Backported "dialog_message" script function

Updated documents for the function.

artifacts/scripting/headers/sfall.h

@@ -280,6 +280,7 @@
 #define create_win(winName, x, y, w, h)                         sfall_func5("create_win", winName, x, y, w, h)
 #define create_win_flag(winName, x, y, w, h, flag)              sfall_func6("create_win", winName, x, y, w, h, flag)
 #define critter_inven_obj2(obj, type)                           sfall_func2("critter_inven_obj2", obj, type)
+#define dialog_message(text)                                    sfall_func1("dialog_message", text)
 #define dialog_obj                                              sfall_func0("dialog_obj")
 #define display_stats                                           sfall_func0("display_stats")
 #define draw_image(artFile, frame, x, y, noTrans)               sfall_func5("draw_image", artFile, frame, x, y, noTrans)

artifacts/scripting/sfall function notes.md

@@ -668,6 +668,11 @@ sfall_funcX metarule functions
 - Redraws inventory list in the inventory/use inventory item on/loot/barter screens
 - `invSide` specifies which side needs to be redrawn: 0 - the player, 1 - target (container/NPC in loot/barter screens), -1 - both sides (same as without argument)
 
+----
+#### dialog_message
+`void sfall_func1("dialog_message", string text)`
+- Displays a message in the NPC response window in dialog or barter screen
+
 ----
 #### get_current_inven_size
 `int sfall_func1("get_current_inven_size", object)`

sfall/FalloutEngine/Functions_def.h

@@ -102,6 +102,7 @@ WRAP_WATCOM_FUNC1(long, FMtext_width, const char*, text)
 WRAP_WATCOM_FUNC0(long, get_input)
 // Searches for message ID in given message file and places result in result argument
 WRAP_WATCOM_FUNC3(const char*, getmsg, const fo::MessageList*, fileAddr, fo::MessageNode*, result, long, messageId)
+WRAP_WATCOM_FUNC1(void, gdialogDisplayMsg, const char*, message)
 WRAP_WATCOM_FUNC1(void, gmouse_3d_set_mode, long, mode)
 WRAP_WATCOM_FUNC1(long, gmouse_set_cursor, long, picNum)
 WRAP_WATCOM_FUNC1(long, gsound_background_volume_get_set, long, setVolume)

sfall/Modules/Scripting/Handlers/Interface.cpp

@@ -385,6 +385,14 @@ void mf_inventory_redraw(OpcodeContext& ctx) {
 	}
 }
 
+void mf_dialog_message(OpcodeContext& ctx) {
+	DWORD loopFlag = GetLoopFlags();
+	if ((loopFlag & DIALOGVIEW) == 0 && (loopFlag & DIALOG)) {
+		const char* message = ctx.arg(0).strValue();
+		fo::func::gdialogDisplayMsg(message);
+	}
+}
+
 void mf_create_win(OpcodeContext& ctx) {
 	int flags = (ctx.numArgs() > 5)
 	          ? ctx.arg(5).rawValue()

sfall/Modules/Scripting/Handlers/Interface.h

@@ -97,6 +97,8 @@ void mf_set_iface_tag_text(OpcodeContext&);
 
 void mf_inventory_redraw(OpcodeContext&);
 
+void mf_dialog_message(OpcodeContext&);
+
 void mf_create_win(OpcodeContext&);
 
 void mf_show_window(OpcodeContext&);

sfall/Modules/Scripting/Handlers/Metarule.cpp

@@ -75,6 +75,7 @@ static const SfallMetarule metarules[] = {
 	{"combat_data",             mf_combat_data,             0, 0},
 	{"create_win",              mf_create_win,              5, 6, -1, {ARG_STRING, ARG_INT, ARG_INT, ARG_INT, ARG_INT, ARG_INT}},
 	{"critter_inven_obj2",      mf_critter_inven_obj2,      2, 2,  0, {ARG_OBJECT, ARG_INT}},
+	{"dialog_message",          mf_dialog_message,          1, 1, -1, {ARG_STRING}},
 	{"dialog_obj",              mf_get_dialog_object,       0, 0},
 	{"display_stats",           mf_display_stats,           0, 0}, // refresh
 	{"draw_image",              mf_draw_image,              1, 5, -1, {ARG_INTSTR, ARG_INT, ARG_INT, ARG_INT, ARG_INT}},