1 files changed, 10 insertions, 0 deletions
diff --git a/src/character.c b/src/character.c
new file mode 100644
index 0000000..658f0be
--- /dev/null
+++ b/src/character.c
@@ -0,0 +1,10 @@
+#include "character.h"
+
+const char character_luminance_map [] = {' ', ' ', '.', ',', '`', '-', '~', '"', '*', ':', ';', '<', '!', '/', '?', '%', '&', '=', '$', '#'};
+//const char map[] = {' ', '`', '.', ',', ':', ';', '\"', '+', '#', '@'};
+
+char calc_char(uint8_t _c , uint8_t _min, uint8_t _max)
+{
+  float c = (float)(_c) / (_max - _min);
+  return character_luminance_map [(int)((sizeof(character_luminance_map)-1) * (c))];
+}