Converted tooling to C.

tools/vn/CMakeLists.txt

@@ -15,6 +15,7 @@ target_sources(character_generator
     character_generator.c
     ../utils/file.c
     ../utils/xml.c
+    ../utils/image.c
 )
 target_include_directories(character_generator
   PUBLIC
@@ -28,7 +29,7 @@ target_link_libraries(character_generator
 # Function Target
 function(tool_vn_character target in out)
   add_custom_target(vn_character_${target}
-    COMMAND character_generator "${in}" "${TEMP_DIR}/${out}"
+    COMMAND character_generator "${in}" "${TEMP_DIR}/${out}.png"
     COMMENT "Generating character ${target} from ${in}"
     DEPENDS character_generator ${ARGN}
   )