Sorry for the venting. I think Codea is really neat. People can do super cool things with it. I just wish I understood it more, and that there was better explanation why you use certain code to do certain things. I will keep plugging along.

MAIN: http://pastebin.com/py8Ckt3Z TEST2:http://pastebin.com/1mUTVjgA

-Nicholas P.s.it may lag If you have an iPad 1 P.p.s. I will probably post up source for shell in a few days P.p.p.s Any reccomendations would be appreciated P.p.p.p.s sorry if I posted this in the wrong location

I will post a video tomorrow because I have worked a lot today to get to a stable build. The code is a bit to big to post(57,389 lines of code)

I plan to add: A campaign mode, A multiplayer mode, Zombies mode

The FPS is IPad 1-15, iPad 2-21, iPad 3-11

More soon!

(Feedback greatly appreciated!)

--# Main
function setup()
    local base = Base()
    base:incrementIntMember()
    print("----")
    local derived = Derived()
    derived:incrementIntMember()
end

--# Base
Base = class()

function Base:init()
    print("In Base:init()")
    self.i = 1
end

function Base:incrementIntMember()
    print("In Base:incrementIntMember()")
    self.i = self.i + 1
end
--# Derived
Derived = class(Base)

function Derived:init()
    print("In Derived:init()")
    Base:init(self)
    -- Also doesn't work
    --Base:init()
end

However, when I run it it gives the following output:

In Base:init()
In Base:incrementIntMember()
----
In Derived:init()
In Base:init()
In Base:incrementIntMember()
error: [string "Base = class()..."]:10: attempt to perform arithmetic on field 'i' (a nil value)
Pausing playback

It's not clear to me why 'self.i' is nil in the case where the object being called derives from the base. The base class' constructor (init) is being called from the derived class' constructor so 'self.i' is initialized. I'm guessing that perhaps there are two 'selfs' in this situation (one for the base part of the object and one for the derived part) but that is counter to my experience in other languages...

Any enlightenment would be appreciated!

 function setup()
    camspot = vec3(0,0,0)
parameter("distance",100,1000,440)
parameter("angle",0,360,45);    
parameter("topangle",-89,89,0)
parameter("fov",65,144,100)
parameter("camerax",-100,100,0)
parameter("cameray",-100,100,0)
parameter("cameraz",-100,100,0)
definefacerot()
watch("fps")
noSmooth()

rectMode(CENTER)

end


function draw()


    background(134, 166, 179, 255)
    
    
    cam()
    
for i = -3,3 do
    for j = -3,3 do
    drawcube(i*12,0,j*12,red,12,24)

    end
    end
 drawcube(6,32,6,
"SpaceCute:Background",32,24,nil, CurrentTouch.x,CurrentTouch.y)
end
function definefacerot()
    
   red = setflat(color(255, 0, 0, 255))
blue = setflat(color(0, 0, 255, 255))
green = setflat(color(0, 255, 0, 255))
black =setflat(color(3, 3, 3, 255))
dark =setflat(color(33, 34, 35, 255))

local face = {

{90,1,0,0}, -- north     3
 {180,1,0,0}, --back   2
 {0}, --front        1

{270,0,1,0}, -- west     6
{90,0,1,0}, -- east      5
{270,1,0,0}, -- south    4

nil
}


cubefacerot= face
end

function setflat(culurr)
    
local cull = image(1,1)

cull:set(1,1,culurr)

return cull
end

function drawcube(xx,yy,zz,tex,size,shading,rra,rrb,rrc)
    if shading == nil then shading = 0 end
    pushMatrix()
    translate(xx,yy,zz)
    if rra == nil then else rotate(rra) end
     if rrb == nil then else rotate(rrb,1,0,0) end
     if rrc == nil then else rotate(rrc,0,0,1) end
    scale(size/64,size/64,size/64)
    pushMatrix()
    for i = 1,6 do
        pushMatrix()
rotate(unpack(cubefacerot[i]))
if shading > 0 then
        tint(255-(i)*shading) end
        translate(0,0,-32)
        sprite(tex,0,0,64)
        popMatrix()
--rect(i*111,0,99,99)
 end
noTint()
popMatrix()
popMatrix()
popMatrix()
end
    
