]> de.git.xonotic.org Git - xonotic/xonotic-data.pk3dir.git/blobdiff - qcsrc/server/bot/default/havocbot/havocbot.qc
Merge branch 'master' into terencehill/bot_ai
[xonotic/xonotic-data.pk3dir.git] / qcsrc / server / bot / default / havocbot / havocbot.qc
index fcf539f568648574c13394bdb1d5f811ecbd7b24..788ee1bc6e17917dee0478cdc85bb1bfdc07d2c3 100644 (file)
@@ -18,8 +18,8 @@
 #include <common/items/_mod.qh>
 #include <common/wepent.qh>
 
-#include <common/triggers/teleporters.qh>
-#include <common/triggers/trigger/jumppads.qh>
+#include <common/mapobjects/teleporters.qh>
+#include <common/mapobjects/trigger/jumppads.qh>
 
 #include <lib/warpzone/common.qh>
 
@@ -104,12 +104,15 @@ void havocbot_ai(entity this)
        }
        havocbot_aim(this);
        lag_update(this);
+
+       this.bot_aimdir_executed = false;
+
        if (this.bot_aimtarg)
        {
                this.aistatus |= AI_STATUS_ATTACKING;
                this.aistatus &= ~AI_STATUS_ROAMING;
 
-               if(this.weapons)
+               if(STAT(WEAPONS, this))
                {
                        if (autocvar_bot_nofire || IS_INDEPENDENT_PLAYER(this))
                        {
@@ -140,48 +143,17 @@ void havocbot_ai(entity this)
        {
                this.aistatus |= AI_STATUS_ROAMING;
                this.aistatus &= ~AI_STATUS_ATTACKING;
-
-               vector now, next;
-               float aimdistance,skillblend,distanceblend,blend;
-
-               vector v = get_closer_dest(this.goalcurrent, this.origin);
-               if(this.goalcurrent.wpisbox)
-               {
-                       // avoid a glitch when bot is teleported but teleport waypoint isn't removed yet
-                       if(this.goalstack02 && this.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT
-                       && this.lastteleporttime > 0 && time - this.lastteleporttime < 0.15)
-                               v = (this.goalstack02.absmin + this.goalstack02.absmax) * 0.5;
-                       // aim to teleport origin if bot is inside teleport waypoint but hasn't touched the real teleport yet
-                       else if(boxesoverlap(this.goalcurrent.absmin, this.goalcurrent.absmax, this.origin, this.origin))
-                               v = this.goalcurrent.origin;
-               }
-               next = now = v - (this.origin + this.view_ofs);
-               aimdistance = vlen(now);
-
-               //dprint(this.goalstack01.classname,etos(this.goalstack01),"\n");
-               if(
-                       this.goalstack01 != this && this.goalstack01 && !wasfreed(this.goalstack01) && ((this.aistatus & AI_STATUS_RUNNING) == 0) &&
-                       !(this.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
-               )
-                       next = ((this.goalstack01.absmin + this.goalstack01.absmax) * 0.5) - (this.origin + this.view_ofs);
-
-               skillblend=bound(0,(skill+this.bot_moveskill-2.5)*0.5,1); //lower skill player can't preturn
-               distanceblend=bound(0,aimdistance/autocvar_bot_ai_keyboard_distance,1);
-               blend = skillblend * (1-distanceblend);
-               //v = (now * (distanceblend) + next * (1-distanceblend)) * (skillblend) + now * (1-skillblend);
-               //v = now * (distanceblend) * (skillblend) + next * (1-distanceblend) * (skillblend) + now * (1-skillblend);
-               //v = now * ((1-skillblend) + (distanceblend) * (skillblend)) + next * (1-distanceblend) * (skillblend);
-               v = now + blend * (next - now);
-               //dprint(etos(this), " ");
-               //dprint(vtos(now), ":", vtos(next), "=", vtos(v), " (blend ", ftos(blend), ")\n");
-               //v = now * (distanceblend) + next * (1-distanceblend);
-               if (this.waterlevel < WATERLEVEL_SWIMMING)
-                       v.z = 0;
-               //dprint("walk at:", vtos(v), "\n");
-               //te_lightning2(NULL, this.origin, this.goalcurrent.origin);
-               bot_aimdir(this, v, -1);
        }
+
        havocbot_movetogoal(this);
+       if (!this.bot_aimdir_executed && this.goalcurrent)
+       {
+               // Heading
+               vector dir = get_closer_dest(this.goalcurrent, this.origin);
+               dir -= this.origin + this.view_ofs;
+               dir.z = 0;
+               bot_aimdir(this, dir, -1);
+       }
 
