Codea Competition (Need input on v2)

Zoyt · January 2012

Hello amazing programers,
We are all anxious for the Codea competition. In the mean time while TLL sets that up, I have my own little competition on my new website. Of coarse, it is a little junky, but it will do for now. You will find it here. Hurry up!
They all were amazing, but I really liked @Mark's...

Ipad41001 · January 2012

You may want to make honorary awards for existing apps. There are many existing utilities and games

Zoyt · January 2012

Like...
Did you read the entire thing?
You could get an app under $5 for free. I will hand out certificates. You should sign up. You are an amazing coder in my opinion.

Ipad41001 · January 2012

Thx, I just mean you may want to honorary award existing things so that people only submit new.

Zoyt · January 2012

Alright. Thanks. I will. That's a good point. You should upload something... Even if it's already been coded.

Mark · January 2012

You might want to consider giving a "theme" to your competition. For example, the recent Ludum Dare 22 was "Alone." Another competition in Australia pulled three words out of a hat to come up with "Key," "Badger," and "Suit" -- all of which had to feature in submitted games.

Using a theme helps ensure you're getting something original, and it's interesting to see how people but a differnt spin on the words. For example, in the AU competition, some people used suit as in "suit of clothes" while others used it as in "suit of cards." One team even choose to interpret key as islands, like in "Florida Keys."

ruilov · January 2012

Mark, that article about the badger game competition was pretty interesting. Thanks for posting.

Zoyt · January 2012

Alright. Thanks to you guys for the suggestions. I have updated and changed a few things. Please, please submit your apps. I think this could be really cool if a lot of people posted their code.
Thanks!

Ldsguy1 · January 2012

I've been thinking of something to try and code for a while and am not sure what to do...(please don't say be creative, my parents say that too much)

Ipad41001 · January 2012

Jan 12 which time zone

Ipad41001 · January 2012

It can only use the space sprite pack .... is Spritely allowed if it is pasted in as code? ... Is use of drawing only (line, ellispe, rect like my bee)

ruilov · January 2012

Ldsguy1, one idea (a bit stolen from the article Matt posted in another thread) is to have your avatar floating around with a protective shield that only covers one side, and the player has to direct the shield to the left, right, up, down so that when the avatar bounces on the walls, it doesn't die because the walls are made of a deadly laser or something.

Something like that, I haven't thought much about it. Feel free to take and run with it. Gravity, moving the shield through the orientation of the ipad, enemies, could all work.

Zoyt · January 2012

Sorry about that everyone. Yes, you may use the wonderful tool Spritely. The graphics must still be space related. I'll change it.

Zoyt · January 2012

And sorry about the messy comment leaver. I'll see if I can fix that.

Ipad41001 · January 2012

HOW ARE YOU GENTLEMEN!!

I have decided to launch F1rst!

The LOIC zaps you before you get off the ground.

http://twolivesleft.com/Codea/Talk/discussion/466/loic-low-orbit-ion-cannon-game

ALL YOUR BASE ARE BELONG TO US.

YOU HAVE NO CHANCE TO SURVIVE MAKE YOUR TIME.

HA HA HA HA

http://www.google.com/url?sa=t&amp;rct=j&amp;q=all your base are belong to us&amp;source=web&amp;cd=4&amp;ved=0CEkQtwIwAw&amp;url=http://www.youtube.com/watch?v=8fvTxv46ano&amp;ei=L5kJT8zYJqfZ0QG9xcSVDw&amp;usg=AFQjCNH6KOUSt2TiegrWmvzNfLyJKD_RWA&amp;sig2=uuz84mzEiANeDTvdKhucyQ

(good luck to everyone )

Zoyt · January 2012

Alright...

Mark · January 2012

For those who can still import projects, here's my submission as a Codea file.

http://devilstower.posterous.com/orb-bits

I decided to go very simple -- touch anywhere on the screen to thrust and... That's it. Land on all the planets without falling into the sun or colliding with an asteroid. See how many systems you can explore.

Mark · January 2012

Here's the copy/paste version. Only three files, less than 400 lines. So it's not so bad to load this way. No sprites at all, not even from Spritely.

https://gist.github.com/1579471

Ipad41001 · January 2012

@Mark, like a real arcade game, very nice

Maxiking16 · January 2012

Very cool i Love the Mega gravity if you come to close to the sun

Zoyt · January 2012

Cool. Like it. 2 competitors in the game section.

