fix .so placement and loading paths

CMakeLists.txt

@@ -122,7 +122,8 @@ function(give_options target)
                         -ffp-contract=fast
                         -fno-signed-zeros
                         -fno-trapping-math
-                        -freciprocal-math)
+                        -freciprocal-math
+                        -Wl,$<$<BOOL:${TOWNENGINE_HOT_RELOAD}>:-rpath ./>)
 
                 set(BUILD_FLAGS_RELEASE
                         -O3
@@ -204,7 +205,12 @@ function(use_townengine target sources output_directory)
                 give_options(${target}_shared)
                 include_deps(${target}_shared)
                 target_link_libraries(${target}_shared PUBLIC SDL2::SDL2)
-                add_executable(${target} ${CMAKE_SOURCE_DIR}/townengine/null.c)
+                add_executable(${target} ${TOWNENGINE_DIR}/townengine/null.c)
+                                set_target_properties(${target}_shared PROPERTIES
+                                                       OUTPUT_NAME game
+                                                       LIBRARY_OUTPUT_DIRECTORY ${output_directory})
+                set_target_properties(${TOWNENGINE_TARGET} PROPERTIES
+                                                       LIBRARY_OUTPUT_DIRECTORY ${output_directory})
         else ()
                 add_executable(${target} ${sources})
         endif ()