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Refactor movement cost method to avoid repeated terrain information lookups.

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As the world tileset is fixed, the pathfinder can look up the terrain information for that tileset on creation. This is implemented by the WorldMovementInfo struct. When calculating node costs, this allows the pathfinder to avoid having to repeat this expensive dictionary lookup on every node.
This commit is contained in:
RoosterDragon
2015-08-19 23:50:36 +01:00
parent 4eacb6e5c9
commit ac1658c9ce
2 changed files with 32 additions and 17 deletions
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14
OpenRA.Mods.Common/Pathfinder/PathGraph.cs
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@@ -71,6 +71,7 @@ namespace OpenRA.Mods.Common.Pathfinder
readonly CellConditions checkConditions;
readonly MobileInfo mobileInfo;
readonly MobileInfo.WorldMovementInfo worldMovementInfo;
CellLayer<CellInfo> cellInfo;
public PathGraph(CellLayer<CellInfo> cellInfo, MobileInfo mobileInfo, Actor actor, World world, bool checkForBlocked)
@@ -78,6 +79,7 @@ namespace OpenRA.Mods.Common.Pathfinder
this.cellInfo = cellInfo;
World = world;
this.mobileInfo = mobileInfo;
worldMovementInfo = mobileInfo.GetWorldMovementInfo(world);
Actor = actor;
LaneBias = 1;
checkConditions = checkForBlocked ? CellConditions.TransientActors : CellConditions.None;
@@ -123,17 +125,9 @@ namespace OpenRA.Mods.Common.Pathfinder
int GetCostToNode(CPos destNode, CVec direction)
{
int movementCost;
if (mobileInfo.CanEnterCell(
World,
Actor,
destNode,
out movementCost,
IgnoredActor,
checkConditions) && !(CustomBlock != null && CustomBlock(destNode)))
{
var movementCost = mobileInfo.MovementCostToEnterCell(worldMovementInfo, Actor, destNode, IgnoredActor, checkConditions);
if (movementCost != int.MaxValue && !(CustomBlock != null && CustomBlock(destNode)))
return CalculateCellCost(destNode, direction, movementCost);
}
return Constants.InvalidNode;
}