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implement mulberry32 for PRNG

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This commit is contained in:
Lee Salzman 2021-01-13 01:39:14 -05:00
parent 2cc0e7c780
commit e3ada4ed75
2 changed files with 12 additions and 1 deletions
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12
host.c
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@ -160,6 +160,16 @@ enet_host_destroy (ENetHost * host)
enet_free (host); enet_free (host);
} }
enet_uint32
enet_host_random (ENetHost * host)
{
/* Mulberry32 by Tommy Ettinger */
enet_uint32 n = (host -> randomSeed += 0x6D2B79F5U);
n = (n ^ (n >> 15)) * (n | 1U);
n ^= n + (n ^ (n >> 7)) * (n | 61U);
return n ^ (n >> 14);
}
/** Initiates a connection to a foreign host. /** Initiates a connection to a foreign host.
@param host host seeking the connection @param host host seeking the connection
@param address destination for the connection @param address destination for the connection
@ -199,7 +209,7 @@ enet_host_connect (ENetHost * host, const ENetAddress * address, size_t channelC
currentPeer -> channelCount = channelCount; currentPeer -> channelCount = channelCount;
currentPeer -> state = ENET_PEER_STATE_CONNECTING; currentPeer -> state = ENET_PEER_STATE_CONNECTING;
currentPeer -> address = * address; currentPeer -> address = * address;
currentPeer -> connectID = ++ host -> randomSeed; currentPeer -> connectID = enet_host_random (host);
if (host -> outgoingBandwidth == 0) if (host -> outgoingBandwidth == 0)
currentPeer -> windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE; currentPeer -> windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;

1
include/enet/enet.h
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@ -575,6 +575,7 @@ ENET_API void enet_host_channel_limit (ENetHost *, size_t);
ENET_API void enet_host_bandwidth_limit (ENetHost *, enet_uint32, enet_uint32); ENET_API void enet_host_bandwidth_limit (ENetHost *, enet_uint32, enet_uint32);
extern void enet_host_bandwidth_throttle (ENetHost *); extern void enet_host_bandwidth_throttle (ENetHost *);
extern enet_uint32 enet_host_random_seed (void); extern enet_uint32 enet_host_random_seed (void);
extern enet_uint32 enet_host_random (ENetHost *);
ENET_API int enet_peer_send (ENetPeer *, enet_uint8, ENetPacket *); ENET_API int enet_peer_send (ENetPeer *, enet_uint8, ENetPacket *);
ENET_API ENetPacket * enet_peer_receive (ENetPeer *, enet_uint8 * channelID); ENET_API ENetPacket * enet_peer_receive (ENetPeer *, enet_uint8 * channelID);