Fixed Fylgja bug with the edge of the map.

src/fylgja_system.nvgt

@@ -166,12 +166,25 @@ void run_fylgja_menu() {
 
 bool activate_fylgja(int fylgjaIndex) {
     if (fylgjaIndex == FYLGJA_UNICORN) {
+        if (!can_start_unicorn_fylgja_charge()) {
+            speak_with_history("You need open ground in front of you to charge.", true);
+            return false;
+        }
         start_unicorn_fylgja_charge();
         return true;
     }
     return false;
 }
 
+bool can_start_unicorn_fylgja_charge() {
+    if (x <= BASE_END) return false;
+    int step = (facing == 1) ? 1 : -1;
+    int targetX = x + step;
+    if (targetX < 0 || targetX >= MAP_SIZE) return false;
+    if (should_stop_charge_for_climb_up(x, targetX)) return false;
+    return true;
+}
+
 void start_unicorn_fylgja_charge() {
     reset_fishing_session();
 
@@ -261,7 +274,7 @@ void update_fylgja_charge() {
         return;
     }
 
-    if (x <= BASE_END || x <= 0 || x >= MAP_SIZE - 1) {
+    if (x <= BASE_END) {
         stop_fylgja_charge();
         return;
     }
@@ -297,7 +310,7 @@ void update_fylgja_charge() {
         check_snare_collision(x);
         apply_fylgja_trample_damage(x);
 
-        if (x <= BASE_END || x <= 0 || x >= MAP_SIZE - 1) {
+        if (x <= BASE_END) {
             stop_fylgja_charge();
             return;
         }