    function cam() 
    
       camspot = vec3(camerax,cameray,cameraz)
    topangle = math.min(89.9,math.max(-89.9,topangle))
    fps = 0.1 * math.ceil( DeltaTime*600)
 --   rotate(yaw)
    pushMatrix()
    perspective(fov, WIDTH/HEIGHT)
    local camdown = vec2(distance/(fov/44),0):rotate(math.rad(topangle))
    
local camplane = vec2(camdown.x,0):rotate(math.rad(angle))

    camera(camplane.x+camspot.x,camdown.y+camspot.y,camplane.y+camspot.z, camspot.x,camspot.y,camspot.z, 0,4,0)
    
    end

--[[ Sine Console
* Processing: Creative Coding and
* Computational Art
* By Ira Greenberg */
* Ported to Lua by Jon Howard (techdojo@gmail.com)
* Original post http://processing.org/learning/trig/
--]]

local px, py, px2, py2
local angle = 0 
local angle2 = 0
local radius = 100
local frequency = 2
local frequency2 = 2
local x=0
local x2=0

function setup()
    displayMode(FULLSCREEN)
end

function draw()
    translate(-50,(HEIGHT/2)-radius/2)  -- move the drawing to the center of the screen
    background (127)
    noStroke()
    
    fill(255)
    ellipse(WIDTH/8, 75, radius, radius)
     
    --rotates rectangle around circle
    px = WIDTH/8 + math.cos(math.rad(angle))*(radius/2);
    py = 75 + math.sin(math.rad(angle))*(radius/2);
    rectMode(CENTER)
    fill(255, 0, 0, 255)
    rect (px, py, 10, 10)        -- draw the rect on the edge of the circle
    stroke(222, 0, 255, 255)
    strokeWidth(5)
    line(WIDTH/8, 75, px, py)
 
    angle2 = 0
    fill(0)
    -- draw static curve - y = sin(x)
    for i=1,WIDTH do
        px2 = WIDTH/8 + math.cos(math.rad(angle2))*(radius/2);
        py2 = 75 + math.sin(math.rad(angle2))*(radius/2);
        point(WIDTH/8+radius/2+i, py2)
        angle2 = angle2 - frequency2
    end

    -- send small ellipse along sine curve
    -- to illustrate relationship of circle to wave
    noStroke()
    fill(8, 0, 255, 255)
    ellipse(WIDTH/8+radius/2+x, py, 15, 15)
    angle = angle - frequency
    x = x + 1

    -- when little ellipse reaches end of window
    -- reinitialize some variables
    if (x>= WIDTH-60) then
        x = 0
        angle = 0
    end

    -- draw dynamic line connecting circular
    -- path with wave
    strokeWidth(3)
    stroke(0, 255, 66, 255)
    line(px, py, WIDTH/8+radius/2+x, py)

    -- output some calculations
    fill(0)
    textAlign(LEFT)
    text("y = sin x",   180, 225)
    text("px = " .. px, 180, 205)
    text("py = " .. py, 180, 185)
end

I have a recurrent problem in which I keep making errors, mainly logistic, but sometimes technical. But, I don't seem to know how to resolve some of them. Like the following - I have an array which keeps throwing up errors in use or in trying to print out the array. One of the elements in the array must be duff - but I can't find which one.

