83 lines
1.5 KiB
C++
83 lines
1.5 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file physxMask.cxx
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* @author enn0x
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* @date 2009-10-21
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*/
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#include "physxMask.h"
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/**
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* Returns a PhysxMask whose bits are all on.
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*/
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PhysxMask PhysxMask::
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all_on() {
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PhysxMask mask;
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mask._mask = 0xffffffff;
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return mask;
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}
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/**
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* Returns a PhysxMask whose bits are all off.
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*/
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PhysxMask PhysxMask::
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all_off() {
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PhysxMask mask;
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mask._mask = 0x0000000;
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return mask;
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}
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/**
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* Sets the nth bit on. Index must be in the range [0, 31].
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*/
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void PhysxMask::
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set_bit(unsigned int idx) {
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nassertv_always(idx >= 0 && idx <= 31);
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_mask = _mask | (1 << idx);
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}
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/**
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* Sets the nth bit off. Index must be in the range [0, 31].
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*/
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void PhysxMask::
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clear_bit(unsigned int idx) {
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nassertv_always(idx >= 0 && idx <= 31);
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_mask = _mask & ~(1 << idx);
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}
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/**
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* Returns true if the nth bit is set, false if it is cleared. Index must be
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* in the range [0, 31].
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*/
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bool PhysxMask::
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get_bit(unsigned int idx) const {
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nassertr_always(idx >= 0 && idx <= 31, false);
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return (_mask & (1 << idx)) ? true : false;
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}
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/**
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* Writes the PhysxMask out as a list of ones and zeros.
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*/
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void PhysxMask::
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output(ostream &out) const {
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string name;
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for (int i=0; i<32; i++) {
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name += (_mask & (1 << i)) ? '1' : '0';
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}
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out << "/" << name << "/";
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}
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