalized variables with your variables. That should keep your character centered.


Of course, should you want to use HUMP, go for it.

Here's some math on how to center your character:

Your character's center is at position x,y and you want to center your character on point x2,y2.

You'll want to translate your character to the origin first: Next you translate your character to point x2,y2: or if you want to combine it in one step: Example: Your screen is 800x600, and you want to center your character at point 400,300. Your character is located at x,y. This is what you do:

I don't use love.translate very much, just some worldX, worldY, worldWidth, and worldHeight variables, and then adding those values to the coordinates of the stuff while drawing them using love.draw.

There is also gamera: viewtopic.php?f=5&t=12033