Add error handler to prevent crashes and make investagation easier

js/plugins.js

@@ -1,6 +1,12 @@
 // Generated by RPG Maker.
 // Do not edit this file directly.
 var $plugins = [
+  {
+    name: "ErrorHandler",
+    status: true,
+    description: "Shows detailed error messages for script calls instead of crashing",
+    parameters: {},
+  },
   {
     name: "PluginCommonBase",
     status: true,

js/plugins/ErrorHandler.js

@@ -0,0 +1,40 @@
+// ==================================================
+// ERROR HANDLER PATCH FOR RPG MAKER MZ
+// Place this in js/plugins and enable it
+// ==================================================
+
+/*:
+ * @target MZ
+ * @plugindesc Shows detailed error messages for script calls instead of crashing
+ * @author Debug Helper
+ *
+ * @help This plugin catches script execution errors and displays them
+ * in the console with the actual code that failed.
+ */
+
+(() => {
+    const _Game_Interpreter_command355 = Game_Interpreter.prototype.command355;
+    
+    Game_Interpreter.prototype.command355 = function() {
+        const script = this.currentCommand().parameters[0];
+        try {
+            return _Game_Interpreter_command355.call(this);
+        } catch (e) {
+            console.error('==========================================');
+            console.error('SCRIPT EXECUTION ERROR CAUGHT:');
+            console.error('==========================================');
+            console.error('Error:', e.message);
+            console.error('Script that failed:');
+            console.error(script);
+            console.error('==========================================');
+            
+            // Show error in battle log if available
+            if (BattleManager._logWindow) {
+                BattleManager._logWindow.addText('\\c[18][SCRIPT ERROR: ' + e.message + ']');
+            }
+            
+            // Continue execution instead of crashing
+            return true;
+        }
+    };
+})();

validate_scripts.js

@@ -0,0 +1,41 @@
+// Script to validate all code 355 JavaScript commands in CommonEvents.json
+const fs = require('fs');
+
+console.log('Loading CommonEvents.json...');
+const data = JSON.parse(fs.readFileSync('./data/CommonEvents.json', 'utf8'));
+
+let errorCount = 0;
+let totalScripts = 0;
+
+console.log('Validating script calls...\n');
+
+data.forEach((event, eventIndex) => {
+    if (!event || !event.list) return;
+    
+    event.list.forEach((command, cmdIndex) => {
+        if (command.code === 355 && command.parameters && command.parameters[0]) {
+            totalScripts++;
+            const script = command.parameters[0];
+            
+            try {
+                // Try to parse the script as a Function to check syntax
+                new Function(script);
+            } catch (e) {
+                errorCount++;
+                console.log(`ERROR in Event ${event.id} "${event.name}" (Command index ${cmdIndex}):`);
+                console.log(`Script: ${script.substring(0, 100)}...`);
+                console.log(`Error: ${e.message}\n`);
+            }
+        }
+    });
+});
+
+console.log(`\n=== VALIDATION COMPLETE ===`);
+console.log(`Total scripts checked: ${totalScripts}`);
+console.log(`Errors found: ${errorCount}`);
+
+if (errorCount === 0) {
+    console.log('\nAll scripts are syntactically valid!');
+} else {
+    console.log('\nPlease fix the errors above.');
+}