Rotating an object

#1 Why is the same code not working? Can you post a sample?

#2

if (!isObject(MouseRotableBehavior)){
	%template = new BehaviorTemplate(MouseRotableBehavior);
	%template.friendlyName = "Mouse Rotable";
	%template.behaviorType = "Mouse Input";
	%template.description = "Rotate an actor using the mouse";
}

function MouseRotableBehavior::onBehaviorAdd(%this){
	%this.owner.setUseMouseEvents(true);
    
    $initRotation = %this.owner.getRotation();
	
	$rotPosX = %this.owner.getPositionX();
	$rotPosY = %this.owner.getPositionY();
	
	$initAngle = mAtan($mousePositionY - $rotPosY, $mousePositionX - $rotPosX);
}

function MouseRotableBehavior::onMouseDragged(%this, %modifier, %worldPosition, %clicks){
	$mousePositionX = getWord(%worldPosition, 0);
	$mousePositionY = getWord(%worldPosition, 1);
	
	%myAngle = mAtan($mousePositionY - $rotPosY, $mousePositionX - $rotPosX);
	%this.owner.setRotation(($initRotation + (%myAngle - $initAngle)) * 45);
}

Obviously the iOS version of the code is a bit different but the logic is exactly the same.

#3 OK on the iPhone you have to use:

function oniPhoneTouchMove( %touchCount, %touchX, %touchY ) 
{
}

Which is in screen space and not attached to a specific object.

If you want to use functions like you would on the PC you can take a look at my multi-touch patch:

http://www.garagegames.com/community/forums/viewthread/125394

You should be able to use your existing code with this but you'll just have to change onMouseDragged to say onMouseMove. Having said this I'm yet to test the code on behaviours but I don't see why it wouldn't work.

#4 I already change onMouseDragged with oniPhoneTouchMove but it doesn't worked. I'll post the iOS code when I'll be at home.

#5 You may have to make sure you ticked the Enable MultiTouch option.

#6 Enable MultiTouch option is ticked now and my script is working but only on the simulator...
PS: I replace onMouseDragged with onMouseMove

#7 Now I replaced onMouseMove with oniPhoneTouchMove this is the new code but there're problems.
Here the code:

function rotable::onLevelLoaded(%this, %scenegraph){
    
    $initRotation = %this.getRotation();
	
	$rotPosX = %this.getPositionX();
	$rotPosY = %this.getPositionY();
	
	$initAngle = mAtan($mousePositionY - $rotPosY, $mousePositionX - $rotPosX);
}

function oniPhoneTouchMove(%touchCount, %touchX, %touchY){
	$mousePositionX = getWord(%touchX, 0);
	$mousePositionY = getWord(%touchY, 0);
	
	%myAngle = mAtan($mousePositionY - $rotPosY, $mousePositionX - $rotPosX);
	rotable.setRotation(($initRotation + (%myAngle - $initAngle)) * 45);
	
	echo("Mouse Position X: " @ $mousePositionX);
	echo("Mouse Position Y: " @ $mousePositionY);
}

#8 And finally it's working.

function rotable::onMouseDown(%this, %modifier, %worldPosition, %clicks){
	rotable.rotating = true;
    $initRotation = %this.getRotation();
	
	$rotPosX = %this.getPositionX();
	$rotPosY = %this.getPositionY();
	
	$initAngle = mAtan($mousePositionY - $rotPosY, $mousePositionX - $rotPosX);
	
	echo("Init Angle: " @ $initAngle);
}

function rotable::onMouseUp(%this, %modifier, %worldPosition, %clicks){
	rotable.rotating = false;
}

function oniPhoneTouchMove(%touchCount, %touchX, %touchY){
	if(rotable.rotating){
		$mousePositionX = getWord(%touchX, 0);
		$mousePositionY = getWord(%touchY, 0);
		
		%myAngle = mAtan($mousePositionY - $rotPosY, $mousePositionX - $rotPosX);
		rotable.setRotation(($initRotation - (%myAngle + $initAngle)));
		
		echo("Mouse Position X: " @ $mousePositionX);
		echo("Mouse Position Y: " @ $mousePositionY);
		echo("Rotable Angle: " @ rotable.getRotation());
	}
}

Only one direction. I'm trying to code a behavior version now...

EDIT: I don't think that a behavior version will be possible because onMouseMove callback doesn't work on iTGB

#9 I'm glad that's sorted.

You can most likely create a behaviour version using the multi-touch patch I linked above.

Cheers

#10 I have to recompile the engine?

#11 Yes, though this is a required step to build the iPhone version anyway and all the preconfigured projects are present in the buildFiles folder of your individual project.