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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "System/creg/STL_List.h"
#include "System/creg/STL_Set.h"
#include "PlasmaRepulser.h"
#include "WeaponMemPool.h"
#include "Sim/Misc/GlobalSynced.h"
#include "Sim/Misc/QuadField.h"
#include "Sim/Misc/TeamHandler.h"
#include "Sim/Projectiles/ProjectileHandler.h"
#include "Rendering/Env/Particles/Classes/ShieldSegmentProjectile.h"
#include "Rendering/Env/Particles/Classes/RepulseGfx.h"
#include "Sim/Projectiles/WeaponProjectiles/WeaponProjectile.h"
#include "Sim/Units/Scripts/UnitScript.h"
#include "Sim/Units/Unit.h"
#include "Sim/Weapons/WeaponDef.h"
#include "System/EventHandler.h"
#include "System/myMath.h"
CR_BIND_DERIVED_POOL(CPlasmaRepulser, CWeapon, , weaponMemPool.alloc, weaponMemPool.free)
CR_REG_METADATA(CPlasmaRepulser, (
CR_MEMBER(radius),
CR_MEMBER(sqRadius),
CR_MEMBER(lastPos),
CR_MEMBER(curPower),
CR_MEMBER(hitFrames),
CR_MEMBER(rechargeDelay),
CR_MEMBER(isEnabled),
CR_MEMBER(segmentCollection),
CR_MEMBER(repulsedProjectiles),
CR_MEMBER(quads),
CR_MEMBER(collisionVolume),
CR_MEMBER(tempNum),
CR_MEMBER(deltaPos)
))
CPlasmaRepulser::CPlasmaRepulser(CUnit* owner, const WeaponDef* def): CWeapon(owner, def),
tempNum(0),
curPower(0.0f),
hitFrames(0),
rechargeDelay(0),
isEnabled(true)
{ }
CPlasmaRepulser::~CPlasmaRepulser()
{
delete segmentCollection;
quadField->RemoveRepulser(this);
}
void CPlasmaRepulser::Init()
{
collisionVolume.InitSphere(weaponDef->shieldRadius);
radius = weaponDef->shieldRadius;
sqRadius = radius * radius;
if (weaponDef->shieldPower == 0)
curPower = 99999999999.0f;
else
curPower = weaponDef->shieldStartingPower;
CWeapon::Init();
quadField->MovedRepulser(this);
// deleted by ProjectileHandler
segmentCollection = new ShieldSegmentCollection(this);
}
bool CPlasmaRepulser::IsRepulsing(CWeaponProjectile* p) const
{
return weaponDef->shieldRepulser && std::find(repulsedProjectiles.begin(), repulsedProjectiles.end(), p) != repulsedProjectiles.end();
}
bool CPlasmaRepulser::IsActive() const
{
return isEnabled && !owner->IsStunned() && !owner->beingBuilt;
}
bool CPlasmaRepulser::CanIntercept(unsigned interceptedType, int allyTeam) const
{
if ((weaponDef->shieldInterceptType & interceptedType) == 0)
return false;
if (weaponDef->smartShield && teamHandler->IsValidAllyTeam(allyTeam) && teamHandler->AlliedAllyTeams(allyTeam, owner->allyteam))
return false;
return IsActive();
}
void CPlasmaRepulser::Update()
{
rechargeDelay -= (rechargeDelay > 0) ? 1 : 0;
if (IsActive() && (curPower < weaponDef->shieldPower) && rechargeDelay <= 0) {
if (owner->UseEnergy(weaponDef->shieldPowerRegenEnergy * (1.0f / GAME_SPEED))) {
curPower += weaponDef->shieldPowerRegen * (1.0f / GAME_SPEED);
}
}
if (hitFrames > 0)
hitFrames--;
UpdateWeaponVectors();
collisionVolume.SetOffsets(weaponMuzzlePos - owner->midPos);
if (weaponMuzzlePos != lastPos)
quadField->MovedRepulser(this);
if (lastPos != ZeroVector)
deltaPos = weaponMuzzlePos - lastPos;
lastPos = weaponMuzzlePos;
segmentCollection->UpdateColor();
}
// Returns true if the projectile is destroyed.