        // if the bot is not attacking, consider reloading weapons
        if (!(this.aistatus & AI_STATUS_ATTACKING))
@@ -204,7 +176,7 @@ void havocbot_ai(entity this)
                        if(this.(weaponentity).clip_load >= 0) // only if we're not reloading a weapon already
                        {
                                FOREACH(Weapons, it != WEP_Null, {
-                                       if((this.weapons & (it.m_wepset)) && (it.spawnflags & WEP_FLAG_RELOADABLE) && (this.(weaponentity).weapon_load[it.m_id] < it.reloading_ammo))
+                                       if((STAT(WEAPONS, this) & (it.m_wepset)) && (it.spawnflags & WEP_FLAG_RELOADABLE) && (this.(weaponentity).weapon_load[it.m_id] < it.reloading_ammo))
                                        {
                                                this.(weaponentity).m_switchweapon = it;
                                                break;
@@ -453,6 +425,34 @@ bool havocbot_checkgoaldistance(entity this, vector gco)
        return false;
 }
 
+entity havocbot_select_an_item_of_group(entity this, int gr)
+{
+       entity selected = NULL;
+       float selected_dist2 = 0;
+       // select farthest item of this group from bot's position
+       IL_EACH(g_items, it.item_group == gr && it.solid,
+       {
+               float dist2 = vlen2(this.origin - it.origin);
+               if (dist2 < 600 ** 2 && dist2 > selected_dist2)
+               {
+                       selected = it;
+                       selected_dist2 = vlen2(this.origin - selected.origin);
+               }
+       });
+
+       if (!selected)
+               return NULL;
+
+       set_tracewalk_dest(selected, this.origin, false);
+       if (!tracewalk(this, this.origin, STAT(PL_MIN, this), STAT(PL_MAX, this),
+               tracewalk_dest, tracewalk_dest_height, bot_navigation_movemode))
+       {
+               return NULL;
+       }
+
+       return selected;
+}
+
 void havocbot_movetogoal(entity this)
 {
        vector diff;
@@ -460,8 +460,8 @@ void havocbot_movetogoal(entity this)
        vector flatdir;
        vector evadeobstacle;
        vector evadelava;
+       float dodge_enemy_factor = 1;
        float maxspeed;
-       vector gco;
        //float dist;
        vector dodge;
        //if (this.goalentity)
@@ -540,8 +540,8 @@ void havocbot_movetogoal(entity this)
                if(this.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
                {
                        this.aistatus |= AI_STATUS_OUT_JUMPPAD;
-                       navigation_poptouchedgoals(this);
-                       return;
+                       if(navigation_poptouchedgoals(this))
+                               return;
                }
                else if(this.aistatus & AI_STATUS_OUT_JUMPPAD)
                {
@@ -588,7 +588,7 @@ void havocbot_movetogoal(entity this)
                                                navigation_pushroute(this, jumppad_wp.wp00);
                                        }
                                }
-                               gco = (this.goalcurrent.absmin + this.goalcurrent.absmax) * 0.5;
+                               vector gco = (this.goalcurrent.absmin + this.goalcurrent.absmax) * 0.5;
                                if (this.origin.z > gco.z && vdist(vec2(this.velocity), <, autocvar_sv_maxspeed))
                                        this.aistatus &= ~AI_STATUS_OUT_JUMPPAD;
                                else if(havocbot_checkgoaldistance(this, gco))
@@ -732,12 +732,17 @@ void havocbot_movetogoal(entity this)
 
 
        bool locked_goal = false;
-       if(this.goalentity && wasfreed(this.goalentity))
+       if((this.goalentity && wasfreed(this.goalentity))
+               || (this.goalcurrent == this.goalentity && this.goalentity.tag_entity))
        {
                navigation_clearroute(this);
                navigation_goalrating_timeout_force(this);
                return;
        }
+       else if(this.goalentity.tag_entity)
+       {
+               navigation_goalrating_timeout_expire(this, 2);
+       }
        else if(this.goalentity.bot_pickup)
        {
                if(this.goalentity.bot_pickup_respawning)
@@ -767,12 +772,21 @@ void havocbot_movetogoal(entity this)
        if (this.goalcurrent == this.goalentity && this.goalentity_lock_timeout > time)
                locked_goal = true;
 
