add engine.util.Collection and use it

4 files changed, 24 insertions, 8 deletions

diff --git a/core/src/ch/asynk/rustanddust/engine/Board.java b/core/src/ch/asynk/rustanddust/engine/Board.java
index 9441dac..2da88be 100644
--- a/core/src/ch/asynk/rustanddust/engine/Board.java
+++ b/core/src/ch/asynk/rustanddust/engine/Board.java
@@ -1,7 +1,6 @@
 package ch.asynk.rustanddust.engine;
 
 import java.util.Iterator;
-import java.util.Collection;
 
 import com.badlogic.gdx.Gdx;
 
@@ -16,6 +15,7 @@ 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.util.Collection;
 import ch.asynk.rustanddust.engine.gfx.Moveable;
 import ch.asynk.rustanddust.engine.gfx.Animation;
 import ch.asynk.rustanddust.engine.gfx.animations.AnimationSequence;
diff --git a/core/src/ch/asynk/rustanddust/engine/SearchBoard.java b/core/src/ch/asynk/rustanddust/engine/SearchBoard.java
index 583cee6..141f5cc 100644
--- a/core/src/ch/asynk/rustanddust/engine/SearchBoard.java
+++ b/core/src/ch/asynk/rustanddust/engine/SearchBoard.java
@@ -1,8 +1,6 @@
 package ch.asynk.rustanddust.engine;
 
-import java.util.List;
-import java.util.Collection;
-
+import ch.asynk.rustanddust.engine.util.Collection;
 import ch.asynk.rustanddust.engine.util.IterableArray;
 import ch.asynk.rustanddust.engine.util.IterableStack;
 import ch.asynk.rustanddust.engine.util.IterableQueue;
@@ -258,7 +256,7 @@ public class SearchBoard
             a[5] = null;
     }
 
-    public List<Node> buildLineOfSight(int x0, int y0, int x1, int y1, boolean clearVisibility)
+    public Collection<Node> buildLineOfSight(int x0, int y0, int x1, int y1, boolean clearVisibility)
     {
         lineOfSight(x0, y0, x1, y1, clearVisibility);
         return los;
@@ -347,7 +345,7 @@ public class SearchBoard
         return validateFireAngle(angleOfAttack, los);
     }
 
-    private boolean isFlankAttack(int angle, List<Node> los)
+    private boolean isFlankAttack(int angle, Collection<Node> los)
     {
         Node from = los.get(los.size() - 2);
         Node to = los.get(los.size() - 1);
@@ -364,7 +362,7 @@ public class SearchBoard
         return (o.isInSides(angle) && o2.isInSides(angle));
     }
 
-    private boolean validateFireAngle(int angle, List<Node> los)
+    private boolean validateFireAngle(int angle, Collection<Node> los)
     {
         Node from = los.get(0);
         Node p0 = los.get(1);
diff --git a/core/src/ch/asynk/rustanddust/engine/util/Collection.java b/core/src/ch/asynk/rustanddust/engine/util/Collection.java
new file mode 100644
index 0000000..c768d45
--- /dev/null
+++ b/core/src/ch/asynk/rustanddust/engine/util/Collection.java
@@ -0,0 +1,18 @@
+package ch.asynk.rustanddust.engine.util;
+
+import java.util.Iterator;
+
+public interface Collection<E> extends Iterator, Iterable<E>
+{
+    public void clear();
+
+    public int size();
+
+    public boolean isEmpty();
+
+    public E get(int idx);
+
+    public boolean add(E e);
+
+    // public boolean contains(E e);
+}
diff --git a/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java b/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java
index f310a60..baa58d9 100644
--- a/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java
+++ b/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java
@@ -3,7 +3,7 @@ package ch.asynk.rustanddust.engine.util;
 import java.util.ArrayList;
 import java.util.Iterator;
 
-public class IterableArray<E> extends ArrayList<E> implements Iterator, Iterable<E>
+public class IterableArray<E> extends ArrayList<E> implements Collection<E>
 {
     private int i;
     private int s;