Geyser: overhaul of template (#162)

geyserconfig.json

@@ -1,18 +1,58 @@
 [
     {
-        "DisplayName": "Minimum Memory (MB)",
-        "Description": "The minimum memory allocated to Geyser, in MB",
-        "FieldName": "MinMemory",
-        "Keywords": "memory",
-        "InputType": "number",
-        "Category": "Geyser Configuration"
+        "DisplayName":"Java Version",
+        "Category":"Java Settings",
+        "Description":"Sets the Java version to install. Must be a major version number only such as 18 or 19, not a subversion. Check the [Geyser wiki](https://wiki.geysermc.org/geyser/setup/) for versions compatible with Geyser, and the [Oracle website](https://www.oracle.com/java/technologies/downloads/) for available downloads. Server must be updated after changing this setting",
+        "Keywords":"java,version",
+        "FieldName":"JavaVersion",
+        "InputType":"number",
+        "MinValue":"17",
+        "IsFlagArgument":false,
+        "ParamFieldName":"JavaVersion",
+        "IncludeInCommandLine":false,
+        "DefaultValue":"18",
+        "EnumValues":{}
     },
     {
-        "DisplayName": "JAR File",
-        "Description": "The JAR file to execute",
-        "FieldName": "JarFile",
-        "Keywords": "jar",
-        "InputType": "text",
-        "Category": "Geyser Configuration"
+        "DisplayName":"Minimum Memory",
+        "Category":"Java Settings",
+        "Description":"Java's minimum heap size",
+        "Keywords":"minimum,memory,heap",
+        "FieldName":"MinMemory",
+        "InputType":"number",
+        "IsFlagArgument":false,
+        "ParamFieldName":"MinMemory",
+        "IncludeInCommandLine":false,
+        "DefaultValue":"1024",
+        "Suffix":"MB",
+        "EnumValues":{}
+    },
+    {
+        "DisplayName":"Maximum Memory",
+        "Category":"Java Settings",
+        "Description":"Java's maximum heap size",
+        "Keywords":"maximum,memory,heap",
+        "FieldName":"MaxMemory",
+        "InputType":"number",
+        "IsFlagArgument":false,
+        "ParamFieldName":"MaxMemory",
+        "IncludeInCommandLine":false,
+        "DefaultValue":"1024",
+        "Suffix":"MB",
+        "EnumValues":{}
+    },
+    {
+        "DisplayName":"Additional Java Startup Parameters",
+        "Category":"Java Settings",
+        "Description":"Additional Java arguments (not server arguments) as startup parameters that are not otherwise set by AMP. Use with care",
+        "Keywords":"custom,java,arguments,parameters",
+        "FieldName":"CustomJavaArgs",
+        "InputType":"text",
+        "IsFlagArgument":false,
+        "ParamFieldName":"CustomJavaArgs",
+        "IncludeInCommandLine":false,
+        "DefaultValue":"",
+        "Placeholder":"-XX:+UseG1GC",
+        "EnumValues":{}
     }
 ]