-       navigation_shortenpath(this);
+       if (navigation_shortenpath(this))
+       {
+               if (vdist(this.origin - this.goalcurrent_prev.origin, <, 50)
+                       && navigation_goalrating_timeout_can_be_anticipated(this))
+                       navigation_goalrating_timeout_force(this);
+       }
 
+       bool goalcurrent_can_be_removed = false;
        if (IS_MOVABLE(this.goalcurrent))
        {
-               if (IS_DEAD(this.goalcurrent))
+               // if is movable  =>  not frozen
+               if (IS_DEAD(this.goalcurrent) || (this.goalentity_shouldbefrozen && this.goalentity == this.goalcurrent))
                {
+                       goalcurrent_can_be_removed = true;
+                       // don't remove if not visible
                        if (checkpvs(this.origin + this.view_ofs, this.goalcurrent))
                        {
                                navigation_goalrating_timeout_force(this);
@@ -796,16 +810,34 @@ void havocbot_movetogoal(entity this)
                // optimize path finding by anticipating goalrating when bot is near a waypoint;
                // in this case path finding can start directly from a waypoint instead of
                // looking for all the reachable waypoints up to a certain distance
-               if (navigation_poptouchedgoals(this) && this.goalcurrent)
+               if (navigation_poptouchedgoals(this))
                {
-                       if (IS_MOVABLE(this.goalcurrent) && IS_DEAD(this.goalcurrent))
+                       if (this.goalcurrent)
                        {
-                               // remove even if not visible
-                               navigation_goalrating_timeout_force(this);
-                               return;
+                               if (goalcurrent_can_be_removed)
+                               {
+                                       // remove even if not visible
+                                       navigation_goalrating_timeout_force(this);
+                                       return;
+                               }
+                               else if (navigation_goalrating_timeout_can_be_anticipated(this))
+                                       navigation_goalrating_timeout_force(this);
+                       }
+                       else
+                       {
+                               entity old_goal = this.goalcurrent_prev;
+                               if (old_goal.item_group && this.item_group != old_goal.item_group)
+                               {
+                                       // Avoid multiple costly calls of path finding code that selects one of the closest
+                                       // item of the group by telling the bot to head directly to the farthest item.
+                                       // Next time we let the bot select a goal as usual which can be another item
+                                       // of this group (the closest one) and so on
+                                       this.item_group = old_goal.item_group;
+                                       entity new_goal = havocbot_select_an_item_of_group(this, old_goal.item_group);
+                                       if (new_goal)
+                                               navigation_pushroute(this, new_goal);
+                               }
                        }
-                       else if (navigation_goalrating_timeout_can_be_anticipated(this))
-                               navigation_goalrating_timeout_force(this);
                }
        }
 
@@ -822,11 +854,14 @@ void havocbot_movetogoal(entity this)
 
        bool bunnyhop_forbidden = false;
        vector destorg = get_closer_dest(this.goalcurrent, this.origin);
-
-       // in case bot ends up inside the teleport waypoint without touching
-       // the teleport itself, head to the teleport origin
-       if(this.goalcurrent.wpisbox && boxesoverlap(this.goalcurrent.absmin, this.goalcurrent.absmax, this.origin + eZ * this.mins.z, this.origin + eZ * this.maxs.z))
+       if (this.jumppadcount && this.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
+       {
+               // if bot used the jumppad, push towards jumppad origin until jumppad waypoint gets removed
+               destorg = this.goalcurrent.origin;
+       }
+       else if (this.goalcurrent.wpisbox && boxesoverlap(this.goalcurrent.absmin, this.goalcurrent.absmax, this.origin + eZ * this.mins.z, this.origin + eZ * this.maxs.z))
        {
+               // if bot is inside the teleport waypoint, head to teleport origin until teleport gets used
                bunnyhop_forbidden = true;
                destorg = this.goalcurrent.origin;
                if(destorg.z > this.origin.z)
@@ -835,18 +870,17 @@ void havocbot_movetogoal(entity this)
 
        diff = destorg - this.origin;
 
