xiaoqi
/
SHADE_Y3
1
0
Fork 0
Code Issues 12 Pull Requests Packages Projects Releases 9 Wiki Activity

Reparenting objects maintain world transforms

This commit is contained in:
Diren D Bharwani 2022-10-20 18:35:57 +08:00
parent 0625ca6bcf
commit 314d497b66
6 changed files with 65 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
Assets/Editor/Layouts/UserLayout.ini
View File

@ -10,7 +10,7 @@ Collapsed=0
[Window][Hierarchy Panel]
Pos=0,142
Size=571,918
Size=349,918
Collapsed=0
DockId=0x00000004,0
@ -20,29 +20,29 @@ Size=400,400
Collapsed=0
[Window][Inspector]
Pos=1649,48
Size=271,1012
Pos=1483,48
Size=437,1012
Collapsed=0
DockId=0x00000006,0
[Window][Profiler]
Pos=0,48
Size=571,92
Size=349,92
Collapsed=0
DockId=0x00000003,0
[Window][Viewport]
Pos=573,48
Size=1074,1012
Pos=351,48
Size=1130,1012
Collapsed=0
DockId=0x00000002,0
[Docking][Data]
DockSpace ID=0xC5C9B8AB Window=0xBE4044E9 Pos=8,79 Size=1920,1012 Split=X
DockNode ID=0x00000005 Parent=0xC5C9B8AB SizeRef=1992,1036 Split=X
DockNode ID=0x00000001 Parent=0x00000005 SizeRef=571,1036 Split=Y Selected=0x1E6EB881
DockNode ID=0x00000005 Parent=0xC5C9B8AB SizeRef=1481,1036 Split=X
DockNode ID=0x00000001 Parent=0x00000005 SizeRef=349,1036 Split=Y Selected=0x1E6EB881
DockNode ID=0x00000003 Parent=0x00000001 SizeRef=225,94 Selected=0x1E6EB881
DockNode ID=0x00000004 Parent=0x00000001 SizeRef=225,940 Selected=0xE096E5AE
DockNode ID=0x00000002 Parent=0x00000005 SizeRef=1074,1036 CentralNode=1 Selected=0x13926F0B
DockNode ID=0x00000006 Parent=0xC5C9B8AB SizeRef=271,1036 Selected=0xE7039252
DockNode ID=0x00000002 Parent=0x00000005 SizeRef=1130,1036 CentralNode=1 Selected=0x13926F0B
DockNode ID=0x00000006 Parent=0xC5C9B8AB SizeRef=437,1036 Selected=0xE7039252

6
SHADE_Application/src/Scenes/SBTestScene.cpp
View File

@ -77,9 +77,9 @@ namespace Sandbox
customMat->SetProperty("data.alpha", 0.1f);
// Create Stress Test Objects
static const SHVec3 TEST_OBJ_SCALE = SHVec3::One * 0.5f;
constexpr int NUM_ROWS = 10;
constexpr int NUM_COLS = 10;
static const SHVec3 TEST_OBJ_SCALE = SHVec3::One;
constexpr int NUM_ROWS = 2;
constexpr int NUM_COLS = 1;
static const SHVec3 TEST_OBJ_SPACING = { 0.1f, 0.1f, 0.1f };
static const SHVec3 TEST_OBJ_START_POS = { -(NUM_COLS / 2 * TEST_OBJ_SPACING.x) + 1.0f, -2.0f, -1.0f };

