add Bloodrush mechanic to engine

src/magic/model/event/MagicBloodrushActivation.java

@@ -0,0 +1,72 @@
+package magic.model.event;
+
+import magic.model.MagicCard;
+import magic.model.MagicCardDefinition;
+import magic.model.MagicGame;
+import magic.model.MagicLocationType;
+import magic.model.MagicManaCost;
+import magic.model.MagicPayedCost;
+import magic.model.MagicSource;
+import magic.model.action.MagicDrawAction;
+import magic.model.action.MagicPutItemOnStackAction;
+import magic.model.choice.MagicTargetChoice;
+import magic.model.condition.MagicCondition;
+import magic.model.stack.MagicCardOnStack;
+import magic.model.stack.MagicAbilityOnStack;
+
+public abstract class MagicBloodrushActivation extends MagicCardActivation {
+
+    final MagicManaCost cost;
+
+    public MagicBloodrushActivation(final MagicManaCost aCost) {
+        super(
+            new MagicCondition[]{
+                aCost.getCondition()
+            },
+            new MagicActivationHints(MagicTiming.Pump,true),
+            "Bloodrush"
+        );
+        cost = aCost;
+    }
+  
+    public MagicEvent[] getCostEvent(final MagicCard source) {
+        return new MagicEvent[]{
+            new MagicPayManaCostEvent(
+                source,
+                source.getController(),
+                cost
+            ),
+            new MagicDiscardCardEvent(
+                source,
+                source.getController(),
+                source
+            )
+        };
+    }
+
+    @Override
+    public MagicEvent getEvent(final MagicSource source) {
+        return new MagicEvent(
+            source,
+            new MagicEventAction() {
+                @Override
+                public void executeEvent(final MagicGame game,final MagicEvent event,final Object[] choices) {
+                    final MagicAbilityOnStack abilityOnStack = new MagicAbilityOnStack(
+                        MagicBloodrushActivation.this,
+                        getCardEvent(event.getCard(), game.getPayedCost()), 
+                        game.getPayedCost()
+                    );
+                    game.doAction(new MagicPutItemOnStackAction(abilityOnStack));
+                }
+            },
+            "Bloodrush."
+        );
+    }
+    
+    public abstract MagicEvent getCardEvent(final MagicCard source,final MagicPayedCost payedCost);
+
+    @Override
+    final MagicTargetChoice getTargetChoice(final MagicCard source) {
+        return getCardEvent(source,MagicPayedCost.NO_COST).getTargetChoice();
+    }
+}