Package mindustry.ai

Class Pathfinder.Flowfield

java.lang.Object
mindustry.ai.Pathfinder.Flowfield
Direct Known Subclasses:
Pathfinder.EnemyCoreField, Pathfinder.PositionTarget
Enclosing class:
Pathfinder
public abstract static class Pathfinder.Flowfield extends Object
Data for a flow field to some set of destinations. Concrete subclasses must specify a way to fetch costs and destinations.

  • Field Details

    • refreshRate

      protected int refreshRate
      Refresh rate in milliseconds. <= 0 to disable.

    • team

      protected Team team
      Team this path is for. Set before using.

    • cost

      protected Pathfinder.PathCost cost
      Function for calculating path cost. Set before using.

    • hasComplete

      protected volatile boolean hasComplete
      Whether there are valid weights in the complete array.

    • dirty

      protected boolean dirty
      If true, this flow field needs updating. This flag is only set to false once the flow field finishes and the weights are copied over.

    • weights

      public int[] weights
      costs of getting to a specific tile

    • searches

      public short[] searches
      search IDs of each position - the highest, most recent search is prioritized and overwritten

    • completeWeights

      public int[] completeWeights
      the last "complete" weights of this tilemap.

    • resolution

      public final int resolution
      Scaling factor. For example, resolution = 2 means tiles are twice as large.

    • width

      public final int width

    • height

      public final int height

  • Constructor Details

    • Flowfield

      public Flowfield()

    • Flowfield

      public Flowfield(int resolution)

  • Method Details

    • getCost

      public int getCost(int[] tiles, int pos)

    • hasTargets

      public boolean hasTargets()

    • getNextTile

      @Nullable public Tile getNextTile(Tile from, boolean diagonals)
      Returns:
      the next tile to travel to for this flowfield. Main thread only.

    • getNextTile

      @Nullable public Tile getNextTile(Tile from)
      Returns:
      the next tile to travel to for this flowfield. Main thread only.

    • hasCompleteWeights

      public boolean hasCompleteWeights()

    • updateTargetPositions

      public void updateTargetPositions()

    • needsRefresh

      public boolean needsRefresh()
      Returns:
      whether this flow field should be refreshed after the current block update

    • passable

      protected boolean passable(int pos)

    • getPositions

      protected abstract void getPositions(arc.struct.IntSeq out)
      Gets targets to pathfind towards. This must run on the main thread.