Here is an example of the array, trying to set up a 3D matrix. Is there any way in which we could get Codea to run through the procedure and print out to a file/screen so that I could identify the element. Instead I get the printout:

main.lua:27: attempt to concatenate field '?' (a nil value) - which is not very helpful - I need to trap the error.

function setup()
    --
    points = { x = {}, y = {}, z = {}}
    radius = 100
    antorad = math.pi/180
    index = 1
    for i = 0, 360, 30 do
        for j = 0, 360 do
            points.x[i] = radius * math.sin(i * antorad) * math.cos(j * antorad)
            points.y[i] = radius * math.sin(i * antorad) * math.sin(j * antorad)
            points.z[i] = radius * math.cos(i * antorad)
            index = index + 1
        end
    end

end

function draw()
    --
    for loop = 1, index do
        text("Array is "..loop.." x: "..points.x[loop].." y: "..points.y[loop].." z: "..points.z[loop], 100, 200+loop*20)
    end
end

May, or may not, be relevant but the code and error were taken from Love2D - which I tend to use for early trials.

Any suggestions?

Thanks.

Bri_G

:)

os.time seems to return time in seconds since the Unix epoch, it seems, but stored in a float. The precision of the float mantissa isn't enough, so os.difftime returns zero for small intervals.

os.clock returns weird things - at least they increase monotonically.

It would be nice to have a function that returns precise milliseconds since the start of the game (not the start of Codea).

Also the 'require' keyword is not available. again there is a specific reason (something to do withso e restriction or limit) or is something we could hope to have in future versions?

Anyway, if features like that would be enabled by modding the sandbox file, what could we expect? Everithing working? bugs? Unexpected behaviours? Has someone tried before? and more over, there would be problem to release a game with codea runtime libs in that case?

Pleased to say that codea seems fully capable of supporting dozens of thinking AIs at once in a complex environment....

A new video to show the project at 0.50. As per several suggestions, I'm going to add some additional challenges (Laser Skeet -- blast a set of fast moving targets, Maze Race -- be the first bot to reach the goal,, Chip Chase -- track down and collect wandering prizes) in addition to the standard "zap the other bot" exercise. That will mean some fairly big changes in the structure.

So I thought I'd show "classic" BC before I rip it apart. Comments not just welcome, but really really needed.

Original Post

After finally trying out the wonderful Cargo Bot, I got inspired to knock around my own drag and drop programming toy. Battle Chips is a new take on battling robot games going back to Robot Wars. It's incomplete, but after a long day trapped in waiting rooms, I think I made good progress.

Now I need some suggestions for additional programming chips, ways to implement varied bot hardware, and a system for exchanging bots with others.

function setup()
    parameter("x1",100,600,100)
    parameter("y1",100,600,100)
    parameter("x2",100,600,400)
    parameter("y2",100,600,400)
end

function draw()
    vec2a = vec2(x1,y1)
    vec2b = vec2(x2,y2)
    myangle = vec2a:angleBetween(vec2b)
    background(40, 40, 50)
    strokeWidth(5)
    stroke(0, 0, 0, 255)
    --print the target to point at
    ellipse(x1,y1,5,5)
    pushMatrix()
    --now I translate to where I want to draw my triangle
    --then I rotate to the angle
    --and draw 
    translate(x2,y2)
    rotate(math.deg(myangle))
    drawtriangle()
    popMatrix()
end

function drawtriangle()
    strokeWidth(8)
    stroke(255, 255, 255, 255)
    line(0,0,20,-60)
    line(20,-60,-20,-60)
    line(-20,-60,0,0)
end

Any tips appreciated, thanks.

