feat: implemented basic primitive tree display

modules/terrain_editor/primitive_layer_list.cpp

@@ -0,0 +1,86 @@
+#include "primitive_layer_list.h"
+#include "core/object/object.h"
+#include "scene/gui/tree.h"
+#include "terrain_editor/macros.h"
+#include "terrain_editor/terrain_primitive.h"
+
+void PrimitiveLayerList::_bind_methods() {
+	BIND_HPROPERTY(Variant::OBJECT, terrain, PROPERTY_HINT_NODE_TYPE, "TerrainMeshGenerator");
+}
+
+void PrimitiveLayerList::generate_subtree(size_t idx, Ref<TerrainPrimitive> prim, TreeItem *parent) {
+	TreeItem *base{ create_item(get_root()) };
+	base->set_text(0, vformat("%d", idx));
+	base->set_expand_right(0, false);
+	base->set_editable(0, true);
+	base->set_text(1, prim->get_name().is_empty() ? prim->get_class() : prim->get_name());
+	base->set_editable(1, true);
+	base->set_expand_right(1, true);
+	this->subtrees.insert(prim, base);
+}
+
+void PrimitiveLayerList::regenerate_tree(Array array) {
+	get_root()->clear_children();
+	this->subtrees.clear();
+	size_t i{ 0 };
+	for (Variant var : array) {
+		Ref<TerrainPrimitive> prim{ var };
+		if (prim.is_valid()) {
+			generate_subtree(i, prim, get_root());
+			++i;
+		}
+	}
+}
+
+void PrimitiveLayerList::switch_index(size_t from, size_t to) {
+	Array primitives = this->terrain->get_primitives();
+	Ref<TerrainPrimitive> primitive{ primitives.get(from) };
+	primitives.remove_at(from);
+	if (primitives.size() <= to) {
+		primitives.push_back(primitive);
+	} else {
+		primitives.insert(to, primitive);
+	}
+
+	this->terrain->set_primitives(primitives);
+}
+
+void PrimitiveLayerList::item_edited() {
+	TreeItem *edited{ get_edited() };
+	switch (get_edited_column()) {
+		default:
+			return;
+		case 0: // index
+			switch_index(edited->get_index(), edited->get_text(0).to_int());
+			return;
+		case 1: // name
+			return;
+	}
+}
+
+void PrimitiveLayerList::_notification(int what) {
+	if (Engine::get_singleton()->is_editor_hint()) {
+		return;
+	}
+	switch (what) {
+		default:
+			return;
+		case NOTIFICATION_READY:
+			connect("item_edited", callable_mp(this, &self_type::item_edited));
+			create_item();
+			set_hide_root(true);
+			if (this->terrain) {
+				this->terrain->connect(TerrainMeshGenerator::sig_primitive_list_changed, callable_mp(this, &self_type::regenerate_tree));
+				regenerate_tree(this->terrain->get_primitives());
+			}
+			return;
+	}
+}
+
+void PrimitiveLayerList::set_terrain(TerrainMeshGenerator *terrain) {
+	this->terrain = terrain;
+}
+
+TerrainMeshGenerator *PrimitiveLayerList::get_terrain() const {
+	return this->terrain;
+}

modules/terrain_editor/primitive_layer_list.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "core/templates/hash_map.h"
+#include "scene/gui/tree.h"
+#include "terrain_editor/terrain_mesh_generator.h"
+#include "terrain_editor/terrain_primitive.h"
+
+class PrimitiveLayerList : public Tree {
+	GDCLASS(PrimitiveLayerList, Tree);
+	static void _bind_methods();
+	void generate_subtree(size_t idx, Ref<TerrainPrimitive> prim, TreeItem *parent);
+	void regenerate_tree(Array array);
+	void switch_index(size_t from, size_t to);
+	void item_edited();
+
+protected:
+	void _notification(int what);
+
+public:
+	void set_terrain(TerrainMeshGenerator *generator);
+	TerrainMeshGenerator *get_terrain() const;
+
+private:
+	TerrainMeshGenerator *terrain{};
+	HashMap<Ref<TerrainPrimitive>, TreeItem *> subtrees{};
+};

modules/terrain_editor/register_types.cpp

@@ -5,6 +5,7 @@
 #include "scene/main/scene_tree.h"
 #include "terrain_editor/edit_history.h"
 #include "terrain_editor/point_primitive_node.h"
+#include "terrain_editor/primitive_layer_list.h"
 #include "terrain_editor/terrain_chunk.h"
 #include "terrain_editor/terrain_mesh_editor.h"
 #include "terrain_editor/terrain_mesh_generator.h"
@@ -26,6 +27,7 @@ void initialize_terrain_editor_module(ModuleInitializationLevel p_level) {
 	ClassDB::register_class<TerrainChunk>();
 	ClassDB::register_class<EditHistory>();
 	Engine::get_singleton()->add_singleton(Engine::Singleton("EditHistory", (EditHistory::singleton_instance = memnew(EditHistory)), "EditHistory"));
+	ClassDB::register_class<PrimitiveLayerList>();
 }
 
 void uninitialize_terrain_editor_module(ModuleInitializationLevel p_level) {

project/scenes/editor.tscn

@@ -9,7 +9,7 @@ slope = -0.7
 height = 0.0
 
 [sub_resource type="PointPrimitive" id="PointPrimitive_ba0ut"]
-blend_range = 20.0
+blend_range = 10.0
 center = Vector2(50, 0)
 slope = -0.7
 
