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unsafe drag drop test

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- unsafe because of entity reference
- unsafe because of unsafe code lol
- fixes in parent/child system
This commit is contained in:
max
2024-10-15 22:29:19 +02:00
parent 5cc876fce9
commit ba88432e77
6 changed files with 79 additions and 14 deletions
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78
Nerfed.Editor/Systems/EditorHierarchyWindow.cs
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@@ -1,7 +1,9 @@
using ImGuiNET;
using MoonTools.ECS;
using Nerfed.Editor.Components;
using Nerfed.Runtime;
using Nerfed.Runtime.Components;
using Nerfed.Runtime.Util;
namespace Nerfed.Editor.Systems
{
@@ -10,7 +12,7 @@ namespace Nerfed.Editor.Systems
{
private const ImGuiTreeNodeFlags baseFlags = ImGuiTreeNodeFlags.OpenOnArrow | ImGuiTreeNodeFlags.OpenOnDoubleClick | ImGuiTreeNodeFlags.SpanAvailWidth;
private readonly Filter rootEntitiesWithTransformFilter;
//private readonly Filter rootEntitiesWithTransformFilter;
//private readonly Filter rootEntitiesFilterBroken;
private readonly Filter rootEntitiesFilter;
@@ -18,7 +20,7 @@ namespace Nerfed.Editor.Systems
public EditorHierarchyWindow(World world) : base(world)
{
rootEntitiesWithTransformFilter = FilterBuilder.Include<LocalTransform>().Exclude<Child>().Build();
//rootEntitiesWithTransformFilter = FilterBuilder.Include<LocalTransform>().Exclude<Child>().Build();
// TODO: this doesn't work.
//rootEntitiesFilterBroken = FilterBuilder.Exclude<Child>().Build();
@@ -42,11 +44,29 @@ namespace Nerfed.Editor.Systems
if (ImGui.TreeNodeEx("World", flags))
{
foreach (Entity entity in rootEntitiesWithTransformFilter.Entities)
if (ImGui.BeginDragDropTarget())
{
DrawEntityAndChildren(entity);
unsafe
{
ImGuiPayloadPtr payload = ImGui.AcceptDragDropPayload($"{nameof(EditorHierarchyWindow)}");
if (payload.NativePtr != null)
{
Entity* data = (Entity*)payload.Data;
Entity child = data[0];
Log.Info($"Dropped {child.ID}");
Transform.RemoveParent(World, child);
}
}
ImGui.EndDragDropTarget();
}
//foreach (Entity entity in rootEntitiesWithTransformFilter.Entities)
//{
// DrawEntityAndChildren(entity);
//}
foreach (Entity entity in rootEntitiesFilter.Entities)
{
DrawEntityAndChildren(entity);
@@ -76,9 +96,41 @@ namespace Nerfed.Editor.Systems
if (ImGui.TreeNodeEx($"{entity.ID} | {GetTag(entity)}", flags))
{
// Selection.
if (ImGui.IsItemClicked() && !ImGui.IsItemToggledOpen())
{
World.Set(entity, new ClickedInHierarchy());
World.Set(entity, new ClickedInHierachy());
}
// Drag and drop.
if (ImGui.BeginDragDropSource())
{
unsafe
{
fixed (Entity* payload = &entity)
{
ImGui.SetDragDropPayload($"{nameof(EditorHierarchyWindow)}", (IntPtr)payload, (uint)sizeof(Entity));
}
}
ImGui.EndDragDropSource();
}
if (ImGui.BeginDragDropTarget())
{
unsafe
{
ImGuiPayloadPtr payload = ImGui.AcceptDragDropPayload($"{nameof(EditorHierarchyWindow)}");
if (payload.NativePtr != null)
{
Entity* data = (Entity*)payload.Data;
Entity ent = data[0];
Log.Info($"Dropped {ent.ID}");
Transform.SetParent(World, ent, entity);
}
}
ImGui.EndDragDropTarget();
}
ReverseSpanEnumerator<Entity> childEntities = World.InRelations<ChildParentRelation>(entity);
@@ -100,7 +152,7 @@ namespace Nerfed.Editor.Systems
public EditorHierachySelectionSystem(World world) : base(world)
{
selectedEntities = FilterBuilder.Include<SelectedInHierachy>().Build();
clickedEntities = FilterBuilder.Include<ClickedInHierarchy>().Build();
clickedEntities = FilterBuilder.Include<ClickedInHierachy>().Build();
}
public override void Update(TimeSpan delta)
@@ -128,9 +180,21 @@ namespace Nerfed.Editor.Systems
Set(entity, new SelectedInHierachy());
}
Remove<ClickedInHierarchy>(entity);
Remove<ClickedInHierachy>(entity);
}
}
}
private class EditorHierachyDragAndDropSystem : MoonTools.ECS.System
{
public EditorHierachyDragAndDropSystem(World world) : base(world)
{
}
public override void Update(TimeSpan delta)
{
}
}
}
}