bool CPlasmaRepulser::IncomingProjectile(CWeaponProjectile* p, const float3& hitPos)
{
const int defHitFrames = weaponDef->visibleShieldHitFrames;
const int defRechargeDelay = weaponDef->shieldRechargeDelay;
// gadget handles the collision event, don't touch the projectile
// start-pos only makes sense for beams, pass current p->pos here
if (eventHandler.ShieldPreDamaged(p, this, owner, weaponDef->shieldRepulser, nullptr, nullptr, p->pos, hitPos))
return false;
const DamageArray& damageArray = p->damages->GetDynamicDamages(p->GetStartPos(), p->pos);
const float shieldDamage = damageArray.Get(weaponDef->shieldArmorType);
// shield does not have enough power, don't touch the projectile
if (curPower < shieldDamage)
return false;
// team does not have enough energy, don't touch the projectile
if (teamHandler->Team(owner->team)->res.energy < weaponDef->shieldEnergyUse)
return false;
rechargeDelay = defRechargeDelay;
if (weaponDef->shieldRepulser) {
// bounce the projectile
switch (p->ShieldRepulse(weaponMuzzlePos, weaponDef->shieldForce, weaponDef->shieldMaxSpeed)) {
case 0: { return false; } break;
case 1: {
owner->UseEnergy(weaponDef->shieldEnergyUse);
curPower -= (shieldDamage * (weaponDef->shieldPower != 0.0f));
} break;
default: {
// NOTE:
// all weapons except Lasers do only (1 / GAME_SPEED) damage
// (Lasers are insta-bounced, others spend time "inside" the
// shield dealing damage every frame)
owner->UseEnergy(weaponDef->shieldEnergyUse / GAME_SPEED);
curPower -= ((shieldDamage / GAME_SPEED) * (weaponDef->shieldPower != 0.0f));
} break;
}
if (spring::VectorInsertUnique(repulsedProjectiles, p, true)) {
// projectile was not repulsed before
AddDeathDependence(p, DEPENDENCE_REPULSED);
if (weaponDef->visibleShieldRepulse) {
const float relPower = curPower / std::max(1.0f, weaponDef->shieldPower);
const float lrpColor = std::min(1.0f, relPower);
projMemPool.alloc<CRepulseGfx>(owner, p, radius, mix(weaponDef->shieldBadColor, weaponDef->shieldGoodColor, lrpColor));
}
}
if (defHitFrames > 0)
hitFrames = defHitFrames;
return false;
}
// kill the projectile
if (owner->UseEnergy(weaponDef->shieldEnergyUse)) {
curPower -= (shieldDamage * (weaponDef->shieldPower != 0.0f));
p->Collision();
if (defHitFrames > 0)
hitFrames = defHitFrames;
return true;
}
return false;
}
void CPlasmaRepulser::SlowUpdate()
{
UpdateWeaponPieces();
UpdateWeaponVectors();
owner->script->AimShieldWeapon(this);
}
bool CPlasmaRepulser::IncomingBeam(const CWeapon* emitter, const float3& startPos, const float3& hitPos, float damageMultiplier)
{
// gadget handles the collision event, don't touch the projectile
// note that startPos only equals the beam's true origin (which is
// p->GetStartPos()) if it did not get reflected
if (eventHandler.ShieldPreDamaged(nullptr, this, owner, weaponDef->shieldRepulser, emitter, emitter->owner, startPos, hitPos))
return false;
const DamageArray& damageArray = emitter->damages->GetDynamicDamages(startPos, weaponMuzzlePos);
const float shieldDamage = damageArray.Get(weaponDef->shieldArmorType);
if (curPower < shieldDamage)
return false;
// team does not have enough energy, don't touch the projectile
if (teamHandler->Team(owner->team)->res.energy < weaponDef->shieldEnergyUse)
return false;
if (weaponDef->shieldPower > 0.0f)
curPower -= shieldDamage * damageMultiplier;
return true;
}
void CPlasmaRepulser::DependentDied(CObject* o)
{
spring::VectorErase(repulsedProjectiles, static_cast<CWeaponProjectile*>(o));
CWeapon::DependentDied(o);
}
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