metaforce/Runtime/World/CScriptDamageableTrigger.cpp

#include "CScriptDamageableTrigger.hpp"
#include "CActorParameters.hpp"
#include "TCastTo.hpp"
#include "CStateManager.hpp"
#include "CWorld.hpp"
#include "CScriptActor.hpp"

namespace urde
{
CActorParameters MakeDamageableTriggerActorParms(const CActorParameters& aParams, const CVisorParameters& vParams)
{
    CActorParameters ret = aParams;
    ret.SetVisorParameters(vParams);
    return ret;
}

CMaterialList MakeDamageableTriggerMaterial(CScriptDamageableTrigger::ECanOrbit canOrbit)
{
    if (canOrbit == CScriptDamageableTrigger::ECanOrbit::Orbit)
        return CMaterialList(EMaterialTypes::Orbit, EMaterialTypes::Trigger, EMaterialTypes::Immovable,
                             EMaterialTypes::NonSolidDamageable, EMaterialTypes::ExcludeFromLineOfSightTest);
    return CMaterialList(EMaterialTypes::Trigger, EMaterialTypes::Immovable,
                         EMaterialTypes::NonSolidDamageable, EMaterialTypes::ExcludeFromLineOfSightTest);
}


CScriptDamageableTrigger::CScriptDamageableTrigger(TUniqueId uid, std::string_view name, const CEntityInfo& info,
                                                   const zeus::CVector3f& position, const zeus::CVector3f& extent,
                                                   const CHealthInfo& hInfo, const CDamageVulnerability& dVuln,
                                                   u32 faceFlag, CAssetId patternTex1, CAssetId patternTex2,
                                                   CAssetId colorTex, ECanOrbit canOrbit, bool active,
                                                   const CVisorParameters& vParams)
: CActor(uid, active, name, info, zeus::CTransform::Translate(position), CModelData::CModelDataNull(),
         MakeDamageableTriggerMaterial(canOrbit), MakeDamageableTriggerActorParms(CActorParameters::None(), vParams),
         kInvalidUniqueId),
  x14c_bounds(-extent * 0.5f, extent * 0.5f),
  x164_origHInfo(hInfo), x16c_hInfo(hInfo), x174_dVuln(dVuln), x1dc_faceFlag(faceFlag),
  x254_fluidPlane(patternTex1, patternTex2, colorTex, 1.f, 2,
                  EFluidType::NormalWater, 1.f, CFluidUVMotion(6.f, 0.f))
{
    x300_28_canOrbit = canOrbit == ECanOrbit::Orbit;
    if (x1dc_faceFlag & 0x1)
    {
        x244_faceTranslate = zeus::CVector3f(0.f, x14c_bounds.max.y, 0.f);
        x1e4_faceDir = zeus::CTransform::RotateX(-M_PIF / 2.f);
    }
    else if (x1dc_faceFlag & 0x2)
    {
        x244_faceTranslate = zeus::CVector3f(0.f, x14c_bounds.min.y, 0.f);
        x1e4_faceDir = zeus::CTransform::RotateX(M_PIF / 2.f);
    }
    else if (x1dc_faceFlag & 0x4)
    {
        x244_faceTranslate = zeus::CVector3f(x14c_bounds.min.x, 0.f, 0.f);
        x1e4_faceDir = zeus::CTransform::RotateY(-M_PIF / 2.f);
    }
    else if (x1dc_faceFlag & 0x8)
    {
        x244_faceTranslate = zeus::CVector3f(x14c_bounds.max.x, 0.f, 0.f);
        x1e4_faceDir = zeus::CTransform::RotateY(M_PIF / 2.f);
    }
    else if (x1dc_faceFlag & 0x10)
    {
        x244_faceTranslate = zeus::CVector3f(0.f, 0.f, x14c_bounds.max.z);
        x1e4_faceDir = zeus::CTransform::Identity();
    }
    else if (x1dc_faceFlag & 0x20)
    {
        x244_faceTranslate = zeus::CVector3f(0.f, 0.f, x14c_bounds.min.z);
        x1e4_faceDir = zeus::CTransform::RotateY(M_PIF);
    }

    x214_faceDirInv = x1e4_faceDir.inverse();
}

void CScriptDamageableTrigger::Accept(IVisitor& visitor)
{
    visitor.Visit(this);
}

void CScriptDamageableTrigger::AcceptScriptMsg(EScriptObjectMessage msg, TUniqueId sender, CStateManager& mgr)
{
    switch (msg)
    {
    case EScriptObjectMessage::Deactivate:
        if (x30_24_active && x300_25_alphaOut)
            return;
        [[fallthrough]];
    case EScriptObjectMessage::Activate:
        if (!x30_24_active || x300_25_alphaOut)
        {
            x250_alphaTimer = 0.f;
            x16c_hInfo = x164_origHInfo;
            x300_25_alphaOut = false;
            if (x300_28_canOrbit)
                AddMaterial(EMaterialTypes::Orbit, mgr);
            SetLinkedObjectAlpha(0.f, mgr);
            x1e0_alpha = 0.f;
        }
        break;
    case EScriptObjectMessage::Damage:
        if (x300_27_invulnerable)
            x16c_hInfo = x164_origHInfo;
        break;
    case EScriptObjectMessage::Increment:
        x300_27_invulnerable = true;
        break;
    case EScriptObjectMessage::Decrement:
        x300_27_invulnerable = false;
        break;
    default:
        break;
    }

