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can build again

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This commit is contained in:
Chris Forbes
2009-11-18 19:16:06 +13:00
parent fe11e5431c
commit 25e1d9a0a1
4 changed files with 45 additions and 26 deletions
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23
OpenRa.Game/Game.cs
View File

@@ -311,6 +311,29 @@ namespace OpenRa.Game
return CanPlaceBuilding(building, xy, null, adjust);
}
public static bool IsCloseEnoughToBase(Player p, UnitInfo.BuildingInfo bi, int2 position)
{
var maxDistance = bi.Adjacent + 2; /* real-ra is weird. this is 1 GAP. */
var search = new PathSearch()
{
heuristic = loc =>
{
var b = Game.BuildingInfluence.GetBuildingAt(loc);
if (b != null && b.Owner == p) return 0;
if ((loc - position).Length > maxDistance)
return float.PositiveInfinity; /* not quite right */
return 1;
},
checkForBlocked = false,
ignoreTerrain = true,
};
foreach (var t in Footprint.Tiles(bi, position)) search.AddInitialCell(t);
return Game.PathFinder.FindPath(search).Count != 0;
}
public static void BuildUnit(Player player, string name)
{
var producerTypes = Rules.TechTree.UnitBuiltAt( Rules.UnitInfo[ name ] );

16
OpenRa.Game/PathSearch.cs
View File

@@ -15,6 +15,7 @@ namespace OpenRa.Game
public UnitMovementType umt;
Func<int2, bool> customBlock;
public bool checkForBlocked;
public bool ignoreTerrain;
public PathSearch()
{
@@ -39,22 +40,31 @@ namespace OpenRa.Game
if( cellInfo[ newHere.X, newHere.Y ].Seen )
continue;
if (ignoreTerrain)
{
if (!Game.map.IsInMap(newHere.X, newHere.Y)) continue;
}
else
{
if (passableCost[(int)umt][newHere.X, newHere.Y] == float.PositiveInfinity)
continue;
if (!Game.BuildingInfluence.CanMoveHere(newHere))
continue;
if (Game.map.IsOverlaySolid(newHere))
continue;
}
if( checkForBlocked && Game.UnitInfluence.GetUnitAt( newHere ) != null )
continue;
if (customBlock != null && customBlock(newHere))
continue;
if (Game.map.IsOverlaySolid(newHere))
continue;
var est = heuristic( newHere );
if( est == float.PositiveInfinity )
continue;
float cellCost = ( ( d.X * d.Y != 0 ) ? 1.414213563f : 1.0f ) * passableCost[ (int)umt ][ newHere.X, newHere.Y ];
float cellCost = ( ( d.X * d.Y != 0 ) ? 1.414213563f : 1.0f ) *
(ignoreTerrain ? 1 : passableCost[ (int)umt ][ newHere.X, newHere.Y ]);
float newCost = cellInfo[ p.Location.X, p.Location.Y ].MinCost + cellCost;
if( newCost >= cellInfo[ newHere.X, newHere.Y ].MinCost )

4
OpenRa.Game/PlaceBuilding.cs
View File

@@ -24,9 +24,7 @@ namespace OpenRa.Game
if( !Game.CanPlaceBuilding( Building, xy, true ) )
yield break;
var maxDistance = Building.Adjacent + 2; /* real-ra is weird. this is 1 GAP. */
if( !Footprint.Tiles( Building, xy ).Any(
t => Game.GetDistanceToBase( t, Owner ) < maxDistance ) )
if (!Game.IsCloseEnoughToBase(Owner, Building, xy))
yield break;
yield return OpenRa.Game.Order.PlaceBuilding( Owner, xy, Building.Name );

16
OpenRa.Game/UiOverlay.cs
View File

@@ -46,22 +46,10 @@ namespace OpenRa.Game
public void DrawBuildingGrid( UnitInfo.BuildingInfo bi )
{
var position = Game.controller.MousePosition.ToInt2();
var maxDistance = bi.Adjacent + 2; /* real-ra is weird. this is 1 GAP. */
//if( ShowBuildDebug )
// for( var j = 0 ; j < 128 ; j++ )
// for( var i = 0 ; i < 128 ; i++ )
// if( Game.GetDistanceToBase( new int2( i, j ), Game.LocalPlayer ) < maxDistance )
// if( Game.IsCellBuildable( new int2( i, j ), bi.WaterBound ? UnitMovementType.Float : UnitMovementType.Wheel ) )
// if( !Game.map.ContainsResource( new int2( i, j ) ) )
// spriteRenderer.DrawSprite( unitDebug, Game.CellSize * new float2( i, j ), 0 );
var tooFarFromBase = !Footprint.Tiles( bi, position ).Any(
t => Game.GetDistanceToBase( t, Game.LocalPlayer ) < maxDistance );
var isCloseEnough = Game.IsCloseEnoughToBase(Game.LocalPlayer, bi, position);
foreach( var t in Footprint.Tiles( bi, position ) )
spriteRenderer.DrawSprite( ( !tooFarFromBase && Game.IsCellBuildable( t, bi.WaterBound
spriteRenderer.DrawSprite( ( isCloseEnough && Game.IsCellBuildable( t, bi.WaterBound
? UnitMovementType.Float : UnitMovementType.Wheel ) && !Game.map.ContainsResource( t ) )
? buildOk : buildBlocked, Game.CellSize * t, 0 );