From 3f8799f25a6caf2e4de3909137e3fdd0466accf9 Mon Sep 17 00:00:00 2001
From: Emmanouil Papadeas <35376950+OverloadedOrama@users.noreply.github.com>
Date: Tue, 21 May 2024 02:59:37 +0300
Subject: [PATCH] When hovering above the first position when using the curve
 tool, apply the curve shape

---
 src/Tools/DesignTools/CurveTool.gd | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/Tools/DesignTools/CurveTool.gd b/src/Tools/DesignTools/CurveTool.gd
index 84876411e..02aeb50c2 100644
--- a/src/Tools/DesignTools/CurveTool.gd
+++ b/src/Tools/DesignTools/CurveTool.gd
@@ -5,6 +5,7 @@ var _drawing := false  ## Set to true when a curve is being drawn.
 var _fill := false  ## When true, the inside area of the curve gets filled.
 var _editing_bezier := false  ## Needed to determine when to show the control points preview line.
 var _thickness := 1  ## The thickness of the curve.
+var _last_mouse_position := Vector2.INF  ## The last position of the mouse
 
 
 func _init() -> void:
@@ -56,7 +57,11 @@ func update_config() -> void:
 
 func _input(event: InputEvent) -> void:
 	if _drawing:
-		if event is InputEventMouseButton:
+		if event is InputEventMouseMotion:
+			_last_mouse_position = Global.canvas.current_pixel.floor()
+			if Global.mirror_view:
+				_last_mouse_position.x = Global.current_project.size.x - 1 - _last_mouse_position.x
+		elif event is InputEventMouseButton:
 			if event.double_click and event.button_index == tool_slot.button:
 				$DoubleClickTimer.start()
 				_draw_shape()
@@ -98,6 +103,8 @@ func draw_move(pos: Vector2i) -> void:
 
 func draw_end(pos: Vector2i) -> void:
 	_editing_bezier = false
+	if _is_hovering_first_position(pos):
+		_draw_shape()
 	super.draw_end(pos)
 
 
@@ -120,6 +127,10 @@ func draw_preview() -> void:
 
 	canvas.draw_set_transform(canvas.position, canvas.rotation, canvas.scale)
 
+	var circle_radius := Vector2.ONE * (5.0 / Global.camera.zoom.x)
+	if _is_hovering_first_position(_last_mouse_position):
+		var circle_center := _curve.get_point_position(0) + Vector2.ONE * 0.5
+		draw_empty_circle(canvas, circle_center, circle_radius * 2.0, Color.BLACK)
 	if _editing_bezier:
 		var start := _curve.get_point_position(0)
 		if _curve.point_count > 1:
@@ -136,7 +147,6 @@ func draw_preview() -> void:
 			end.x = Global.current_project.size.x - end.x - 1
 
 		canvas.draw_line(start, end, Color.BLACK)
-		var circle_radius := Vector2.ONE * (5.0 / Global.camera.zoom.x)
 		draw_empty_circle(canvas, start, circle_radius, Color.BLACK)
 		draw_empty_circle(canvas, end, circle_radius, Color.BLACK)
 
@@ -230,6 +240,10 @@ func _fill_bitmap_with_points(points: Array[Vector2i], bitmap_size: Vector2i) ->
 	return bitmap
 
 
+func _is_hovering_first_position(pos: Vector2) -> bool:
+	return _curve.point_count > 0 and _curve.get_point_position(0) == pos
+
+
 # Thanks to
 # https://www.reddit.com/r/godot/comments/3ktq39/drawing_empty_circles_and_curves/cv0f4eo/
 func draw_empty_circle(