update

unitrenderer.cpp

@@ -1,4 +1,5 @@
 #include "unitrenderer.h"
+#include "pathfinder.h"
 #include <cmath>
 #include <vector>
 
@@ -92,7 +93,10 @@ void UnitRenderer::renderUnits(
     const QMatrix4x4 &projection,
     const QMatrix4x4 &vMatrix,
     const QVector3D &lightDir,
-    int selectedUnitId)
+    int selectedUnitId,
+    int cityViewRadius,
+    int cityViewTileX,
+    int cityViewTileY)
 {
     if (!m_initialized || !m_program) return;
 
@@ -103,6 +107,12 @@ void UnitRenderer::renderUnits(
 
     // 1. Render Cities (as stylized hexagonal / cylindrical city bastions)
     for (const auto &c : cities) {
+        if (cityViewRadius >= 0) {
+            if (c.tileX != cityViewTileX || c.tileY != cityViewTileY) {
+                continue;
+            }
+        }
+
         const Player *p = players.getPlayer(c.playerId);
         QColor col = p ? p->primaryColor : QColor(100, 100, 100);
 
@@ -125,6 +135,12 @@ void UnitRenderer::renderUnits(
     for (const auto &unit : units) {
         if (unit->isDead()) continue;
 
+        if (cityViewRadius >= 0) {
+            if (Pathfinder::hexDistance(cityViewTileX, cityViewTileY, unit->tileX, unit->tileY) > cityViewRadius) {
+                continue;
+            }
+        }
+
         const Player *player = players.getPlayer(unit->playerId);
         QColor col = player ? player->primaryColor : QColor(200, 200, 200);