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extends SummerDayTool
class_name SummerDayRotationCanvasTool
var rotation_activated : = false
var initial_transform : Transform2D
var initial_angle : float
func _init ( ) :
priority = 1
modifier_layer = 2
func _check_for_use ( event : InputEvent , tool_context : SummerDayToolContext ) :
if event is InputEventMouseButton :
if event . button_index == BUTTON_LEFT :
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if event . is_pressed ( ) and event . control and event . alt :
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initial_transform = tool_context . canvas_state . canvas_transform
var canvas_center = tool_context . canvas_state . rect_size * 0.5
initial_angle = event . position . angle_to_point ( canvas_center )
rotation_activated = true
else :
rotation_activated = false
if event is InputEventMouseMotion :
return rotation_activated
return false
func _run ( event : InputEvent , tool_context : SummerDayToolContext ) :
var canvas_center = tool_context . canvas_state . rect_size * 0.5
var canvas_transform = initial_transform
canvas_transform . origin -= canvas_center
var current_angle = event . position . angle_to_point ( canvas_center )
var rotation_angle = current_angle - initial_angle
canvas_transform = canvas_transform . rotated ( rotation_angle )
canvas_transform . origin += canvas_center
tool_context . canvas_state . canvas_transform = canvas_transform