How to implement a touchscreen game controller ??

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How to implement a touchscreen game controller ??

ari484

I want the controller to disappear as soon as the player removes his fingers from the touchscreen . And reappear again when the user touches the screen.

The Controller should act in the given manner ---

*When the Screen is touched the controller should appear --

*When the player drags his fingers to the centre of the controlle should move too..

The following code is meant for the GUI and not for actual player monement..which as usual doesn't work ...CODE -

func _process(delta):
		
	Controls.hide()										#Controller pad hide
	
	if(Input.is_mouse_button_pressed(BUTTON_LEFT)) :
		
		curPos = get_viewport().get_mouse_position() 	#cursor position when clicked
		Controls.show() and Controls.show_on_top 		#Controller pad show
		Controls.position = curPos
		
		new_curPos = get_viewport().get_mouse_position()	#new cursor position when mouse moved
		
		rel_curPos = new_curPos - curPos					#relative cursor position
		
		if (rel_curPos != Vector2(0,0)) :
			Dpad_Center.position = rel_curPos.normalized() + 100

What the code is doing is - it just makes the controller appear and following the mouse ..

What I want it to do is -- When Mouse clicked the controller pad should appear..and when I drag the mouse the Centre of the controller should move while keeping the controller boundary kept fixed..

TwistedTwigleg

You can try the source provided in the linked video on this thread.

Or if you want, you can wait until I have written a tutorial explaining how I've implemented the version I've made. The tutorial should be out sometime early August (if everything goes according to plan)

One thing that could be causing a problem in your code is you are using the same position in both curPos and new_curPos, and then subtracting them in rel_curPos. You need to change curPos at the bottom of the function (or at least after you've used it) so you have both the previous position and the current position. Then you can use the difference to get the relative position.

A suggestion/hint: You do not need to get the relative position from each cursor position. You just need to get the vector from the center of the joystick boundary pointing towards the mouse position :smile:

ari484

How to make curPos record only 1st mouse click position...so that when I move the mouse while pressing the left mouse button it doesn't get changed..

TwistedTwigleg

You can do something like this (untested, but it should work):

var mouse_button_down = false; var mouse_first_pos = Vector2(0,0); func _process(delta): if (Input.is_mouse_button_pressed(BUTTON_LEFT)): if (mouse_button_down == false): mouse_button_down = true; mouse_first_pos = get_viewport().get_mouse_position(); else: if (mouse_button_down == true): mouse_button_down = false; "If you need to do additional processing when the mouse" "is released, you can do it here!"