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metaforce/Runtime/Camera/CFirstPersonCamera.cpp

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#include "CFirstPersonCamera.hpp"
#include "GameGlobalObjects.hpp"
#include "CStateManager.hpp"
#include "World/CPlayer.hpp"
#include "World/CScriptGrapplePoint.hpp"
#include "World/CScriptCameraPitchVolume.hpp"
#include "TCastTo.hpp"
namespace urde {
CFirstPersonCamera::CFirstPersonCamera(TUniqueId uid, const zeus::CTransform& xf, TUniqueId watchedObj,
float orbitCameraSpeed, float fov, float nearz, float farz, float aspect)
: CGameCamera(uid, true, "First Person Camera", CEntityInfo(kInvalidAreaId, CEntity::NullConnectionList), xf, fov,
nearz, farz, aspect, watchedObj, false, 0)
, x188_orbitCameraSpeed(orbitCameraSpeed)
, x190_gunFollowXf(xf) {
x1c6_24_deferBallTransitionProcessing = false;
}
void CFirstPersonCamera::Accept(IVisitor& visitor) { visitor.Visit(this); }
void CFirstPersonCamera::PreThink(float dt, CStateManager& mgr) {
// Empty
}
void CFirstPersonCamera::Think(float dt, CStateManager& mgr) {
if (TCastToPtr<CPlayer> player = mgr.ObjectById(xe8_watchedObject)) {
if (!x1c6_24_deferBallTransitionProcessing) {
if (player->GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Morphed) {
if (player->GetCameraState() != CPlayer::EPlayerCameraState::Spawned)
return;
SetTransform(player->CreateTransformFromMovementDirection());
SetTranslation(player->GetEyePosition());
return;
}
if (player->GetMorphballTransitionState() != CPlayer::EPlayerMorphBallState::Unmorphed) {
if (player->GetMorphballTransitionState() != CPlayer::EPlayerMorphBallState::Unmorphing)
return;
if (std::fabs(player->GetMorphFactor() - 1.f) >= 0.00001f)
return;
}
} else {
x1c6_24_deferBallTransitionProcessing = false;
}
zeus::CTransform backupXf = x34_transform;
UpdateElevation(mgr);
UpdateTransform(mgr, dt);
SetTransform(ValidateCameraTransform(x34_transform, backupXf));
if (x1d4_closeInTimer > 0.f)
x1d4_closeInTimer -= dt;
}
}
void CFirstPersonCamera::ProcessInput(const CFinalInput&, CStateManager& mgr) {
// Empty
}
void CFirstPersonCamera::Reset(const zeus::CTransform& xf, CStateManager& mgr) {
SetTransform(xf);
SetTranslation(mgr.GetPlayer().GetEyePosition());
x190_gunFollowXf = x34_transform;
}
void CFirstPersonCamera::SkipCinematic() {
x1c8_closeInVec = zeus::CVector3f::skZero;
x1d4_closeInTimer = 0.f;
}
void CFirstPersonCamera::CalculateGunFollowOrientationAndTransform(zeus::CTransform& gunXf, zeus::CQuaternion& gunQ,
float dt, zeus::CVector3f& rVec) {
zeus::CVector3f gunFrontVec = x190_gunFollowXf.frontVector();
gunFrontVec.z() = 0.f;
if (gunFrontVec.canBeNormalized())
gunFrontVec.normalize();
zeus::CVector3f rVecNoZ = rVec;
rVecNoZ.z() = 0.f;
if (rVecNoZ.canBeNormalized())
rVecNoZ.normalize();
