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Copy scene when entering play mode

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This commit is contained in:
Simon Lübeß
2023-03-18 23:30:57 +01:00
parent 793aa40975
commit c164aeecaa
14 changed files with 172 additions and 248 deletions
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GlitchyEngine/src/World/Scene.bf
+65 -12
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@@ -11,7 +11,7 @@ namespace GlitchyEngine.World
using internal ScriptableEntity;
using internal GlitchyEngine.World;
class Scene
class Scene : RefCounter
{
internal EcsWorld _ecsWorld = new .() ~ delete _;
@@ -26,6 +26,8 @@ namespace GlitchyEngine.World
private AssetHandle _gammaCorrectEffect;
private uint32 _viewportWidth, _viewportHeight;
// Maps ids to the entities they represent.
private Dictionary<UUID, EcsEntity> _idToEntity = new .() ~ delete _;
@@ -56,7 +58,7 @@ namespace GlitchyEngine.World
_onComponentAddedHandlers.Add(typeof(CameraComponent), (e, t, c) => {
CameraComponent* cameraComponent = (.)c;
cameraComponent.Camera.SetViewportSize(e.Scene.ViewportWidth, e.Scene.ViewportHeight);
cameraComponent.Camera.SetViewportSize(e.Scene._viewportWidth, e.Scene._viewportHeight);
});
RenderTargetGroupDescription desc = .(100, 100,
@@ -82,6 +84,59 @@ namespace GlitchyEngine.World
public ~this()
{
}
public void CopyTo(Scene target)
{
// Copy entities
for (let sourceHandle in _ecsWorld.Enumerate())
{
Entity sourceEntity = .(sourceHandle, this);
target.CreateEntity(sourceEntity.Name, sourceEntity.UUID);
}
// TODO: perhaps use reflection and comptime
// Copy components
//CopyComponents<TransformComponent>(this, target); /* Parent will be copied below*/
CopyComponents<MeshRendererComponent>(this, target);
CopyComponents<EditorComponent>(this, target);
CopyComponents<SpriteRendererComponent>(this, target);
CopyComponents<CameraComponent>(this, target);
CopyComponents<NativeScriptComponent>(this, target);
CopyComponents<LightComponent>(this, target);
CopyComponents<Rigidbody2DComponent>(this, target);
CopyComponents<BoxCollider2DComponent>(this, target);
CopyComponents<CircleCollider2DComponent>(this, target);
// Copy transforms
for (let (sourceHandle, sourceTransform) in _ecsWorld.Enumerate<TransformComponent>())
{
Entity sourceEntity = Entity(sourceHandle, this);
Entity sourceParent = Entity(sourceTransform.Parent, this);
Entity targetEntity = target.GetEntityByID(sourceEntity.UUID);
*targetEntity.Transform = *sourceTransform;
if (sourceParent.IsValid)
{
Entity targetParent = target.GetEntityByID(sourceParent.UUID);
targetEntity.Parent = targetParent;
}
}
target.OnViewportResize(_viewportWidth, _viewportHeight);
}
private static void CopyComponents<TComponent>(Scene source, Scene target) where TComponent : struct, new
{
for (let (sourceHandle, sourceComponent) in source._ecsWorld.Enumerate<TComponent>())
{
Entity sourceEntity = .(sourceHandle, source);
Entity targetEntity = target.GetEntityByID(sourceEntity.UUID);
targetEntity.AddComponent<TComponent>(*sourceComponent);
}
}
b2Vec2 _gravity2D = .(0.0f, -9.8f);
@@ -256,7 +311,7 @@ namespace GlitchyEngine.World
// Sprite renderer
Renderer2D.BeginScene(*primaryCamera, primaryCameraTransform, .BackToFront);
for (var (entity, transform, sprite) in _ecsWorld.Enumerate<TransformComponent, SpriterRendererComponent>())
for (var (entity, transform, sprite) in _ecsWorld.Enumerate<TransformComponent, SpriteRendererComponent>())
{
Renderer2D.DrawSprite(transform.WorldTransform, sprite, entity.Index);
}
@@ -469,7 +524,7 @@ namespace GlitchyEngine.World
// Sprite renderer
Renderer2D.BeginScene(camera, .BackToFront);
for (var (entity, transform, sprite) in _ecsWorld.Enumerate<TransformComponent, SpriterRendererComponent>())
for (var (entity, transform, sprite) in _ecsWorld.Enumerate<TransformComponent, SpriteRendererComponent>())
{
Renderer2D.DrawSprite(transform.WorldTransform, sprite, entity.Index);
}
@@ -502,12 +557,12 @@ namespace GlitchyEngine.World
}
/// Creates a new Entity with the given name.
public Entity CreateEntity(String name = "", UUID id = default)
public Entity CreateEntity(StringView name = "", UUID id = default)
{
Entity entity = Entity(_ecsWorld.NewEntity(), this);
entity.AddComponent<TransformComponent>();
let nameComponent = entity.AddComponent<DebugNameComponent>();
let nameComponent = entity.AddComponent<NameComponent>();
nameComponent.SetName(name.IsEmpty ? "Entity" : name);
// If no id is given generate a random one.
@@ -549,13 +604,11 @@ namespace GlitchyEngine.World
return .Err;
}
private uint32 ViewportWidth, ViewportHeight;
/// Sets the size of the viewport into which the scene will be rendered.
public void OnViewportResize(uint32 width, uint32 height)
{
ViewportWidth = width;
ViewportHeight = height;
_viewportWidth = width;
_viewportHeight = height;
for (var (entity, cameraComponent) in _ecsWorld.Enumerate<CameraComponent>())
{
@@ -565,8 +618,8 @@ namespace GlitchyEngine.World
}
}
_compositeTarget.Resize(ViewportWidth, ViewportHeight);
_cameraTarget.Resize(ViewportWidth, ViewportHeight);
_compositeTarget.Resize(_viewportWidth, _viewportHeight);
_cameraTarget.Resize(_viewportWidth, _viewportHeight);
}
private void OnComponentAdded(Entity entity, Type componentType, void* component)