The Powder Toy

kingcute50

My scripts: http://pastebin.com/uBfpvKgr

Can you explain why this doesn't work?

MasterMind555

Let's debug this together:

Did it give you any errors? Those are rather helpful when you are trying to know why your program doesn't work.

> Apparently, it didn't

Okay, then let's see what is executed first when the file is ran.

> "tpt.register_step(blah)"

So that registers the function "blah" to be executed constantly, let's see what that function does

> "dofile("bgEdit.lua")"

The function 'blah' executes our file again, it would be much wiser to create a function to do what we want to do, and then register it or just call it.

So it would give us

function blah()

for x = 50,160 do

for y = 70,180 do

tpt.drawpixel(x,y,math.random(0,255),math.random(0,255),math.random(0,255))

end

end

end

tpt.register_step(blah)

This makes the code much simpler to use and to debug.

Also, you don't explain what exactly doesn't work.

kingcute50

Oh nevermind.

The tpt.register_step(blah) part was missing.

Sorry about that but thanks for the tips in debugging.

jacob1


    --kingcute50 in Powder Toy :D nvm
    --roblox username: king2218
    --very simple background editing in tpt
    function blah()
            tpt.drawtext(200,200,"Edited Background!",math.random(0,255),math.random(0,255),math.random(0,255))
            for x = 50,160 do
            for y = 70,180 do
                    tpt.drawpixel(x,y,math.random(0,255),math.random(0,255),math.random(0,255))
            end
    end
    end
    tpt.register_step(blah)

This will work, you only need to make the area larger to cover more of the screen. You were trying to call dofile everyframe, and then re-register a step too. Once you register a step, it will be called every frame, you don;t have to do anything extra.

kingcute50

Just one more question,

What is the length and the width of the screen in tpt?

jacob1

The width is 611 (628 total), and the height is 383 (423 total), depending on if you want to affect the entire screen, or just the simulation area.

kingcute50

Thanks for that.

I made something:

function blah()
	for x = -3,3 do
		for y = -3,3 do
			tpt.drawpixel(tpt.mousex + x,tpt.mousey + y,255,255,0)
		end
	end
end

tpt.register_step(blah)

It follows the mouse. XD

Background edit