Enemy pathing is back.

map.cpp

@@ -293,6 +293,10 @@ void Map::set_target(const Point &at, int value) {
   $input_map[at.y][at.x] = 0;
 }
 
+void Map::clear_light_target(const Point &at) {
+  $input_map[at.y][at.x] = 1;
+}
+
 void Map::clear_target(const Point &at) {
   $input_map[at.y][at.x] = 1;
 }
@@ -407,6 +411,7 @@ int Map::light_level(int level, size_t x, size_t y) {
 void Map::render_light(LightSource source, Point at) {
   Point min, max;
   light_box(source, at, min, max);
+  clear_light_target(at);
 
   for(size_t x = min.x; x <= max.x; ++x) {
     for(size_t y = min.y; y <= max.y; ++y) {

map.hpp

@@ -85,6 +85,7 @@ public:
   Point center_camera(const Point &around, size_t view_x, size_t view_y);
   void reset_light();
   void set_light_target(const Point &at, int value=0);
+  void clear_light_target(const Point &at);
   void path_light();
   void light_box(LightSource source, Point from, Point &min_out, Point &max_out);
   int light_level(int level, size_t x, size_t y);