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Asked By
Isccb
I’m trying to do a drag-select with the mouse, but when I draw the rectangle, it’s associated with the mouse position and moves along with it, instead of staying fixed in the initial position.
var dragging = false # Are we currently dragging?
var drag_start = Vector2.ZERO # Location where drag began.
func _unhandled_input(event):
if event.is_action_pressed("mb_left"):
if event.pressed:
dragging = true
drag_start = event.position
if event is InputEventMouseMotion and dragging:
queue_redraw()
if event.is_action_released("mb_left"):
dragging = false
func _draw():
if dragging:
draw_rect(Rect2(drag_start, size), Color.WHITE, true)
If I draw a rectangle at position (0,0), it appears at the tip of the mouse instead of at position (0,0) on the map.
This seems to work as I’d expect (again, adding the size variable):
var dragging = false # Are we currently dragging?
var drag_start = Vector2.ZERO # Location where drag began.
var size
func _unhandled_input(event):
if event.is_action_pressed("mb_left"):
if event.pressed:
dragging = true
drag_start = event.position
if event is InputEventMouseMotion and dragging:
size = event.position - drag_start
queue_redraw()
if event.is_action_released("mb_left"):
dragging = false
func _draw():
if dragging:
draw_rect(Rect2(drag_start, size), Color.WHITE, true)
And, depending on the needs, maybe a slight modification to the _draw() function…
Rectangle outline only so enclosed objects aren’t hidden:
func _draw():
if dragging:
draw_rect(Rect2(drag_start, size), Color.WHITE, false, 3)
Filled rectangle, but with some transparency so enclosed objects aren’t completely hidden:
func _draw():
if dragging:
draw_rect(Rect2(drag_start, size), Color(Color.WHITE, 0.5), false, 3)
