TowerInstance.StampFootprint now writes walkability via SetWalkableBatch instead of per-tile SetWalkable, so despawning (selling) a 2x2 tower fires one OnWalkabilityChanged / enemy re-path instead of four — matching placement and removing the frame hitch on sell. PlaySellEffectRpc now logs a one-time warning when no SellEffectSpawner is in the scene, since a missing spawner silently suppressed the coin VFX and sound.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Owner-validated sell RPC refunds SellRefundPercent of invested gold (Wall refunds 100% while un-upgraded), despawns the tower, and broadcasts a coin-burst VFX + rustle SFX. Refunds do not count as per-wave income. Investment/upgrade tracking added as the seam for the future upgrade system.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This may need to be changed later if we have any towers that have visuals that go underneath the ground. Right now that won't work, but we also don't have anything like that.
