move difficulty-to-stdev logic to lib

1 files changed, 2 insertions, 35 deletions

diff --git a/web/web_opts.c b/web/web_opts.c
index b593306..b880fd3 100644
--- a/web/web_opts.c
+++ b/web/web_opts.c
@@ -16,51 +16,18 @@
 int delay_ms = 1000;
 
 static int difficulty = 32;
-static struct { int diff; double stdev; } DIFF_PRESETS[] = {
-	{ 0, 66.80}, // 10
-	{ 8, 40.24}, // 20
-	{16, 28.14}, // 30
-	{24, 21.35}, // 40
-	{32, 17.20}, // 50
-	{40, 14.34}, // 60
-	{48, 12.15}, // 70
-	{56, 10.36}, // 80
-	{64,  8.83}, // 90
-	{72,  7.48}, // 100
-	{80,  6.32}, // 110
-	{88,  5.34}, // 120
-	{99,  0.00}, // 167
-};
-#define NUM_DIFF_PRESETS (sizeof(DIFF_PRESETS) / sizeof(*DIFF_PRESETS))
 
 static void set_delay(char *val)
 {
 	delay_ms = atoi(val);
 }
 
-static void set_stdev(int diff)
-{
-	if (diff < DIFF_PRESETS[0].diff)
-		diff = DIFF_PRESETS[0].diff;
-	else if (diff > DIFF_PRESETS[NUM_DIFF_PRESETS - 1].diff)
-		diff = DIFF_PRESETS[NUM_DIFF_PRESETS - 1].diff;
-
-	size_t ind = 1;
-	while (ind < NUM_DIFF_PRESETS - 1 && DIFF_PRESETS[ind].diff <= diff)
-		ind++;
-
-	double step = (DIFF_PRESETS[ind - 1].stdev - DIFF_PRESETS[ind].stdev) /
-		(DIFF_PRESETS[ind].diff - DIFF_PRESETS[ind - 1].diff);
-	horizontal_stdev = vertical_stdev = DIFF_PRESETS[ind - 1].stdev -
-		((diff - DIFF_PRESETS[ind - 1].diff) * step);
-}
-
 static void set_difficulty(char *val)
 {
 	int diff = atoi(val);
 	difficulty = diff < 0 ? 0 : diff > 99 ? 99 : diff;
 
-	set_stdev(difficulty);
+	comp_set_difficulty(difficulty);
 }
 
 static char *prefix_opt(char *opt)
@@ -105,7 +72,7 @@ void opts_init()
 {
 	read_delay();
 	if (!read_difficulty())
-		set_stdev(difficulty);
+		comp_set_difficulty(difficulty);
 
 	char buf[64];
 	sprintf(buf, "%d", delay_ms);