61 lines
1.5 KiB
C#
61 lines
1.5 KiB
C#
using OpenRa.Game.GameRules;
|
|
using OpenRa.Game.Traits;
|
|
|
|
namespace OpenRa.Game
|
|
{
|
|
class BuildingInfluenceMap
|
|
{
|
|
bool[,] blocked = new bool[128, 128];
|
|
Actor[,] influence = new Actor[128, 128];
|
|
|
|
public BuildingInfluenceMap()
|
|
{
|
|
Game.world.ActorAdded +=
|
|
a => { if (a.traits.Contains<Building>())
|
|
ChangeInfluence(a, a.traits.Get<Building>(), true); };
|
|
Game.world.ActorRemoved +=
|
|
a => { if (a.traits.Contains<Building>())
|
|
ChangeInfluence(a, a.traits.Get<Building>(), false); };
|
|
}
|
|
|
|
void ChangeInfluence(Actor a, Building building, bool isAdd)
|
|
{
|
|
foreach (var u in Footprint.UnpathableTiles(building.unitInfo, a.Location))
|
|
if (IsValid(u))
|
|
blocked[u.X, u.Y] = isAdd;
|
|
|
|
foreach (var u in Footprint.Tiles(building.unitInfo, a.Location, false))
|
|
if (IsValid(u))
|
|
influence[u.X, u.Y] = isAdd ? a : null;
|
|
}
|
|
|
|
bool IsValid(int2 t)
|
|
{
|
|
return !(t.X < 0 || t.Y < 0 || t.X >= 128 || t.Y >= 128);
|
|
}
|
|
|
|
public Actor GetBuildingAt(int2 cell)
|
|
{
|
|
if (!IsValid(cell)) return null;
|
|
return influence[cell.X, cell.Y];
|
|
}
|
|
|
|
public Actor GetNearestBuilding(int2 cell)
|
|
{
|
|
if (!IsValid(cell)) return null;
|
|
return influence[cell.X, cell.Y];
|
|
}
|
|
|
|
public int GetDistanceToBuilding(int2 cell)
|
|
{
|
|
if (!IsValid(cell)) return int.MaxValue;
|
|
return influence[cell.X, cell.Y] == null ? int.MaxValue : 0;
|
|
}
|
|
|
|
public bool CanMoveHere(int2 cell)
|
|
{
|
|
return IsValid(cell) && !blocked[cell.X, cell.Y];
|
|
}
|
|
}
|
|
}
|