GRAPHICS: Add Model::getCenter() and Model::getAbsoluteCenter()

xoreos · Dec 25, 2012 · b8ec5d7 · b8ec5d7
1 parent 6656155
commit b8ec5d7
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diff --git a/src/graphics/aurora/model.cpp b/src/graphics/aurora/model.cpp
@@ -218,6 +218,22 @@ void Model::setRotation(float x, float y, float z) {
 	GfxMan.unlockFrame();
 }
 
+void Model::getCenter(float &x, float &y, float &z) {
+	x = _center[0] * _modelScale[0];
+	y = _center[1] * _modelScale[1];
+	z = _center[2] * _modelScale[2];
+}
+
+void Model::getAbsoluteCenter(float &x, float &y, float &z) {
+	Common::TransformationMatrix center = _absolutePosition;
+
+	center.translate(_center[0], _center[1], _center[2]);
+
+	x = center.getX();
+	y = center.getY();
+	z = center.getZ();
+}
+
 void Model::move(float x, float y, float z) {
 	x /= _modelScale[0];
 	y /= _modelScale[1];

diff --git a/src/graphics/aurora/model.h b/src/graphics/aurora/model.h
@@ -96,6 +96,11 @@ class Model : public GLContainer, public Renderable {
 	/** Set the current rotation of the model. */
 	void setRotation(float x, float y, float z);
 
+	/** Get the model's center position. */
+	void getCenter(float &x, float &y, float &z);
+	/** Get the model's center position after translate/rotate. */
+	void getAbsoluteCenter(float &x, float &y, float &z);
+
 	/** Move the model, relative to its current position. */
 	void move  (float x, float y, float z);
 	/** Rotate the model, relative to its current rotation. */