src/de/steamwar/linkage/LinkageType.java

@@ -19,6 +19,8 @@
 
 package de.steamwar.linkage;
 
+import de.steamwar.linkage.plan.BuildPlan;
+
 public interface LinkageType {
 
     // String name = new BufferedReader(new InputStreamReader(processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, "", "plugin.yml").openInputStream()))
@@ -36,5 +38,5 @@ public interface LinkageType {
         return null;
     }
 
-    String generateCode(String instance);
+    void generateCode(BuildPlan buildPlan, String instance);
 }

src/de/steamwar/linkage/MinVersion.java

@@ -0,0 +1,27 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  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.linkage;
+
+/**
+ * Only applicable in Spigot context. Will be ignored in other contexts.
+ */
+public @interface MinVersion {
+    int value();
+}

src/de/steamwar/linkage/plan/BuildPlan.java

@@ -34,9 +34,26 @@ public class BuildPlan implements Writer {
     private final String className;
 
     private Map<Class<?>, FieldBuilder> fieldBuilderMap = new HashMap<>();
+    private Map<String, MethodBuilder> methodBuilderMap = new HashMap<>();
 
     public void addField(FieldBuilder fieldBuilder) {
-        fieldBuilderMap.put(fieldBuilder.getType(), fieldBuilder);
+        fieldBuilderMap.putIfAbsent(fieldBuilder.getType(), fieldBuilder);
+    }
+
+    public boolean hasField(Class<?> type) {
+        return fieldBuilderMap.containsKey(type);
+    }
+
+    public String getFieldName(Class<?> type) {
+        return fieldBuilderMap.get(type).getFieldName();
+    }
+
+    public void addMethod(MethodBuilder methodBuilder) {
+        methodBuilderMap.put(methodBuilder.getMethodName(), methodBuilder);
+    }
+
+    public boolean hasMethod(String methodName) {
+        return methodBuilderMap.containsKey(methodName);
     }
 
     @Override
@@ -47,6 +64,12 @@ public class BuildPlan implements Writer {
         for (FieldBuilder fieldBuilder : fieldBuilderMap.values()) {
             fieldBuilder.write(writer);
         }
+        if (!fieldBuilderMap.isEmpty() && !methodBuilderMap.isEmpty()) {
+            writer.write("\n");
+        }
+        for (MethodBuilder methodBuilder : methodBuilderMap.values()) {
+            methodBuilder.write(writer);
+        }
         writer.write("}\n");
     }
 }

src/de/steamwar/linkage/plan/FieldBuilder.java

@@ -31,8 +31,12 @@ public class FieldBuilder implements Writer {
     @Getter
     private Class<?> type;
 
+    public String getFieldName() {
+        return type.getSimpleName();
+    }
+
     @Override
     public void write(BufferedWriter writer) throws IOException {
-        writer.write("    private static " + type.getTypeName() + " " + type.getSimpleName() + ";");
+        writer.write("    private static " + type.getTypeName() + " " + getFieldName() + ";\n");
     }
 }

src/de/steamwar/linkage/plan/MethodBuilder.java

@@ -0,0 +1,57 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  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.linkage.plan;
+
+import de.steamwar.linkage.Writer;
+import lombok.RequiredArgsConstructor;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+@RequiredArgsConstructor
+public class MethodBuilder implements Writer {
+
+    private final String name;
+    private final Class<?> returnType;
+    private List<ParameterBuilder> parameters = new ArrayList<>();
+    private List<String> lines = new ArrayList<>();
+
+    public String getMethodName() {
+        return name;
+    }
+
+    @Override
+    public void write(BufferedWriter writer) throws IOException {
+        writer.write("    public static " + returnType.getTypeName() + " " + getMethodName() + "(");
+        for (int i = 0; i < parameters.size(); i++) {
+            parameters.get(i).write(writer);
+            if (i < parameters.size() - 1) {
+                writer.write(", ");
+            }
+        }
+        writer.write(") {");
+        for (String line : lines) {
+            writer.write("        " + line);
+        }
+        writer.write("    }\n");
+    }
+}

src/de/steamwar/linkage/plan/ParameterBuilder.java

@@ -0,0 +1,37 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  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.linkage.plan;
+
+import de.steamwar.linkage.Writer;
+import lombok.AllArgsConstructor;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+
+@AllArgsConstructor
+public class ParameterBuilder implements Writer {
+    private Class<?> type;
+    private String name;
+
+    @Override
+    public void write(BufferedWriter writer) throws IOException {
+        writer.write(type.getTypeName() + " " + name);
+    }
+}

src/de/steamwar/linkage/types/Command.java

@@ -21,6 +21,7 @@ package de.steamwar.linkage.types;
 
 import de.steamwar.command.AbstractSWCommand;
 import de.steamwar.linkage.LinkageType;
+import de.steamwar.linkage.plan.BuildPlan;
 
 public class Command implements LinkageType {
 
@@ -30,7 +31,6 @@ public class Command implements LinkageType {
     }
 
     @Override
-    public String generateCode(String instance) {
-        return null;
+    public void generateCode(BuildPlan buildPlan, String instance) {
     }
 }