Bot AI: make bots faster by refactoring bunnyhop algorithm

diff --git a/qcsrc/server/bot/default/cvars.qh b/qcsrc/server/bot/default/cvars.qh
index 55bc9c8f3f1ce218751bf1c57fdf5e6c3b6e86bc..682555238ece51016bad120b685eb095c9655c71 100644 (file)
--- a/qcsrc/server/bot/default/cvars.qh
+++ b/qcsrc/server/bot/default/cvars.qh
@@ -19,10 +19,12 @@ float autocvar_bot_ai_aimskill_order_mix_3th;
 float autocvar_bot_ai_aimskill_order_mix_4th;
 float autocvar_bot_ai_aimskill_order_mix_5th;
 float autocvar_bot_ai_aimskill_think;
-float autocvar_bot_ai_bunnyhop_firstjumpdelay;
 float autocvar_bot_ai_bunnyhop_skilloffset;
-float autocvar_bot_ai_bunnyhop_startdistance;
-float autocvar_bot_ai_bunnyhop_stopdistance;
+float autocvar_bot_ai_bunnyhop_dir_deviation_max;
+float autocvar_bot_ai_bunnyhop_downward_pitch_max;
+float autocvar_bot_ai_bunnyhop_turn_angle_min;
+float autocvar_bot_ai_bunnyhop_turn_angle_max;
+float autocvar_bot_ai_bunnyhop_turn_angle_reduction;
 float autocvar_bot_ai_chooseweaponinterval;
 string autocvar_bot_ai_custom_weapon_priority_close;
 string autocvar_bot_ai_custom_weapon_priority_distances;

diff --git a/qcsrc/server/bot/default/havocbot/havocbot.qc b/qcsrc/server/bot/default/havocbot/havocbot.qc
index 4dff6733ebf83784e39f653a4067f787b4a38a8b..cc8620173c4fdf2d65e82465a208dbe81b759738 100644 (file)
--- a/qcsrc/server/bot/default/havocbot/havocbot.qc
+++ b/qcsrc/server/bot/default/havocbot/havocbot.qc
@@ -198,6 +198,62 @@ void havocbot_ai(entity this)
        }
 }
 
+void havocbot_bunnyhop(entity this, vector dir)
+{
+       bool can_run = false;
+       if (!(this.aistatus & AI_STATUS_ATTACKING) && this.goalcurrent && !IS_PLAYER(this.goalcurrent)
+               && vdist(vec2(this.velocity), >=, autocvar_sv_maxspeed) && !(this.aistatus & AI_STATUS_DANGER_AHEAD)
+               && this.waterlevel <= WATERLEVEL_WETFEET && !IS_DUCKED(this)
+               && IS_ONGROUND(this) && !(this.goalcurrent_prev && (this.goalcurrent_prev.wpflags & WAYPOINTFLAG_JUMP)))
+       {
+               vector vel_angles = vectoangles(this.velocity);
+               vector deviation = vel_angles - vectoangles(dir);
+               while (deviation.y < -180) deviation.y = deviation.y + 360;
+               while (deviation.y > 180) deviation.y = deviation.y - 360;
+               if (fabs(deviation.y) < autocvar_bot_ai_bunnyhop_dir_deviation_max)
+               {
+                       vector gco = get_closer_dest(this.goalcurrent, this.origin);
+                       float vel = vlen(vec2(this.velocity));
+