MICHAEL · January 2012

Uh @Zoyt is it ok to post my game code here

MICHAEL · January 2012

ENEMY_SPAWN_EASY = 0
ENEMY_SPAWN_HARD = 1

EnemyHorde = class()

function EnemyHorde:init()
    -- you can accept and set parameters here
    self.frame = 0
    self.units = {} -- enemy units
    self.heroBullets = {} -- hero's bullets
    self.explosions = {}
    self.enemySize = 50
    self.killCount = 0
    self.spawnPattern = ENEMY_SPAWN_EASY 
end

function EnemyHorde:draw()
    self.frame = (self.frame+1)%128

    pushStyle()

    if self.spawnPattern == ENEMY_SPAWN_EASY then
        fill(123, 25, 100, 255)
    else
        fill(16, 221, 4, 255)
    end

    stroke(62, 33, 37, 255)
    strokeWidth(4)

    -- Spawn random enemy every 100 frames
    if self.frame%50 == 0 then
        spawn = vec2( math.random(WIDTH), HEIGHT + self.enemySize )
        table.insert( self.units, spawn )
    end

    for i,v in ipairs(self.units) do
        -- Move unit down
        v.y = v.y - 5    

        -- If hard, move in sine wave
        if self.spawnPattern == ENEMY_SPAWN_HARD then
            -- Compute movement vector
            sideMove = vec2( math.sin(v.y * 0.02) * 60, 0 )
            v = v + sideMove
        end

        -- Cull unit
        culled = false
        if (v.y + self.enemySize) < 0 then
            table.remove(self.units, i)
            culled = true -- no continue statement
        end 

        -- Check if hit by a bullet
        if culled == false then
            for j,b in ipairs(self.heroBullets) do
                if v:dist(b) < self.enemySize/2 then
                    table.remove(self.units, i)
                    table.remove(self.heroBullets, j)
                    
                    -- Explode!
                    table.insert(self.explosions, Explosion(v))

                    -- Update killCount
                    self.killCount = self.killCount + 1
                end
            end
        end

        -- Draw unit
        sprite("Tyrian Remastered:Blimp Boss", v.x, v.y, self.enemySize, self.enemySize)
        
    end

    -- Draw explosions
    for i,e in ipairs(self.explosions) do
        e:draw()

        if e:isDone() then
            table.remove(self.explosions,i)
        end
    end

    popStyle()
end

MICHAEL · January 2012

Explosion = class()

function Explosion:init(pos)
    self.position = pos
    self.opacity = 255
    self.time = 0
    self.lines = {}

    sound("explode",1285)

    for i = 1,10 do
        dir = vec2(0,1)
        dir = dir:rotate( math.rad(math.random(360)) )
        table.insert( self.lines, dir*math.random(2,7) )
    end
end

function Explosion:isDone()
    return self.opacity <= 0
end

function Explosion:draw()
    self.time = self.time + 1.939
    
    pushStyle()
    lineCapMode(ROUND)
    strokeWidth(6)
    smooth()
    stroke(255, 146, 0, 255)

    p = self.position
    for i,v in ipairs(self.lines) do
        vt = p + v * self.time
        line(p.x, p.y, vt.x, vt.y) 
    end

    self.opacity = 255 * (1 - (self.time/30));

    popStyle()
end

MICHAEL · January 2012

Invader = class()

function Invader:init()
    self.position = vec2(0,0)
    self.bullets = {}
    self.frame = 0
end

function Invader:spawnBullet()
    sound("shoot",77)
    table.insert( self.bullets, vec2( self.position.x, self.position.y + 30 ) )
end

function Invader:drawBullets()
    -- Spawn bullets
    if self.frame%30 == 0 then
        self:spawnBullet()
    end

    -- Move, draw, cull bullets
    for i,v in ipairs(self.bullets) do
        v.y = v.y + 3

        rect(v.x, v.y, 2.5, 45)

        if v.y > (HEIGHT + 10) then
            table.remove(self.bullets,i)
        end 
    end
end

function Invader:draw()
    self.frame = (self.frame + 1)%128

    pushMatrix()
    pushStyle()
    
    -- Set up basic graphical style
    lineCapMode(ROUND)
    strokeWidth(8)
    stroke(222, 12, 12, 255)
    smooth()
    noFill()

    -- Transform to pos
    translate(self.position.x, self.position.y)

    -- Draw our triangle invader
    -- 60 pixels high, 40 pixels wide
   fill(47, 34, 34, 255)
     line( 0, 30, 20, -30 )
    line( 0, 30,-20, -30 )
    line( -20, -30, 20, -30 )
    sprite("Tyrian Remastered:Boss D")

    popMatrix()

    self:drawBullets()

    popStyle()
end

function Invader:touched(touch)
    -- Codea currently does not automatically call this method
end