function setup()
    parameter("red",0,255,244)
    parameter("green",0,255,100)
    parameter("blue",0,255,100)
    parameter("alpha",0,255,200)
    parameter("thickness",1,80,25)
    iparameter("cap",0,2,0)
    iparameter("feather",0,1,0)
    myDrawing=image(WIDTH,HEIGHT)
    myBack=image(WIDTH,HEIGHT)

end

function draw()
    local v,t,angle
    if(CurrentTouch.state==BEGAN or CurrentTouch.state==MOVING) then
        if(feather==1) then
            v = vec2(CurrentTouch.x,CurrentTouch.y)
                -vec2(CurrentTouch.prevX,CurrentTouch.prevY)
            angle = v:angleBetween(vec2(1,-1))
            t = thickness * math.abs(math.cos(angle))+5
        else 
            t = thickness
        end    
        strokeWidth(t)
        lineCapMode(cap)
        stroke(red, green, blue, 255)
        setContext(myDrawing)
        tint(255, 255, 255, 255)
        line(CurrentTouch.prevX,CurrentTouch.prevY,CurrentTouch.x,CurrentTouch.y)
    else
        setContext(myBack)
        tint(255, 255, 255, alpha)
        sprite(myDrawing,WIDTH/2,HEIGHT/2)
        setContext(myDrawing)
        background(0,0,0,0)
                
    end
    setContext()
    background(0, 0, 0, 255)
    tint(255, 255, 255, 255)
    sprite(myBack,WIDTH/2,HEIGHT/2)
    tint(255, 255, 255, alpha)
    sprite(myDrawing,WIDTH/2,HEIGHT/2)
end

BTW I'm a musician, did you notice :-)) ?

I'm quite stuck with my next bit of code:

displayMode(FULLSCREEN)


-- Use this function to perform your initial setup
function setup()
    pos = vec2(WIDTH/2, HEIGHT/2)
    speed = vec2(300, 134)
    time = 0
    center = vec2(WIDTH/2, HEIGHT/2)
    diameter = 750
end

-- This function gets called once every frame
function draw()
    -- This sets a dark background color 
    background(40, 40, 50)
    
    ellipse(center.x, center.y, diameter)

    -- This sets the line thickness
    strokeWidth(5)
    sprite("Planet Cute:Star", pos.x, pos.y)
    
    
    time = DeltaTime
   
    pos.x = pos.x + time * speed.x
    pos.y = pos.y + time * speed.y   

    -- if the new position is outside or on the ellipse
    if pos:dist(center) >= diameter/2 then
        -- calculate the new speed direction
        angle = math.atan2(pos.x-center.x,pos.y-center.y)
        pcol=vec2(math.cos(angle)*375, math.sin(angle)*375)
        vecn = vec2(-pcol.x, -pcol.y):normalize()
        dotn=vecn:dot(vecn)
        dot=speed:dot(vecn)
        imp = dot/dotn
        speed.x = speed.x - imp * vecn.x * 2
        speed.y = speed.y - imp * vecn.y * 2
   
        -- update the new position
        pos.x = pcol.x + speed.x + center.x
        pos.y = pcol.y + speed.y + center.y
    end
end

I want the star to bounce within the circle. I can't get the math right. Anyone an idea what I'm doing wrong here?

https://gist.github.com/288c44efa63465970a1b

What's changed:

• local variables are much faster in Lua than global - so it pays to declare your inner loop vars as local; this led to a 15% improvement of the initial zoom, and higher when you zoom in (and the iterations of the inner loop go up)

• instead of updating a single row from the image and drawing all of it, switch the backingMode to RETAINED, use a image consisting of a single row and draw only this image at the appropriate position on the screen. This led to a 2x improvement of the initial zoom.

I'm starting this discussion topic, which I may need to revisit for some further help with my logic for other puzzles.

Maybe I'm not understanding how each tool works OR maybe this is a glitch...

My sequence so far seems to repeat a step that it shouldn't. Without an instruction to move I expect the sequence to stop however it goes back one register and repeats. I don't understand why?

Please, I don't want to look at the full solution yet. I only want to first understand what is wrong with my logic sequence before I finish perfect and earn my 3 stars!

At the moment it looks like this:

Prog1. Down redLeft redP2 greenRight Down Left

Prog2. Down Right P1

When I step through the sequence this is what happens:

First 2 red boxes are deposited in the first column. The green box is put in the right column and the hoist backs up to centre - then it should stop but it doesn't.

