X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=mcwordfeud.cpp;h=2bd4a5243cc1847b8251b5d4ed1ed48787dd2531;hb=1e27ce64b3bd8574c621f1b7d47f94593d99318b;hp=7470af3feafcc760928b06cd724b5d03e4572299;hpb=6c452730c371fa94d4140ec53d94c034418198b7;p=wloh

diff --git a/mcwordfeud.cpp b/mcwordfeud.cpp
index 7470af3..2bd4a52 100644
--- a/mcwordfeud.cpp
+++ b/mcwordfeud.cpp
@@ -14,6 +14,8 @@ using namespace std;
 
 #define MAX_PLAYERS 16
 
+float match_stddev = 70.0f;
+
 struct player {
 	int player_index;
 	int points, margin;
@@ -50,9 +52,9 @@ float draw_gaussian(float stddev)
 float draw_gaussian(float mu, float stddev)
 {
 	static bool inited = false;
-	static long unsigned seed = 123456789;
-	int kn[128];
-	float fn[128], wn[128];
+	static long unsigned seed = time(NULL);
+	static int kn[128];
+	static float fn[128], wn[128];
 	if (!inited) {
 		r4_nor_setup(kn, fn, wn);
 		inited = true;
@@ -66,6 +68,11 @@ int main(int argc, char **argv)
 {
 	int trials = atoi(argv[1]);
 
+	if (scanf("%f", &match_stddev) != 1) {
+		fprintf(stderr, "Could't read match stddev\n");
+		exit(1);
+	}
+
 	int num_players;
 	if (scanf("%d", &num_players) != 1) {
 		fprintf(stderr, "Could't read number of players\n");
@@ -73,7 +80,7 @@ int main(int argc, char **argv)
 	}
 
 	if (num_players > MAX_PLAYERS) {
-		fprintf(stderr, "Max %d players supported\n");
+		fprintf(stderr, "Max %d players supported\n", MAX_PLAYERS);
 		exit(1);
 	}
 
@@ -145,7 +152,7 @@ int main(int argc, char **argv)
 
 				float mu = ratings[pl1] - ratings[pl2];
 				
-				int score = lrintf(draw_gaussian(mu, 82.9f));
+				int score = lrintf(draw_gaussian(mu, match_stddev));
 				scores[pl1][pl2] = score;
 				scores[pl2][pl1] = -score;
 			}