process INCLUDE directive when loading file

diff --git a/engine.js b/engine.js
index d4b920990200254df3fc0bf56dc461215f79d835..0390d83372bb31f1000026bda84813bc6e5a68b9 100644 (file)
--- a/engine.js
+++ b/engine.js
@@ -26,8 +26,23 @@ function Textfile(txtfile) {
   fetch.open("GET", txtfile, false);
   fetch.send();
 
+  function merge(obj, file) {
+    for (each in file) {
+      if (Array.isArray(obj[each]) && Array.isArray(file[each])) obj[each] = [ ...obj[each], ...file[each] ];
+      else if (Array.isArray(obj[each])) obj[each] = [ ...obj[each], file[each] ];
+      else if (Array.isArray(file[each])) obj[each] = [ obj[each], ...file[each] ];
+      else if (each in obj) obj[each] = [ obj[each], file[each] ];
+      else obj[each] = file[each];
+    }
+  }
+
   var line, key, value, ref = this, section;
   for (line of fetch.responseText.split('\n')) switch(true) {
+    // INCLUDE file
+    case /^INCLUDE .+$/.test(line):
+      //console.log("Including: " + line.split(/ /)[1]);
+      merge(ref, new Textfile(line.split(/ /)[1]));
+      break;
     // section headers that always become array elements
     case /^\[(npc|event|layer|dialog)\]$/.test(line):
       section = line.split(/[\]\[]/)[1]; ref = {};
@@ -41,6 +56,10 @@ function Textfile(txtfile) {
       else if (!Array.isArray(this[section])) this[section] = [this[section],ref];
       else if ( Array.isArray(this[section])) this[section].push(ref);
       break;
+    // Clear section on empty line
+    case /^ *$/.test(line):
+      ref = this;
+      break;
     // frame definition from animation files
     // frame=#frame,direction,srcX,srcY,width,height,dstX,dstY
     case /^frame=[0-9]+,[0-7](,[0-9-]+){6}$/.test(line):