Add support for using only 1 lighthouse

Change adds a config option for the number of "active" lighthouses,
which can be 1.  Calibrate will run with a single lighthouse
if the new config option LighthouseCount is set to 1.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/survive.c b/src/survive.c
index f637bd8..0c88137 100755
--- a/src/survive.c
+++ b/src/survive.c
@@ -75,6 +75,8 @@ SurviveContext * survive_init( int headless )
 
 	config_read(ctx, "config.json");
 
+	ctx->activeLighthouses = config_read_uint32(ctx->global_config_values, "LighthouseCount", 2);
+
 	ctx->faultfunction = survivefault;
 	ctx->notefunction = survivenote;