+                       // with the current physics, jump distance grows linearly with the speed
+                       float jump_distance = 52.661 + 0.606 * vel;
+                       jump_distance += this.origin.z - gco.z; // roughly take into account vertical distance too
+                       if (vdist(vec2(gco - this.origin), >, max(0, jump_distance)))
+                               can_run = true;
+                       else if (!(this.goalcurrent.wpflags & WAYPOINTFLAG_JUMP)
+                               && !(this.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
+                               && this.goalstack01 && !wasfreed(this.goalstack01) && !(this.goalstack01.wpflags & WAYPOINTFLAG_JUMP)
+                               && vdist(vec2(gco - this.goalstack01.origin), >, 70))
+                       {
+                               vector gno = (this.goalstack01.absmin + this.goalstack01.absmax) * 0.5;
+                               vector ang = vectoangles(gco - this.origin);
+                               deviation = vectoangles(gno - gco) - vel_angles;
+                               while (deviation.y < -180) deviation.y = deviation.y + 360;
+                               while (deviation.y > 180) deviation.y = deviation.y - 360;
+
+                               float max_turn_angle = autocvar_bot_ai_bunnyhop_turn_angle_max;
+                               max_turn_angle -= autocvar_bot_ai_bunnyhop_turn_angle_reduction * ((vel - autocvar_sv_maxspeed) / autocvar_sv_maxspeed);
+                               if ((ang.x < 90 || ang.x > 360 - autocvar_bot_ai_bunnyhop_downward_pitch_max)
+                                       && fabs(deviation.y) < max(autocvar_bot_ai_bunnyhop_turn_angle_min, max_turn_angle))
+                               {
+                                       can_run = true;
+                               }
+                       }
+               }
+       }
+
+       if (can_run)
+       {
+               PHYS_INPUT_BUTTON_JUMP(this) = true;
+               this.aistatus |= AI_STATUS_RUNNING;
+       }
+       else
+       {
+               if (IS_ONGROUND(this) || this.waterlevel > WATERLEVEL_WETFEET)
+                       this.aistatus &= ~AI_STATUS_RUNNING;
+       }
+}
+
 void havocbot_keyboard_movement(entity this, vector destorg)
 {
        if(time <= this.havocbot_keyboardtime)
@@ -268,114 +324,6 @@ void havocbot_keyboard_movement(entity this, vector destorg)
        CS(this).movement = CS(this).movement + (keyboard - CS(this).movement) * blend;
 }
 
