Lua Help

[vision]

Hey there can you tell me whats wrong with this script

-- My First Lua Program
--
--
-- ******* Variables ********
green = Color.new(0,255,0)
red = Color.new(255,0,0)
blue = Color.new(0,0,255)
--
--
--***Button Inputs
upPressed = 'Up'
downPressed = 'Down'
leftPressed = 'Left'
rightPressed = 'Right'
LPressed = 'L'
--
--
--*****Main Loop******
while true do
pad = Controls.read()
screen:clear()
screen.waitVblankStart()
screen.flip()
end
--
--
--*****Button Print******
if pad:up() then
screenrint(100,100,upPressed,green)
end
if pad:down() then
screenrint(100,100,downPressed,green)
end
if pad:left() then
screenrint(100,100,leftPressed,green)
end
if pad:right() then
screenrint(100,100,rightPressed,green)
end
if pad:l() then
screenrint(100,100,LPressed,green)
end
if pad:r() then
screenrint(100,100,'R',red)
end
if pad:triangle() then
screenrint(100,100,'TRIANGLE',red)
end
if pad:circle() then
screenrint(100,100,'CIRCLE',red)
end
if pad:cross() then
screenrint(100,100,'X',red)
end
if pad:square() then
screenrint(100,100,'SQUARE',red)
end



lol is : p but not spaced lol



It is suppose to write stuff when you press up,down,right etc.. on ur psp but it doesnt work i just get a black screen anyone help?

[Gizmo356]

you did the code rite but in the wrong place it should be like this

-- ******* Variables ********
green = Color.new(0,255,0)
red = Color.new(255,0,0)
blue = Color.new(0,0,255)
--
--
--***Button Inputs
upPressed = 'Up'
downPressed = 'Down'
leftPressed = 'Left'
rightPressed = 'Right'
LPressed = 'L'
--
--
--*****Main Loop******
while true do
pad = Controls.read()
screen:clear()
--
--
--*****Button Print******
if pad:up() then
screenrint(100,100,upPressed,green)
end
if pad:down() then
screenrint(100,100,downPressed,green)
end
if pad:left() then
screenrint(100,100,leftPressed,green)
end
if pad:right() then
screenrint(100,100,rightPressed,green)
end
if pad:l() then
screenrint(100,100,LPressed,green)
end
if pad:r() then
screenrint(100,100,'R',red)
end
if pad:triangle() then
screenrint(100,100,'TRIANGLE',red)
end
if pad:circle() then
screenrint(100,100,'CIRCLE',red)
end
if pad:cross() then
screenrint(100,100,'X',red)
end
if pad:square() then
screenrint(100,100,'SQUARE',red)
end
screen.waitVblankStart()
screen.flip()
end

[vision]

It worked thanks man, but my i ask why it has to be in that order and what does screen.waitVblankStart()
do?

[splodger15]

You can have it in a loop so

while true do
screen.waitVblankStart()
end

Also you can have screen.waitVblankStart() as

This is taken from my PSP Turismo

----------detect other cars collision--------------
function detectCollision(player, opponent)
if (player.x + character:width() > opponent.x) and (player.x < opponent.x + opponent.pic:width()) and (player.y + character:height() > opponent.y) and (player.y < opponent.y + opponent.pic:height()) then
screen.waitVblankStart(60)
end
end

the screen.waitVblankStart(60) is when the car hit another car it is a 60 second wait to move on

Someone else may be able to explain better

[vision]

Hmm i see, but when i had it in a loop

--*****Main Loop******
while true do
pad = Controls.read()
screen:clear()
screen.waitVblankStart()
screen.flip()
end


it would not work

If that what you mean

[splodger15]

This should be Ok

-- ******* Variables ********
green = Color.new(0,255,0)
red = Color.new(255,0,0)

-- ******* Button Inputs ********
upPressed = 'Up'
downPressed = 'Down'
leftPressed = 'Left'
rightPressed = 'Right'
LPressed = 'L'

-- *****Main Loop******
while true do
screen:clear()

pad = Controls.read()

if pad:up() then
screenrint(100,100,upPressed,green)
end

if pad:down() then
screenrint(100,100,downPressed,green)
end
if pad:left() then
screenrint(100,100,leftPressed,green)
end
if pad:right() then
screenrint(100,100,rightPressed,green)
end
if pad:l() then
screenrint(100,100,LPressed,green)
end

if pad:r() then
screenrint(100,100,'You are pressing the "R" button',red)
end

if pad:triangle() then
screenrint(100,100,'You are pressing the "TRIANGLE" button',red)
end

if pad:circle() then
screenrint(100,100,'You are pressing the "CIRCLE" button',red)
end

if pad:cross() then
screenrint(100,100,'You are pressing the "X" button',red)
end

if pad:square() then
screenrint(100,100,'You are pressing the "SQUARE" button',red)
end

screen.waitVblankStart()
screen.flip()
end

You do not need a blue variable if you are not using it

[vision]

Yeah i know i was just practicing to get the color variable thingy stuck in my head lol anyways thanks

also i pmed you

[Gizmo356]

If you need help aim me.

[vision]

Oh you use aim me too thanks ill keep in mind

[Gizmo356]

Yeah I have msn too so if you need help HIT ME UP!

Lol!