MICHAEL · January 2012

hero = nil
enemies = nil
bgLines = nil
explosion = nil

GAME_PLAYING = 0
GAME_DEAD = 1
state = GAME_PLAYING

-- Use this function to perform your initial setup
function setup()
    state = GAME_PLAYING

    iparameter("BackgroundSpawnRate",0,3,2)

    hero = Invader()
    hero.position = vec2(WIDTH/2, 150)

    enemies = EnemyHorde()
    enemies.heroBullets = hero.bullets

    bgLines = StreamingLines()
end

function touchingAtPos()
    if CurrentTouch.state == BEGAN or 
       CurrentTouch.state == MOVING then
        return vec2( CurrentTouch.x, CurrentTouch.y )
    end 

    return nil
end

-- This function gets called once every frame
function draw()
    background(12, 0, 255, 255)

    bgLines.spawnRate = BackgroundSpawnRate

    bgLines:update()
    bgLines:draw()

    if state == GAME_PLAYING then 
        -- Process touch
        touch = touchingAtPos()
        if touch then
            if touch.x < (hero.position.x - 10) then
                hero.position.x = hero.position.x - 3
            elseif touch.x > (hero.position.x + 10) then
                hero.position.x = hero.position.x + 3
            end
        end

        if enemies.killCount == 5 then
            enemies.spawnPattern = ENEMY_SPAWN_HARD
        end

        enemies:draw()

        hero:draw()

        -- Check if hero is hit
        for i,v in ipairs(enemies.units) do
            if v:dist(hero.position) < 60 then
                state = GAME_DEAD
                explosion = Explosion(hero.position)
            end
        end
    elseif state == GAME_DEAD then
        if explosion then
            explosion:draw()
            if explosion:isDone() then
                explosion = nil
            end
        end
    end
end

MICHAEL · January 2012

-- This class draws the lines streaming past in the background
-- of the game. We spawn and delete them in the self.lines table

----------------------------------------------
-- Single line
----------------------------------------------
StreamLine = class()
function StreamLine:init(pos, vel)
    self.position = pos
    self.velocity = vel
end

function StreamLine:update()
    self.position.y = self.position.y - self.velocity
end

function StreamLine:draw()
    p = self.position
    line(p.x,p.y,p.x,p.y + self.velocity)
end

function StreamLine:shouldCull()
    -- Check if off the bottom of the screen
    if (self.position.y + self.velocity) < 0 then
        return true
    end 

    return false
end

----------------------------------------------
-- All lines
----------------------------------------------
StreamingLines = class()

function StreamingLines:init()
    self.minSpeed = 5
    self.speed = 30
    self.spawnRate = 2
    self.lines = {}
end

function StreamingLines:updateAndCull()
    toCull = {}
    for i,v in ipairs(self.lines) do
        if v:shouldCull() then
            -- table.insert( toCull, i )
            table.remove( self.lines, i )
        else
            v:update()
        end
    end

    -- print("Removing ", #toCull)
    --for i = #toCull,1,-1 do
    --    table.remove( self.lines, i )
    --end
end

function StreamingLines:update()
    -- Create spawnRate lines per update
    for i = 1,self.spawnRate do
        -- Generate random spawn location
        vel = math.random(self.minSpeed, self.speed)
        spawn = vec2( math.random(WIDTH), HEIGHT + vel )

        table.insert(self.lines, StreamLine(spawn, vel))
    end

    -- Update and cull offscreen lines
    self:updateAndCull()
end

function StreamingLines:draw()
    --print("Num lines = ", #self.lines)

    pushStyle()

    noSmooth()
    stroke(252, 205, 6, 173)
    strokeWidth(2)
    lineCapMode(SQUARE)
 
    for i,v in ipairs(self.lines) do
        v:draw()
    end

    popStyle()
end

John · January 2012

@MICHAEL please remember to put three ~ characters on the lines above and below your code blocks. Otherwise the code will be unreadable and messy in your posts. I've fixed it for you this time.

Also, I wouldn't recommend sharing your code directly in a competition thread when you have multiple tabs, as it makes it difficult to follow the content of the thread.

MICHAEL · January 2012

Thank you @John sorry for forgetting about the ~~~ do you have any recommendations as to how I should go about posting my code for this competition I was unsure of the best way

John · January 2012

A lot of people use posterous.com which lets you post stuff via email, by setting up an account and emailing to send@posterous.com (i think). You can then provide the links on the forum.

