Prepared for buildings spawning

modules/world/road_grid.cpp

@@ -314,7 +314,7 @@ void RoadGrid::build(Ref<Curve> curve, Ref<FastNoiseLite> noise)
 				if (min_height > y)
 					min_height = y;
 			}
-			map_sites.write[i].avg_height = min_height * 0.4f + max_height * 0.6f;
+			map_sites.write[i].avg_height = min_height * 0.7f + max_height * 0.3f;
 		}
 		generate_building_positions();
 		printf("building 3rd dimention done\n");

modules/world/road_grid.h

@@ -272,5 +272,62 @@ public:
 	{
 		return map_sites[site].pos;
 	}
+	HashMap<int, PoolVector<Vector2> > polygon_cache_2d;
+	inline PoolVector<Vector2> get_site_polygon_2d(int site)
+	{
+		if (polygon_cache_2d.has(site))
+			return polygon_cache_2d[site];
+		int count = 0, i;
+		int psize = map_sites[site].polygon_ind.size();
+		PoolVector<Vector2> polygon;
+		polygon.resize(psize);
+		int prev = -1;
+		for (i = 0; i < psize; i++) {
+			int idx = map_sites[site].polygon_ind[i];
+			if (idx == prev)
+				continue;
+			polygon.write()[count++] = diagram_vertices[idx];
+			prev = idx;
+		}
+		polygon.resize(count);
+		polygon_cache_2d[site] = polygon;
+		return polygon;
+	}
+	HashMap<int, PoolVector<Vector3> > polygon_cache_3d;
+	inline PoolVector<Vector3> get_site_polygon_3d(int site)
+	{
+		if (polygon_cache_3d.has(site))
+			return polygon_cache_3d[site];
+		int count = 0, i;
+		int psize = map_sites[site].polygon_ind.size();
+		PoolVector<Vector3> polygon;
+		polygon.resize(psize);
+		int prev = -1;
+		for (i = 0; i < psize; i++) {
+			int idx = map_sites[site].polygon_ind[i];
+			if (idx == prev)
+				continue;
+			polygon.write()[count++] = vertices[idx];
+			prev = idx;
+		}
+		polygon.resize(count);
+		polygon_cache_3d[site] = polygon;
+		return polygon;
+	}
+	inline PoolVector<int> get_here_sites(const Vector3 &position)
+	{
+		PoolVector<int> ret;
+		int i;
+		Rect2i xpos;
+		xpos.position = Vector2i((int)position.x, (int)position.z);
+		xpos.grow(300);
+		for (i = 0; i < map_sites.size(); i++) {
+			if (xpos.intersects(map_sites[i].rect))
+				ret.push_back(i);
+			if (xpos.encloses(map_sites[i].rect))
+				ret.push_back(i);
+		}
+		return ret;
+	}
 };
 #endif

modules/world/roads.cpp

@@ -480,6 +480,10 @@ void RoadsData::_bind_methods()
 	ClassDB::bind_method(D_METHOD("get_road_grid"), &RoadsData::get_road_grid);
 	ClassDB::bind_method(D_METHOD("get_sdf", "x", "y", "z"), &RoadsData::get_sdf);
 	ClassDB::bind_method(D_METHOD("get_site_pos", "site"), &RoadsData::get_site_pos);
+	ClassDB::bind_method(D_METHOD("get_site_polygon_2d", "site"), &RoadsData::get_site_polygon_2d);
+	ClassDB::bind_method(D_METHOD("get_site_polygon_3d", "site"), &RoadsData::get_site_polygon_3d);
+	ClassDB::bind_method(D_METHOD("get_here_sites", "site"), &RoadsData::get_here_sites);
+	ClassDB::bind_method(D_METHOD("get_site_avg_height", "site"), &RoadsData::get_site_avg_height);
 }
 void RoadsData::set_noise(Ref<FastNoiseLite> noise)
 {
@@ -516,7 +520,7 @@ float RoadsData::get_sdf(int x, int y, int z)
 		int site = rg->get_site_from_point(x, z);
 //		printf("in site %d %d %d\n", site, rg->site_is_town(site), rg->site_is_farm(site));
 		if (site >= 0 && (rg->site_is_town(site) || rg->site_is_farm(site))) {
-			ret = y - rg->get_site_avg_height(site);
+			ret = y - rg->get_site_avg_height(site) - CLAMP(n * 0.1f, -0.5f, 0.5f);
 			goto out;
 		}
 	}
@@ -530,3 +534,17 @@ Vector2 RoadsData::get_site_pos(int site)
 	return rg->get_site_pos(site);
 }
 
+PoolVector<Vector2> RoadsData::get_site_polygon_2d(int site)
+{
+	return rg->get_site_polygon_2d(site);
+}
+
+PoolVector<Vector3> RoadsData::get_site_polygon_3d(int site)
+{
+	return rg->get_site_polygon_3d(site);
+}
+
+PoolVector<int> RoadsData::get_here_sites(const Vector3 &position)
+{
+	return rg->get_here_sites(position);
+}

modules/world/roads.h

@@ -97,5 +97,12 @@ public:
 	void set_curve(Ref<Curve> curve);
 	float get_sdf(int x, int y, int z);
 	Vector2 get_site_pos(int site);
+	PoolVector<Vector2> get_site_polygon_2d(int site);
+	PoolVector<Vector3> get_site_polygon_3d(int site);
+	PoolVector<int> get_here_sites(const Vector3 &pos);
+	inline float get_site_avg_height(int site)
+	{
+		return rg->get_site_avg_height(site);
+	}
 };