add game.Objective

1 files changed, 48 insertions, 0 deletions

diff --git a/core/src/ch/asynk/tankontank/game/Objective.java b/core/src/ch/asynk/tankontank/game/Objective.java
new file mode 100644
index 0000000..f7a6c3b
--- /dev/null
+++ b/core/src/ch/asynk/tankontank/game/Objective.java
@@ -0,0 +1,48 @@
+package ch.asynk.tankontank.game;
+
+public class Objective
+{
+    protected Army curArmy;
+    protected Army prevArmy;
+    private boolean persistent;
+
+    public Objective(Army army, boolean persistent)
+    {
+        this.curArmy = army;
+        this.prevArmy = army;
+        this.persistent = persistent;
+    }
+
+    public boolean is(Army army)
+    {
+        return (curArmy == army);
+    }
+
+    public Army army()
+    {
+        return curArmy;
+    }
+
+    public boolean set(Army army)
+    {
+        if (army == curArmy)
+            return false;
+        prevArmy = curArmy;
+        curArmy = army;
+        return true;
+    }
+
+    public boolean unset()
+    {
+        if (persistent)
+            return false;
+        revert();
+        return true;
+    }
+
+    public Army revert()
+    {
+        curArmy = prevArmy;
+        return curArmy;
+    }
+}