It goes back one register and picks up the third red box reusing the 5th register in the sequence then continues to the 6th register (move left), then repeats 5th again (drop box) and 6th again move left - smash!

Why is it doing this loop?

*edit: I got my 3 stars - 9 registers :)

In passing, if getting the name of the current function is possible, that would be great as well.

I am having an issue wrapping my head around functions. How to call them? Do they work in a linear fashion, and you do not have to call them? How do you pass parameters, why sometimes the are formatted as such:

function EnemyHorde:init()

and other times:

function setTest(t)

and sometimes just:

function nextTest()

I am having a problem locating a function tutorial or syntax definition. I have searched in the forums, and also the reference. I have looked at LUA specific references and I am still at a loss.

If you can point me to a reference for a beginner that would be great, or at least a few simple examples or exercises.

Thanks again, Munkie

I've seen Asteroys (http://twolivesleft.com/Codea/Talk/discussion/669), but instead of loading it on to my iPad I thought it may be a good idea to get it running on the desktop.

I've taken the loveCodify wrapper, adapted it for LÖVE 0.8.0 and added some functionality until I got Asteroyds running. Like loveCodify, I did enough to get this game running so it isn't a complete wrapper either. I hope that I can revive interest in it, however.

I'm not a githubber (yet?), so find the new Lua file on pastebin (for one month) and the original luaCodify on github (see file header):

http://pastebin.com/GFyVZnL5

Detailed instructions to get Asteroyds running:

Copy "Asteroyds.spritepack" as "Asteroyds" into the source code directory.

Copy "Tyrian Remastered.spritepack" (extract it from the Codea app) as "Tyrian Remastered" into the source code directory.

Copy "loveCodea.lua" and "vector.lua" (from the original github repo) into the source code directory.

Make a "conf.lua" like this:

function love.conf(t)
    t.title = "Asteroyds"
    t.author = "Hyro Vitaly Protago"
    t.screen.width = 1024
    t.screen.height = 768
end

Add this to the top of "Main.lua":

if require ~= nil then
    require("loveCodea")
    require("Interface")
    require("Menu")
    require("Rules")
    require("Plateau")
    require("Pilote")
    require("Vaisseaux")
    require("Chrono")
    require("Des")
    require("Asteroyds")
    require("OrientationAsteroyds")
    require("Move")
    require("AnotherMove")
    require("MoveA")
end

Run it!

-- Stephan

Another tip along the same lines. Several examples are posted on websites as *.codea files. Most of the time they don't come up as full files in my default program of choice. Another thread suggested using the free Notepad++ as a coding environment but it works great for opening such files. A few modifications have to be made to the *.codea files but they are quite obvious.

I know this is old news to most of the old salties here but hopefully as new users come aboard they may find this useful.

Cheers,

Keebo

If not it would certainly make for a useful addition :)

I have run into a problem figuring out how to stop execution of a program when a certain condition is met. I am trying to use a counter that counts down from a set starting number down to zero. When zero is reached, I want the loop to stop, run a function to determine win/lose state and take necessary actions. My code counts down fine and reaches zero, does it's thing and prints the message on the screen. But code continues to count down, in want the code to stop executing at this point and reset wait for user inout to start over. I believe this is because Codea's draw function is constantly being called. I have searched code samples and forums, but can't find anything that shows how to "stop" the draw loop. My code is posted below. Any help on subject is most appreciated.

