SC2Mapster

This part is handled by Triggers. In particular Liberty library that sits in Liberty base dependencies.

Values are set as constants so cannot be altered directly..

const int libLbty_gv_c_PINGMAXCOUNT = 3;
const fixed libLbty_gv_c_PINGRESETTIME = 2.0;
const fixed libLbty_gv_c_PINGSUPPRESSIONTIME = 0.25;
const fixed libLbty_gv_c_PINGLOCKOUTTIME = 5.0;

 I think viable way would be to have a trigger tied to Ping Event, which would reset the current counter.

You should examine libLbty_gf_PingPlay function to get a better idea.

But in short you should reset the counter of

int[17] libLbty_gv_pingRecentCount;

By overriding current value with 0 every time trigger is fired.

Another way is to make a custom implementation of this system, basing on existing triggers.