43
SHADE_Engine/src/Math/Transform/SHTransformSystem.cpp
View File

@ -17,7 +17,6 @@
#include "Scene/SHSceneManager.h"
#include "ECS_Base/Managers/SHComponentManager.h"
#include "ECS_Base/Managers/SHEntityManager.h"
#include "Tools/SHException.h"
namespace SHADE
{
@ -47,7 +46,9 @@ namespace SHADE
void SHTransformSystem::Init()
{
std::shared_ptr thisReceiver { std::make_shared<SHEventReceiverSpec<SHTransformSystem>>(this, &SHTransformSystem::ChangeParent) };
ReceiverPtr receiver = std::dynamic_pointer_cast<SHEventReceiver>(thisReceiver);
SHEventManager::SubscribeTo(SH_SCENEGRAPH_CHANGE_PARENT_EVENT, receiver);
}
void SHTransformSystem::Exit()
@ -59,6 +60,44 @@ namespace SHADE
/* Private Function Member Definitions */
/*-----------------------------------------------------------------------------------*/
SHEventHandle SHTransformSystem::ChangeParent(SHEventPtr changeParentEvent)
{
const auto& eventData = reinterpret_cast<const SHEventSpec<SHSceneGraphChangeParentEvent>*>(changeParentEvent.get());
// Get Current Respective Components
auto* tf = SHComponentManager::GetComponent<SHTransformComponent>(eventData->data->entityID);
const auto* PARENT = SHComponentManager::GetComponent_s<SHTransformComponent>(eventData->data->newParentID);
// Recompute local transform and store localToWorld Matrix
SHMatrix localToWorld = SHMatrix::Identity;
SHMatrix worldToLocal = SHMatrix::Identity;
if (PARENT != nullptr) // Not the root
{
localToWorld = PARENT->GetTRS();
worldToLocal = SHMatrix::Inverse(localToWorld);
}
// Maintain World Transform and recompute Local Transform
// Compute Local Position
tf->local.position = SHVec3::Transform(tf->world.position, worldToLocal);
// Compute Local Rotation
tf->local.rotation = tf->world.rotation;
if (PARENT)
tf->local.rotation -= PARENT->GetLocalRotation();
// Compute Local Scale
tf->local.scale = tf->world.scale;
if (PARENT)
tf->local.scale /= PARENT->GetLocalScale();
tf->local.trs = localToWorld;
return eventData->handle;
}
void SHTransformSystem::UpdateEntity(const SHSceneNode* node)
{
const auto* NODE_TRANSFORM = SHComponentManager::GetComponent_s<SHTransformComponent>(node->GetEntityID());

6
SHADE_Engine/src/Math/Transform/SHTransformSystem.h
View File

@ -84,8 +84,10 @@ namespace SHADE
/* Function Members */
/*---------------------------------------------------------------------------------*/
static void UpdateEntity (const SHSceneNode* node);
static void UpdateTransform(SHTransformComponent& tf, const SHTransformComponent* parent = nullptr);
SHEventHandle ChangeParent (SHEventPtr changeParentEvent);
static void UpdateEntity (const SHSceneNode* node);
static void UpdateTransform (SHTransformComponent& tf, const SHTransformComponent* parent = nullptr);
};

10
SHADE_Engine/src/Scene/SHSceneGraph.cpp
View File

@ -367,8 +367,9 @@ namespace SHADE
const SHSceneGraphChangeParentEvent EVENT_DATA
{
.oldParentID = NODE_ITER->second->GetParent()->GetEntityID(),
.newParentID = parent->GetEntityID()
.entityID = entityID
, .oldParentID = NODE_ITER->second->GetParent()->GetEntityID()
, .newParentID = parent ? parent->GetEntityID() : root->GetEntityID()
};
if (parent == nullptr)
@ -412,8 +413,9 @@ namespace SHADE
const SHSceneGraphChangeParentEvent EVENT_DATA
{
.oldParentID = NODE_ITER->second->GetParent()->GetEntityID(),
.newParentID = parent
.entityID = entityID
, .oldParentID = NODE_ITER->second->GetParent()->GetEntityID()
, .newParentID = parent
};
SHSceneNode* currentNode = NODE_ITER->second;

1
SHADE_Engine/src/Scene/SHSceneGraph.h
View File

@ -163,6 +163,7 @@ namespace SHADE
struct SHSceneGraphChangeParentEvent
{
EntityID entityID;
EntityID oldParentID;
EntityID newParentID;
};