-       if (fabs(diff.x) < 10 && fabs(diff.y) < 10
-               && this.goalcurrent == this.goalentity && time < this.goalentity_lock_timeout)
+       // 1. stop if too close to target player (even if frozen)
+       // 2. stop if the locked goal has been reached
+       if ((IS_PLAYER(this.goalcurrent) && vdist(diff, <, 80))
+               || (this.goalcurrent == this.goalentity && time < this.goalentity_lock_timeout && vdist(diff, <, 10)))
        {
                destorg = this.origin;
-               diff.x = 0;
-               diff.y = 0;
+               diff = '0 0 0';
        }
 
        dir = normalize(diff);
-       flatdir = diff;flatdir.z = 0;
-       flatdir = normalize(flatdir);
-       gco = (this.goalcurrent.absmin + this.goalcurrent.absmax) * 0.5;
+       flatdir = (diff.z == 0) ? dir : normalize(vec2(diff));
 
        //if (this.bot_dodgevector_time < time)
        {
@@ -863,13 +897,13 @@ void havocbot_movetogoal(entity this)
                        {
                                if(!this.goalcurrent)
                                        this.aistatus |= AI_STATUS_OUT_WATER;
-                               else if(gco.z > this.origin.z)
+                               else if(destorg.z > this.origin.z)
                                        PHYS_INPUT_BUTTON_JUMP(this) = true;
                        }
                        else
                        {
                                dir = flatdir;
-                               if(this.velocity.z >= 0 && !(this.watertype == CONTENT_WATER && gco.z < this.origin.z) &&
+                               if(this.velocity.z >= 0 && !(this.watertype == CONTENT_WATER && destorg.z < this.origin.z) &&
                                        ( !(this.waterlevel == WATERLEVEL_WETFEET && this.watertype == CONTENT_WATER) || this.aistatus & AI_STATUS_OUT_WATER))
                                        PHYS_INPUT_BUTTON_JUMP(this) = true;
                                else
@@ -886,16 +920,20 @@ void havocbot_movetogoal(entity this)
                        // jump if going toward an obstacle that doesn't look like stairs we
                        // can walk up directly
                        vector deviation = '0 0 0';
-                       if (this.velocity)
+                       float current_speed = vlen(vec2(this.velocity));
+                       if (current_speed < maxspeed * 0.2)
+                               current_speed = maxspeed * 0.2;
+                       else
                        {
                                deviation = vectoangles(diff) - vectoangles(this.velocity);
                                while (deviation.y < -180) deviation.y += 360;
                                while (deviation.y > 180) deviation.y -= 360;
                        }
+                       float turning = false;
                        vector flat_diff = vec2(diff);
-                       offset = max(32, vlen(vec2(this.velocity)) * cos(deviation.y * DEG2RAD) * 0.2) * flatdir;
+                       offset = max(32, current_speed * cos(deviation.y * DEG2RAD) * 0.3) * flatdir;
                        vector actual_destorg = this.origin + offset;
-                       if (!this.goalstack01 || this.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
+                       if (!this.goalstack01 || this.goalcurrent.wpflags & (WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_LADDER))
                        {
                                if (vlen2(flat_diff) < vlen2(offset))
                                {
@@ -912,31 +950,60 @@ void havocbot_movetogoal(entity this)
                        {
                                vector next_goal_org = (this.goalstack01.absmin + this.goalstack01.absmax) * 0.5;
                                vector next_dir = normalize(vec2(next_goal_org - destorg));
-                               float next_dist = vlen(vec2(this.origin + offset - destorg));
-                               actual_destorg = vec2(destorg) + next_dist * next_dir;
+                               float dist = vlen(vec2(this.origin + offset - destorg));
+                               // if current and next goal are close to each other make sure
+                               // actual_destorg isn't set beyond next_goal_org
+                               if (dist ** 2 > vlen2(vec2(next_goal_org - destorg)))
+                                       actual_destorg = next_goal_org;
+                               else
+                                       actual_destorg = vec2(destorg) + dist * next_dir;
                                actual_destorg.z = this.origin.z;
+                               turning = true;
                        }
 
