MTS/IV Collision Entity Damage

By
Mozork

An add-on for Immersive Vehicles - MTS that makes collisions truly dangerous for players and mobs, both inside and outside a vehicle.

MTS/IV Collision Entity Damage

An add-on for Immersive Vehicles - MTS that makes collisions truly dangerous for players and mobs, both inside and outside a vehicle.

Why this mod ?

Immersive Vehicles (Minecraft Transport Simulator) already includes a damage system for entities hit from the outside by a moving vehicle, with fixed values defined on a case-by-case basis in each vehicle's JSON.

This mod builds on that system: it makes damage proportional to the actual impact speed, adds knockback, and introduces a brand new damage system for players seated inside a vehicle that crashes into another vehicle.

What the mod does

Three independent systems, each with its own settings:

Player inside a vehicle: when the vehicle you're riding actually collides with another vehicle (stationary or moving), you take damage proportional to the closing speed between the two vehicles.
Player outside: a moving vehicle that hits you while you're not a passenger of any vehicle deals damage proportional to the vehicle's speed, plus a knockback (radial push away from the vehicle).
Non-player entity outside: same principle as above, but for mobs, with its own independent settings.
This mod only deals with players or other entities. It does not affect vehicles. — for that, see the companion mod MTS/IV Collision Vehicle Damage.

In all three cases, damage is calculated from the actual max health of the entity hit: a tough mob takes it better than a fragile one for the same impact. A cooldown system, per vehicle/entity pair (or vehicle/vehicle pair for the "inside" case), prevents damage from stacking in a loop while contact persists.

What's configurable

Everything is adjustable in config/mtscollisionentitydamage-common.toml:

Setting	Description	Default
`insideCooldownTicks`	Minimum ticks between two damage triggers for the same pair of vehicles (player inside).	`40`
`insideMinSpeedMs`	Minimum closing speed (m/s) below which no damage is dealt to the player inside.	`10`
`insideDamagePercent`	Percentage of the player's max health lost per m/s of closing speed (inside).	`2`
`outsidePlayerCooldownTicks`	Minimum ticks between two damage triggers for the same vehicle/player pair (outside).	`40`
`outsidePlayerMinSpeedMs`	Minimum vehicle speed (m/s) below which no damage is dealt to the player outside.	`10`
`outsidePlayerDamagePercent`	Percentage of the player's max health lost per m/s of vehicle speed (outside).	`4`
`outsideEntityCooldownTicks`	Minimum ticks between two damage triggers for the same vehicle/non-player entity pair.	`40`
`outsideEntityMinSpeedMs`	Minimum vehicle speed (m/s) below which no damage is dealt to the entity outside.	`10`
`outsideEntityDamagePercent`	Percentage of the entity's max health lost per m/s of vehicle speed (outside).	`4`
`knockbackDistance`	Approximate distance (in blocks) an outside entity is pushed when hit. Set to 0 to disable knockback.	`2.0`

Compatibility

Minecraft 1.20.1, Forge
Requires Immersive Vehicles - MTS
No additional dependencies

Notes

Independent add-on: it does not modify any Immersive Vehicles files, it runs alongside it.
Compatible with all MTS-based vehicle packs.
You can enhance this mod by using MTS Collision Vehicle Damage