Lua Programming Help Thread

Zitat:

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Zitat von Glynnder

BTW, thats why the maximum fps you get see on a screen is 60 correct?

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Yes it is.

Zitat:

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Zitat von head_54us

SG57, do you know if the string.gmatch function is implemented in the latest PSP version of Luaplyer. I currently only have access to the Windows version and it doesn't seem to have it.


Use the millisecond timer and every time you get the number of ms from the timer, divide by 1000 to get the number of seconds.

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i cant display it on the screen tho.. i dunno what the variable is called, i dont really understand the link

Blah = Timer.new() -- Creates a new timer object called Blah. Starts from 0
Blah:start() -- Starts the timer
NumberOfMs = Blah:time() -- Gets the number of milliseconds from the timer since the timer started + the start value
NumberOfSec = math.floor(NumberOfMs /1000) -- Converts from Ms to Secs rounded down.

Zitat:

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Zitat von head_54us

Blah = Timer.new() -- Creates a new timer object called Blah. Starts from 0
Blah:start() -- Starts the timer
NumberOfMs = Blah:time() -- Gets the number of milliseconds from the timer since the timer started + the start value
NumberOfSec = math.floor(NumberOfMs /1000) -- Converts from Ms to Secs rounded down.

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thanx, so i use number of sec as the variable? and does it stop at 0?

Don't copy and paste that code into your program. I only wrote it to describe how to call and use the functions. You have to apply that knowledge to your code.

timer dont count down:

Code:

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levelTimer = Timer.new(100000)
levelTimer:start()
red = Color.new(255,0,0)
background = Image.load("cloud.png")
smiley = Image.load("smile.png")
sad = Image.load("sad.png")
math.randomseed(os.time())
rx = math.random(0,442)
ry = math.random(0,234)
boost = 1000
score = 0
x = 0
y = 5
NumberOfMs = levelTimer:time()
NumberOfSec = math.floor(NumberOfMs/1000)

function booster()
if boost < 1 then
boost = 0
end
boost = boost - 1
end

function CheckBoxCollisionHack()
        if ((x + 36) > rx) and (x < (rx + 36)) then
                if ((y + 36) > ry) and (y < (ry + 36)) then
                        return true
                end
        end
       
        return false
end

while true do

screen:clear()
screen:blit(0,0,background)
screen:print(0,263,"Press X for SPEED BOOST",red)
screen:print(0,0,"Boost Left: "..boost ,red)
screen:print(0,7,"Time: "..NumberOfSec,red)
screen:blit(x, y, smiley)
screen:blit(rx, ry, sad)

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They count up. These two lines are also incorrect in terms of where you put them in your code

Code:

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NumberOfMs = levelTimer:time()
NumberOfSec = math.floor(NumberOfMs/1000)

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Zitat:

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Zitat von head_54us

They count up. These two lines are also incorrect in terms of where you put them in your code

Code:

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NumberOfMs = levelTimer:time()
NumberOfSec = math.floor(NumberOfMs/1000)

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how the hell do i get it to count down? i got it to count up now...

Code:

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TotalTimeLimit = 100000

-- Later on in your code
NumberOfMs = levelTimer:time()
NumberOfSec = math.floor(NumberOfMs/1000)
TimeLeft = TotalTimeLimit - NumberOfSecs

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Seriously, these are really simple abstract problems that you should be able to solve yourself.

Zitat:

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Zitat von head_54us

Code:

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TotalTimeLimit = 100000

-- Later on in your code
NumberOfMs = levelTimer:time()
NumberOfSec = math.floor(NumberOfMs/1000)
TimeLeft = TotalTimeLimit - NumberOfSecs

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Seriously, these are really simple abstract problems that you should be able to solve yourself.

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total time limit has to be 200, 10000 makes the time go to 9999 and count down.
i wanted it at 100 and down
problem i solved myself :P