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deps/include/Box2D/Particle/b2ParticleAssembly.cpp

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+/*
+* Copyright (c) 2013 Google, Inc.
+*
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 1. The origin of this software must not be misrepresented; you must not
+* claim that you wrote the original software. If you use this software
+* in a product, an acknowledgment in the product documentation would be
+* appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+* misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+*/
+#include <Box2D/Particle/b2ParticleAssembly.h>
+#include <Box2D/Particle/b2ParticleSystem.h>
+
+extern "C" {
+
+// Helper function, called from assembly routine.
+void GrowParticleContactBuffer(
+	b2GrowableBuffer<b2ParticleContact>& contacts)
+{
+	// Set contacts.count = capacity instead of count because there are
+	// items past the end of the array waiting to be post-processed.
+	// We must maintain the entire contacts array.
+	// TODO: It would be better to have the items awaiting post-processing
+	// in their own array on the stack.
+	contacts.SetCount(contacts.GetCapacity());
+	contacts.Grow();
+}
+
+} // extern "C"
+