ThunderWispMod

This mod is intended for players who want to slightly reduce the effectiveness of building a completely safe SkyBase from the very beginning of the game.

• Players who remain at high altitude for long periods may occasionally encounter weak Wisp spawns.
• Wisp spawns can be prevented within a certain area by placing Anti-Wisp Blocks.

If you've installed difficulty-increasing mob mods and felt that simply building a SkyBase made you completely safe, this mod may be for you.

Mobs

Wisps are very weak hostile mobs when fought directly.

By default, different types of Wisps begin appearing depending on altitude. These thresholds can be changed in the common config.

All Wisps possess a weak lightning attack and a transformation ability that may trigger when damaged.

Items

Several items are available to suppress Wisp spawns.

Please use JEI or similar recipe viewers to check crafting recipes.

Anti-Wisp Items

While a player is inside the protection area of an Anti-Wisp Block, additional Wisp spawns will not occur.

Materials

Configuration

ThunderWispMod exposes player-based Wisp spawn settings through a Forge COMMON config.

The generated file is normally placed in the shared Minecraft/Forge config folder as thunderwispmod-common.toml. This makes the settings suitable for modpack distribution because pack owners can include the file once and have it apply across worlds.

For modpacks, include the file as config/thunderwispmod-common.toml in the distributed pack or override folder. On dedicated servers, place the file in the server's config folder. This config is not a per-world serverconfig file.

Because this is a Forge COMMON config, it is not automatically synchronized from the server to clients. Player-based Wisp spawning is evaluated on the server side, so multiplayer balance is controlled by the server's copy of this file.

Default values are tuned to make natural high-altitude Wisp encounters more noticeable than the original hard-coded behavior, while still keeping them occasional.

[spawn]
enabled = true
disableInPeaceful = true
ignoreSpectatorPlayers = true
ignoreCreativePlayers = true
ignoreCreativePlayersForForcedEvents = false
naturalCheckIntervalTicks = 1200
clearChance = 0.03
rainOrSnowChance = 0.08
thunderChance = 0.15
minSpawnAltitudeY = 96.0
highSpawnAltitudeY = 128.0
extremeSpawnAltitudeY = 160.0
minGroupSize = 4
maxGroupSize = 8
minSpawnDistance = 16.0
maxSpawnDistance = 32.0
enableLightningForcedSpawning = true
enableSleepFinishedForcedSpawning = true
forcedEventMaxSuccessfulGroups = 3
forcedEventCooldownTicks = 600

Natural spawn probability

Natural Wisp spawn checks run once every naturalCheckIntervalTicks for each eligible player. With the default 1200 ticks, checks run about once per minute.

A successful check may still be suppressed by Anti-Wisp protection.

Lightning command testing

Forced lightning spawns are still player-based. The lightning position is only the event trigger; Wisps spawn around eligible players in the same dimension.

For quick testing, use a non-Peaceful difficulty and stand at Y >= 96. With the default config, Creative players are allowed only for forced event spawns, so /summon minecraft:lightning_bolt ~ ~ ~ can be used as a test trigger while natural Creative-player anchoring remains disabled.

Config keys

If spawn.minGroupSize is set higher than spawn.maxGroupSize, the mod automatically treats the smaller value as the minimum and the larger value as the maximum. The same normalization is applied to spawn.minSpawnDistance and spawn.maxSpawnDistance.