-                       tracebox(this.origin, this.mins, this.maxs, actual_destorg, false, this);
-                       if (trace_fraction < 1)
-                       if (trace_plane_normal.z < 0.7)
+                       LABEL(jump_check);
+                       dir = flatdir = normalize(actual_destorg - this.origin);
+
+                       if (turning || fabs(deviation.y) < 50) // don't even try to jump if deviation is too high
                        {
-                               s = trace_fraction;
-                               tracebox(this.origin + stepheightvec, this.mins, this.maxs, actual_destorg + stepheightvec, false, this);
-                               if (trace_fraction < s + 0.01)
-                               if (trace_plane_normal.z < 0.7)
+                               tracebox(this.origin, this.mins, this.maxs, actual_destorg, false, this);
+                               if (trace_fraction < 1 && trace_plane_normal.z < 0.7)
                                {
                                        s = trace_fraction;
-                                       tracebox(this.origin + jumpstepheightvec, this.mins, this.maxs, actual_destorg + jumpstepheightvec, false, this);
-                                       if (trace_fraction > s)
-                                               PHYS_INPUT_BUTTON_JUMP(this) = true;
+                                       tracebox(this.origin + stepheightvec, this.mins, this.maxs, actual_destorg + stepheightvec, false, this);
+                                       if (trace_fraction < s + 0.01 && trace_plane_normal.z < 0.7)
+                                       {
+                                               // found an obstacle
+                                               if (turning && fabs(deviation.y) > 5)
+                                               {
+                                                       // check if the obstacle is still there without turning
+                                                       actual_destorg = destorg;
+                                                       turning = false;
+                                                       this.bot_tracewalk_time = time + 0.25;
+                                                       goto jump_check;
+                                               }
+                                               s = trace_fraction;
+                                               // don't artificially reduce max jump height in real-time
+                                               // (jumpstepheightvec is reduced a bit to make the jumps easy in tracewalk)
+                                               vector jump_height = (IS_ONGROUND(this)) ? stepheightvec + jumpheight_vec : jumpstepheightvec;
+                                               tracebox(this.origin + jump_height, this.mins, this.maxs, actual_destorg + jump_height, false, this);
+                                               if (trace_fraction > s)
+                                                       PHYS_INPUT_BUTTON_JUMP(this) = true;
+                                               else
+                                               {
+                                                       jump_height = stepheightvec + jumpheight_vec / 2;
+                                                       tracebox(this.origin + jump_height, this.mins, this.maxs, actual_destorg + jump_height, false, this);
+                                                       if (trace_fraction > s)
+                                                               PHYS_INPUT_BUTTON_JUMP(this) = true;
+                                               }
+                                       }
                                }
                        }
 
                        // if bot for some reason doesn't get close to the current goal find another one
                        if(!this.jumppadcount && !IS_PLAYER(this.goalcurrent))
                        if(!(locked_goal && this.goalcurrent_distance_z < 50 && this.goalcurrent_distance_2d < 50))
-                       if(havocbot_checkgoaldistance(this, gco))
+                       if(havocbot_checkgoaldistance(this, destorg))
                        {
                                if(this.goalcurrent_distance_time < 0) // can't get close for the second time
                                {
@@ -993,7 +1060,7 @@ void havocbot_movetogoal(entity this)
                                                tracebox(dst_ahead, this.mins, this.maxs, dst_down, true, this);
                                                if (tracebox_hits_trigger_hurt(dst_ahead, this.mins, this.maxs, trace_endpos))
                                                {
-                                                       if (gco.z > this.origin.z + jumpstepheightvec.z)
+                                                       if (destorg.z > this.origin.z + jumpstepheightvec.z)
                                                        {
                                                                // the goal is probably on an upper platform, assume bot can't get there
                                                                unreachable = true;
@@ -1016,6 +1083,18 @@ void havocbot_movetogoal(entity this)
                                if(IS_PLAYER(this.goalcurrent))
                                        unreachable = true;
                        }
+
+                       // slow down if bot is in the air and goal is under it
+                       if (!this.goalcurrent.wphardwired
+                               && vdist(flat_diff, <, 250) && this.origin.z - destorg.z > 120
+                               && (!IS_ONGROUND(this) || vdist(vec2(this.velocity), >, maxspeed * 0.3)))
+                       {
+                               // tracebox wouldn't work when bot is still on the ledge
+                               traceline(this.origin, this.origin - '0 0 200', true, this);
+                               if (this.origin.z - trace_endpos.z > 120)
+                                       evadeobstacle = normalize(this.velocity) * -1;
+                       }
+
                        if(unreachable)
                        {
                                navigation_clearroute(this);
@@ -1026,31 +1105,59 @@ void havocbot_movetogoal(entity this)
                }
 
