The Houston Rockets have acquired high-scoring forward Purvis Short from the Golden State Warriors for reserve center Dave Feitl, a first-round draft choice and cash. The Warriors will receive Houston's No. 1 pick in 1989, 1990 or 1991, depending upon whether Houston is in the draft lottery in any of those seasons. Short has averaged 19.4 points per game over his nine-year career with the Warriors. He averaged 28 in 1984-85, then 25.5 and, last year when hit with injuries, 18.3 points . . .
Seattle SuperSonics power forward Maurice Lucas has accepted an offer sheet that should return him to Portland, where he was the leading scorer on the 1977 NBA championship team. "We are confident we will be able to make a deal with Seattle to acquire the rights to Maurice Lucas," said Portland President Harry Glickman . . .
Forward Adrian Dantley, former DeMatha and Notre Dame player now 13th in all-time NBA scoring with 19,678 points in 11 seasons, signed a multiyear extension with the Detroit Pistons. Length and terms of the contract were not released. Dantley, 31, would have become a free agent at the end of the 1987-88 season. He led the '86-87 Pistons with 21.5 points per game . . .
Former Bullets Mike O'Koren and Leon Wood were cut by the New Jersey Nets, Wood after scoring 7.3 points a game for the '86-87 Nets and O'Koren after he decided not to report following his reacquisition this week from the Boston Celtics.