// This is a coppercube behavior which moves the node it is attached to only on the x axis,
// controlled by the cursor keys and with space for 'jump'.
//
// The following embedded xml is for the editor and describes how the behavior can be edited:
// Supported types are: int, float, string, bool, color, vect3d, scenenode, texture, action
/*
	<behavior jsname="behavior_2DJumpNRun" description="Simple 2D Jump'n'Run Player">
		<property name="Speed" type="float" default="0.02" />
		<property name="JumpSpeed" type="float" default="0.2" />
		<property name="JumpLengthMs" type="int" default="200" />
	</behavior>
*/

behavior_2DJumpNRun = function()
{
this.ForwardKeyDown = false;
this.BackKeyDown = false;
this.PressedJump = false;
this.RunKeyDown = false;
this.LastTime = null;
this.JumpForce = 0;
this.JumpLengthMs = 1000;
};

// called every frame. 
// 'node' is the scene node where this behavior is attached to.
// 'timeMs' the current time in milliseconds of the scene.
// Returns 'true' if something changed, and 'false' if not.
behavior_2DJumpNRun.prototype.onAnimate = function(node, timeMs)
{
// get the time since the last frame

if (this.LastTime == null)
{
this.LastTime = timeMs; // we were never called before, so store the time and cancel
this.InitPos = ccbGetSceneNodeProperty(node, 'Position');
this.InitRotation = ccbGetSceneNodeProperty(node, 'Rotation');
return false;
}

this.LastNodeUsed = node;

var delta = timeMs - this.LastTime;
this.LastTime = timeMs;
if (delta > 200) delta = 200;

// move 

var pos = ccbGetSceneNodeProperty(node, 'Position');
pos.z = this.InitPos.z; // force to by always on the same 2D axis

if (this.ForwardKeyDown)
{
	if (this.RunKeyDown) {
		pos.x += this.Speed * delta * 2;
		ccbSetSceneNodeProperty(node, 'Animation', 'walk');
		ccbSetSceneNodeProperty(node, 'Rotation', this.InitRotation);
	} else {
		pos.x += this.Speed * delta;
		ccbSetSceneNodeProperty(node, 'Animation', 'walk');
		ccbSetSceneNodeProperty(node, 'Rotation', this.InitRotation);
	}
}
else
if (this.BackKeyDown)
{
	if (this.RunKeyDown) {
		pos.x -= this.Speed * delta * 2;
		ccbSetSceneNodeProperty(node, 'Animation', 'walk');
		ccbSetSceneNodeProperty(node, 'Rotation', this.InitRotation.x, this.InitRotation.y - 180, this.InitRotation.z);
	} else {
		pos.x -= this.Speed * delta;
		ccbSetSceneNodeProperty(node, 'Animation', 'walk');
		ccbSetSceneNodeProperty(node, 'Rotation', this.InitRotation.x, this.InitRotation.y - 180, this.InitRotation.z);
	}
}
else
{
// not walking, stand

ccbSetSceneNodeProperty(node, 'Animation', 'stand');
}

// jump if jump was pressed

if (this.PressedJump && this.JumpForce == 0)
{
this.PressedJump = false;
this.JumpForce = this.JumpLengthMs;
}

if (this.JumpForce > 0)
{
pos.y += this.JumpSpeed * delta;
this.JumpForce -= delta;

if (this.JumpForce < 0) 
this.JumpForce = 0;
}


// set position

ccbSetSceneNodeProperty(node, 'Position', pos);

return true;
}

// parameters: key: key id pressed or left up. pressed: true if the key was pressed down, false if left up
behavior_2DJumpNRun.prototype.onKeyEvent = function(key, pressed)
{
// store which key is down
// key codes: left=37, up=38, right=39, down=40, A=65, D=68, W=87, S=83, shift=16 / 
// event.shiftKey (?)

if (key == 65)
this.BackKeyDown = pressed;
else	
if (key == 68)
this.ForwardKeyDown = pressed;

// jump when space or W pressed

if (key == 32 && pressed || key == 87 && pressed)
this.PressedJump = true;

// run when shift pressed
if (key == 160)
this.RunKeyDown = pressed;
}

this.Speed * delta

this.Speed * delta * 2

ccbRegisterKeyDownEvent("keyPressedDown");

function keyPressedDown(keyCode)
{
    print("A key was pressed down:" + keyCode);
}

// run when shift pressed
if (key == 160)
this.RunKeyDown = pressed;
}

// run when shift pressed
if (key == 160 || key == 16)
this.RunKeyDown = pressed;
}