1.20 support

Signed-off-by: Lixfel <agga-games@gmx.de>

FightSystem_20/build.gradle

@@ -0,0 +1,51 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2021  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+plugins {
+    id 'java'
+}
+
+group 'steamwar'
+version '1.0'
+
+compileJava.options.encoding = 'UTF-8'
+
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+
+sourceSets {
+    main {
+        java {
+            srcDirs = ['src/']
+        }
+        resources {
+            srcDirs = ['src/']
+            exclude '**/*.java', '**/*.kt'
+        }
+    }
+}
+
+dependencies {
+    implementation project(":FightSystem_Core")
+    implementation project(":FightSystem_18")
+
+    compileOnly 'org.spigotmc:spigot-api:1.20-R0.1-SNAPSHOT'
+
+    compileOnly swdep("Spigot-1.20")
+}

FightSystem_20/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper20.java

@@ -0,0 +1,30 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2021  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.fightsystem.utils;
+
+import org.bukkit.entity.Entity;
+
+public class CraftbukkitWrapper20 extends CraftbukkitWrapper18 {
+
+    @Override
+    public float headRotation(Entity e) {
+        return getEntity(e).cm();
+    }
+}