refactored grabbing

app/Game/Server/GameObjects/Item.js

@@ -2,8 +2,58 @@ define([
 	"Game/Core/GameObjects/Item"
 ],
  
-function(Parent) {
-
-    return Parent;
+function (Parent) {
  
-});
+    function Item(physicsEngine, uid, options) {
+    	Parent.call(this, physicsEngine, uid, options);
+    	this.heldByPlayers = [];
+        this.lastMoved = null;
+    }
+
+    Item.prototype = Object.create(Parent.prototype);
+ 
+
+    Item.prototype.setLastMovedBy = function(player) {
+
+        if(player) {
+            this.lastMoved = {
+                player: player,
+                timestamp: new Date()
+            }
+        } else {
+            this.lastMoved = null;
+        }
+    };
+
+    Item.prototype.isGrabbingAllowed = function(player) {
+        return this.heldByPlayers.length == 0;
+    };
+
+    Item.prototype.beingGrabbed = function(player) {
+    	Parent.prototype.beingGrabbed.call(this, player);
+
+        if(this.isGrabbingAllowed(player)) {
+            this.heldByPlayers.push(player);
+            this.setLastMovedBy(null);
+        }
+    };
+
+    Item.prototype.isReleasingAllowed = function(player) {
+        return true;
+    };
+
+    Item.prototype.beingReleased = function(player) {
+        Parent.prototype.beingReleased.call(this, player);
+
+        if(this.isReleasingAllowed(player)) {
+            var pos = this.heldByPlayers.indexOf(player);
+            if(pos >= 0) {
+                this.heldByPlayers.splice(pos, 1);
+                this.setLastMovedBy(player);
+            }            
+        }
+    };
+
+    return Item;
+ 
+});

app/Game/Server/Player.js

@@ -23,22 +23,41 @@ function (Parent, NotificationCenter) {
         }
 
         if(item) {
-
 	        this.handAction(x, y, isHolding, item);
-
-			var message = {
-	            handActionResponse: {
-	                playerId: this.id,
-	                isHolding: isHolding,
-	                itemUid: item.uid,
-	                x: x, 
-	                y: y
-	            }
-	        };
-	        
-	        NotificationCenter.trigger("sendControlCommandToAllUsers", "gameCommand", message);
         }
     }
+
+    Player.prototype.handAction = function(x, y, isHolding, item) {
+
+        var options = {
+            playerId: this.id,
+            itemUid: item.uid            
+        }
+
+        var message = {
+            handActionResponse: options
+        }
+        
+        if (isHolding) {
+            // throw
+            if(item.isReleasingAllowed()) {
+                this.throw(x, y, item);
+
+                options.action = "throw";
+                options.x = x;
+                options.y = y;                
+                NotificationCenter.trigger("sendControlCommandToAllUsers", "gameCommand", message);
+            }
+        } else {
+            // grab
+            if(item.isGrabbingAllowed()) {
+                this.grab(item); 
+
+                options.action = "grab";
+                NotificationCenter.trigger("sendControlCommandToAllUsers", "gameCommand", message);              
+            }
+        }
+    };
  
     return Player;