Bortels · January 2012

post@posterous.com.

I strongly recommend gist.github.com. Has versioning, easy copy and paste. Posterous worked better for binary files like .codea and screenshots.

Zoyt · January 2012

Next time I do this, I'll try to do a better way on my website. Thanks for the participation!

Simeon · January 2012

Just tried your game, @Mark. Really fun. Couldn't get past the second level though

Mark · January 2012

Thanks. If it's any consolation, I still die on that stage about 1/2 the time, and it probably took me me a dozen tries to get past the third screen. I only bothered to actually put in four "hand crafted" puzzles, after which the levels are generated randomly, and usually end up being easier than the first four.

Simeon · January 2012

The level transition sequence is pretty fantastic. I really like the way everything blasts out and the new level comes in.

MICHAEL · January 2012

@mark I am sitting in class and just tried your game it is awesome I was having trouble with stage 2 so I gave myself a little fuel boost :-D

MICHAEL · January 2012

@Bortels and @John thank you I will post code there and just put a link to it from a comment

Mark · January 2012

@Simeon, you can think of this whole game as my leaning the joys of translate() and playing with scale. I tried actively varying the scale so that the ship is actually always the same physical distance from the "sun," but I found it kind of disorientating.

Oh, and I cheated by using a global variable for scale, but then these classes are't exactly the kind of thing you'd extract for another program in any case.

Andrew_Stacey · January 2012

It's stretching the term "space" to its limits, but I'd like to submit my program for exploring "Complex Euclidean Space": http://www.math.ntnu.no/~stacey/HowDidIDoThat/iPad/Codea.html (scroll down to the projects, the one named "Complex Plane").

Zoyt · January 2012

@MICHAEL - If you could give a link to the code, that would be great. (Mabey put it on a hidden page on WordPress) Thanks!

Zoyt · January 2012

And just to let you know, a whole new website coming soon. Better comments and possible an uploadedibg service for your code.

Ldsguy1 · January 2012

Here is my submission. It is a space themed checkers. It is missing a few things and if you drag one checker over another they stick, but enjoy!

https://gist.github.com/2fa8a8533bdf79b44166

Zoyt · January 2012

Cool! Can't wait to try it!

Zoyt · January 2012

I have no utilities! I really would like some! It's not that hard, is it? Spritely could easily be entered. Come on! You may enter one into games and one into utilities. @Andrew_Stacey - Possibly your 3D cube with a customizable amount of vertices? I'd allow it.

Andrew_Stacey · January 2012

Could you clarify what you mean by "utility"? Spritely is definitely a utility in that it helps with writing other projects. Much of my code is designed to be reused, but the code itself is not what I would call a utility.

Did my complex space explorer, lonked above, qualify? Is that a "utility"?

Zoyt · January 2012

That is a good point. Thank you. I'll change it to "Other".

Drablos · January 2012

My contribution to the competition:
http://twolivesleft.com/Codea/Talk/discussion/480/swoosh-a-simple-asteroid-dodging-game

Still a lot of things I would like to fix(like gems spawning inside rocks), but I can always update the pastebin I guess. :P

Edit: I'm suddenly realizing you might have meant the SpaceCute sprite pack, and not the Tyrian one. Does it matter?

Zoyt · January 2012

@Drablos - Sorry. Yes, you may use any sprites as long as it has to do with space. Sorry for the mis communication.

Zoyt · January 2012

Zoyt · January 2012

I am just confirming that these are the correct pieces of code and the right people. Please respond.

@Ipda41001 - http://twolivesleft.com/Codea/Talk/discussion/466/loic-low-orbit-ion-cannon-game
@Mark - http://devilstower.posterous.com/orb-bits
@Andrew_Sacey - http://www.math.ntnu.no/~stacey/HowDidIDoThat/iPad/Codea.html (scroll to "Complex Plane")
@Ldsguy1 - https://gist.github.com/2fa8a8533bdf79b44166
@Drablos - http://twolivesleft.com/Codea/Talk/discussion/480/swoosh-a-simple-asteroid-dodging-game
@MICHAEL - See code above

I need more than zero people in the drawing section. PLEASE LET OTHERS KNOW AND FEEL FREE TO SUBMIT ANOTHER PEICE OF CODE TO THAT SECTION!

Ipad41001 · January 2012

Yes, that's the one

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Codea Competition (Need input on v2)

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