1 files changed, 78 insertions, 0 deletions
diff --git a/demos/misc/window_management/observer/observer.gd b/demos/misc/window_management/observer/observer.gd
new file mode 100644
index 0000000000..f100811859
--- /dev/null
+++ b/demos/misc/window_management/observer/observer.gd
@@ -0,0 +1,78 @@
+
+extends Spatial
+
+# Member variables
+var r_pos = Vector2()
+var state
+
+const STATE_MENU = 0
+const STATE_GRAB = 1
+
+
+func direction(vector):
+	var v = get_node("Camera").get_global_transform().basis*vector
+	v = v.normalized()
+	return v
+
+
+func impulse(event, action):
+	if(event.is_action(action) && event.is_pressed() && !event.is_echo()):
+		return true
+	else:
+		return false
+
+
+func _fixed_process(delta):
+	if(state != STATE_GRAB):
+		return
+	
+	if(Input.get_mouse_mode() != Input.MOUSE_MODE_CAPTURED):
+		Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
+	
+	var dir = Vector3()
+	var cam = get_global_transform()
+	var org = get_translation()
+	
+	if (Input.is_action_pressed("move_forward")):
+		dir += direction(Vector3(0, 0, -1))
+	if (Input.is_action_pressed("move_backwards")):
+		dir += direction(Vector3(0, 0, 1))
+	if (Input.is_action_pressed("move_left")):
+		dir += direction(Vector3(-1, 0, 0))
+	if (Input.is_action_pressed("move_right")):
+		dir += direction(Vector3(1, 0, 0))
+	
+	dir = dir.normalized()
+	
+	move(dir*10*delta)
+	var d = delta*0.1
+	
+	var yaw = get_transform().rotated(Vector3(0, 1, 0), d*r_pos.x)
+	set_transform(yaw)
+	
+	var cam = get_node("Camera")
+	var pitch = cam.get_transform().rotated(Vector3(1, 0, 0), d*r_pos.y)
+	cam.set_transform(pitch)
+	
+	r_pos.x = 0.0
+	r_pos.y = 0.0
+
+
+func _input(event):
+	if(event.type == InputEvent.MOUSE_MOTION):
+		r_pos = event.relative_pos
+	
+	if(impulse(event, "ui_cancel")):
+		if(state == STATE_GRAB):
+			Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)
+			state = STATE_MENU
+		else:
+			Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
+			state = STATE_GRAB
+
+
+func _ready():
+	set_fixed_process(true)
+	set_process_input(true)
+	
+	state = STATE_MENU