Lua Programming Help Thread

Zitat:

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Zitat von PSPduh

Now that I did, it works, but it goes up WAY to fast. That was the point of that oldpad. But now that its out, it works...Anyway to make it go slower without the oldpad, or a way to work it with the oldpad? Because besides that, my app does not have any other problems. Once that's worked out, then all I have to do is some more coding.

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just before (in other words RIGHT ABOVE) the 'end' for each of your 'if' loops. put a "screen.waitVblankStart(5 )".

put a small number in the parantheses, whichever you want. that should slow things down to how you want.

so it would look like this:

Code:

---

if pad:up() then
r = r + 1
screen.waitVblankStart(5)
end

if pad:down() then
r = r + 5
screen.waitVblankStart(5)
end

if pad:right() then
r = r + 20
screen.waitVblankStart(5)
end

if pad:left() then
r = r + 10
screen.waitVblankStart(5)
end

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SO MUCH THANKS! And also, another problem. (I never stop having problems) This should be the last one. In my code I have:

Code:

---

r = 0
d = r*2

function caf()
x = r*r*3.14
end

function cac()
y = d*3.14
end

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Yet as r increases, d stays the same. If i set r as 1, d would show up as d = 2, and never go up no matter how much r goes up. THis is the final problem, (I hope!)
THANKS again.

Zitat:

---

Zitat von PSPduh

SO MUCH THANKS! And also, another problem. (I never stop having problems) This should be the last one. In my code I have:

Code:

---

r = 0
d = r*2

function caf()
x = r*r*3.14
end

function cac()
y = d*3.14
end

---

Yet as r increases, d stays the same. If i set r as 1, d would show up as d = 2, and never go up no matter how much r goes up. THis is the final problem, (I hope!)
THANKS again.

---

can you post all the code again, i need to see it all in one place as it is. (its confusing going back and forth between posts to see where we are)

Whoops, here is the whole code:

Code:

---

red = Color.new(255,0,0)
yellow = Color.new(255, 255, 0)
blue = Color.new(0, 0, 255)
orange = Color.new(223, 88, 6)
grey = Color.new(94, 97, 111)
black = Color.new(0, 0, 0)
white = Color.new(255, 255, 255)
green = Color.new(0,255,0)

r = 0
d = r*2

function caf()
x = r*r*3.14
end

function cac()
y = d*3.14
end

while true do

screen:clear(green)

pad = Controls.read()

if pad:up() then
r = r + 1
screen.waitVblankStart(7)
end

if pad:down() then
r = r + 5
screen.waitVblankStart(7)
end

if pad:right() then
r = r + 20
screen.waitVblankStart(7)
end

if pad:left() then
r = r + 10
screen.waitVblankStart(7)
end

if r > 500 then
r = 0
end

if pad:cross() then
caf()
screen:print(100, 100, 'Circles area = ' .. x, black)
end

if pad:square() then
cac()
screen:print(10,10,'Circles circumfence = ' .. y, black)
end

screen:print(10,20,"Diameter = " .. d, black)
screen:print(10,10,"Radius = " .. r, black)

oldpad = pad

screen.waitVblankStart()
screen.flip()
end

---

Now you can kinda see what I am trying to make.

Zitat:

---

Zitat von PSPduh

Whoops, here is the whole code:

Code:

---

red = Color.new(255,0,0)
yellow = Color.new(255, 255, 0)
blue = Color.new(0, 0, 255)
orange = Color.new(223, 88, 6)
grey = Color.new(94, 97, 111)
black = Color.new(0, 0, 0)
white = Color.new(255, 255, 255)
green = Color.new(0,255,0)

r = 0
d = r*2

function caf()
x = r*r*3.14
end

function cac()
y = d*3.14
end

while true do

screen:clear(green)

pad = Controls.read()

if pad:up() then
r = r + 1
screen.waitVblankStart(7)
end

if pad:down() then
r = r + 5
screen.waitVblankStart(7)
end

if pad:right() then
r = r + 20
screen.waitVblankStart(7)
end

if pad:left() then
r = r + 10
screen.waitVblankStart(7)
end

if r > 500 then
r = 0
end

if pad:cross() then
caf()
screen:print(100, 100, 'Circles area = ' .. x, black)
end

if pad:square() then
cac()
screen:print(10,10,'Circles circumfence = ' .. y, black)
end

screen:print(10,20,"Diameter = " .. d, black)
screen:print(10,10,"Radius = " .. r, black)

oldpad = pad

screen.waitVblankStart()
screen.flip()
end

---

Now you can kinda see what I am trying to make.

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do the circle's diameter and circumference show correctly? (i cant find my PSP's usb wire so i cant test it)

Yeah, both of them show correctly. It's just that I would like them to d to increase as r is. It would make the app much simpler.

I really dont know..all the coding looks fine. dont know why it doesnt work.

Meh, then thanks anyway. I could work around that...Do you know how to code menus? Because if you do, then just PM me, because I could use you for this app.

JW, In LUA is it possible to find out the PSP Username?