@@ -42,8 +42,8 @@ fractal_weighted_strength = 0.58
 blend_mode = 1
 noise = SubResource("FastNoiseLite_ba0ut")
 
-[sub_resource type="PlanePrimitive" id="PlanePrimitive_pxqd5"]
+[sub_resource type="PlanePrimitive" id="PlanePrimitive_ba0ut"]
-blend_range = 10.0
+blend_range = 20.0
 baseline = -1.0
 
 [sub_resource type="Gradient" id="Gradient_b1cmn"]
@@ -120,20 +120,12 @@ func _unhandled_input(event: InputEvent) -> void:
 		global_position = (global_position - pivot).normalized() * distance + pivot
 "
 
-[sub_resource type="CylinderMesh" id="CylinderMesh_pxqd5"]
-
-[sub_resource type="Gradient" id="Gradient_pxqd5"]
-
-[sub_resource type="GradientTexture2D" id="GradientTexture2D_ba0ut"]
-gradient = SubResource("Gradient_pxqd5")
-
 [node name="Editor" type="Node3D" unique_id=1027707839]
 
 [node name="TerrainMeshEditor" type="TerrainMeshEditor" parent="." unique_id=1382595562]
-primitives = [SubResource("PointPrimitive_pxqd5"), SubResource("PointPrimitive_ba0ut"), SubResource("NoisePrimitive_ba0ut"), SubResource("NoisePrimitive_pxqd5"), SubResource("NoisePrimitive_q68jb"), SubResource("PlanePrimitive_pxqd5")]
+primitives = [SubResource("PointPrimitive_pxqd5"), SubResource("PointPrimitive_ba0ut"), SubResource("NoisePrimitive_ba0ut"), SubResource("NoisePrimitive_pxqd5"), SubResource("NoisePrimitive_q68jb"), SubResource("PlanePrimitive_ba0ut")]
 vertex_color_gradient = SubResource("Gradient_b1cmn")
 color_gradient_end_height = 100.0
-chunk_count = 15
 chunk_scene = ExtResource("1_pxqd5")
 point_primitive_object = ExtResource("1_b1cmn")
 
@@ -153,14 +145,10 @@ fov = 57.3
 far = 2000.0
 script = SubResource("GDScript_b1cmn")
 
-[node name="MeshInstance3D" type="MeshInstance3D" parent="." unique_id=613969950]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 7, 0)
-mesh = SubResource("CylinderMesh_pxqd5")
-
 [node name="LeftPanel" type="Panel" parent="." unique_id=1768834661]
 anchors_preset = 9
 anchor_bottom = 1.0
-offset_right = 193.0
+offset_right = 258.0
 grow_vertical = 2
 theme = ExtResource("3_ba0ut")
 
@@ -173,36 +161,17 @@ grow_horizontal = 2
 grow_vertical = 2
 current_tab = 0
 
-[node name="ScrollContainer" type="ScrollContainer" parent="LeftPanel/TabContainer" unique_id=1323188283]
+[node name="MarginContainer" type="MarginContainer" parent="LeftPanel/TabContainer" unique_id=1533578826]
 layout_mode = 2
+size_flags_horizontal = 3
+size_flags_vertical = 3
 metadata/_tab_index = 0
 
-[node name="MarginContainer" type="MarginContainer" parent="LeftPanel/TabContainer/ScrollContainer" unique_id=1533578826]
+[node name="Tree" type="PrimitiveLayerList" parent="LeftPanel/TabContainer/MarginContainer" unique_id=797700186 node_paths=PackedStringArray("terrain")]
 layout_mode = 2
-size_flags_horizontal = 3
+columns = 4
-size_flags_vertical = 3
+drop_mode_flags = 2
-
+select_mode = 1
-[node name="VBoxContainer" type="VBoxContainer" parent="LeftPanel/TabContainer/ScrollContainer/MarginContainer" unique_id=326791130]
+terrain = NodePath("../../../../TerrainMeshEditor")
-layout_mode = 2
-size_flags_horizontal = 3
-size_flags_vertical = 3
-
-[node name="HBoxContainer" type="HBoxContainer" parent="LeftPanel/TabContainer/ScrollContainer/MarginContainer/VBoxContainer" unique_id=247007395]
-layout_mode = 2
-size_flags_vertical = 2
-
-[node name="TextureRect" type="TextureRect" parent="LeftPanel/TabContainer/ScrollContainer/MarginContainer/VBoxContainer/HBoxContainer" unique_id=313030843]
-layout_mode = 2
-size_flags_horizontal = 0
-texture = SubResource("GradientTexture2D_ba0ut")
-expand_mode = 2
-stretch_mode = 4
-
-[node name="RichTextLabel" type="RichTextLabel" parent="LeftPanel/TabContainer/ScrollContainer/MarginContainer/VBoxContainer/HBoxContainer" unique_id=1765888481]
-layout_mode = 2
-size_flags_horizontal = 3
-bbcode_enabled = true
-text = "Layer 1"
-fit_content = true
 
 [connection signal="primitives_changed" from="TerrainMeshEditor" to="TerrainMeshEditor" method="_on_primitives_changed"]