git mv Code\Sandbox\Editor Code/Editor

Signed-off-by: Esteban Papp <81431996+amznestebanpapp@users.noreply.github.com>
2021-06-29 12:41:59 -07:00
parent 9f0bbf3b74
commit e34e36cb35
1415 changed files with 0 additions and 0 deletions
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project
+ * 
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+
+// Description : Calculate the reference frame for sub-object selections.
+
+#include "EditorDefs.h"
+
+#include "SubObjectSelectionReferenceFrameCalculator.h"
+
+SubObjectSelectionReferenceFrameCalculator::SubObjectSelectionReferenceFrameCalculator(ESubObjElementType selectionType)
+    :   m_anySelected(false)
+    , pos(0.0f, 0.0f, 0.0f)
+    , normal(0.0f, 0.0f, 0.0f)
+    , nNormals(0)
+    , selectionType(selectionType)
+    , bUseExplicitFrame(false)
+    , bExplicitAnySelected(false)
+{
+}
+
+void SubObjectSelectionReferenceFrameCalculator::SetExplicitFrame(bool bAnySelected, const Matrix34& refFrame)
+{
+    this->m_refFrame = refFrame;
+    this->bUseExplicitFrame = true;
+    this->bExplicitAnySelected = bAnySelected;
+}
+
+bool SubObjectSelectionReferenceFrameCalculator::GetFrame(Matrix34& refFrame)
+{
+    if (this->bUseExplicitFrame)
+    {
+        refFrame = this->m_refFrame;
+        return this->bExplicitAnySelected;
+    }
+    else
+    {
+        refFrame.SetIdentity();
+
+        if (this->nNormals > 0)
+        {
+            this->normal = this->normal / this->nNormals;
+            if (!this->normal.IsZero())
+            {
+                this->normal.Normalize();
+            }
+
+            // Average position.
+            this->pos = this->pos / this->nNormals;
+            refFrame.SetTranslation(this->pos);
+        }
+
+        if (this->m_anySelected)
+        {
+            if (!this->normal.IsZero())
+            {
+                Vec3 xAxis(1, 0, 0), yAxis(0, 1, 0), zAxis(0, 0, 1);
+                if (this->normal.IsEquivalent(zAxis) || normal.IsEquivalent(-zAxis))
+                {
+                    zAxis = xAxis;
+                }
+                xAxis = this->normal.Cross(zAxis).GetNormalized();
+                yAxis = xAxis.Cross(this->normal).GetNormalized();
+                refFrame.SetFromVectors(xAxis, yAxis, normal, pos);
+            }
+        }
+
+        return m_anySelected;
+    }
+}