Objective[Set]: move from game to engine package

1 files changed, 49 insertions, 0 deletions

diff --git a/core/src/ch/asynk/tankontank/engine/Objective.java b/core/src/ch/asynk/tankontank/engine/Objective.java
new file mode 100644
index 0000000..1686122
--- /dev/null
+++ b/core/src/ch/asynk/tankontank/engine/Objective.java
@@ -0,0 +1,49 @@
+package ch.asynk.tankontank.engine;
+
+public class Objective
+{
+    protected Faction curFaction;
+    protected Faction prevFaction;
+    private boolean persistent;
+
+    public Objective(Faction faction, boolean persistent)
+    {
+        this.curFaction = faction;
+        this.prevFaction = faction;
+        this.persistent = persistent;
+    }
+
+    public boolean is(Faction faction)
+    {
+        return (curFaction == faction);
+    }
+
+    public Faction faction()
+    {
+        return curFaction;
+    }
+
+    public boolean set(Faction faction)
+    {
+        if (faction == curFaction)
+            return false;
+
+        prevFaction = curFaction;
+        curFaction = faction;
+        return true;
+    }
+
+    public boolean unset()
+    {
+        if (persistent)
+            return false;
+        revert();
+        return true;
+    }
+
+    public Faction revert()
+    {
+        curFaction = prevFaction;
+        return curFaction;
+    }
+}