-- track gametime and set gameover state
function gametime()
    gtime = gtime - 1
    -- print (gtime)
    if gtime == 0 then 
        gameover = true
    end
end

-- reset game when countdown timer reaches zero
function resetgame()
    gtime = 100
    gameover = false
end

-- This function gets called once every frame
function draw()
    -- This sets a dark background color 
    background(40, 40, 50)
    -- Move to the middle of the screen
    pushMatrix()
    translate(WIDTH/2, HEIGHT/2)
    -- not sure what this line does:
    popMatrix()
    -- Draw our gemMesh
    gemMesh:draw()
-- keeps track of game time   
    gametime()
    text("Time Remaining: "..gtime, 175, HEIGHT - 25)
    if gameover then
        text("OUT OF TIME!!", WIDTH/2, HEIGHT/2)
        -- sound(DATA, "ZgBAKQBIQEBAQEBAAAAAAMaB4T7x8M8+QABAf0BAQEBAc0BA")
        resetgame()
    end     
end

Might be releasing this soon... Look, there it is https://docs.google.com/document/d/1n-4vmeiq8OAAzRSHNNklU7p1GXH-fWKbq51LH7kSy0Y/mobilebasic

function fn(x)
    return math.sin(x*2) + math.sin(x)
end

function setup()
    center=vec2(WIDTH/2,HEIGHT/2)
    pos=vec2(0,0)
    size=100
    touches = {}
    lineCapMode(2)
    --noSmooth()
    iparameter("Grid",0,1,1)
    --watch("myW")
end

function draw()
    local fnI, prevI, prevFnI, move, dist

    left=fromScreen(vec2(0,0))
    right=fromScreen(vec2(WIDTH,0))
    top=fromScreen(vec2(0,HEIGHT))
    bottom=fromScreen(vec2(0,0))

    background(0, 0, 0, 255)
    
    drawAxis()
        
    --draw function
    stroke(101, 239, 18, 255)
    strokeWidth(4)
    prevI = nil
    for i = left.x, right.x, (right.x-left.x)/700 do
        fnI = fn(i)
        if (prevI~=nil) then myLine(vec2(i,fnI),vec2(prevI,prevFnI)) end
        prevI = i
        prevFnI = fnI
    end
    
    --zooming and moving
    n = nbTouches()
    if(n==1) then
        move = vec2(CurrentTouch.prevX-CurrentTouch.x,CurrentTouch.prevY-CurrentTouch.y)
        pos = pos - move/size
        zooming=false
    elseif(n==2) then
        if (zooming==true) then
            size=size0*distanceBetweenFingers()/dist0
            move = vec2(CurrentTouch.prevX-CurrentTouch.x,CurrentTouch.prevY-CurrentTouch.y)
            pos = pos - move/size
        else
            zooming=true
            dist0=distanceBetweenFingers()
            size0=size
        end
    else
        zooming=false    
    end
end

function touched(touch)
    if touch.state == ENDED then
        touches[touch.id] = nil
    else
        touches[touch.id] = touch
    end
end

function nbTouches()
    local n
    n=0
    for i,j in pairs(touches) do
        n = n + 1
    end
    return n
end

function distanceBetweenFingers()
    local v, sign
    v=vec2(0,0)
    sign=1
    for i,j in pairs(touches) do
        v=v+vec2(j.x,j.y)*sign
        sign=-1
    end
    return v:len()
end

function toScreen(v)
    return center + (v + pos) * size
end

function fromScreen(v)
    return (v - center) / size - pos
end

function myLine(va,vb)
    local v1,v2
    v1 = toScreen(va)
    v2 = toScreen(vb)
    line(v1.x,v1.y,v2.x,v2.y)
end

function drawAxis()
    local v,i
    stroke(38, 0, 255, 255)
    strokeWidth(4)

    i=fromScreen(vec2(60,0)).x - fromScreen(vec2(0,0)).x
    i=nearestInterval(i)
    
    for x=math.floor(left.x/i)*i,right.x,i do
        v=toScreen(vec2(x,0))
        gridVerLine(v.x)
        line(v.x,v.y+5,v.x,v.y-5)
        text(x,v.x-15,v.y-10)
    end
    for y=math.floor(bottom.y/i)*i,top.y,i do
        v=toScreen(vec2(0,y))
        gridHorLine(v.y)
        line(v.x+5,v.y,v.x-5,v.y)
        text(y,v.x-15,v.y-10)
    end
    stroke(38, 0, 255, 255)
    strokeWidth(4)
    myLine(vec2(-1000000,0),vec2(1000000,0))
    myLine(vec2(0,-1000000),vec2(0,1000000))
end

