Merge branch 'master' into jgrpp

# Conflicts:
#	.github/workflows/ci-build.yml
#	src/ai/ai_gui.cpp
#	src/blitter/32bpp_optimized.cpp
#	src/blitter/32bpp_simple.cpp
#	src/blitter/32bpp_sse2.cpp
#	src/blitter/8bpp_optimized.cpp
#	src/blitter/8bpp_simple.cpp
#	src/blitter/null.cpp
#	src/blitter/null.hpp
#	src/company_gui.cpp
#	src/game/game_gui.cpp
#	src/genworld_gui.cpp
#	src/gfx.cpp
#	src/gfx_func.h
#	src/graph_gui.cpp
#	src/industry_gui.cpp
#	src/linkgraph/linkgraphjob.cpp
#	src/network/network_gui.cpp
#	src/newgrf_debug_gui.cpp
#	src/openttd.cpp
#	src/pathfinder/npf/aystar.h
#	src/road_gui.cpp
#	src/saveload/order_sl.cpp
#	src/saveload/saveload.cpp
#	src/saveload/saveload.h
#	src/script/api/script_log.cpp
#	src/script/api/script_town.cpp
#	src/script/script_gui.cpp
#	src/settings.cpp
#	src/settings_gui.cpp
#	src/settings_table.cpp
#	src/settings_type.h
#	src/smallmap_gui.cpp
#	src/sortlist_type.h
#	src/spritecache.cpp
#	src/spriteloader/grf.cpp
#	src/spriteloader/grf.hpp
#	src/spriteloader/spriteloader.hpp
#	src/station_cmd.cpp
#	src/station_cmd.h
#	src/station_gui.cpp
#	src/strings.cpp
#	src/toolbar_gui.cpp
#	src/town_cmd.cpp
#	src/town_gui.cpp
#	src/vehicle_gui.cpp
#	src/vehicle_gui_base.h
#	src/video/opengl.cpp
#	src/video/opengl.h
#	src/widgets/dropdown.cpp
#	src/widgets/dropdown_type.h
#	src/window_gui.h

src/pathfinder/npf/aystar.cpp

@@ -315,4 +315,7 @@ void AyStar::Init(uint num_buckets)
 	 *  When that one gets full it reserves another one, till this number
 	 *  That is why it can stay this high */
 	this->openlist_queue.Init(102400);
+
+	/* Set a reasonable default limit */
+	this->max_search_nodes = AYSTAR_DEF_MAX_SEARCH_NODES;
 }

src/pathfinder/npf/aystar.h

@@ -25,6 +25,8 @@
 #include "../../core/pod_pool.hpp"
 #include "../../3rdparty/robin_hood/robin_hood.h"
 
+static const int AYSTAR_DEF_MAX_SEARCH_NODES = 10000; ///< Reference limit for #AyStar::max_search_nodes
+
 /** Return status of #AyStar methods. */
 enum AystarStatus {
 	AYSTAR_FOUND_END_NODE, ///< An end node was found.

src/pathfinder/pathfinder_type.h

@@ -11,6 +11,7 @@
 #define PATHFINDER_TYPE_H
 
 #include "../tile_type.h"
+#include "npf/aystar.h"
 
 /** Length (penalty) of one tile with NPF */
 static const int NPF_TILE_LENGTH = 100;