5 files changed, 33 insertions, 37 deletions
diff --git a/core/src/ch/asynk/rustanddust/engine/Board.java b/core/src/ch/asynk/rustanddust/engine/Board.java
index 119e850..9441dac 100644
--- a/core/src/ch/asynk/rustanddust/engine/Board.java
+++ b/core/src/ch/asynk/rustanddust/engine/Board.java
@@ -15,6 +15,7 @@ import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 import com.badlogic.gdx.math.Matrix4;
 
 import ch.asynk.rustanddust.engine.util.IterableArray;
+import ch.asynk.rustanddust.engine.util.IterableSet;
 import ch.asynk.rustanddust.engine.gfx.Moveable;
 import ch.asynk.rustanddust.engine.gfx.Animation;
 import ch.asynk.rustanddust.engine.gfx.animations.AnimationSequence;
@@ -61,7 +62,7 @@ public abstract class Board implements Disposable, Animation
     private int animationCount = 0;
     private final IterableArray<Animation> animations = new IterableArray<Animation>(10);
     private final IterableArray<Animation> nextAnimations = new IterableArray<Animation>(10);
-    private final IterableArray<Tile> tilesToDraw = new IterableArray<Tile>(20);
+    private final IterableSet<Tile> tilesToDraw = new IterableSet<Tile>(20);
 
     protected SelectedTile selectedTile;
 
@@ -404,7 +405,7 @@ public abstract class Board implements Disposable, Animation
             if (tile.isObjective()) {
                 tile.enableOverlay(o, false);
                 tile.enableOverlay(moveable.getFaction().overlay(), true);
-                tilesToDraw.addUnique(tile);
+                tilesToDraw.add(tile);
             }
         }
     }
@@ -415,7 +416,7 @@ public abstract class Board implements Disposable, Animation
             if (tile.isObjective()) {
                 tile.enableOverlay(moveable.getFaction().overlay(), false);
                 tile.enableOverlay(tile.belongsTo().overlay(), true);
-                tilesToDraw.addUnique(tile);
+                tilesToDraw.add(tile);
             }
         }
     }
@@ -430,7 +431,7 @@ public abstract class Board implements Disposable, Animation
     public void enableOverlayOn(Tile tile, int i, boolean enable)
     {
         if (tile.enableOverlay(i, enable))
-            tilesToDraw.addUnique(tile);
+            tilesToDraw.add(tile);
         else
             tilesToDraw.remove(tile);
     }
@@ -438,7 +439,7 @@ public abstract class Board implements Disposable, Animation
     public void enableOverlayOn(Tile tile, int i, Orientation o, boolean enable)
     {
         if (tile.enableOverlay(i, enable, o.r()))
-            tilesToDraw.addUnique(tile);
+            tilesToDraw.add(tile);
         else
             tilesToDraw.remove(tile);
     }
@@ -446,7 +447,7 @@ public abstract class Board implements Disposable, Animation
     private int pushPawnOnto(Pawn pawn, Tile tile)
     {
         if (!tile.isOffMap())
-            tilesToDraw.addUnique(tile);
+            tilesToDraw.add(tile);
         return tile.push(pawn);
     }
 
diff --git a/core/src/ch/asynk/rustanddust/engine/PathBuilder.java b/core/src/ch/asynk/rustanddust/engine/PathBuilder.java
index d5c79d9..ecc7634 100644
--- a/core/src/ch/asynk/rustanddust/engine/PathBuilder.java
+++ b/core/src/ch/asynk/rustanddust/engine/PathBuilder.java
@@ -5,6 +5,8 @@ import java.util.List;
 import com.badlogic.gdx.utils.Disposable;
 
 import ch.asynk.rustanddust.engine.util.IterableArray;
+import ch.asynk.rustanddust.engine.util.IterableStack;
+import ch.asynk.rustanddust.engine.util.IterableSet;
 
 public class PathBuilder implements Disposable
 {
@@ -15,17 +17,17 @@ public class PathBuilder implements Disposable
     public Tile to;
     public int distance;
     public Orientation orientation;
-    private List<Tile> stack;
+    private IterableStack<Tile> stack;
     private List<Tile> ctrlTiles;
     private List<Path> paths;
     private List<Path> filteredPaths;
-    private IterableArray<Tile> tiles;
+    private IterableSet<Tile> tiles;
 
     public PathBuilder(Board board, int tSize, int stSize, int ftSize, int psSize)
     {
         this.board = board;
-        this.tiles = new IterableArray<Tile>(tSize);
-        this.stack = new IterableArray<Tile>(stSize);
+        this.tiles = new IterableSet<Tile>(tSize);
+        this.stack = new IterableStack<Tile>(stSize);
         this.ctrlTiles = new IterableArray<Tile>(ftSize);
         this.paths = new IterableArray<Path>(psSize);
         this.filteredPaths = new IterableArray<Path>(psSize);
@@ -194,7 +196,7 @@ public class PathBuilder implements Disposable
         clearPaths();
         paths.add(path);
         for (Tile tile : path.tiles)
-            tiles.addUnique(tile);
+            tiles.add(tile);
     }
 
     private void findAllPaths(Tile from, int mvtLeft, int fitness, boolean roadMarch)
@@ -217,7 +219,7 @@ public class PathBuilder implements Disposable
                 Path path = Path.get(stack.size() + 1);
                 for (Tile t: stack) {
                     path.tiles.add(t);
-                    tiles.addUnique(t);
+                    tiles.add(t);
                 }
                 path.roadMarch = r;
                 path.fitness = f;
@@ -226,9 +228,9 @@ public class PathBuilder implements Disposable
             }
 
