mirror of https://github.com/axmolengine/axmol.git
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
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#include <stdlib.h>
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#include "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(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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