45 lines
1.7 KiB
Plaintext
45 lines
1.7 KiB
Plaintext
// Filename: renderEffect.I
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// Created by: drose (14Mar02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Function: RenderEffect::compare_to
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// Access: Published
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// Description: Provides an arbitrary ordering among all unique
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// RenderEffects, so we can store the essentially
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// different ones in a big set and throw away the rest.
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//
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// This method is not needed outside of the RenderEffect
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// class because all equivalent RenderEffect objects are
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// guaranteed to share the same pointer; thus, a pointer
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// comparison is always sufficient.
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////////////////////////////////////////////////////////////////////
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INLINE int RenderEffect::
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compare_to(const RenderEffect &other) const {
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// First, we compare the types; if they are of different types then
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// they sort differently.
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TypeHandle type = get_type();
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TypeHandle other_type = other.get_type();
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if (type != other_type) {
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return type.get_index() - other_type.get_index();
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}
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// We only call compare_to_impl() if they have the same type.
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return compare_to_impl(&other);
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}
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