Lua Programming Help Thread

[Aphonia]

Is this kind of like what you are looking for, pspaquaforce?

Spoiler for function:

if meatwad.x > shake.x then
shake.x=shake.x+1
end
if meatwad.x < shake.x then
shake.x=shake.x-1
end

As a function:

function move(player,enemy)
if player.x > enemy.x then
enemy.x=enemy.x+1
end
if player.x < enemy.x then
enemy.x=enemy.x-1
end
end

Called as, in this case:

move(meatwad,shake)

i only have one while and thats at the first while true do loop
and i just checked every if function they alll have ends

Use trial and error (or post your code).

EDIT: To below:

Dude, It you cant edit the template i gave you, You shouldnt be coding, Unless your copying and pasting?

That'd be silly.

[Anti-QuickJay]

Dude, It you cant edit the template i gave you, You shouldnt be coding, Unless your copying and pasting?

[youresam]

Dude, It you cant edit the template i gave you, You shouldnt be coding, Unless your copying and pasting?

Give me a coder who came after evil-mana was created and doesnt do that, and I will give you a dollar.

[Aphonia]

Give me a coder who doesn't do that and came after evil-mana and I will give you a dollar.

A good coder?

[Anti-QuickJay]

Tactical Pinguin.
I will be waiting for my dollar :)

[BlackShark]

Damn it, Anti beat me to the punch

[Anti-QuickJay]

NVM, I forgot about his Chase the penguin game.

[BlackShark]

mmm I didn't copy and paste any thing with PvP Pong, but then again, its only Pong.....yup, hard to find one :S

[Anti-QuickJay]

Sorry, You cant count :9
But your an awesome coder!

[TacticalPenguin]

Hey anti, I guess that chance at getting rid of the sig limit just left. FFS I was a noob back then, look what I've made/am making now.

[Anti-QuickJay]

But you dint arrive AFTER evilmana.com
Come on, Just put the sig limit to 150, Thats BS

[TacticalPenguin]

Yea I did.

[eyece]

how do you find the point where 2 lines intercept?

[Access_Denied]

how do you find the point where 2 lines intercept?

That's basic math. You have to know the endpoints. Then you find the equations and set them equal to each other. Quick sample.

Endpoints:
(0,300),(300,0) - (1,1),(401,201)

Slope Forumula(Find slope of lines):
y2-y1
_____
x2-x1

0-300
_____  slope = -1
300-0  

201-1
_____  slope = 1/2
401-1

Point Slope Forumlua:
y - y1 = m(x - x1)

y - 300 = -1(x - 0)
y = -x + 300

y - 1 = (1/2)(x - 1)
y = .5x + .5

Now set them equal to each other.

-x + 300 = .5x + .5
299.5 = 1.5x
199.666 = x

Now substitute that in for x to get the y coordinate:
y = .5(199.666) + .5
y = 100.333

Point where they cross:
(199.666,100.333)

There might be an easier way, I don't know. This really isn't that hard. It just looks like a lot of work.

[eyece]

... you killed my brain.

[Access_Denied]

How old are you? Because this is like 7th grade stuff.

[Grimfate126]

... you killed my brain.

you dont understand that?

wow, i really dont think you're ready for programming yet.

wait till 8th grade atlest. learn algebra.

[%chrono trigger%]

lol anyway is there a tut or do you guys have an example of how to load a file if my player collidies with an image?

[Access_Denied]

if (player collides) then
     file = io.open("myfile.txt","r")
     text = file:read()
     file:close()
end

[%chrono trigger%]

if (player collides) then
     file = io.open("myfile.txt","r") <-----
     text = file:read()
     file:close()
end

ok can you tell me what the lines of code with the arrows mean?
and what would I put in here -----> (player collides)? the 2 images?

[Anti-QuickJay]

You have to edit this part

("myfile.txt","r")

myfile.txt - name of file
r - r means it will read the file

*n - reads a number and returns it. ex: file.read("*n")
*a - reads the entire file from the current position. ex: file.read("*a")
*l - (default) - reads the next line, returns nil on End of File (EOF). ex: file.read("*l")
number - returns a string with up to that many characters in it, or nil on EOF. ex: file.read(5)

Heres a quick copy and paste from evilmana.com
http://evilmana.com/tutorials/lua_tutorial_09.php

[%chrono trigger%]

i used that but it said a ')' was neaded near 'collides'
that really doesnt make sense?

[Access_Denied]

You should honestly read some lua tuts before starting. Not knowing collision or file io tells me you either didn't read them, or only read to printing text. :/

[%chrono trigger%]

what do you mean? i read all the evilmana tuts, but just had questions because they werent very in depth. Besides
i have a fully functional game with 2 images and one player the guy jumps over the 2 mines and if he touches them he returns to the beggining. i get collision i just asked for a tut on how to open a file when a collsion occurs.
forget i asked this isnt helping, but thanks to everyone foor helping me

[Access_Denied]

what do you mean? i read all the evilmana tuts, but just had questions because they werent very in depth. Besides
i have a fully functional game with 2 images and one player the guy jumps over the 2 mines and if he touches them he returns to the beggining. i get collision i just asked for a tut on how to open a file when a collsion occurs.
forget i asked this isnt helping, but thanks to everyone foor helping me

Well, if you read the evilmana tut on collisions, then you shouldn't have had the need to ask this question.

ok can you tell me what the lines of code with the arrows mean?
and what would I put in here -----> (player collides)? the 2 images?

[%chrono trigger%]

it says nothing about the function to open a file from a collision
i was assuming it was this part: (object,object2) but wasnt sure so i asked to be sure before i add my own code to my game

[Anti-QuickJay]

You cant expect it to show you, You just have to put 2 and 2 together.

[Aphonia]

but wasnt sure so i asked to be sure before i add my own code to my game

The best way to learn (and really understand) is to experiment. Look at the apps that come with luaplayer for reference (Snake is really good). Ask for help when you've exhausted every idea you've had and mulled over your problem for a while.
My advice, anyway.

[emericaska8r]

yes, expirementing is the best way to understand!

[pspaquaforce]

:ROFL: my game is shizy and pointless:ROFL:
hey Aphonia how long did it take you to be a decent coder?