                dodge = havocbot_dodge(this);
-               dodge = dodge * bound(0,0.5+(skill+this.bot_dodgeskill)*0.1,1);
+               if (dodge)
+                       dodge *= bound(0, 0.5 + (skill + this.bot_dodgeskill) * 0.1, 1);
+               dodge += evadeobstacle + evadelava;
                evadelava = evadelava * bound(1,3-(skill+this.bot_dodgeskill),3); //Noobs fear lava a lot and take more distance from it
-               traceline(this.origin, ( ( this.enemy.absmin + this.enemy.absmax ) * 0.5 ), true, NULL);
-               if(IS_PLAYER(trace_ent))
-                       dir = dir * bound(0,(skill+this.bot_dodgeskill)/7,1);
-
-               dir = normalize(dir + dodge + evadeobstacle + evadelava);
+               if (this.enemy)
+               {
+                       traceline(this.origin, (this.enemy.absmin + this.enemy.absmax) * 0.5, true, NULL);
+                       if (IS_PLAYER(trace_ent))
+                               dodge_enemy_factor = bound(0, (skill + this.bot_dodgeskill) / 7, 1);
+               }
        //      this.bot_dodgevector = dir;
        //      this.bot_dodgevector_jumpbutton = PHYS_INPUT_BUTTON_JUMP(this);
        }
 
+       float ladder_zdir = 0;
        if(time < this.ladder_time)
        {
                if(this.goalcurrent.origin.z + this.goalcurrent.mins.z > this.origin.z + this.mins.z)
                {
                        if(this.origin.z + this.mins.z  < this.ladder_entity.origin.z + this.ladder_entity.maxs.z)
-                               dir.z = 1;
+                               ladder_zdir = 1;
                }
                else
                {
                        if(this.origin.z + this.mins.z  > this.ladder_entity.origin.z + this.ladder_entity.mins.z)
-                               dir.z = -1;
+                               ladder_zdir = -1;
+               }
+               if (ladder_zdir)
+               {
+                       dir.z = ladder_zdir * 1.3;
+                       dir = normalize(dir);
                }
        }
 
+       if (this.goalcurrent.wpisbox
+               && boxesoverlap(this.goalcurrent.absmin, this.goalcurrent.absmax, this.origin, this.origin))
+       {
+               // bot is inside teleport waypoint but hasn't touched the real teleport yet
+               // head to teleport origin
+               dir = (this.goalcurrent.origin - this.origin);
+               dir.z = 0;
+               dir = normalize(dir);
+       }
+
+       if (!this.bot_aimdir_executed)
+               bot_aimdir(this, dir, -1);
+
+       if (!ladder_zdir)
+       {
+               dir *= dodge_enemy_factor;
+               dir = normalize(dir + dodge);
+       }
+
        //dir = this.bot_dodgevector;
        //if (this.bot_dodgevector_jumpbutton)
        //      PHYS_INPUT_BUTTON_JUMP(this) = true;
@@ -1189,7 +1296,7 @@ LABEL(scan_targets)
 
                // I want to do a second scan if no enemy was found or I don't have weapons
                // TODO: Perform the scan when using the rifle (requires changes on the rifle code)
-               if(best || this.weapons) // || this.weapon == WEP_RIFLE.m_id
+               if(best || STAT(WEAPONS, this)) // || this.weapon == WEP_RIFLE.m_id
                        break;
                if(scan_transparent)
                        break;
@@ -1404,15 +1511,19 @@ float havocbot_moveto(entity this, vector pos)
                if(autocvar_bot_debug_goalstack)
                        debuggoalstack(this);
 
-               // Heading
-               vector dir = get_closer_dest(this.goalcurrent, this.origin);
-               dir = dir - (this.origin + this.view_ofs);
-               dir.z = 0;
-               bot_aimdir(this, dir, -1);
 
                // Go!
                havocbot_movetogoal(this);
 
+               if (!this.bot_aimdir_executed && this.goalcurrent)
+               {
+                       // Heading
+                       vector dir = get_closer_dest(this.goalcurrent, this.origin);
+                       dir -= this.origin + this.view_ofs;
+                       dir.z = 0;
+                       bot_aimdir(this, dir, -1);
+               }
+
                if(this.aistatus & AI_STATUS_WAYPOINT_PERSONAL_REACHED)
                {
                        // Step 5: Waypoint reached