function gridVerLine(x)
    if (Grid == 0) then return end
    pushStyle()
    stroke(92, 87, 99, 255)
    line(x,0,x,HEIGHT)
    popStyle()
end

function gridHorLine(y)
    if (Grid == 0) then return end
    pushStyle()
    stroke(92, 87, 99, 255)
    line(0,y,WIDTH,y)
    popStyle()
end

function nearestInterval(n)
    local i1, i2, i3
    i=1
    i2=2.5
    i3=5
    
    while true do
        if(n>i and n<i*10)then break
        elseif(n<i) then i=i/10
        else i=i*10
        end
    end
    if (n>i and n<i2*i) then return(i)
    elseif (n>i2*i and n<i3*i) then return(i2*i)
    else return(i3*i)
    end
end

BTW, how can I insert images in my posts?

So i have created a new class called Player and have in the draw() function

sprite("image ... ", CurrentTouch.x, CurrentTouch.y)

but this starts the sprite from bottom left... how can i add it in the center before i can move it?

Would it be possible in any way to add support for a device such as this iOS-serial cable http://www.redpark.com/c2db9.html or this homebrew headphone jack interface http://code.google.com/p/hijack-main/ ? It would be another way to bring another aspect of Processing to the iOS world.

v2 = vec2(-1,0)

v1:angleBetween(v2) <- returns 2.14. Should be +pi or -pi

Hopefully I'm not missing something super simple

first, thanks TLL for Codea, i'm just loving it! and your community here is great too, so i want to get your opinions (it's not something i usually do) i want to create a game and i want to sell it in the appstore (like many of you too) but it would be my first game to publish.

Its a ShootEmUp, nothing extremely special, just fun action, a little story, ipad-created graphics, hopefully ipad created music in the background (and i plan to share that if i get it to work playing mp3's in the background)

the game should have 4 worlds, a world consists of a space section, like this:

and the you proceed on the planet, near above ground... and i wish i had a great idea to do the scrolling on the planet.... what comes to my mind is one of these options: 1 draw the elements one by one, so if i have e.g. a street going from left to right, that could consist of 20 tiles... or green grass, that could fill the screen completely, i think that could be too slow... so i would have to make it less detailed...

2 draw "pre rendered" larger sprites... so i would have maybe just 4-5 sprites for the background, which get created on the fly as the level proceeds with context() to a sprite image out of the litle ones...

3 just use primitives and be very creative making it look good

any suggestions about speed, any other ideas etc?

i would love to hear from you...

i made everything in this video, and i do plan making everything in the game by myself... The slowdowns are just by recording

and

• Sprite Pack: http://www.xixgames.com/demos/tinyworld/spritepack.zip

• Source in a zip: http://www.xixgames.com/demos/tinyworld/source.zip

• Ludum Dare Entry: http://www.ludumdare.com/compo/ludum-dare-23/?action=preview&uid=10960

function setup()
    displayMode(FULLSCREEN)
    mapa = {{9,9,9,9,9,10,9,9,9,9,9},{9,9,9,9,9,10,9,9,9,9,9},{9,9,9,9,9,10,9,9,9,9,9},{9,9,9,9,9,10,9,9,9,9,9},{9,9,9,9,9,10,9,9,9,9,9},{300},{300},{300},{300},{300},{300}}
    O = {vec3(20,180,280),vec3(20,210,230),vec3(20,190,180),vec3(28,400,400)}
end

function draw()
    MapLoader(mapa,O,vec3(0, 138, 255))
end

I have a question regarding getn. I need to know the size of a table, but I think getn is not working as expected, according to the Lua manual:

a={}
a[13] = 25
a[6] = 37
print(table.getn(a)) 

This program prints 0, as if the table were empty. Is it normal?

