Add Substring

BauSystem_Main/src/de/steamwar/bausystem/features/script/command/string/Substring.java

@@ -0,0 +1,77 @@
+/*
+ * 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.bausystem.features.script.command.string;
+
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.features.script.ScriptExecutor;
+import de.steamwar.bausystem.features.script.SpecialCommand;
+import de.steamwar.bausystem.features.script.variables.Value;
+
+public class Substring implements SpecialCommand {
+
+    @Override
+    public String[] description() {
+        return new String[]{
+                "§esubstring §8<§7Variable§8> §8<§7Zahl§8>",
+                "§esubstring §8<§7Variable§8> §8<§7Variable§8> §8<§7Zahl§8>",
+                "",
+                "Kürze einen String entweder vorne oder hinter, je nachdem ob die Zahl positiv (vorne) oder negativ (hinten) ist."
+        };
+    }
+
+    @Override
+    public String command() {
+        return "substring";
+    }
+
+    @Override
+    public boolean execute(String[] command, ScriptExecutor scriptExecutor) {
+        if (command.length <= 1) {
+            scriptExecutor.getPlayer().sendMessage(BauSystem.PREFIX + "§cDas erste Argument fehlt und sollte eine Variable sein");
+            return true;
+        }
+        if (command.length <= 2) {
+            scriptExecutor.getPlayer().sendMessage(BauSystem.PREFIX + "§cDas zweite Argument fehlt und sollte eine Variable sein");
+            return true;
+        }
+
+        String resultName = command[1];
+        Value v1 = scriptExecutor.getOrItselfValue(command[command.length - 2]);
+        Value v2 = scriptExecutor.getOrItselfValue(command[command.length - 1]);
+
+        if (v1.getClass() != Value.StringValue.class) {
+            scriptExecutor.getPlayer().sendMessage(BauSystem.PREFIX + "§cNur Strings können verwendet werden");
+            return true;
+        }
+        if (v2.getClass() != Value.LongValue.class) {
+            scriptExecutor.getPlayer().sendMessage(BauSystem.PREFIX + "§cNur Zahlen können verwendet werden");
+            return true;
+        }
+
+        Value result;
+        if (v2.asLong() < 0) {
+            result = new Value.StringValue(v1.asString().substring(v1.asString().length() - 1 - (int) v2.asLong()));
+        } else {
+            result = new Value.StringValue(v1.asString().substring((int) v2.asLong()));
+        }
+        scriptExecutor.getLocalVariables().putValue(resultName, result);
+        return true;
+    }
+}