Exemplo n.º 1
0
void heapFinalize(PartialColoringHeap *heap, char* f, int l) {
	heapClear(heap, f, l);
	int count = heap->item_count;
	if (count!=0) {
		printf("Error in finalizing heap: %d items left\n", count);
		assert(count!=0);
	}
	Free(heap->arrays);
	Free(heap->size);
	Free(heap->alloc_size);
}
Exemplo n.º 2
0
int peFindPathWW(PED* PE, MapNode* Start, MapNode* End, peTime StartTime, int Speed, PathStep** path)
{
  MapNode* v = Start;
  MapNode* s;
  MapNode* best = Start;
  int i;
  int BaseCost;
  int c,z;
  
  if (Start == End) return 0;
  
  PE->LastSID++;
  heapClear(PE->Open);
  
  v->g = 0;
  v->f = 0;
  v->h = (*PE->Heuristics)(PE, v, End);
  v->Steps = 0;
  v->Time = 0;
  heapAdd(PE->Open, v);
  
  while ((v != End) && (PE->Open->ActSize!=0))
  {
#ifdef PE_MONITOR  // pro monitorovani enginu
    peENodes++;
#endif
    
    v = PE->Open->HeapBuffer[1];
    heapRemove(PE->Open, v);
    
    // best position is the closest to the dest
    // and the most distanced from the start
    if ((v->h<best->h) || (v->h=best->h) && (v->g>best->g)) best = v; 
    
    for (i=0; i<8; i++)
    {
      s = peMapXY(PE, v->Pos.X+Dir2Delta[i][0], v->Pos.Y+Dir2Delta[i][1]); // s = sousedni policko
      if ((!s) || (s->TC==PE->MAXTC) || (s->Owner!=-1)) continue;
      if (s->SearchID == PE->LastSID)
      {
        if (s->HeapPos>0)
        {
          if (DirType[i]==0)
            BaseCost = PE->HorizontalCost;
          else
            BaseCost = PE->DiagonalCost;
          c = v->g + BaseCost;
          z = v->FootSteps;
          
          if (c + z < s->g)
          {
            s->h = (*PE->Heuristics)(PE, s, End);
            s->Steps = v->Steps + 1;
            s->Time = v->Time + Speed;
            s->f = (*PE->MixFunction)(PE, c, s->h, z);
            s->g = c + z;
            s->CameFrom = v->Pos;
            heapSiftUp(PE->Open, s->HeapPos);
          }
        }
        // else konecny
      } 
      else
      {
        s->SearchID = PE->LastSID;
        if (DirType[i]==0)
          BaseCost = PE->HorizontalCost;
        else
          BaseCost = PE->DiagonalCost;
        
        c = v->g + BaseCost;
        z = v->FootSteps;
        
        s->h = (*PE->Heuristics)(PE, s, End);
        s->Steps = v->Steps + 1;
        s->Time = v->Time + Speed;
        s->f = (*PE->MixFunction)(PE, c, s->h, z);
        s->g = c + z;
        s->CameFrom = v->Pos;
        if (heapAdd(PE->Open, s)==HP_NOSPACE)
        {
          // we ran out off free heap space
          // get the best known position and continue
          // after walker reaches this position
          End = best;
          v = best;
          break;
        }
      }
    }
  }
  if (Start == End) return 0;
  if (v!=End) return 0;
  if (!peAddPath(PE, path, End->Steps+1)) return 0;
  
  i=v->Steps+1;
  while (i>0)
  {
    i--;
    (*path)[i].Time = StartTime + v->Time;
    (*path)[i].Type = PST_CONTINUE | PST_FOOTSTEP;
    (*path)[i].Pos = v->Pos;
    v->FootSteps+=PE->FootStepCost;
    
    v=peMapXY(PE, v->CameFrom.X, v->CameFrom.Y);
  }
  
  (*path)[End->Steps].Type = PST_END | PST_FOOTSTEP;
  
  return End->Steps+1;
}