9 hours, walker spawner corpse.
When a walker spawner is destroyed it checks for damageable units beneath it and removes them. Then it spawns a copy of the spawner top that lerps to the ground and acts as new terrain. Hoping to turn this into a consistent feature of buildings and see what game play we can make out of it. Flier proximity warning has independent opacity for its left and right portions. Rewrote the flyer proximity detection. Flier proximity warning glow less ugly. Increased base turret build speed and reduced max build speed. Rebalanced phase 4 slightly as a result. Clear the field looks for an interface instead of having to get all actors of each class independently.