nzp-team/quakec
0
0
Fork 0
mirror of https://github.com/nzp-team/quakec.git synced 2025-01-19 07:40:51 +00:00
Code Issues Projects Releases Packages Wiki Activity

SERVER: Further improve TryWalkToEnemy to avoid corner walking

Browse source
This commit is contained in:
cypress 2023-11-28 13:51:05 -05:00
parent d80a31b9ee
commit f3354abc57
1 changed files with 61 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

85
source/server/ai/ai_core.qc
View file

@ -534,26 +534,35 @@ void(float dist) Window_Hop =
float() TryWalkToEnemy =
{
// TryWalkToEnemy attempts to see if a Zombie can ignore waypoints
// and just charge straight towards its enemy. Originally, this was
// pretty broken and limited. If it could draw a line from its origin
// to the player's, it'd walk right towards it. This was an issue if
// only the zombies's torso was exposed but not the head (meaning it
// could not fit in a walkable space). It now performs both a head
// trace and a foot trace. It also makes sure the Z (up/down) axis
// between the two entities are in close proximity to avoid neglecting
// staircases. -- cypress (30 Oct 2023)
float TraceResultHead, TraceResultFeet;
TraceResultHead = tracemove(self.origin + '0 0 32',VEC_HULL_MIN,VEC_HULL_MAX,self.enemy.origin,TRUE,self);
TraceResultFeet = tracemove(self.origin - '0 0 24',VEC_HULL_MIN,VEC_HULL_MAX,self.enemy.origin,TRUE,self);
#ifdef FTE
// Early out hack for FTE -- if there's tons of z-diff, GTFO!
float z_axis_diff = fabs(self.origin_z - self.enemy.origin_z);
if(TraceResultHead == 1 && TraceResultFeet == 1 && z_axis_diff <= 30) {
if (z_axis_diff >= 30)
return 0;
#endif // FTE
// This has been a headache...
// TryWalkToEnemy is a system that attempts to ignore waypoints from a
// certain distance to simulate proper player-targeting. It does this
// using the custom builtin tracemove, which calls SV_Move to determine
// if it's possible for the enemy to walk directly to the target. This
// is problematic, however -- in that FTE does not feature this builtin
// since it's non-standard and was written by blubs. This means there
// needs to be improvisation, and as a result there is disparity here.
// See the custom tracemove() function for details on that.
// -- cypress (28 Nov 2023)
float TraceResult = tracemove(self.origin, VEC_HULL_MIN, VEC_HULL_MAX, self.enemy.origin, TRUE, self);
if (TraceResult == 1) {
self.goalentity = self.enemy;
self.chase_time = time + 7;
return 1;
} else {
return 0;
}
} else {
return 0;
}
};
void() PathfindToEnemy =
@ -643,16 +652,44 @@ void() NextPathfindToEnemy {
#ifdef FTE
//
// FTE's custom "tracemove" -- no way in hell I'm reimplementing SV_Move
// in QuakeC. So this is just a really bad traceline hack. We can't even
// use tracebox since that's limited by BSP hulls,
//
inline float(vector start, vector min, vector max, vector end, float nomonsters, entity forent) tracemove
{
//was tracebox
traceline(start,end,nomonsters,forent);
if(trace_ent == forent || trace_endpos == end) {
return 1;
} else {
return 0;
}
makevectors(forent.angles);
// Top left of the box
traceline(start + '0 0 32' + v_right * -18, end, nomonsters, forent);
// Results Check
if (trace_ent != forent && trace_endpos != end)
return 0;
// Top right of the box
traceline(start + '0 0 32' + v_right * 18, end, nomonsters, forent);
// Results Check
if (trace_ent != forent && trace_endpos != end)
return 0;
// Bottom left of the box
traceline(start - '0 0 24' + v_right * -18, end, nomonsters, forent);
// Results Check
if (trace_ent != forent && trace_endpos != end)
return 0;
// Bottom right of the box
traceline(start - '0 0 24' + v_right * 18, end, nomonsters, forent);
// Results Check
if (trace_ent != forent && trace_endpos != end)
return 0;
return 1;
}
#endif // FTE