gunXf = zeus::CQuaternion::lookAt(gunFrontVec, rVecNoZ, 2.f * M_PIF).toTransform() * x190_gunFollowXf.getRotation();
zeus::CVector3f newgunFront = gunXf.frontVector();
if (newgunFront.canBeNormalized())
newgunFront.normalize();
float angle = newgunFront.dot(rVec);
angle = zeus::clamp(-1.f, angle, 1.f);
gunQ = zeus::CQuaternion::lookAt(newgunFront, rVec, zeus::clamp(0.f, std::acos(angle) / dt, 1.f) * dt);
}
void CFirstPersonCamera::UpdateTransform(CStateManager& mgr, float dt) {
TCastToPtr<CPlayer> player(mgr.ObjectById(GetWatchedObject()));
if (!player) {
SetTransform(zeus::CTransform::Identity());
return;
}
zeus::CTransform playerXf = player->GetTransform();
zeus::CVector3f rVec = playerXf.rotate(
{0.f, zeus::clamp(-1.f, std::cos(x1c0_pitch), 1.0f), zeus::clamp(-1.f, std::sin(x1c0_pitch), 1.0f)});
if (player->x3dc_inFreeLook) {
float angle = player->x3ec_freeLookPitchAngle;
float angleClamp = g_tweakPlayer->GetVerticalFreeLookAngleVel() - std::fabs(x1c0_pitch);
angle = zeus::clamp(-angleClamp, angle, angleClamp);
zeus::CVector3f vec;
vec.z() = std::sin(angle);
vec.y() = std::cos(-player->x3e4_freeLookYawAngle) * std::cos(angle);
vec.x() = std::sin(-player->x3e4_freeLookYawAngle) * std::cos(angle);
if (g_tweakPlayer->GetFreeLookTurnsPlayer()) {
vec.x() = 0.f;
if (!zeus::close_enough(vec, zeus::CVector3f::skZero))
vec.normalize();
}
rVec = zeus::CQuaternion::lookAt({0.f, 1.f, 0.f}, rVec, 2.f * M_PIF).transform(vec);
}
zeus::CVector3f eyePos = player->GetEyePosition();
if (x1d4_closeInTimer > 0.f) {
eyePos += zeus::clamp(0.f, 0.5f * x1d4_closeInTimer, 1.f) * x1c8_closeInVec;
player->GetCameraBob()->ResetCameraBobTime();
player->GetCameraBob()->SetCameraBobTransform(zeus::CTransform::Identity());
}
switch (player->GetOrbitState()) {
case CPlayer::EPlayerOrbitState::ForcedOrbitObject:
case CPlayer::EPlayerOrbitState::OrbitObject: {
const CActor* act = TCastToConstPtr<CActor>(mgr.GetObjectById(player->x310_orbitTargetId));
if (act && act->GetMaterialList().HasMaterial(EMaterialTypes::Orbit)) {
zeus::CVector3f v = player->x314_orbitPoint - eyePos;
if (v.canBeNormalized())
v.normalize();
rVec = v;
} else {
rVec = player->x314_orbitPoint - eyePos;
}
break;
}
case CPlayer::EPlayerOrbitState::OrbitPoint:
case CPlayer::EPlayerOrbitState::OrbitCarcass: {
if (!player->x3dd_lookButtonHeld) {
rVec = player->x314_orbitPoint - eyePos;
}
break;
}
case CPlayer::EPlayerOrbitState::NoOrbit: {
if (player->GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Unmorphed &&
!player->x3dc_inFreeLook && x1c4_pitchId == kInvalidUniqueId) {
if (player->x294_jumpCameraTimer > 0.f) {
float angle = zeus::clamp(0.f,
(player->x294_jumpCameraTimer - g_tweakPlayer->GetJumpCameraPitchDownStart()) /
g_tweakPlayer->GetJumpCameraPitchDownFull(),
1.f) *
g_tweakPlayer->GetJumpCameraPitchDownAngle();
angle += x1c0_pitch;
rVec.x() = 0.f;
