From 9ed30fa0ae79e50ab984ff8b1467f863b5abd3ae Mon Sep 17 00:00:00 2001
From: magenoxx <magenoxx@gmail>
Date: Thu, 20 Jan 2011 16:27:42 +0300
Subject: [PATCH] Last known information. Fixed Razor Hippogriff.

---
 .../sets/scarsofmirrodin/RazorHippogriff.java |  5 ++-
 Mage/src/mage/cards/CardImpl.java             |  1 +
 Mage/src/mage/game/Game.java                  |  3 ++
 Mage/src/mage/game/GameImpl.java              | 34 +++++++++++++++++++
 4 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/Mage.Sets/src/mage/sets/scarsofmirrodin/RazorHippogriff.java b/Mage.Sets/src/mage/sets/scarsofmirrodin/RazorHippogriff.java
index 947f49cc2f9..8bb2d334c17 100644
--- a/Mage.Sets/src/mage/sets/scarsofmirrodin/RazorHippogriff.java
+++ b/Mage.Sets/src/mage/sets/scarsofmirrodin/RazorHippogriff.java
@@ -108,7 +108,10 @@ public class RazorHippogriff extends CardImpl<RazorHippogriff> {
 		public boolean apply(Game game, Ability source) {
 			Player player = game.getPlayer(source.getControllerId());
 			if (player != null) {
-				MageObject card = game.getObject(source.getFirstTarget());
+				Card card = player.getGraveyard().get(source.getFirstTarget(), game);
+				if (card == null) {
+					card = game.getLastKnownInformation(source.getFirstTarget(), Zone.GRAVEYARD);
+				}
 				if (card != null) {
 					player.gainLife(card.getManaCost().convertedManaCost(), game);
 				}
diff --git a/Mage/src/mage/cards/CardImpl.java b/Mage/src/mage/cards/CardImpl.java
index 0bf8a67a4a8..28d7cb70d08 100644
--- a/Mage/src/mage/cards/CardImpl.java
+++ b/Mage/src/mage/cards/CardImpl.java
@@ -209,6 +209,7 @@ public abstract class CardImpl<T extends CardImpl<T>> extends MageObjectImpl<T>
                     default:
                         logger.warning("moveToZone, not fully implemented: from="+event.getFromZone() + ", to="+event.getToZone());
                 }
+	            game.rememberLKI(objectId, event.getFromZone(), this);
             }
 			switch (event.getToZone()) {
 				case GRAVEYARD:
diff --git a/Mage/src/mage/game/Game.java b/Mage/src/mage/game/Game.java
index 20bab07f05f..adffe549a41 100644
--- a/Mage/src/mage/game/Game.java
+++ b/Mage/src/mage/game/Game.java
@@ -106,6 +106,9 @@ public interface Game extends MageItem, Serializable {
 	public GameStates getGameStates();
 	public void loadGameStates(GameStates states);
 	public Game copy();
+	public Card getLastKnownInformation(UUID objectId, Zone zone);
+	public void rememberLKI(UUID objectId, Zone zone, Card card);
+	public void resetLKI();
 
 	//client event methods
 	public void addTableEventListener(Listener<TableEvent> listener);
diff --git a/Mage/src/mage/game/GameImpl.java b/Mage/src/mage/game/GameImpl.java
index 785fcb3ab08..5a48ea624cd 100644
--- a/Mage/src/mage/game/GameImpl.java
+++ b/Mage/src/mage/game/GameImpl.java
@@ -108,6 +108,7 @@ public abstract class GameImpl<T extends GameImpl<T>> implements Game, Serializa
 	protected transient PlayerQueryEventSource playerQueryEventSource = new PlayerQueryEventSource();
 
 	protected Map<UUID, Card> gameCards = new HashMap<UUID, Card>();
+	protected Map<UUID, Card> lki = new HashMap<UUID, Card>();
 	protected GameState state;
 	protected UUID startingPlayerId;
 	protected UUID winnerId;
@@ -486,6 +487,7 @@ public abstract class GameImpl<T extends GameImpl<T>> implements Game, Serializa
 					player.priority(this);
 					if (isGameOver()) return;
 					applyEffects();
+					resetLKI();
 				}
 				if (isGameOver()) return;
 				if (allPassed()) {
@@ -905,4 +907,36 @@ public abstract class GameImpl<T extends GameImpl<T>> implements Game, Serializa
 		gameStates = new GameStates();
 	}
 
+	/**
+	 * Gets last known information about object in the zone.
+	 * At the moment doesn't take into account zone (it is expected that it doesn't really matter, if not, then Map<UUID, Map<Zone, Card>> should be used instead).
+	 *
+	 * Can return null.
+	 *
+	 * @param objectId
+	 * @param zone
+	 * @return
+	 */
+	public Card getLastKnownInformation(UUID objectId, Zone zone) {
+		return lki.get(objectId);
+	}
+
+	/**
+	 * Remembers object state to be used as Last Known Information.
+	 *
+	 * @param objectId
+	 * @param zone
+	 * @param card
+	 */
+	public void rememberLKI(UUID objectId, Zone zone, Card card) {
+		Card copy = card.copy();
+		lki.put(objectId, copy);
+	}
+
+	/**
+	 * Reset objects stored for Last Known Information.
+	 */
+	public void resetLKI() {
+		lki.clear();
+	}
 }