v1_13 fix

 - Remove v1_13_R1 (Confirms not to be working)
 - Fix relative Move for v1_13_R2 (NMS Packet incompatible with v1_14_R1+)

api/src/main/kotlin/com/github/noonmaru/tap/protocol/PacketSupport.kt

@@ -21,6 +21,7 @@ import com.comphenix.protocol.events.PacketContainer
 import com.comphenix.protocol.wrappers.EnumWrappers
 import com.comphenix.protocol.wrappers.WrappedDataWatcher
 import com.github.noonmaru.tap.fake.createFakeEntity
+import com.github.noonmaru.tap.loader.LibraryLoader
 import org.bukkit.FireworkEffect
 import org.bukkit.Location
 import org.bukkit.entity.*
@@ -166,10 +167,17 @@ class EntityPacketSupport {
         return PacketContainer(PacketType.Play.Server.REL_ENTITY_MOVE).apply {
             integers
                 .write(0, entityId)
-            shorts
-                .write(0, deltaX)
-                .write(1, deltaY)
-                .write(2, deltaZ)
+            if (isLegacyProtocolVersion) {
+                integers
+                    .write(0, deltaX.toInt())
+                    .write(1, deltaY.toInt())
+                    .write(2, deltaZ.toInt())
+            } else {
+                shorts
+                    .write(0, deltaX)
+                    .write(1, deltaY)
+                    .write(2, deltaZ)
+            }
             booleans
                 .write(0, onGround)
         }
@@ -210,10 +218,17 @@ class EntityPacketSupport {
         return PacketContainer(PacketType.Play.Server.REL_ENTITY_MOVE_LOOK).apply {
             integers
                 .write(0, entityId)
-            shorts
-                .write(0, deltaX)
-                .write(1, deltaY)
-                .write(2, deltaZ)
+            if (isLegacyProtocolVersion) {
+                integers
+                    .write(0, deltaX.toInt())
+                    .write(1, deltaY.toInt())
+                    .write(2, deltaZ.toInt())
+            } else {
+                shorts
+                    .write(0, deltaX)
+                    .write(1, deltaY)
+                    .write(2, deltaZ)
+            }
             bytes
                 .write(0, (yaw * 256.0 / 360.0).toByte())
                 .write(1, (pitch * 256.0 / 360.0).toByte())
@@ -290,4 +305,7 @@ class EffectPacketSupport {
             )
         }
     }
-}
+}
+
+private val isLegacyProtocolVersion: Boolean
+    get() = LibraryLoader.getBukkitVersion().split("_")[1].toInt() < 14

settings.gradle.kts

@@ -2,7 +2,6 @@ rootProject.name = "tap"
 
 include(
     "api",
-    "v1_13_R1",
     "v1_13_R2",
     "v1_14_R1",
     "v1_15_R1",