Code:

//Configure app for landscape game mode.

cfg.Game, cfg.Landscape

​

//Handle game loading.

function OnLoad()

{

    //Enable physics and enclose scene with walls.

    gfx.AddPhysics( )

    

    //Create sprites.

    sky = gfx.CreateSprite( "/Sys/Img/Sky.jpg" )

    duck = gfx.CreateSprite( "Img/angry_duck_960x687x3x3", "birds" )

    gun = gfx.CreateSprite( "Img/cannon.png" )

​

    //Create graphical objects.

    floor = gfx.CreateRectangle( 1.5, 0.1, 0x338833, null,null,null, "ground" )

    pillar1 = gfx.CreateRectangle( 0.04, 0.4, 0xC77300, 4,0x000000,null, "object" )

    pillar2 = gfx.CreateRectangle( 0.04, 0.4, 0xC77300, 4,0x000000,null, "object" )

    plinth = gfx.CreateRectangle( 0.24, 0.06, 0xC77300, 4,0x000000,null, "object" )

    

    //Create sounds.

    birds = gfx.CreateSound( "Snd/birds.mp3" )

    bang = gfx.CreateSound( "Snd/flump.mp3" )

    crash = gfx.CreateSound( "Snd/crash.mp3" )

    quack = gfx.CreateSound( "/Sys/Snd/Squeak.mp3" )

   

    //Detect collisions.

    gfx.SetOnCollide( OnCollide )

}

 

//Called when game has loaded.

function OnReady()

{

    //Add sky image.

    gfx.AddSprite( sky, 0,0, 1,1 )

    

    //Add floor.

    gfx.AddGraphic( floor, 0, 0.9 )

    floor.SetPhysics( 2, "fixed", 0.9, 0.7, 0.1 );

    

    //Add cannon image.

    gfx.AddSprite( gun, 0.05,0.66, 0.16 )

​

    //Add duck image (with physics)

    //group, type, density, bounce, friction, linearDamp, angularDamp

    gfx.AddSprite( duck, gun.x+0.05, floor.y-duck.height-0.01, 0.07, null, -0.1 )

    duck.SetPhysics( 1, "dynamic", 0.4, 0.1, 0.3 )

    gfx.SwapOrder( duck, gun )

​

    //duck.SetShape( "round" )

    duck.visible = false

​

    //Add target objects.

    gfx.AddGraphic( pillar1, 0.6, 1-pillar1.height-floor.height-0.05 )

    pillar1.SetPhysics( 2, "dynamic", 0.6, 0.3, 0.5 );

   gfx.AddGraphic( pillar2, 0.8, 1-pillar2.height-floor.height-0.05 )

    pillar2.SetPhysics( 2, "dynamic", 0.6, 0.3, 0.5 );

    gfx.AddGraphic( plinth, 0.6, 0.4 )

    plinth.SetPhysics( 2, "dynamic", 0.6, 0.3, 0.1 );

​

    //Start animating

    gfx.Animate( OnAnimate )

    setTimeout( OnAnimate, 20000 )

​

    //Start background sound.

    birds.Play( /*true*/ )

​

    //Shoot bird after 2 seconds

    setTimeout( fire, 2000 )

}

 

//Update game objects.

//(called for every frame)

function OnAnimate( t, dt ) 

{

    //Show duck when near gun muzzle

    if( duck.x > gun.x+gun.width*0.7 ) duck.visible = true

}

 

//Fire duck from cannon

function fire()

{

    duck.SetVelocity( 0.7, 1.2 )

    duck.PlayRange( 0, 7, 0.3, true )

    duck.data.fired = true

    bang.Play()

}

 

//Handle sprite collisions.

function OnCollide( a, b )

{

    //Handle bird and object collision

    if( a.group=="birds" && b.group=="object" ) 

    {

        duck.Goto( 8 )

        if( duck.data.fired && !duck.data.dead ) 

        { 

            quack.Play()

            duck.data.dead = true

        }

        crash.Play()

    }

}