portal: combating the space-detection issue.
what needs to be tweaked next is how far away objects are spawned.
it should either be a trial&error adjustment or depend on the object's moving direction and the portal's angle in order to avoid issues with box collisions.
if the spawn distance to the portal is just a fixed value (as it was before this patch) or a constant factor (it is now) it can be too big for "nice" portal angles (in tight gaps with still enough space, but -> denied) and too small for bad angles (box collision esp. on big objects like barrels -> denied)
find_package(OpenAL REQUIRED)
find_package(OggVorbis REQUIRED)
include_directories(${OPENAL_INCLUDE_DIR})
include_directories(${OGGVORBIS_INCLUDE_DIRS})
#set destination directory for library
set(LIBRARY_OUTPUT_PATH ${EXECUTABLE_OUTPUT_PATH})
#list of source files for libraries
set(openal_src openalbridge.c loaders.c wrappers.c commands.c)
#build a static library for human systems
set (build_type STATIC)
#visualstudio and windows in general don't like static linking, so we're building the library in shared mode
if(WIN32)
#workaround for visualstudio (wants headers in the source list)
set(openal_src *.h ${openal_src})
#deps for the shared library
link_libraries(${VORBISFILE_LIBRARY})
link_libraries(${VORBIS_LIBRARY})
link_libraries(${OGG_LIBRARY})
link_libraries(${OPENAL_LIBRARY})
#build a shared library
set (build_type SHARED)
endif()
#compiles and links actual library
add_library (openalbridge ${build_type} ${openal_src})
if(WIN32)
if(MSVC)
SET_TARGET_PROPERTIES(openalbridge PROPERTIES LINK_FLAGS /DEF:openalbridge.def)
endif(MSVC)
#install it in the executable directory
install(TARGETS openalbridge DESTINATION bin)
endif(WIN32)
#type make openalbridge_test to get a small executable test
add_executable(openalbridge_test "${hedgewars_SOURCE_DIR}/misc/libopenalbridge/tester.c")
target_link_libraries(openalbridge_test openalbridge ${OPENAL_LIBRARY} ${OGGVORBIS_LIBRARIES})