[Solved] Help with basic platformer jumping

[Fang86]

I just need help with basic platformer jumping for my game (newbie lua coder in general)
Code: http://pastebin.com/8FcwvMYJ
Beaver.png(Yes it's jsut a square): https://love2d.org/imgmirrur/pR1mzNo.png

[redsled]

It'd help more if you attached the .love

[Fang86]

It'd help more if you attached the .love

Okay, and I have updated it a bit but here it is.

[bobbyjones]

That .love shows nothing for me, but the menu. I looked at the code and well it shows that your new to lua. First thing i would say is don't use loveframes for your GUIs. I saw you had another thread where you had an issue with them. I recommend just coding your own until you become more experienced. making a simple button is easy. Also you seem to set fullscreen every frame iirc. That isn't the best way to do things.
this bit:

Code: Select all

elseif love.keyboard.isDown("f3") and windowed == true and gamestate == "paused" or gamestate == "startmenu" then
    fullscreen = true
    windowed = false
elseif love.keyboard.isDown("f3") and fullscreen == true and gamestate == "paused" or gamestate == "startmenu" then
    windowed = true
    fullscreen = false
end

can become this:

Code: Select all

elseif love.keyboard.isDown("f3") and (gamestate == "paused" or gamestate == "startmenu") then
    fullscreen = not fullscreen
    love.window.setFullscreen(fullscreen)
end

The way that works is that it just toggles the value of fullscreen. not returns the opposite of the value. Also your conditions were a little messed up after a removed the windowed variable so i just had to add parenthesis.

To make a character jump you need y velocity, the jump impulse amount i guess(idk what to call it) and gravity

Code: Select all

local velY = 0
local y  = 300
local ground = 0
local jumpImpulse = 50
local gravity = 9.8 

once you have those you need to update your physics every frame

Code: Select all

y = y + velY*dt
velY = velY - gravity*dt

if y < ground then 
    y = ground
end

then you to get the key input

Code: Select all

function love.keypressed(key) 
    if key == " " then
        velY = velY + jumpImpluse
    end
end

That is very basic example of how to make something jump. I left some of it for you to have fun and discover lol. There is a few issues with that very basic example but im sure you will find them and fix them.

[Fang86]

-Snip-

Thank you so much! Also when I put the .love there I forgot to remove the start menu, I added a fully functional gui now