rVec.y() = std::cos(angle);
rVec.z() = -std::sin(angle);
rVec = playerXf.rotate(rVec);
} else if (player->x29c_fallCameraTimer > 0.f) {
float angle = zeus::clamp(0.f,
(player->x29c_fallCameraTimer - g_tweakPlayer->GetFallCameraPitchDownStart()) /
g_tweakPlayer->GetFallCameraPitchDownFull(),
1.f) *
g_tweakPlayer->GetFallCameraPitchDownAngle();
rVec.x() = 0.f;
rVec.y() = std::cos(angle);
rVec.z() = -std::sin(angle);
rVec = playerXf.rotate(rVec);
}
}
break;
}
default:
break;
}
if (rVec.canBeNormalized())
rVec.normalize();
zeus::CTransform gunXf = x190_gunFollowXf;
zeus::CQuaternion qGun = zeus::CQuaternion::skNoRotation;
if (!player->x3dc_inFreeLook) {
switch (player->GetOrbitState()) {
default: {
CalculateGunFollowOrientationAndTransform(gunXf, qGun, dt * g_tweakPlayer->GetFirstPersonCameraSpeed(), rVec);
break;
}
case CPlayer::EPlayerOrbitState::Grapple: {
CalculateGunFollowOrientationAndTransform(gunXf, qGun, dt * g_tweakPlayer->GetGrappleCameraSpeed(), rVec);
break;
}
case CPlayer::EPlayerOrbitState::OrbitPoint:
case CPlayer::EPlayerOrbitState::OrbitCarcass: {
CalculateGunFollowOrientationAndTransform(gunXf, qGun, dt * g_tweakPlayer->GetOrbitCameraSpeed() * 0.25f, rVec);
break;
}
case CPlayer::EPlayerOrbitState::ForcedOrbitObject:
case CPlayer::EPlayerOrbitState::OrbitObject: {
zeus::CVector3f gunFrontVec = x190_gunFollowXf.frontVector();
if (gunFrontVec.canBeNormalized())
gunFrontVec.normalize();
float scaledDt = (dt * g_tweakPlayer->GetOrbitCameraSpeed());
float angle = gunFrontVec.dot(rVec);
angle = zeus::clamp(-1.f, angle, 1.f);
float clampedAngle = zeus::clamp(0.f, std::acos(angle) / scaledDt, 1.f);
if (angle > 0.999f || x18c_lockCamera || player->x374_orbitLockEstablished)
qGun = zeus::CQuaternion::lookAt(gunFrontVec, rVec, 2.f * M_PIF);
else
qGun = zeus::CQuaternion::lookAt(gunFrontVec, rVec, scaledDt * clampedAngle);
const CScriptGrapplePoint* gPoint =
TCastToConstPtr<CScriptGrapplePoint>(mgr.GetObjectById(player->x310_orbitTargetId));
if (gPoint && player->x29c_fallCameraTimer > 0.f) {
gunFrontVec = x190_gunFollowXf.frontVector();
if (gunFrontVec.canBeNormalized())
gunFrontVec.normalize();
zeus::CVector3f rVecCpy = rVec;
rVecCpy.z() = 0.f;
if (rVecCpy.canBeNormalized())
rVecCpy.normalize();
gunXf =
zeus::CQuaternion::lookAt(gunFrontVec, rVecCpy, 2.f * M_PIF).toTransform() * x190_gunFollowXf.getRotation();
gunFrontVec = gunXf.frontVector();
if (gunFrontVec.canBeNormalized())
gunFrontVec.normalize();
// float angle = gunFrontVec.dot(rVec);
// float sdt = dt * g_tweakPlayer->GetGrappleCameraSpeed();
// angle = zeus::clamp(-1.f, angle, 1.f);
// angle = zeus::clamp(0.f, std::acos(angle) / sdt, 1.f);
qGun = zeus::CQuaternion::lookAt(gunFrontVec, rVecCpy, 2.f * M_PIF);
}
break;
}
}
} else {
zeus::CVector3f gunFront = x190_gunFollowXf.frontVector();
gunFront.z() = 0.f;
