Kill biters for resources - rebalanced and extended

Biters for resources

All resources are replaced by enemies that drop those resources when killed.

The base game biters are disabled, the "Enemy bases" slider in the map generation screen does nothing. Enemy expansion is disabled. The evolution settings still have an effect, as does the peaceful mode setting.

The amount of biter nests spawned per resource can be adjusted with the usual resource sliders in the map generation screen.

Developed for an otherwise vanilla game. Aims to be balanced for large multiplayer games with a focus on farming biters/spitters for resources without killing spawners.

Loot dropped by enemies (default settings, scaling = 1):

| Enemy Type | Base Drop | With Elite (5x) | |------------|-----------|-----------------| | Biters & Spitters | 2-5 items | 10-25 items | | Worms (15x multiplier) | 30-75 items | 150-375 items | | Spawners (50x multiplier) | 50-150 items | N/A |

All values are configurable via mod settings. Loot can be further increased by:

• Size scaling multipliers (small/medium/big/behemoth)
• Per-resource multipliers
• Evolution bonus (runtime)
• Distance from spawn bonus (runtime, optional)

Crude oil is dropped as barrels that can be emptied with the ratio 10 barrels -> 50 crude oil. Emptying these barrels does not result in empty barrels. Obtaining uranium ore does not require sulfuric acid, it is simply dropped by the enemies.

Forked from Bilka's Biters for Resources

The following changes were added in this fork:

Factorio 2.0 Compatibility

• Updated for Factorio 2.0 API (noise expressions, autoplace system, runtime API changes)
• Works with Space Age expansion

New Features

• Elite Enemies: Rare variants (5% spawn chance by default) with 3x HP/damage and 5x loot drops, visually distinct with brighter tint
• Evolution Bonus: Higher evolution = more loot drops (configurable multiplier)
• Distance Bonus: Optional loot bonus based on distance from spawn (disabled by default)
• Bonus Drop System: 5% chance for enemies to drop extra items (coins, science packs, plates, circuits, etc.)
• Kill Statistics: Track your kills and resources gained with /bfr-stats command (reset with /bfr-reset-stats)
• Auto-Detect Modded Resources: Automatically creates resource-dropping enemies for other mods' resources
• In-Game Tips: Added tips and tricks entries explaining mod features

New Settings

• Per-resource loot multipliers (iron, copper, stone, coal, uranium, crude oil)
• Entity type multipliers (worms, spawners)
• Elite enemy toggle and spawn chance
• Evolution bonus multiplier
• Distance bonus (enable/disable, percentage, distance unit)
• Bonus drop chance

Code Improvements

• Centralized configuration in config.lua
• Refactored graphics generation with loop-based approach
• Better code organization and documentation

Warning: Most of the changes were done using AI. It works and is pretty balanced, but if you have an aversion to that kind of thing stay away.