    CActor::AcceptScriptMsg(msg, sender, mgr);
}

EWeaponCollisionResponseTypes
CScriptDamageableTrigger::GetCollisionResponseType(const zeus::CVector3f&, const zeus::CVector3f&,
                                                   const CWeaponMode& weapMode, EProjectileAttrib) const
{
    return x174_dVuln.WeaponHurts(weapMode, false) ? EWeaponCollisionResponseTypes::OtherProjectile :
    EWeaponCollisionResponseTypes::Unknown15;
}

void CScriptDamageableTrigger::Render(const CStateManager& mgr) const
{
    if (x30_24_active && x1dc_faceFlag != 0 && std::fabs(x1e0_alpha) >= 0.00001f)
    {
        zeus::CAABox aabb = x14c_bounds.getTransformedAABox(x214_faceDirInv);
        zeus::CTransform xf = x34_transform * zeus::CTransform::Translate(x244_faceTranslate) * x1e4_faceDir;
        x254_fluidPlane.Render(mgr, x1e0_alpha, aabb, xf, zeus::CTransform::Identity(), false,
                               xe8_frustum, {}, kInvalidUniqueId, nullptr, 0, 0, zeus::CVector3f::skZero);
    }

    CActor::Render(mgr);
}

void CScriptDamageableTrigger::AddToRenderer(const zeus::CFrustum& /*frustum*/, const CStateManager& mgr) const
{
    if (x300_26_outOfFrustum)
        return;
    EnsureRendered(mgr, GetTranslation() - x244_faceTranslate, GetSortingBounds(mgr));
}

void CScriptDamageableTrigger::PreRender(CStateManager& mgr, const zeus::CFrustum& frustum)
{
    x300_26_outOfFrustum = !frustum.aabbFrustumTest(x14c_bounds.getTransformedAABox(x34_transform));
    if (!x300_26_outOfFrustum)
    {
        xe8_frustum = frustum;
        CActor::PreRender(mgr, frustum);
    }
}

void CScriptDamageableTrigger::SetLinkedObjectAlpha(float a, CStateManager& mgr)
{
    for (const SConnection& conn : x20_conns)
    {
        if (conn.x0_state != EScriptObjectState::MaxReached ||
            conn.x4_msg != EScriptObjectMessage::Activate)
            continue;
        if (TCastToPtr<CScriptActor> act = mgr.ObjectById(mgr.GetIdForScript(conn.x8_objId)))
        {
            if (!act->GetActive())
                act->SetActive(true);
            act->SetDrawFlags(CModelFlags(5, 0, 3, zeus::CColor(1.f, a)));
        }
    }
}

float CScriptDamageableTrigger::GetPuddleAlphaScale() const
{
    if (x250_alphaTimer <= 0.75f)
    {
        if (x300_25_alphaOut)
            return 1.f - x250_alphaTimer / 0.75f;
        return x250_alphaTimer / 0.75f;
    }

    if (x300_25_alphaOut)
        return 0.f;
    return 1.f;
}

void CScriptDamageableTrigger::Think(float dt, CStateManager& mgr)
{
    if (!GetActive())
        return;

    const CGameArea* area = mgr.GetWorld()->GetAreaAlways(GetAreaIdAlways());
    CGameArea::EOcclusionState occState =
        area->IsPostConstructed() ? area->GetOcclusionState() : CGameArea::EOcclusionState::Occluded;
    x300_24_notOccluded = occState == CGameArea::EOcclusionState::Visible;

    if (x300_25_alphaOut)
    {
        if (x250_alphaTimer >= 0.75f)
        {
            SetActive(false);
            for (const SConnection& conn : x20_conns)
            {
                if (conn.x0_state != EScriptObjectState::MaxReached ||
                    conn.x4_msg != EScriptObjectMessage::Activate)
                    continue;
                if (TCastToPtr<CScriptActor> act = mgr.ObjectById(mgr.GetIdForScript(conn.x8_objId)))
                    act->SetActive(false);
            }

            SetLinkedObjectAlpha(0.f, mgr);
            x300_25_alphaOut = false;
            return;
        }
    }
    else if (x16c_hInfo.GetHP() <= 0.f && x30_24_active)
    {
        SendScriptMsgs(EScriptObjectState::Dead, mgr, EScriptObjectMessage::None);
        RemoveMaterial(EMaterialTypes::Orbit, mgr);
        x300_25_alphaOut = true;
        x250_alphaTimer = 0.f;
    }

    if (x250_alphaTimer <= 0.75f)
        x250_alphaTimer += dt;

    float objAlpha = GetPuddleAlphaScale();
    x1e0_alpha = 0.2f * objAlpha;
    SetLinkedObjectAlpha(objAlpha, mgr);
}

std::experimental::optional<zeus::CAABox> CScriptDamageableTrigger::GetTouchBounds() const
{
    if (x30_24_active && x300_24_notOccluded)
        return {zeus::CAABox(x14c_bounds.min + GetTranslation(), x14c_bounds.max + GetTranslation())};
    return {};
}

}