Someone

GetPlayerKeys(i, Keys[0], Keys[1], Keys[2]);
           	switch(Keys[0])
    		{
    			case KEY_DOWN:
					{
						new Float:X;
						new Float:Y;
						new Float:Z;
						GetObjectPos(ObjectID,X,Y,Z);
						MoveObject(ObjectID,X,Y,Z-10,10);
					}
				case KEY_UP:
					{
						new Float:X;
						new Float:Y;
						new Float:Z;
						GetObjectPos(ObjectID,X,Y,Z);
						MoveObject(ObjectID,X,Y,Z+10,10);
					}
					case KEY_LEFT:
					{
						new Float:X;
						new Float:Y;
						new Float:Z;
						GetObjectPos(ObjectID,X,Y,Z);
						MoveObject(ObjectID,X+10,Y,Z,10);
					}
				case KEY_RIGHT:
					{
						new Float:X;
						new Float:Y;
						new Float:Z;
						GetObjectPos(ObjectID,X,Y,Z);
						MoveObject(ObjectID,X-10,Y,Z,10);
					}