if (gunFront.canBeNormalized())
gunFront.normalize();
zeus::CVector3f rVecCpy = rVec;
rVecCpy.z() = 0.f;
if (rVecCpy.canBeNormalized())
rVecCpy.normalize();
gunXf = zeus::CQuaternion::lookAt(gunFront, rVecCpy, 2.f * M_PIF).toTransform() * x190_gunFollowXf.getRotation();
gunFront = gunXf.frontVector();
if (gunFront.canBeNormalized())
gunFront.normalize();
float angle = gunFront.dot(rVec);
angle = zeus::clamp(-1.f, angle, 1.f);
float sdt = dt * g_tweakPlayer->GetFreeLookSpeed();
qGun = zeus::CQuaternion::lookAt(
gunFront, rVec,
sdt * zeus::clamp(0.f, g_tweakPlayer->GetFreeLookDampenFactor() * (std::acos(angle) / sdt), 1.f));
}
zeus::CTransform bobXf = player->GetCameraBob()->GetCameraBobTransformation();
if (player->GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Morphed ||
player->GetOrbitState() == CPlayer::EPlayerOrbitState::Grapple ||
player->GetGrappleState() != CPlayer::EGrappleState::None ||
mgr.GetGameState() == CStateManager::EGameState::SoftPaused || mgr.GetCameraManager()->IsInCinematicCamera() ||
x1d4_closeInTimer > 0.f) {
bobXf = zeus::CTransform::Identity();
player->GetCameraBob()->SetCameraBobTransform(bobXf);
}
x190_gunFollowXf = qGun.toTransform() * gunXf;
SetTransform(x190_gunFollowXf * bobXf.getRotation());
x190_gunFollowXf.origin = eyePos;
CActor::SetTranslation(eyePos + player->GetTransform().rotate(bobXf.origin));
x190_gunFollowXf.orthonormalize();
}
void CFirstPersonCamera::UpdateElevation(CStateManager& mgr) {
x1c0_pitch = 0.f;
if (TCastToConstPtr<CPlayer> player = mgr.GetObjectById(xe8_watchedObject)) {
if (x1c4_pitchId != kInvalidUniqueId) {
if (TCastToConstPtr<CScriptCameraPitchVolume> pvol = mgr.GetObjectById(x1c4_pitchId)) {
zeus::CVector3f pitchDirFlat = pvol->GetTransform().basis[1];
pitchDirFlat.z() = 0.f;
if (!pitchDirFlat.canBeNormalized())
pitchDirFlat = zeus::CVector3f::skForward;
zeus::CVector3f playerDirFlat = player->GetTransform().basis[1];
playerDirFlat.z() = 0.f;
playerDirFlat.normalize();
float pitchDot = zeus::clamp(-1.f, pitchDirFlat.dot(playerDirFlat), 1.f);
if (pitchDot < 0.f)
x1c0_pitch = pvol->GetDownPitch() * -pitchDot;
else
x1c0_pitch = pvol->GetUpPitch() * -pitchDot;
zeus::CVector3f pvolToPlayerFlat = player->GetTranslation() - pvol->GetTranslation();
pvolToPlayerFlat.z() = 0.f;
float pitchMul = 0.f;
if (pvolToPlayerFlat.canBeNormalized()) {
float pvolPlayerProj =
std::fabs(zeus::clamp(-1.f, pvolToPlayerFlat.dot(pitchDirFlat), 1.f)) * pvolToPlayerFlat.magnitude();
if (pvolPlayerProj <= pvol->GetMaxInterpolationDistance())
pitchMul = 1.f;
else
pitchMul = 1.f - zeus::clamp(-1.f,
(pvolPlayerProj - pvol->GetMaxInterpolationDistance()) /
(pvol->GetScale().y() - pvol->GetMaxInterpolationDistance()),
1.f);
}
x1c0_pitch *= pitchMul;
}
}
}
}
} // namespace urde
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