70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
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/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "chipmunk/chipmunk_private.h"
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void
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cpSpatialIndexFree(cpSpatialIndex *index)
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{
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if(index){
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cpSpatialIndexDestroy(index);
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cpfree(index);
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}
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}
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cpSpatialIndex *
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cpSpatialIndexInit(cpSpatialIndex *index, cpSpatialIndexClass *klass, cpSpatialIndexBBFunc bbfunc, cpSpatialIndex *staticIndex)
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{
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index->klass = klass;
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index->bbfunc = bbfunc;
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index->staticIndex = staticIndex;
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if(staticIndex){
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cpAssertHard(!staticIndex->dynamicIndex, "This static index is already associated with a dynamic index.");
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staticIndex->dynamicIndex = index;
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}
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return index;
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}
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typedef struct dynamicToStaticContext {
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cpSpatialIndexBBFunc bbfunc;
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cpSpatialIndex *staticIndex;
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cpSpatialIndexQueryFunc queryFunc;
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void *data;
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} dynamicToStaticContext;
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static void
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dynamicToStaticIter(void *obj, dynamicToStaticContext *context)
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{
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cpSpatialIndexQuery(context->staticIndex, obj, context->bbfunc(obj), context->queryFunc, context->data);
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}
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void
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cpSpatialIndexCollideStatic(cpSpatialIndex *dynamicIndex, cpSpatialIndex *staticIndex, cpSpatialIndexQueryFunc func, void *data)
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{
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if(staticIndex && cpSpatialIndexCount(staticIndex) > 0){
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dynamicToStaticContext context = {dynamicIndex->bbfunc, staticIndex, func, data};
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cpSpatialIndexEach(dynamicIndex, (cpSpatialIndexIteratorFunc)dynamicToStaticIter, &context);
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}
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}
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