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Pixelorama/src/Classes/Drawers.gd

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GDScript3
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class_name Drawer
class SimpleDrawer:
func set_pixel(_sprite: Image, _pos: Vector2, _new_color: Color) -> void:
_sprite.set_pixel(_pos.x, _pos.y, _new_color)
class PixelPerfectDrawer:
const neighbours = [Vector2(0, 1), Vector2(1, 0), Vector2(-1, 0), Vector2(0, -1)]
const corners = [Vector2(1, 1), Vector2(-1, -1), Vector2(-1, 1), Vector2(1, -1)]
var last_pixels = [null, null]
2020-05-07 14:02:35 +00:00
func reset() -> void:
last_pixels = [null, null]
func set_pixel(_sprite: Image, _pos: Vector2, _new_color: Color) -> void:
last_pixels.push_back([_pos, _sprite.get_pixel(_pos.x, _pos.y)])
_sprite.set_pixel(_pos.x, _pos.y, _new_color)
var corner = last_pixels.pop_front()
var neighbour = last_pixels[0]
if corner == null or neighbour == null:
return
if _pos - corner[0] in corners and _pos - neighbour[0] in neighbours:
_sprite.set_pixel(neighbour[0].x, neighbour[0].y, neighbour[1])
last_pixels[0] = corner
var pixel_perfect := false setget set_pixel_perfect
var h_mirror := false
var v_mirror := false
var simple_drawer := SimpleDrawer.new()
var pixel_perfect_drawers = [PixelPerfectDrawer.new(), PixelPerfectDrawer.new(), PixelPerfectDrawer.new(), PixelPerfectDrawer.new()]
var drawers = [simple_drawer, simple_drawer, simple_drawer, simple_drawer]
func reset() -> void:
for drawer in pixel_perfect_drawers:
drawer.reset()
func set_pixel_perfect(value: bool) -> void:
pixel_perfect = value
if pixel_perfect:
drawers = pixel_perfect_drawers.duplicate()
else:
drawers = [simple_drawer, simple_drawer, simple_drawer, simple_drawer]
func set_pixel(_sprite: Image, _pos: Vector2, _new_color: Color) -> void:
var mirror_x = Global.canvas.x_max + Global.canvas.x_min - _pos.x - 1
var mirror_y = Global.canvas.y_max + Global.canvas.y_min - _pos.y - 1
drawers[0].set_pixel(_sprite, _pos, _new_color)
if h_mirror:
drawers[1].set_pixel(_sprite, Vector2(mirror_x, _pos.y), _new_color)
if v_mirror:
drawers[2].set_pixel(_sprite, Vector2(mirror_x, mirror_y), _new_color)
if v_mirror:
drawers[3].set_pixel(_sprite, Vector2(_pos.x, mirror_y), _new_color)