project_teddy/addons/zylann.hterrain/tools/brush/settings_dialog/preview_scratchpad.gd

70 lines
2.2 KiB
GDScript

@tool
extends Control
const HT_PreviewPainter = preload("./preview_painter.gd")
# TODO Can't preload because it causes the plugin to fail loading if assets aren't imported
#const HT_DefaultBrushTexture = preload("../shapes/round2.exr")
const HT_Brush = preload("../brush.gd")
const HT_Logger = preload("../../../util/logger.gd")
const HT_EditorUtil = preload("../../util/editor_util.gd")
const HT_Util = preload("../../../util/util.gd")
@onready var _texture_rect : TextureRect = $TextureRect
@onready var _painter : HT_PreviewPainter = $Painter
var _logger := HT_Logger.get_for(self)
func _ready():
if HT_Util.is_in_edited_scene(self):
# If it runs in the edited scene,
# saving the scene would also save the ImageTexture in it...
return
reset_image()
# Default so it doesnt crash when painting and can be tested
var default_brush_texture = \
HT_EditorUtil.load_texture(HT_Brush.DEFAULT_BRUSH_TEXTURE_PATH, _logger)
_painter.get_brush().set_shapes([default_brush_texture])
func reset_image():
var image = Image.create(_texture_rect.size.x, _texture_rect.size.y, false, Image.FORMAT_RGB8)
image.fill(Color(1,1,1))
# TEST
# var fnl = FastNoiseLite.new()
# for y in image.get_height():
# for x in image.get_width():
# var g = 0.5 + 0.5 * fnl.get_noise_2d(x, y)
# image.set_pixel(x, y, Color(g, g, g, 1.0))
var texture = ImageTexture.create_from_image(image)
_texture_rect.texture = texture
_painter.set_image_texture(image, texture)
func get_painter() -> HT_PreviewPainter:
return _painter
func _gui_input(event):
if event is InputEventMouseMotion:
if Input.is_mouse_button_pressed(MOUSE_BUTTON_LEFT):
_painter.paint_input(event.position, event.pressure)
queue_redraw()
elif event is InputEventMouseButton:
if event.button_index == MOUSE_BUTTON_LEFT:
if event.pressed:
# TODO `pressure` is not available on button events
# So I have to assume zero... which means clicks do not paint anything?
_painter.paint_input(event.position, 0.0)
else:
_painter.get_brush().on_paint_end()
func _draw():
var mpos = get_local_mouse_position()
var brush = _painter.get_brush()
draw_arc(mpos, 0.5 * brush.get_size(), -PI, PI, 32, Color(1, 0.2, 0.2), 2.0, true)