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Added proper circle brush - Bresenham's Circle Algorithm

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The circle's radius is the brush's size. Respects image/selection boundaries, works with mirror. A special plot_circle() method is found on Global, to calculate the rectangles used by the mouse cursor/position indicator.
This commit is contained in:
OverloadedOrama 2019-12-25 20:27:25 +02:00
parent 7942463b7d
commit 06e0d74c14
7 changed files with 210 additions and 67 deletions
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24
Scripts/BrushButton.gd
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@ -1,27 +1,30 @@
extends BaseButton
var brush_type = Global.BRUSH_TYPES.PIXEL
var custom_brush_index := -1
export var brush_type = Global.BRUSH_TYPES.PIXEL
export var custom_brush_index := -2
func _on_BrushButton_pressed() -> void:
#Change left brush
# Change left brush
if Global.brush_type_window_position == "left":
Global.current_left_brush_type = brush_type
Global.custom_left_brush_index = custom_brush_index
if custom_brush_index > -1: #Custom brush
if custom_brush_index > -1: # Custom brush
if Global.current_left_tool == "Pencil":
Global.left_color_interpolation_container.visible = true
if hint_tooltip == "":
Global.left_brush_type_label.text = tr("Custom brush")
else:
Global.left_brush_type_label.text = tr("Brush:") + " %s" % hint_tooltip
else: #Pixel brush
elif custom_brush_index == -2: # Pixel brush
Global.left_color_interpolation_container.visible = false
Global.left_brush_type_label.text = tr("Brush: Pixel")
elif custom_brush_index == -1: # Circle brush
Global.left_color_interpolation_container.visible = false
Global.left_brush_type_label.text = tr("Brush: Circle")
Global.update_left_custom_brush()
else: #Change right brush
else: # Change right brush
Global.current_right_brush_type = brush_type
Global.custom_right_brush_index = custom_brush_index
if custom_brush_index > -1:
@ -31,21 +34,24 @@ func _on_BrushButton_pressed() -> void:
Global.right_brush_type_label.text = tr("Custom brush")
else:
Global.right_brush_type_label.text = tr("Brush:") + " %s" % hint_tooltip
else: #Pixel brush
elif custom_brush_index == -2: # Pixel brush
Global.right_color_interpolation_container.visible = false
Global.right_brush_type_label.text = tr("Brush: Pixel")
elif custom_brush_index == -1: # Circle brush
Global.right_color_interpolation_container.visible = false
Global.right_brush_type_label.text = tr("Brush: Circle")
Global.update_right_custom_brush()
func _on_DeleteButton_pressed() -> void:
if brush_type == Global.BRUSH_TYPES.CUSTOM:
if Global.custom_left_brush_index == custom_brush_index:
Global.custom_left_brush_index = -1
Global.custom_left_brush_index = -2
Global.current_left_brush_type = Global.BRUSH_TYPES.PIXEL
Global.left_brush_type_label.text = "Brush: Pixel"
Global.update_left_custom_brush()
if Global.custom_right_brush_index == custom_brush_index:
Global.custom_right_brush_index = -1
Global.custom_right_brush_index = -2
Global.current_right_brush_type = Global.BRUSH_TYPES.PIXEL
Global.right_brush_type_label.text = "Brush: Pixel"
Global.update_right_custom_brush()