int MapFogFilterFlags(CPlayer &player, const Vec2i &pos, int mask)
{
if (Map.Info.IsPointOnMap(pos)) {
return MapFogFilterFlags(player, Map.getIndex(pos), mask);
}
return mask;
}
/**
** Can build unit-type at this point.
**
** @param unit Worker that want to build the building or NULL.
** @param type Building unit-type.
** @param pos tile map position.
** @param real Really build, or just placement
**
** @return OnTop, parent unit, builder on true, NULL false.
**
*/
CUnit *CanBuildUnitType(const CUnit *unit, const CUnitType &type, const Vec2i &pos, int real)
{
// Terrain Flags don't matter if building on top of a unit.
CUnit *ontop = CanBuildHere(unit, type, pos);
if (ontop == NULL) {
return NULL;
}
if (ontop != (CUnit *)1 && ontop != unit) {
return ontop;
}
// Remove unit that is building!
if (unit) {
UnmarkUnitFieldFlags(*unit);
}
CPlayer *player = NULL;
if (unit && unit->Player->Type == PlayerPerson) {
player = unit->Player;
}
int testmask;
unsigned int index = pos.y * Map.Info.MapWidth;
for (int h = 0; h < type.TileHeight; ++h) {
for (int w = type.TileWidth; w--;) {
/* first part of if (!CanBuildOn(x + w, y + h, testmask)) */
if (!Map.Info.IsPointOnMap(pos.x + w, pos.y + h)) {
h = type.TileHeight;
ontop = NULL;
break;
}
if (player && !real) {
//testmask = MapFogFilterFlags(player, x + w, y + h, type.MovementMask);
testmask = MapFogFilterFlags(*player,
index + pos.x + w, type.MovementMask);
} else {
testmask = type.MovementMask;
}
/*secound part of if (!CanBuildOn(x + w, y + h, testmask)) */
const CMapField &mf = *Map.Field(index + pos.x + w);
if (mf.CheckMask(testmask)) {
h = type.TileHeight;
ontop = NULL;
break;
}
if (player && !mf.playerInfo.IsExplored(*player)) {
h = type.TileHeight;
ontop = NULL;
break;
}
}
index += Map.Info.MapWidth;
}
if (unit) {
MarkUnitFieldFlags(*unit);
}
// We can build here: check distance to gold mine/oil patch!
return ontop;
}
//Wyrmgus start
//int MapFogFilterFlags(CPlayer &player, const Vec2i &pos, int mask)
int MapFogFilterFlags(CPlayer &player, const Vec2i &pos, int mask, int z)
//Wyrmgus end
{
//Wyrmgus start
// if (Map.Info.IsPointOnMap(pos)) {
if (Map.Info.IsPointOnMap(pos, z)) {
//Wyrmgus end
//Wyrmgus start
// return MapFogFilterFlags(player, Map.getIndex(pos), mask);
return MapFogFilterFlags(player, Map.getIndex(pos, z), mask, z);
//Wyrmgus end
}
return mask;
}