Will the new HTTP GET API leave the possibility for doing JSON or XML Parsing from some external website? I know the actual parsing will have to written using existing functions, but I am more curious on how HTML data will be stored within a variable or class.

Thanks ahead

Many apps have hidden checks to see if they have been modded, and nuke emselves if they have been. I am aware that if I mess up the program through my own modification it is my own fault, but will the app actively punish me for any changes whatsoever?

I hope to get an answer soon,just adding a few customizations to the editor keys, like move line up and down, would speed my workflow up tremendously....

supportedOrientations(LANDSCAPE_ANY)
displayMode(FULLSCREEN)

tileSize = WIDTH/24
noiseScale = 1/5
noisePos = vec2(0,0)
noiseSpeed = 0.2

function setup()
    parameter("noiseScale", 1/30, 1, 1/5)    
    parameter("noiseSpeed", 0.05, 1, 0.2)

    tiles = {}
    for x = 1, WIDTH/tileSize do
        tiles[x] = {}
        for y = 1, HEIGHT/tileSize do
            tiles[x][y] = noise(x * noiseScale, y * noiseScale)
        end
    end
end

function moveNoise()
    for x,column in ipairs(tiles) do
        for y,value in ipairs(column) do
            tiles[x][y] = noise(x * noiseScale + noisePos.x, y * noiseScale + noisePos.y)
        end
    end
end

function draw()
    background(0, 164, 255, 255)
    
    for x,column in ipairs(tiles) do
        for y,value in ipairs(column) do
            fill((value+1)*0.5*255,100)
            rect((x-1)*tileSize, (y-1)*tileSize, tileSize, tileSize)
        end
    end
    
    noisePos = noisePos + vec2(0.5,0.3) * noiseSpeed
    moveNoise()
end

Does anyone develop for Codea using a windows LUA editor? If so, which one do you use, and further how do you ensure the syntax for Codea is enforced while programming in LUA on Windows?

Thanks much, Munkie

Is that because it's super fast, or something? Cargo-Bot doesn't even have a huge number of sprites, so should we all be using meshes rather than sprites...

Actually, I guess my real question is: what is a mesh?!

To sense coller

And print sumfing lick the

Folwing code:

             !:......::!!*                  
         :................:!!*              
      :.....................::!*o           
    !.........................:!*oe      
   :...........................:!*oo        
  :............................:!!*oe       
 :.............................::!**oe      
!:.............................::!**oee     
!:.............................:!!*ooee     
!:............................:!!**ooee     
*!:.........................::!!**ooeee     
*!::.......................::!!**oooeee
o*!!::..................:::!!!**oooeeee 
 o**!!:::............::::!!!**oooeeeee  
  oo**!!!!::::::::::!!!!!***ooooeeeee    
   eooo****!!!!!!!!!*****ooooeeeeeee     
    eeeooooo*******oooooooeeeeeeeee         
      eeeeeeoooooooooeeeeeeeeeeee       
         eeeeeeeeeeeeeeeeeeeee 
             eeeeeeeeeeeee

(is a sercoll wive a shader)

(not mine :( )

Export it as a online scoreboard

And then decode it

I need hallp coding it [-O<

1. I read the maximum instructions stuff and from a first look to the parser code it seems the app load in memory all the lua scripting stuff and then execute everything, should this lead to memory leaks if the app is going to be big?

2. By modifying the parser, it should be possible to call native code? I mean, if I need (i.e.) facebook integration, should be possible to set hooks and pass stuff to functions outside the lua code?

What I am trying to do:

function Example()

a = math.random(10)
If a = 1 then goto Example()

Or in the days of coding with line numbers

10 Label1

20 a = int(rnd*10)+1
30 If a = 1 then goto 10

I am sure there is an easy solution, but I am having a hard time figuring this one out.

Thanks, Munkie