troncage du poisson

Poisson.gd

@@ -10,11 +10,19 @@ var data = {
 	spacing = default_spacing
 }
 
+var polygon_data = {
+	width = 500,
+	height = 500,
+	spacing = 1.5
+}
+
 var poisson_disc_sampling: PoissonDiscSampling = PoissonDiscSampling.new()
 var points = PoolByteArray()
 var poissons = []
+var truncs = []
 
 signal new_poisson(points)
+signal new_truncs(truncs)
 
 func _ready():
 	reset_options(default_width, default_height, default_spacing)
@@ -72,3 +80,66 @@ func _on_OpenFileDialog_file_selected(path):
 	reset_options(new_data.width, new_data.height, new_data.spacing)
 	points = file.get_var()
 	emit_signal("new_poisson", points)
+
+
+func _on_trunc_pressed():
+	truncs = []
+	# Création d'un polygon
+	var polygon = PoolVector2Array([
+		Vector2(0, 0), 
+		Vector2(polygon_data.width, 0), 
+		Vector2(polygon_data.width, 
+		polygon_data.height), 
+		Vector2(0, polygon_data.height)
+	])
+
+	# Exemple d'hexagone
+	polygon = PoolVector2Array([
+		Vector2(200, 0), 
+		Vector2(400, 133), 
+		Vector2(400, 266), 
+		Vector2(200, 400),
+		Vector2(0, 266),
+		Vector2(0, 133),
+	])
+
+
+
+	# Spacing
+	# Si sup à celui de base, le polygon doit se rétrécir proportionnellement
+	# Les positions des points augmentent à la fin
+	# Et inversement
+
+	var factor = float(polygon_data.spacing) / float(data.spacing)
+
+	for i in polygon.size():
+		var vector = Vector2(polygon[i].x / factor, polygon[i].y / factor)
+		polygon.set(i, vector)
+
+	var max_point = Vector2(0, 0)
+	for point in polygon:
+		if point.x > max_point.x:
+			max_point.x = point.x
+		if point.y > max_point.y:
+			max_point.y = point.y
+
+	# Déplacement du polygon de telle sorte qu'il reste dans le carré original.
+	var rng = RandomNumberGenerator.new()
+	rng.randomize()
+	var offset = Vector2(rng.randi_range(0, data.width - max_point.x), rng.randi_range(0, data.height - max_point.y))
+	polygon = Transform2D(0, offset).xform(polygon)
+	max_point += offset
+
+	
+
+	# On récupère les points à l'intérieur du polygon
+	for i in range(offset.x, max_point.x):
+		for j in range(offset.y, max_point.y):
+			var trunc = Vector2(i, j)
+			if Geometry.is_point_in_polygon(trunc, polygon):
+				if points[i + j * data.width]:
+					trunc -= offset
+					trunc *= factor
+					truncs.append(trunc)
+
+	emit_signal("new_truncs", truncs)

Poisson.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=2]
+[gd_scene load_steps=4 format=2]
 
 [ext_resource path="res://Poisson.gd" type="Script" id=1]
 [ext_resource path="res://Previsualisation.gd" type="Script" id=2]
+[ext_resource path="res://Previsualisation2.gd" type="Script" id=3]
 
 [node name="Poisson" type="Control"]
 anchor_right = 1.0
@@ -14,7 +15,7 @@ margin_bottom = 40.0
 
 [node name="Properties" type="VBoxContainer" parent="HBoxContainer"]
 margin_right = 121.0
-margin_bottom = 152.0
+margin_bottom = 176.0
 
 [node name="width" type="HBoxContainer" parent="HBoxContainer/Properties"]
 margin_right = 121.0
@@ -69,26 +70,41 @@ margin_right = 121.0
 margin_bottom = 104.0
 text = "Générer"
 
-[node name="open" type="Button" parent="HBoxContainer/Properties"]
+[node name="trunc" type="Button" parent="HBoxContainer/Properties"]
 margin_top = 108.0
 margin_right = 121.0
 margin_bottom = 128.0
-text = "Ouvrir"
+text = "Tronquer"
 
-[node name="save" type="Button" parent="HBoxContainer/Properties"]
+[node name="open" type="Button" parent="HBoxContainer/Properties"]
 margin_top = 132.0
 margin_right = 121.0
 margin_bottom = 152.0
+text = "Ouvrir"
+
+[node name="save" type="Button" parent="HBoxContainer/Properties"]
+margin_top = 156.0
+margin_right = 121.0
+margin_bottom = 176.0
 text = "Enregistrer"
 
 [node name="ScrollContainer" type="ScrollContainer" parent="."]
 margin_left = 125.0
-margin_right = 653.0
+margin_right = 640.0
-margin_bottom = 502.0
+margin_bottom = 503.0
 
 [node name="Previsualisation" type="TextureRect" parent="ScrollContainer"]
 script = ExtResource( 2 )
 
+[node name="ScrollContainer2" type="ScrollContainer" parent="."]
+margin_left = 678.0
+margin_top = 2.0
+margin_right = 1193.0
+margin_bottom = 505.0
+
+[node name="Previsualisation" type="TextureRect" parent="ScrollContainer2"]
+script = ExtResource( 3 )
+
 [node name="SaveFileDialog" type="FileDialog" parent="."]
 margin_left = 83.0
 margin_top = 133.0
@@ -107,7 +123,9 @@ mode = 0
 access = 2
 
 [connection signal="new_poisson" from="." to="ScrollContainer/Previsualisation" method="_on_Control_new_poisson"]
+[connection signal="new_truncs" from="." to="ScrollContainer2/Previsualisation" method="_on_Poisson_new_truncs"]
 [connection signal="pressed" from="HBoxContainer/Properties/generate" to="." method="_on_Button_pressed"]
+[connection signal="pressed" from="HBoxContainer/Properties/trunc" to="." method="_on_trunc_pressed"]
 [connection signal="pressed" from="HBoxContainer/Properties/open" to="." method="_on_open_pressed"]
 [connection signal="pressed" from="HBoxContainer/Properties/save" to="." method="_on_save_pressed"]
 [connection signal="file_selected" from="SaveFileDialog" to="." method="_on_SaveFileDialog_file_selected"]

Previsualisation2.gd

@@ -0,0 +1,23 @@
+extends TextureRect
+
+var image
+
+func create_image(points):
+	var width = get_parent().get_parent().polygon_data.width
+	var height = get_parent().get_parent().polygon_data.height
+	image = Image.new()
+	image.create(width, height, false, Image.FORMAT_RGBA8)	
+	image.fill(Color.white)
+	image.lock()
+	for point in points:
+		image.set_pixel(point.x, point.y, Color.black)
+	image.unlock()
+	
+func update_texture():
+	var texture = ImageTexture.new()
+	texture.create_from_image(image)
+	set_texture(texture)
+
+func _on_Poisson_new_truncs(truncs):
+	create_image(truncs)
+	update_texture()