ModernUO/Projects/UOContent/Migrations/Server.Engines.Spawners.Spawner.v1.json
Kamron Batman 3e8d548f38
feat: Add spawn position caching and spiral scan optimization (#2295)
### Summary

Adds spawn position caching and optimization for constrained spawners (e.g., those near houses, water, or blocked terrain).

### Key features:
- Sector-based bitmap cache (32 bytes per 16x16 sector) stores valid spawn positions
- Spiral scan progressively discovers positions from spawner center outward
- Automatic mode detects constrained spawners after 5+ non-transient failures
- Prevents mob spawning inside private houses (allows public AoS buildings)
- Deduplicates sector lookups for multi-bounds spawners (RegionSpawner)
- Cache invalidation on house placement/demolition
- Moves SpawnBounds to Spawner

### New spawner properties:
- SpawnPositionMode: Automatic (default), Enabled, Disabled, Abandoned
- MaxSpawnAttempts: Configurable attempts before optimization engages (default: 5)
2025-12-28 02:40:21 -08:00

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{
"version": 1,
"type": "Server.Engines.Spawners.Spawner",
"properties": [
{
"name": "UseSpiralScan",
"type": "bool",
"usesSaveFlag": true,
"rule": "PrimitiveTypeMigrationRule",
"ruleArguments": [
""
]
},
{
"name": "SpawnBounds",
"type": "Server.Rectangle3D",
"usesSaveFlag": true,
"rule": "PrimitiveUOTypeMigrationRule",
"ruleArguments": [
"Rect3D"
]
}
]
}