From db881c0dc8368ac15f428d4b5646b351c205cc56 Mon Sep 17 00:00:00 2001
From: ZappoMan <bradh@konamoxt.com>
Date: Fri, 10 Oct 2014 10:32:18 -0700
Subject: [PATCH] add boundBox gettable property to EntityItemProperties

---
 .../entities/src/EntityItemProperties.cpp     | 27 +++++++++++++++++++
 libraries/entities/src/EntityItemProperties.h |  1 +
 2 files changed, 28 insertions(+)

diff --git a/libraries/entities/src/EntityItemProperties.cpp b/libraries/entities/src/EntityItemProperties.cpp
index 1080a866f5..2690bcd45b 100644
--- a/libraries/entities/src/EntityItemProperties.cpp
+++ b/libraries/entities/src/EntityItemProperties.cpp
@@ -174,6 +174,16 @@ QScriptValue EntityItemProperties::copyToScriptValue(QScriptEngine* engine) cons
     sittingPoints.setProperty("length", _sittingPoints.size());
     COPY_PROPERTY_TO_QSCRIPTVALUE_GETTER(sittingPoints, sittingPoints); // gettable, but not settable
 
+    AABox aaBox = getAABoxInMeters();
+    QScriptValue boundingBox = engine->newObject();
+    QScriptValue bottomRightNear = vec3toScriptValue(engine, aaBox.getCorner());
+    QScriptValue topFarLeft = vec3toScriptValue(engine, aaBox.calcTopFarLeft());
+    QScriptValue center = vec3toScriptValue(engine, aaBox.calcCenter());
+    boundingBox.setProperty("brn", bottomRightNear);
+    boundingBox.setProperty("tfl", topFarLeft);
+    boundingBox.setProperty("center", center);
+    COPY_PROPERTY_TO_QSCRIPTVALUE_GETTER(boundingBox, boundingBox); // gettable, but not settable
+
     return properties;
 }
 
@@ -643,3 +653,20 @@ AACube EntityItemProperties::getMaximumAACubeInMeters() const {
 
     return AACube(minimumCorner, diameter);
 }
+
+// The minimum bounding box for the entity.
+AABox EntityItemProperties::getAABoxInMeters() const { 
+
+    // _position represents the position of the registration point.
+    glm::vec3 registrationRemainder = glm::vec3(1.0f, 1.0f, 1.0f) - _registrationPoint;
+    
+    glm::vec3 unrotatedMinRelativeToEntity = glm::vec3(0.0f, 0.0f, 0.0f) - (_dimensions * _registrationPoint);
+    glm::vec3 unrotatedMaxRelativeToEntity = _dimensions * registrationRemainder;
+    Extents unrotatedExtentsRelativeToRegistrationPoint = { unrotatedMinRelativeToEntity, unrotatedMaxRelativeToEntity };
+    Extents rotatedExtentsRelativeToRegistrationPoint = unrotatedExtentsRelativeToRegistrationPoint.getRotated(getRotation());
+    
+    // shift the extents to be relative to the position/registration point
+    rotatedExtentsRelativeToRegistrationPoint.shiftBy(_position);
+    
+    return AABox(rotatedExtentsRelativeToRegistrationPoint);
+}
diff --git a/libraries/entities/src/EntityItemProperties.h b/libraries/entities/src/EntityItemProperties.h
index 3c77b63ab6..6e1594fb9b 100644
--- a/libraries/entities/src/EntityItemProperties.h
+++ b/libraries/entities/src/EntityItemProperties.h
@@ -101,6 +101,7 @@ public:
     
     AACube getMaximumAACubeInTreeUnits() const;
     AACube getMaximumAACubeInMeters() const;
+    AABox getAABoxInMeters() const;
 
     void debugDump() const;