             if (l >= board.distance(next, to)) {
-                stack.add(next);
+                stack.push(next);
                 findAllPaths(next, m, f, r);
-                stack.remove(stack.size() - 1);
+                stack.pop();
             }
         }
     }
@@ -259,11 +261,11 @@ public class PathBuilder implements Disposable
                     filteredPaths.clear();
                     filteredPaths.add(path);
                     tiles.clear();
-                    for (Tile tile : path.tiles) tiles.addUnique(tile);
+                    for (Tile tile : path.tiles) tiles.add(tile);
                     break;
                 } else {
                     filteredPaths.add(path);
-                    for (Tile tile : path.tiles) tiles.addUnique(tile);
+                    for (Tile tile : path.tiles) tiles.add(tile);
                 }
             }
         }
diff --git a/core/src/ch/asynk/rustanddust/engine/SearchBoard.java b/core/src/ch/asynk/rustanddust/engine/SearchBoard.java
index 7fd2ef6..583cee6 100644
--- a/core/src/ch/asynk/rustanddust/engine/SearchBoard.java
+++ b/core/src/ch/asynk/rustanddust/engine/SearchBoard.java
@@ -4,6 +4,8 @@ import java.util.List;
 import java.util.Collection;
 
 import ch.asynk.rustanddust.engine.util.IterableArray;
+import ch.asynk.rustanddust.engine.util.IterableStack;
+import ch.asynk.rustanddust.engine.util.IterableQueue;
 
 public class SearchBoard
 {
@@ -35,9 +37,9 @@ public class SearchBoard
     private int searchCount;
     private Node nodes[];
 
-    private IterableArray<Node> stack;
-    private IterableArray<Node> queue;
-    private IterableArray<Node> roadMarch;
+    private IterableStack<Node> stack;
+    private IterableQueue<Node> queue;
+    private IterableStack<Node> roadMarch;
     private IterableArray<Node> los;
     private boolean losBlocked;
 
@@ -55,9 +57,9 @@ public class SearchBoard
                 nodes[i + (j * cols)] = new Node((i + dx), j);
         }
 
-        this.queue = new IterableArray<Node>(30);
-        this.stack = new IterableArray<Node>(20);
-        this.roadMarch = new IterableArray<Node>(5);
+        this.queue = new IterableQueue<Node>(30);
+        this.stack = new IterableStack<Node>(20);
+        this.roadMarch = new IterableStack<Node>(5);
         this.los = new IterableArray<Node>(10);
     }
 
diff --git a/core/src/ch/asynk/rustanddust/engine/Tile.java b/core/src/ch/asynk/rustanddust/engine/Tile.java
index 20d8fd7..0fc3b10 100644
--- a/core/src/ch/asynk/rustanddust/engine/Tile.java
+++ b/core/src/ch/asynk/rustanddust/engine/Tile.java
@@ -8,7 +8,7 @@ import com.badlogic.gdx.graphics.g2d.Batch;
 import com.badlogic.gdx.graphics.g2d.TextureAtlas;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 
-import ch.asynk.rustanddust.engine.util.IterableArray;
+import ch.asynk.rustanddust.engine.util.IterableStack;
 import ch.asynk.rustanddust.engine.gfx.Drawable;
 import ch.asynk.rustanddust.engine.gfx.StackedImages;
 
@@ -31,7 +31,7 @@ public abstract class Tile implements Drawable, Disposable, Iterable<Pawn>
     protected float x;
     protected float y;
     private StackedImages overlays;
-    private IterableArray<Pawn> stack;
+    private IterableStack<Pawn> stack;
 
     protected Faction curFaction;
     protected Faction prevFaction;
@@ -51,7 +51,7 @@ public abstract class Tile implements Drawable, Disposable, Iterable<Pawn>
     {
         this.col = col;
         this.row = row;
-        this.stack = new IterableArray<Pawn>(capacity);
+        this.stack = new IterableStack<Pawn>(capacity);
         this.curFaction = defaultFaction;
         this.prevFaction = defaultFaction;
         this.objective = Objective.NONE;
@@ -117,8 +117,7 @@ public abstract class Tile implements Drawable, Disposable, Iterable<Pawn>
 
     protected Pawn getTopPawn()
     {
-        if (isEmpty()) return null;
-        return stack.get(stack.size() - 1);
+        return stack.getTop();
     }
 
     public boolean hasUnits()
diff --git a/core/src/ch/asynk/rustanddust/engine/TileSet.java b/core/src/ch/asynk/rustanddust/engine/TileSet.java
index 233232e..2d8d750 100644
--- a/core/src/ch/asynk/rustanddust/engine/TileSet.java
+++ b/core/src/ch/asynk/rustanddust/engine/TileSet.java
@@ -1,8 +1,8 @@
 package ch.asynk.rustanddust.engine;
 
-import ch.asynk.rustanddust.engine.util.IterableArray;
+import ch.asynk.rustanddust.engine.util.IterableSet;
 
-public class TileSet extends IterableArray<Tile>
+public class TileSet extends IterableSet<Tile>
 {
     private final Board board;
 
@@ -17,12 +17,4 @@ public class TileSet extends IterableArray<Tile>
         for (Tile tile : this)
             board.enableOverlayOn(tile, i, enable);
     }
-
-    @Override
-    public boolean add(Tile tile)
-    {
-        if (contains(tile)) return false;
-        super.add(tile);
-        return true;
-    }
 }