Added ability to pathfind when long touching with a finger and the op…

…tion to toggle it in the "iOS" options.

It will show a little animation on releasing the finger when the path is clear and "BLOCKED" when Exult can't find a path there.
It could use an improvement to show the animation *while* the finger is touching but that would require a timer in the SDL_MOUSEBUTTONDOWN event in exult.cc.

exult.cc

@@ -1506,6 +1506,10 @@ static void Handle_event(
 	case SDL_MOUSEBUTTONDOWN: {
 		if (dont_move_mode)
 			break;
+#ifdef __IPHONEOS__
+		uint32 curtime = SDL_GetTicks();
+		last_b1down_click = curtime;
+#endif
 #ifdef UNDER_CE
 		if (gkeyboard->handle_event(&event))
 			break;
@@ -1661,6 +1665,14 @@ static void Handle_event(
 			if (!dragging || !dragged)
 				last_b1_click = curtime;
 
+#ifdef __IPHONEOS__
+		    if (gwin->get_touch_pathfind() && !click_handled && (curtime - last_b1down_click > 500) && avatar_can_act && gwin->main_actor_can_act_charmed() && !(gump = gump_man->find_gump(x, y, false))) {
+				gwin->start_actor_along_path(x, y, Mouse::mouse->avatar_speed);
+				dragging = dragged = false;
+				break;
+			}
+#endif
+
 			if (!click_handled && avatar_can_act &&
 			        left_down_x - 1 <= x && x <= left_down_x + 1 &&
 			        left_down_y - 1 <= y && y <= left_down_y + 1) {

exult.h

@@ -47,6 +47,10 @@ extern int Get_click(
     bool rotate_colors = false      // If the palette colors should rotate.
 );
 
+#ifdef __IPHONEOS__
+static int last_b1down_click;
+#endif
+
 /*
  *  Make a screenshot of the current screen display
  */

gamewin.cc

@@ -494,6 +494,9 @@ Game_window::Game_window(
 	}
 	config->set("config/iphoneos/dpad_location", str, false);
 	config->value("config/shortcutbar/use_shortcutbar", str, "translucent");
+	config->value("config/iphoneos/touch_pathfind", str, "yes");
+	touch_pathfind = str == "yes";
+	config->set("config/iphoneos/touch_pathfind", touch_pathfind ? "yes" : "no", false);
 #else
 	config->value("config/shortcutbar/use_shortcutbar", str, "no");
 #endif
@@ -1919,10 +1922,19 @@ void Game_window::start_actor_along_path(
 	int liftpixels = 4 * lift;  // Figure abs. tile.
 	Tile_coord dest(get_scrolltx() + (winx + liftpixels) / c_tilesize,
 	                get_scrollty() + (winy + liftpixels) / c_tilesize, lift);
-	if (!main_actor->walk_path_to_tile(dest, speed))
+	if (!main_actor->walk_path_to_tile(dest, speed)) {
 		cout << "Couldn't find path for Avatar." << endl;
-	else
+#ifdef __IPHONEOS__
+		if (touch_pathfind)
+			Mouse::mouse->flash_shape(Mouse::blocked);
+#endif
+	} else {
+#ifdef __IPHONEOS__	
+		if (touch_pathfind)	
+			get_effects()->add_effect(new Sprites_effect(18, dest, 0, 0, 0, 0));
+#endif
 		main_actor->get_followers();
+	}
 }
 
 /*

gamewin.h

@@ -147,6 +147,7 @@ class Game_window {
 	//iphoneOS Options
 	bool item_menu;
 	int dpad_location;
+	bool touch_pathfind;
 #endif
 	// Private methods:
 	void set_scrolls(Tile_coord cent);
@@ -331,6 +332,12 @@ class Game_window {
 	inline int get_dpad_location() {
 		return dpad_location;
 	}
+	bool get_touch_pathfind() const {
+		return touch_pathfind;
+	}
+	void set_touch_pathfind(bool s) {
+		touch_pathfind = s;
+	}
 #endif
 	/*
 	 *  Game components:

gumps/iphoneOptions_gump.cc

@@ -109,6 +109,8 @@ void iphoneOptions_gump::toggle(Gump_button *btn, int state) {
 		item_menu = state;
 	else if (btn == buttons[id_dpad_location])
 		dpad_location = state;
+	else if (btn == buttons[id_touch_pathfind])
+		touch_pathfind = state;
 }
 
 void iphoneOptions_gump::build_buttons() {
@@ -135,6 +137,8 @@ void iphoneOptions_gump::build_buttons() {
 	buttons[id_dpad_location] = new iphoneTextToggle(this, dpad_text, colx[4], rowy[1],
 		59, dpad_location, num_dpad_texts);
 
+	buttons[id_touch_pathfind] = new iphoneEnabledToggle(this, colx[4], rowy[2],
+		59, touch_pathfind);
 	// Ok
 	buttons[id_ok] = new iphoneOptions_button(this, oktext, colx[0], rowy[12]);
 	// Cancel
@@ -145,6 +149,7 @@ void iphoneOptions_gump::load_settings() {
 	//string yn;
 	item_menu = gwin->get_item_menu();
 	dpad_location = gwin->get_dpad_location();
+	touch_pathfind = gwin->get_touch_pathfind();
 }
 
 iphoneOptions_gump::iphoneOptions_gump()
@@ -172,6 +177,10 @@ void iphoneOptions_gump::save_settings() {
 	gwin->set_dpad_location(dpad_location);
 	config->set("config/iphoneos/dpad_location", dpad_texts[dpad_location], false);
 
+	gwin->set_touch_pathfind(touch_pathfind != 0);
+	config->set("config/iphoneos/touch_pathfind",
+	            touch_pathfind ? "yes" : "no", false);
+
 	config->write_back();
 
 	touchui->onDpadLocationChanged();
@@ -186,6 +195,7 @@ void iphoneOptions_gump::paint() {
 	Image_window8 *iwin = gwin->get_win();
 	font->paint_text(iwin->get_ib8(), "Item helper menu:", x + colx[0], y + rowy[0] + 1);
 	font->paint_text(iwin->get_ib8(), "D-Pad screen location:", x + colx[0], y + rowy[1] + 1);
+	font->paint_text(iwin->get_ib8(), "Long touch pathfind:", x + colx[0], y + rowy[2] + 1);
 
 	gwin->set_painted();
 }

gumps/iphoneOptions_gump.h

@@ -32,13 +32,15 @@ class iphoneOptions_gump : public Modal_gump {
 private:
 	bool item_menu;
 	int dpad_location;
+	bool touch_pathfind;
 
 	enum button_ids {
 	    id_first = 0,
 	    id_ok = id_first,
 	    id_cancel,
 	    id_item_menu,
 	    id_dpad_location,
+		id_touch_pathfind,
 	    id_count
 	};
 	Gump_button *buttons[id_count];