Add hot reloading support for collision code

CMakeLists.txt

@@ -497,7 +497,7 @@ if(TARGET_OS STREQUAL "android")
   find_package(Android)
 endif()
 find_package(ZLIB)
-find_package(Crypto)
+# find_package(Crypto)
 find_package(Curl)
 if(CLIENT AND VIDEORECORDER)
   find_package(FFMPEG)
@@ -2621,7 +2621,7 @@ if(SERVER)
   )
 
   # twbl start
-  set(TWBL_ROOT src/external/TeeworldsBotLib)
+  set(TWBL_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/src/external/TeeworldsBotLib)
   add_subdirectory(${TWBL_ROOT})
   include_directories(${TWBL_ROOT}/src)
   FILE(GLOB TWBL_SRC
@@ -2631,8 +2631,50 @@ if(SERVER)
     ${TWBL_ROOT}/src/bots/*.h
   )
 
-  add_library(twbl_bottick SHARED ${TWBL_SRC})
+  add_library(twbl_bottick_lite SHARED ${TWBL_SRC})
   set(SERVER_SRC ${SERVER_SRC} ${TWBL_SRC})
+  # set(SERVER_SRC ${SERVER_SRC}
+  #   ${TWBL_ROOT}/src/shared/hotreload.cpp
+  #   ${TWBL_ROOT}/src/shared/hotreload.h
+  #   ${TWBL_ROOT}/src/shared/types.h
+  #   ${TWBL_ROOT}/src/bots/base.cpp
+  #   ${TWBL_ROOT}/src/bots/base.h
+  # )
+
+
+  add_library(twbl_bottick SHARED
+    ${SERVER_SRC}
+    ${TWBL_SRC}
+    ${ANTIBOT_SRC}
+    ${GAME_GENERATED_SHARED}
+    src/base/hash_ctxt.h
+    src/engine/external/md5/md5.h)
+
+  # add_library(md5 EXCLUDE_FROM_ALL OBJECT ${DEP_MD5_SRC})
+  target_link_libraries(twbl_bottick
+    PRIVATE
+    ${CRYPTO_LIBRARIES}
+      ${DEP_MD5_SRC}
+PUBLIC
+    ssl
+  )
+
+  target_include_directories(twbl_bottick SYSTEM PRIVATE ${CRYPTO_INCLUDE_DIRS})
+
+target_compile_definitions(twbl_bottick PRIVATE TWBL_SHARED_OBJECT=1)
+
+  target_include_directories(twbl_bottick PRIVATE src)
+  target_include_directories(twbl_bottick PRIVATE ${PROJECT_BINARY_DIR}/src)
+  target_include_directories(twbl_bottick PRIVATE src/rust-bridge)
+  add_cxx_compiler_flag_if_supported(OUR_FLAGS_LINK -rdynamic)
+  add_cxx_compiler_flag_if_supported(OUT_FLAGS_LINK -fno-gnu-unique)
+  add_cxx_compiler_flag_if_supported(OUT_FLAGS_LINK -fPIC)
+  add_cxx_compiler_flag_if_supported(OUT_FLAGS -fno-gnu-unique)
+  add_cxx_compiler_flag_if_supported(OUT_FLAGS -fPIC)
+  target_compile_options(twbl_bottick PUBLIC -fPIC)
+
+  # set_own_rpath(game-server)
+
   # twbl end
 
   # Target

src/engine/shared/config_variables.h

@@ -680,3 +680,4 @@ MACRO_CONFIG_INT(ClVideoRecorderFPS, cl_video_recorder_fps, 60, 1, 1000, CFGFLAG
 /*
  * Add config variables for mods below this comment to avoid merge conflicts.
  */
+

src/game/server/entities/character.cpp

@@ -1,12 +1,14 @@
 /* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
 /* If you are missing that file, acquire a complete release at teeworlds.com.                */
 #include "character.h"
+#include "base/system.h"
 #include "laser.h"
 #include "pickup.h"
 #include "projectile.h"
 
 #include <antibot/antibot_data.h>
 
+#include <dlfcn.h>
 #include <engine/antibot.h>
 #include <engine/shared/config.h>
 
@@ -770,10 +772,16 @@ void CCharacter::Tick()
 	if(pHandle)
 	{
 		BotTick(&State, &Bot);
-		dlclose(pHandle);
+		int Err = dlclose(pHandle);
+		if(Err) {
+			dbg_msg("twbl", "failed to close err=%d", Err);
+		} 
+		dlerror();
 	}
 	else
 		Twbl_SampleTick(&State, &Bot);
+
+	BotTick = nullptr;
 
 	m_SavedInput.m_Direction = Bot.m_Direction;