-void havocbot_bunnyhop(entity this, vector dir)
-{
-       // Don't jump when attacking
-       if(this.aistatus & AI_STATUS_ATTACKING)
-               return;
-
-       if (!this.goalcurrent || IS_PLAYER(this.goalcurrent))
-               return;
-
-       if((this.aistatus & AI_STATUS_RUNNING) && vdist(this.velocity, <, autocvar_sv_maxspeed * 0.75)
-               || (this.aistatus & AI_STATUS_DANGER_AHEAD))
-       {
-               this.aistatus &= ~AI_STATUS_RUNNING;
-               PHYS_INPUT_BUTTON_JUMP(this) = false;
-               this.bot_canruntogoal = 0;
-               this.bot_timelastseengoal = 0;
-               return;
-       }
-
-       if(this.waterlevel > WATERLEVEL_WETFEET || IS_DUCKED(this))
-       {
-               this.aistatus &= ~AI_STATUS_RUNNING;
-               return;
-       }
-
-       if(this.bot_lastseengoal != this.goalcurrent && !(this.aistatus & AI_STATUS_RUNNING))
-       {
-               this.bot_canruntogoal = 0;
-               this.bot_timelastseengoal = 0;
-       }
-
-       // Run only to visible goals
-       if(IS_ONGROUND(this))
-       if(vdist(vec2(this.velocity), >=, autocvar_sv_maxspeed))
-       if(checkpvs(this.origin + this.view_ofs, this.goalcurrent))
-       {
-               this.bot_lastseengoal = this.goalcurrent;
-
-               // seen it before
-               if(this.bot_timelastseengoal)
-               {
-                       vector gco = get_closer_dest(this.goalcurrent, this.origin);
-                       // for a period of time
-                       if(time - this.bot_timelastseengoal > autocvar_bot_ai_bunnyhop_firstjumpdelay)
-                       {
-                               bool checkdistance = true;
-
-                               // don't run if it is too close
-                               if(this.bot_canruntogoal==0)
-                               {
-                                       if(vdist(this.origin - gco, >, autocvar_bot_ai_bunnyhop_startdistance))
-                                               this.bot_canruntogoal = 1;
-                                       else
-                                               this.bot_canruntogoal = -1;
-                               }
-
-                               if(this.bot_canruntogoal != 1)
-                                       return;
-
-                               if(this.aistatus & AI_STATUS_ROAMING)
-                               if(this.goalcurrent.classname == "waypoint")
-                               if (!(this.goalcurrent.wpflags & WAYPOINTFLAG_PERSONAL))
-                               if(fabs(gco.z - this.origin.z) < this.maxs.z - this.mins.z)
-                               if (this.goalstack01 && !wasfreed(this.goalstack01))
-                               if (!(this.goalstack01.wpflags & WAYPOINTFLAG_JUMP))
-                               {
-                                       vector gno = (this.goalstack01.absmin + this.goalstack01.absmax) * 0.5;
-                                       vector deviation = vectoangles(gno - this.origin) - vectoangles(gco - this.origin);
-                                       while (deviation.y < -180) deviation.y = deviation.y + 360;
-                                       while (deviation.y > 180) deviation.y = deviation.y - 360;
-
-                                       if(fabs(deviation.y) < 20)
-                                       if(vlen2(this.origin - gco) < vlen2(this.origin - gno))
-                                       if(fabs(gno.z - gco.z) < this.maxs.z - this.mins.z)
-                                       {
-                                               if(vdist(gco - gno, >, autocvar_bot_ai_bunnyhop_startdistance))
-                                               if(checkpvs(this.origin + this.view_ofs, this.goalstack01))
-                                               {
-                                                       checkdistance = false;
-                                               }
-                                       }
-                               }
-
-                               if(checkdistance)
-                               {
-                                       this.aistatus &= ~AI_STATUS_RUNNING;
-                                       // increase stop distance in case the goal is on a slope or a lower platform
-                                       if(vdist(this.origin - gco, >, autocvar_bot_ai_bunnyhop_stopdistance + (this.origin.z - gco.z)))
-                                               PHYS_INPUT_BUTTON_JUMP(this) = true;
-                               }
-                               else
-                               {
-                                       this.aistatus |= AI_STATUS_RUNNING;
-                                       PHYS_INPUT_BUTTON_JUMP(this) = true;
-                               }
-                       }
-               }
-               else
-               {
-                       this.bot_timelastseengoal = time;
-               }
-       }
-       else
-       {
-               this.bot_timelastseengoal = 0;
-       }
-}
-
 // return true when bot isn't getting closer to the current goal
 bool havocbot_checkgoaldistance(entity this, vector gco)
 {

