void CThreatMap::AddEnemyUnit(const EnemyUnit& e, const float scale) {
const int posx = e.pos.x / (SQUARE_SIZE * THREATRES);
const int posy = e.pos.z / (SQUARE_SIZE * THREATRES);
assert(!threatCellsRaw.empty());
if (!MAPPOS_IN_BOUNDS(e.pos)) {
std::stringstream msg;
msg << "[CThreatMap::AddEnemyUnit][frame=" << ai->cb->GetCurrentFrame() << "][scale=" << scale << "]\n";
msg << "\tposition <" << e.pos.x << ", " << e.pos.z << "> of unit " << e.id;
msg << " (health " << ai->ccb->GetUnitHealth(e.id) << ") is out-of-bounds\n";
ai->GetLogger()->Log(msg.str());
}
const float threat = e.threat * scale;
const float rangeSq = e.range * e.range;
for (int myx = int(posx - e.range); myx < (posx + e.range); myx++) {
if (myx < 0 || myx >= width) {
continue;
}
for (int myy = int(posy - e.range); myy < (posy + e.range); myy++) {
if (myy < 0 || myy >= height) {
continue;
}
const int dxSq = (posx - myx) * (posx - myx);
const int dySq = (posy - myy) * (posy - myy);
if ((dxSq + dySq - 0.5) <= rangeSq) {
assert((myy * width + myx) < threatCellsRaw.size());
assert((myy * width + myx) < threatCellsVis.size());
// MicroPather cannot deal with negative costs
// (which may arise due to floating-point drift)
// nor with zero-cost nodes (see MP::SetMapData,
// threat is not used as an additive overlay)
threatCellsRaw[myy * width + myx] = std::max(threatCellsRaw[myy * width + myx] + threat, THREATVAL_BASE);
threatCellsVis[myy * width + myx] = std::max(threatCellsVis[myy * width + myx] + threat, THREATVAL_BASE);
currSumThreat += threat;
}
}
}
currAvgThreat = currSumThreat / area;
}
bool CPathFinder::IsPositionReachable(const MoveData* md, const float3& pos) const {
if (md == 0) {
// aircraft or building
return true;
}
if (!MAPPOS_IN_BOUNDS(pos)) {
return false;
}
const float* hgtMap = ai->cb->GetHeightMap();
const float* slpMap = ai->cb->GetSlopeMap();
const int WH = ai->cb->GetMapWidth();
const int WS = WH >> 1;
const int xh = (pos.x / SQUARE_SIZE);
const int zh = (pos.z / SQUARE_SIZE);
const int xs = xh >> 1;
const int zs = zh >> 1;
bool heightOK = false;
bool slopeOK = false;
switch (md->moveFamily) {
case MoveData::Ship: {
heightOK = (hgtMap[zh * WH + xh] < -md->depth);
slopeOK = true;
} break;
case MoveData::Tank:
case MoveData::KBot: {
heightOK = (hgtMap[zh * WH + xh] > -md->depth);
slopeOK = (slpMap[zs * WS + xs] < md->maxSlope);
} break;
case MoveData::Hover: {
heightOK = true;
slopeOK = (slpMap[zs * WS + xs] < md->maxSlope);
} break;
}
return (heightOK && slopeOK);
}
