Prop Footsteps

For player footsteps, Valve used MASK_PLAYERSOLID_BRUSHONLY rather than MASK_PLAYERSOLID. This difference made it so only the static world would have dynamic footsteps. The following precedure will show how to fix this issue.

Note:This will not make any difference if PlayStepSound is overridden by the player entity (i.e. HL2MP).

src\cl_dll\c_baseplayer.cpp

Shift Start Up

// Straight down end.z -= 64;

→

// Straight down start.z += 1; end.z -= 64;

Change Trace Mask

UTIL_TraceRay( ray, MASK_PLAYERSOLID_BRUSHONLY, this, COLLISION_GROUP_PLAYER_MOVEMENT, &trace );

↓

UTIL_TraceRay( ray, MASK_PLAYERSOLID, this, COLLISION_GROUP_PLAYER_MOVEMENT, &trace );

src\game_shared\gamemovement.cpp

Shift Start Up

// Straight down end[2] -= 64;

→

// Straight down start[2] += 1; end[2] -= 64;

Change Trace Mask

TracePlayerBBox( start, end, MASK_PLAYERSOLID_BRUSHONLY, COLLISION_GROUP_PLAYER_MOVEMENT, trace );

↓

TracePlayerBBox( start, end, MASK_PLAYERSOLID, COLLISION_GROUP_PLAYER_MOVEMENT, trace );