diff --git a/Makefile b/Makefile
index c9b3049..670b9f0 100644
--- a/Makefile
+++ b/Makefile
@@ -104,3 +104,6 @@ $(BUILDDIR)/$(TARGET)/%.o: $(BDKDIR)/%.c
 $(BUILDDIR)/$(TARGET)/%.o: $(BDKDIR)/%.S
 	@mkdir -p "$(@D)"
 	$(CC) $(CFLAGS) -c $< -o $@
+	
+$(SOURCEDIR)/script/builtin.c: scripts/*.te
+	@py te2c.py source/script/builtin scripts
diff --git a/source/script/StringClass.c b/source/script/StringClass.c
index 40e1903..c5cf5df 100644
--- a/source/script/StringClass.c
+++ b/source/script/StringClass.c
@@ -70,6 +70,16 @@ ClassFunction(stringIndexGet) {
 	return newStringVariablePtr(a, 0, 0);
 }
 
+ClassFunction(stringMinusInt){
+	u32 baseStrLen = strlen(caller->string.value);
+	if (baseStrLen < args[0]->integer.value){
+		SCRIPT_FATAL_ERR("Index of string out of range");
+	}
+	char* newStr = calloc(baseStrLen - args[0]->integer.value + 1, 1);
+	memcpy(newStr, caller->string.value, baseStrLen - args[0]->integer.value);
+	return newStringVariablePtr(newStr, 0, 1);
+}
+
 u8 strOneIntArg[] = { IntClass };
 u8 oneStringArg[] = { StringClass };
 
@@ -79,6 +89,7 @@ ClassFunctionTableEntry_t stringFunctions[] = {
 	{"len", getStringLength, 0, 0},
 	{"bytes", stringBytes, 0, 0},
 	{"get", stringIndexGet, 1, strOneIntArg},
+	{"-", stringMinusInt, 1, strOneIntArg},
 };
 
 Variable_t getStringMember(Variable_t* var, char* memberName) {
diff --git a/source/script/arrayClass.c b/source/script/arrayClass.c
index 4a37057..4fbb9cf 100644
--- a/source/script/arrayClass.c
+++ b/source/script/arrayClass.c
@@ -226,6 +226,25 @@ ClassFunction(eqArray){
 	return newIntVariablePtr(!res);
 }
 
+ClassFunction(arrayFind){
+	Variable_t *arg = (*args);
+	if (caller->solvedArray.vector.count <= arg->solvedArray.vector.count || arg->variableType != caller->variableType){
+		return newIntVariablePtr(-1);
+	}	
+
+	u8 step = (arg->variableType == ByteArrayClass) ? 1 : 8;
+	char *haystack = caller->solvedArray.vector.data;
+	void *needle = arg->solvedArray.vector.data;
+
+	for (int i = 0; i < caller->solvedArray.vector.count - arg->solvedArray.vector.count; i++){
+		if (!memcmp(haystack + (i * step), needle, step * arg->solvedArray.vector.count)){
+			return newIntVariablePtr(i);
+		}
+	}
+
+	return newIntVariablePtr(-1);
+}
+
 ClassFunctionTableEntry_t arrayFunctions[] = {
 	{"get", getArrayIdx, 1, anotherOneIntArg },
 	{"len", getArrayLen, 0, 0},
@@ -239,6 +258,8 @@ ClassFunctionTableEntry_t arrayFunctions[] = {
 	{"bytestostr", bytesToStr, 0, 0},
 	{"==", eqArray, 1, oneByteArrayClass},
 	{"==", eqArray, 1, oneIntArrayClass},
+	{"find", arrayFind, 1, oneByteArrayClass},
+	{"find", arrayFind, 1, oneIntArrayClass},
 };
 
 Variable_t getArrayMember(Variable_t* var, char* memberName) {
diff --git a/source/script/genericClass.c b/source/script/genericClass.c
index 695961c..4aa0597 100644
--- a/source/script/genericClass.c
+++ b/source/script/genericClass.c
@@ -274,7 +274,14 @@ void freeVariableInternal(Variable_t* referencedTarget) {
 			}
 			FREE(referencedTarget->dictionary.vector.data);
 			break;
-	}
+		case SaveClass:;
+			#ifndef WIN32
+			save_free_contexts(&referencedTarget->save->saveCtx);
+			f_close(&referencedTarget->save->saveFile);
+			FREE(referencedTarget->save);
+			#endif // !WIN32
+			break;
+	}	
 }
 
 void freeVariable(Variable_t** target) {
diff --git a/te2c.py b/te2c.py
index cf30915..892ef33 100644
--- a/te2c.py
+++ b/te2c.py
@@ -65,3 +65,4 @@ def te2c(dest: str, path: str, suffix: str=".te"):
 
 if __name__ == "__main__":
     te2c(dest=sys.argv[1], path=sys.argv[2])
+    print("converting .te files done!")