Reimplement connection mirroring

src/core/mapconnection.cpp

@@ -0,0 +1,43 @@
+#include "mapconnection.h"
+#include "map.h"
+
+void MapConnection::setDirection(const QString & direction) {
+    if (direction == m_direction)
+        return;
+    auto before = m_direction;
+    m_direction = direction;
+    emit directionChanged(before, m_direction);
+}
+
+void MapConnection::setOffset(int offset) {
+    if (offset == m_offset)
+        return;
+    auto before = m_offset;
+    m_offset = offset;
+    emit offsetChanged(before, m_offset);
+}
+
+void MapConnection::setMapName(const QString &mapName) {
+    if (mapName == m_mapName)
+        return;
+    auto before = m_mapName;
+    m_mapName = mapName;
+    emit mapNameChanged(before, m_mapName);
+}
+/*
+static QString MapConnection::oppositeDirection(const QString &direction) {
+    static const QMap<QString, QString> oppositeDirections = {
+        {"up", "down"}, {"down", "up"},
+        {"right", "left"}, {"left", "right"},
+        {"dive", "emerge"}, {"emerge", "dive"}
+    };
+    return oppositeDirections.value(direction);
+}
+
+static MapConnection* MapConnection::getMirror(const MapConnection*, const Map*) {
+
+}
+
+static MapConnection* MapConnection::newMirror(const MapConnection*) {
+
+}*/