diff --git a/qcsrc/server/bot/default/havocbot/havocbot.qh b/qcsrc/server/bot/default/havocbot/havocbot.qh
index d1a36a117260027569b229cb291cc78e2cd0a70a..a45e072c75a6b4d062a1ae1449bcb608e6c8dea8 100644 (file)
--- a/qcsrc/server/bot/default/havocbot/havocbot.qh
+++ b/qcsrc/server/bot/default/havocbot/havocbot.qh
@@ -12,8 +12,6 @@
 
 .float havocbot_keyboardtime;
 .float havocbot_ducktime;
-.float bot_timelastseengoal;
-.float bot_canruntogoal;
 .float bot_chooseweapontime;
 .float rocketjumptime;
 .float nextaim;

diff --git a/qcsrc/server/bot/default/navigation.qc b/qcsrc/server/bot/default/navigation.qc
index fad601e35366954d9cc7b8b9116b477b07cb7935..dcf2f304cf3a5c4f7d28a05eefa25f31a1cd14cc 100644 (file)
--- a/qcsrc/server/bot/default/navigation.qc
+++ b/qcsrc/server/bot/default/navigation.qc
@@ -1716,11 +1716,15 @@ int navigation_poptouchedgoals(entity this)
        }
 
        // Loose goal touching check when running
-       if(this.aistatus & AI_STATUS_RUNNING)
-       if(this.goalcurrent.classname=="waypoint")
-       if(vdist(vec2(this.velocity), >=, autocvar_sv_maxspeed)) // if -really- running
-       {
-               if(vdist(this.origin - this.goalcurrent.origin, <, 150))
+       // check goalstack01 to make sure waypoint isn't the final goal
+       if(this.aistatus & AI_STATUS_RUNNING && this.goalcurrent.classname == "waypoint" && !(this.goalcurrent.wpflags & WAYPOINTFLAG_JUMP)
+               && this.goalstack01 && !wasfreed(this.goalstack01) && vdist(vec2(this.velocity), >=, autocvar_sv_maxspeed))
+       {
+               vector gco = this.goalcurrent.origin;
+               vector gno = this.goalstack01.origin;
+               float min_dist = 100;
+               if(vdist(this.origin - gco, <, min_dist)
+                       || (vdist(this.origin + eZ * 0.5 * min_dist - gco, <, min_dist) && vlen2(this.origin - gno) < vlen2(gco - gno)))
                {
                        traceline(this.origin + this.view_ofs , this.goalcurrent.origin, true, NULL);
                        if(trace_fraction==1)
@@ -1784,7 +1788,8 @@ entity navigation_get_really_close_waypoint(entity this)
                wp = this.goalcurrent_prev;
        if(!wp)
                return NULL;
-       if(wp != this.goalcurrent_prev && vdist(wp.origin - this.origin, >, 50))
+       float min_dist = ((this.aistatus & AI_STATUS_RUNNING) ? 100 : 50);
+       if(wp != this.goalcurrent_prev && vdist(wp.origin - this.origin, >, min_dist))
        {
                wp = this.goalcurrent_prev;
                if(!wp)
@@ -1796,12 +1801,12 @@ entity navigation_get_really_close_waypoint(entity this)
                if(!wp)
                        return NULL;
        }
-       if(vdist(wp.origin - this.origin, >, 50))
+       if(vdist(wp.origin - this.origin, >, min_dist))
        {
                wp = NULL;
                IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_JUMP)),
                {
-                       if(vdist(it.origin - this.origin, <, 50))
+                       if(vdist(it.origin - this.origin, <, min_dist))
                        {
                                wp = it;
                                break;

diff --git a/xonotic-server.cfg b/xonotic-server.cfg
index 87ab27076a7fd4890686383f52029a0986e09edd..a763b5d71eebb0df17721dffc6e40bb1e88284d7 100644 (file)
--- a/xonotic-server.cfg
+++ b/xonotic-server.cfg
@@ -152,9 +152,11 @@ set bot_ai_weapon_combo_threshold 0.4 "Try to make a combo N seconds after the l
 set bot_ai_friends_aware_pickup_radius "500" "Bots will not pickup items if a team mate is this distance near the item"
 set bot_ai_ignoregoal_timeout 3 "Ignore goals making bots to get stuck in front of a wall for N seconds"
 set bot_ai_bunnyhop_skilloffset 7 "Bots with skill equal or greater than this value will perform the \"bunnyhop\" technique"
-set bot_ai_bunnyhop_startdistance 200 "Run to goals located further than this distance"
-set bot_ai_bunnyhop_stopdistance 300 "Stop jumping after reaching this distance to the goal"
-set bot_ai_bunnyhop_firstjumpdelay 0.2 "Start running to the goal only if it was seen for more than N seconds"
+set bot_ai_bunnyhop_dir_deviation_max 20 "bunnyhop if speed - direction deviation is <= this amount"
+set bot_ai_bunnyhop_downward_pitch_max 30 "bunnyhop if downard pitch towards the next waypoint is <= this amount"
+set bot_ai_bunnyhop_turn_angle_max 80 "bunnyhop if next turn angle is <= this amount at walk speed (sv_maxspeed)"
+set bot_ai_bunnyhop_turn_angle_min 4 "bunnyhop regardless of speed if next turn angle is <= this amount"
+set bot_ai_bunnyhop_turn_angle_reduction 40 "linearly reduce max turn angle by this amount when speed increases by sv_maxspeed"
 set bot_god 0 "god mode for bots"
 set bot_ai_navigation_jetpack 0 "Enable bots to navigate maps using the jetpack"
 set bot_ai_navigation_jetpack_mindistance 3500 "Bots will try fly to objects located farther than this distance"