Update AI functions #333
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,34 @@ | ||
| /* ---------------------------------------------------------------------------- | ||
| Function: CBA_fnc_clearWaypoints | ||
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| Description: | ||
| A function used to correctly clear all waypoints from a group. | ||
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| Parameters: | ||
| - Group (Group or Object) | ||
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| Example: | ||
| (begin example) | ||
| [group player] call CBA_fnc_clearWaypoints | ||
| (end) | ||
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| Returns: | ||
| None | ||
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| Author: | ||
| SilentSpike | ||
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| ---------------------------------------------------------------------------- */ | ||
| #include "script_component.hpp" | ||
| params [["_group", grpNull, [grpNull,objNull]]]; | ||
| _group = _group call CBA_fnc_getGroup; | ||
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| private _waypoints = waypoints _group; | ||
| { | ||
| // Waypoint index changes with each deletion, so don't delete _x | ||
| deleteWaypoint [_group,0]; | ||
| } forEach _waypoints; | ||
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| // Create a self-deleting waypoint at the leader position to halt all planned movement (based on old waypoints) | ||
| private _wp = _group addWaypoint [getPosATL (leader _group), 0]; | ||
| _wp setWaypointStatements ["true", "deleteWaypoint [group this,currentWaypoint (group this)]"]; |
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| Original file line number | Diff line number | Diff line change |
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@@ -25,78 +25,98 @@ Returns: | |
| Nil | ||
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| Author: | ||
| Rommel, SilentSpike | ||
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| ---------------------------------------------------------------------------- */ | ||
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| params ["_group", ["_position",[]], ["_radius",50,[0]], ["_threshold",2,[0]], ["_patrol",true,[true]]]; | ||
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| _group = _group call CBA_fnc_getGroup; | ||
| if !(local _group) exitWith {}; // Don't create waypoints on each machine | ||
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| _position = [_position,_group] select (_position isEqualTo []); | ||
| _position = _position call CBA_fnc_getPos; | ||
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| [_group] call CBA_fnc_clearWaypoints; | ||
| _group enableAttack false; | ||
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| private _statics = _position nearObjects ["StaticWeapon", _radius]; | ||
| private _buildings = _position nearObjects ["Building", _radius]; | ||
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| // Filter out occupied statics | ||
| [_statics,{(_x emptyPositions "Gunner") > 0},true] call CBA_fnc_filter; | ||
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| // Filter out buildings below the size threshold (and store positions for later use) | ||
| { | ||
| if ((_x buildingPos _threshold) isEqualto [0,0,0]) then { | ||
| _buildings set [_forEachIndex,nil]; | ||
| } else { | ||
| private _positions = _x buildingPos -1; | ||
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| if (isNil {_x getVariable "CBA_taskDefend_positions"}) then { | ||
| _x setVariable ["CBA_taskDefend_positions",_positions]; | ||
| }; | ||
| }; | ||
| } forEach _buildings; | ||
| _buildings = _buildings arrayIntersect _buildings; | ||
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| // v1.56 version of the above | ||
| /*_buildings = _buildings select { | ||
| private _positions = _x buildingPos -1; | ||
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| if (isNil {_x getVariable "CBA_taskDefend_positions"}) then { | ||
| _x setVariable ["CBA_taskDefend_positions",_positions]; | ||
| }; | ||
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| count (_positions) > _threshold | ||
| };*/ | ||
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| private _units = units _group; | ||
| private _assigned = 0; | ||
| { | ||
| // 31% chance to occupy nearest free static weapon | ||
| if ((random 1 < 0.31) && { !(_statics isEqualto []) }) then { | ||
| _x assignAsGunner (_statics deleteAt 0); | ||
| [_x] orderGetIn true; | ||
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| _assigned = _assigned + 1; | ||
| } else { | ||
| // 93% chance to occupy a random nearby building position | ||
| if ((random 1 < 0.93) && { !(_buildings isEqualto []) }) then { | ||
| private _building = _buildings call BIS_fnc_selectRandom; | ||
| private _array = _building getVariable ["CBA_taskDefend_positions",[]]; | ||
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| if !(_array isEqualTo []) then { | ||
| private _pos = _array deleteAt (floor(random(count _array))); | ||
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| // If building positions are all taken remove from possible buildings | ||
| if (_array isEqualTo []) then { | ||
| _buildings = _buildings - [_building]; | ||
| _building setVariable ["CBA_taskDefend_positions",nil]; | ||
| }; | ||
| _building setVariable ["CBA_taskDefend_positions",_array]; | ||
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| // AI manipulation trickey to keep them in position until commanded to move | ||
| [_x, _pos] spawn { | ||
| params ["_unit","_pos"]; | ||
| if (surfaceIsWater _pos) exitwith {}; | ||
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| _unit doMove _pos; | ||
| sleep 5; | ||
| waituntil {unitReady _unit}; | ||
| _unit disableAI "move"; | ||
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There was a problem hiding this comment. Just a note that this function should definitely be updated to use the new feature added in today's dev branch changelog:
However I have no idea if the dev branch stuff will appear in the next verison of arma, or the one after There was a problem hiding this comment. Probably something for a future PR when we do know in which version it will be available? |
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| doStop _unit; | ||
| waituntil {!(unitReady _unit)}; | ||
| _unit enableAI "move"; | ||
| }; | ||
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| _assigned = _assigned + 1; | ||
| }; | ||
| }; | ||
| }; | ||
| } forEach _units; | ||
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| // If half of the group's units aren't assigned then patrol | ||
| if (_patrol && {_assigned < (count _units) * 0.5}) then { | ||
| [_group, _position, _radius, 5, "sad", "safe", "red", "limited"] call CBA_fnc_taskpatrol; | ||
| }; | ||
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Change in behaviour: the old version does not send the first unit (leader?) into the building, but the new one does.
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Good catch, though I'm going to write it such that the leader will only stay outside when the group has more than 2 units as otherwise it actually makes sense for the leader to enter 👍
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So I've noticed that the leader will continue on to the group's next waypoint if he isn't searching the building himself.
Should I change it to make him wait outside until the search is done? Otherwise he could run quite far ahead of the group.
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Yeah, that's better than him going on without his team.
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Unfortunately I can't find a reliable & safe way to do this.
I could create a waypoint - which introduces the problem of trying to safely remove the waypoint once it has served its purpose (since the creation of other waypoints could change the index - I think using the waypoint statement combined with
currentWaypointcould do the trick though).While
doStoppermanently stops the unit as far as I can tell - which can be avoided in future once thedisableAI "PATH"functionality is in the release version of arma.There was a problem hiding this comment.
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Okay, got the waypoint solution working cleanly - it's actually preferable to using AI commands because it also takes care of spare group members too and allows me to put the post-search code into the completion statement instead of running a loop 😄