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128 lines
5.0 KiB
Plaintext
128 lines
5.0 KiB
Plaintext
#include "..\script_component.hpp"
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/*
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* Author: Jaynus, NouberNou, Lambda.Tiger,
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* This function check whether a spall event has occured and generates spall.
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*
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* Arguments:
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* 0: The object a projectile hit <OBJECT>
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* 1: The config name of the projectile <STRING>
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* 2: The projectile that should cause spalling <OBJECT>
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* 3: The position (ASL) the projectile hit the object <ARRAY>
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* 4: The old velocity of the projectile <ARRAY>
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* 5: The projectile's shotParents <ARRAY>
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*
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* Return Value:
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* None
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*
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* Example:
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* [editorPlacedHouse_0, typeOf _projectile, _projectile, [1000, 40, 60], [0, 1000, 0], [objNull, ace_player]] call ace_frag_fnc_doSpall
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*
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* Public: No
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*/
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#define WEIGHTED_SIZE [QGVAR(spall_small), 4, QGVAR(spall_medium), 3, QGVAR(spall_large), 2, QGVAR(spall_huge), 1]
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params ["_objectHit", "_roundType", "_round", "_oldPosASL", "_oldVelocity", "_shotParents"];
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TRACE_6("",_objectHit,_roundType,_round,_oldPosASL,_oldVelocity,_shotParents);
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if ((isNil "_objectHit") || {isNull _objectHit}) exitWith {
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WARNING_1("Problem with hitPart data - bad object [%1]",_objectHit);
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};
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private _caliber = getNumber (configFile >> "CfgAmmo" >> _roundType >> "caliber");
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private _explosive = getNumber (configFile >> "CfgAmmo" >> _roundType >> "explosive");
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private _idh = getNumber (configFile >> "CfgAmmo" >> _roundType >> "indirectHitRange");
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_roundType call FUNC(getSpallInfo) params ["_caliber", "_explosive"];
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private _exit = false;
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private _velocityModifier = 1;
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private _curVelocity = velocity _round;
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private _oldSpeed = vectorMagnitude _oldVelocity;
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private _curSpeed = vectorMagnitude _curVelocity;
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if (alive _round) then {
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private _diff = _oldVelocity vectorDiff _curVelocity;
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private _polar = _diff call CBA_fnc_vect2polar;
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if (abs (_polar select 1) > 45 || {abs (_polar select 2) > 45}) then {
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if (_caliber < 2.5) then {
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_exit = true;
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} else {
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SUB(_velocityModifier,_curSpeed / _oldSpeed);
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};
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};
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};
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if (_exit) exitWith {
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TRACE_1("exit alive",_caliber);
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};
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private _unitDir = vectorNormalized _oldVelocity;
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if ((isNil "_oldPosASL") || {!(_oldPosASL isEqualTypeArray [0,0,0])}) exitWith {WARNING_1("Problem with hitPart data - bad pos [%1]",_oldPosASL);};
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private _pos1 = _oldPosASL;
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private _spallPosAGL = _pos1;
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private _searchStepSize = _unitDir vectorMultiply 0.05;
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for "_i" from 0 to 20 do {
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_spallPosAGL = _pos1 vectorAdd _searchStepSize;
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if (!lineIntersects [_pos1, _spallPosAGL]) exitWith {};
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_pos1 = _spallPosAGL;
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};
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if (_spallPosAGL isEqualTo _pos1) exitWith {
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TRACE_1("can't find other side",_oldPosASL);
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};
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_spallPosAGL = ASLToAGL _spallPosAGL;
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(_shotParents#1) setVariable [QGVAR(nextSpallEvent), CBA_missionTime + ACE_FRAG_SPALL_UNIT_HOLDOFF];
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private _oldVelocitySpherical = _oldVelocity call CBA_fnc_vect2polar;
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if (_explosive > 0) then {
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_roundType call FUNC(getFragInfo) params ["", "_fragVelocity"];
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_oldVelocitySpherical set [0, _fragVelocity * 0.66];
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};
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TRACE_2("spallPosandVel",_spallPosAGL,_oldVelocitySpherical);
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private _spread = 15 + (random 25);
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private _spallCount = 5 + (random 10);
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TRACE_1("",_spallCount);
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for "_i" from 1 to _spallCount do {
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private _fragmentElevation = ((_oldVelocitySpherical select 2) - _spread) + (random (_spread * 2));
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private _fragmentAzimuth = ((_oldVelocitySpherical select 1) - _spread) + (random (_spread * 2));
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if (abs _fragmentElevation > 90) then {
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ADD(_fragmentAzimuth,180);
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};
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_fragmentAzimuth = _fragmentAzimuth % 360;
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private _fragmentSpeed = (_oldVelocitySpherical select 0) * 0.33 * _velocityModifier;
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_fragmentSpeed = _fragmentSpeed * (0.75 + random 0.5);
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private _spallFragVect = [_fragmentSpeed, _fragmentAzimuth, _fragmentElevation] call CBA_fnc_polar2vect;
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private _fragment = createVehicleLocal [selectRandomWeighted WEIGHTED_SIZE, _spallPosAGL, [], 0, "CAN_COLLIDE"];
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_fragment setVelocity _spallFragVect;
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_fragment setShotParents _shotParents;
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#ifdef DEBUG_MODE_DRAW
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[_fragment, "orange", true] call FUNC(dev_trackObj);
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#endif
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};
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_spread = 5 + (random 5);
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_spallCount = 3 + (random 5);
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for "_i" from 1 to _spallCount do {
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private _fragmentElevation = ((_oldVelocitySpherical select 2) - _spread) + (random (_spread * 2));
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private _fragmentAzimuth = ((_oldVelocitySpherical select 1) - _spread) + (random (_spread * 2));
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if (abs _fragmentElevation > 90) then {
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ADD(_fragmentAzimuth,180);
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};
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_fragmentAzimuth = _fragmentAzimuth % 360;
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private _fragmentSpeed = (_oldVelocitySpherical select 0) * 0.55 * _velocityModifier;
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_fragmentSpeed = _fragmentSpeed * (0.75 + random 0.5);
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private _spallFragVect = [_fragmentSpeed, _fragmentAzimuth, _fragmentElevation] call CBA_fnc_polar2vect;
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private _fragment = createVehicleLocal [selectRandomWeighted WEIGHTED_SIZE, _spallPosAGL, [], 0, "CAN_COLLIDE"];
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_fragment setVelocity _spallFragVect;
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_fragment setShotParents _shotParents;
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#ifdef DEBUG_MODE_DRAW
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[_fragment, "purple", true] call FUNC(dev_trackObj);
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#endif
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};
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