Added custom character palette

1 files changed, 7 insertions, 5 deletions

diff --git a/src/character.c b/src/character.c
index 658f0be..8a42370 100644
--- a/src/character.c
+++ b/src/character.c
@@ -1,10 +1,12 @@
 #include "character.h"
 
-const char character_luminance_map [] = {' ', ' ', '.', ',', '`', '-', '~', '"', '*', ':', ';', '<', '!', '/', '?', '%', '&', '=', '$', '#'};
-//const char map[] = {' ', '`', '.', ',', ':', ';', '\"', '+', '#', '@'};
+const char *default_character_map="  .,-~\"*:;<!/?%&=$#";
+//const char *default_character_map=" `.,:;/+#@";
 
-char calc_char(uint8_t _c , uint8_t _min, uint8_t _max)
+char calc_char(uint8_t _c , uint8_t _min, uint8_t _max, char *_custom_map)
 {
-  float c = (float)(_c) / (_max - _min);
-  return character_luminance_map [(int)((sizeof(character_luminance_map)-1) * (c))];
+	const char *map = _custom_map == 0 ? default_character_map : _custom_map;
+
+	float c = (float)(_c) / (_max - _min);
+	return map [(int)( strlen( map ) * (c))];
 }