idk, I barely tested this.

Author: zenfyrdev

CHANGELOG.md

@@ -5,4 +5,5 @@
 * Fixed a bug that allowed parent and child minecars to be double-linked.
 * Fixed `getOtherEntities` in `adjustMovementForCollisions` being called for every entity instead of just minecarts.
 * Every method in the `LinkableMinecart` interface is now `default`.
-* `linkart$getLinkItem` should no longer return `null`.
+* `linkart$getLinkItem` should no longer return `null`.
+* Added an experimental option to change distance between carts. `distance` in the config.

src/main/java/com/github/vini2003/linkart/configuration/LinkartConfiguration.java

@@ -4,6 +4,7 @@ public class LinkartConfiguration {
     public int pathfindingDistance = 6;
     public float velocityMultiplier = 1F;
     public int collisionDepth = 8;
+    public double distance = 1.2d;
     public boolean chunkloading = false;
     public int chunkloadingRadius = 3;
 }

src/main/java/com/github/vini2003/linkart/mixin/AbstractMinecartEntityMixin.java

@@ -46,7 +46,7 @@ public AbstractMinecartEntityMixin(EntityType<?> type, World world) {
             if (linkart$getFollowing() != null) {
                 Vec3d pos = getPos();
                 Vec3d pos2 = linkart$getFollowing().getPos();
-                double dist = Math.abs(pos.distanceTo(pos2)) - 1.2;
+                double dist = Math.max(Math.abs(pos.distanceTo(pos2)) - Linkart.CONFIG.distance, 0);
                 Vec3d vec3d = pos.relativize(pos2);
                 vec3d = vec3d.multiply(Linkart.CONFIG.velocityMultiplier);
 
@@ -62,7 +62,7 @@ public AbstractMinecartEntityMixin(EntityType<?> type, World world) {
 
                 if (differentDirection) {
                     // Keep ourselves going at same speed if on curve
-                    dist += 1.2;
+                    dist += Linkart.CONFIG.distance;
                     vec3d = vel;
                 }