other features

src/main/java/carpet/mixins/KelpFeatureMixin.java

@@ -0,0 +1,24 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.world.gen.feature.KelpFeature;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.Random;
+
+@Mixin(KelpFeature.class)
+public class KelpFeatureMixin
+{
+    @Redirect(method = "method_13460", at = @At(value = "INVOKE", target = "Ljava/util/Random;nextInt(I)I"))
+    private int getRandom(Random random, int bound)
+    {
+        if (bound==10)
+            return random.nextInt(bound);
+        int limit = CarpetSettings.getInt("kelpGenerationGrowLimit");
+        if (limit == 0)
+            return random.nextInt(bound);
+        return 25-limit+random.nextInt(Math.min(23,limit+1));
+    }
+}