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109 lines
6.0 KiB
C++
109 lines
6.0 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include "FollowTargetFromDistance.h"
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#include <AzCore/Math/Transform.h>
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#include <AzCore/Serialization/SerializeContext.h>
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#include <AzCore/Math/Crc.h>
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#include <AzCore/Serialization/EditContext.h>
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#include <AzCore/Component/ComponentApplicationBus.h>
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#include "StartingPointCamera/StartingPointCameraConstants.h"
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#include "StartingPointCamera/StartingPointCameraUtilities.h"
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namespace Camera
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{
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void FollowTargetFromDistance::Reflect(AZ::ReflectContext* reflection)
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{
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AZ::SerializeContext* serializeContext = azrtti_cast<AZ::SerializeContext*>(reflection);
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if (serializeContext)
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{
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serializeContext->Class<FollowTargetFromDistance>()
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->Version(2)
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->Field("Follow Distance", &FollowTargetFromDistance::m_followDistance)
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->Field("Minimum Follow Distance", &FollowTargetFromDistance::m_minFollowDistance)
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->Field("Maximum Follow Distance", &FollowTargetFromDistance::m_maxFollowDistance)
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->Field("Zoom In Event Name", &FollowTargetFromDistance::m_zoomInEventName)
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->Field("Zoom Out Event Name", &FollowTargetFromDistance::m_zoomOutEventName)
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->Field("Zoom Speed Scale", &FollowTargetFromDistance::m_zoomSpeedScale)
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->Field("Input Source Entity", &FollowTargetFromDistance::m_channelId);
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AZ::EditContext* editContext = serializeContext->GetEditContext();
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if (editContext)
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{
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editContext->Class<FollowTargetFromDistance>("FollowTargetFromDistance", "Follows behind the target by Follow Distance meters")
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->ClassElement(AZ::Edit::ClassElements::EditorData, "")
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->DataElement(0, &FollowTargetFromDistance::m_followDistance, "Follow Distance", "The distance to follow behind the target in meters")
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->Attribute(AZ::Edit::Attributes::Suffix, "m")
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->Attribute(AZ::Edit::Attributes::Min, &FollowTargetFromDistance::GetMinimumFollowDistance)
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->Attribute(AZ::Edit::Attributes::Max, &FollowTargetFromDistance::GetMaximumFollowDistance)
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->Attribute(AZ::Edit::Attributes::ChangeNotify, AZ_CRC("RefreshAttributesAndValues"))
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->DataElement(0, &FollowTargetFromDistance::m_minFollowDistance, "Minimum Follow Distance", "The MINIMUM distance to follow the behind the target in meters")
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->Attribute(AZ::Edit::Attributes::Suffix, "m")
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->Attribute(AZ::Edit::Attributes::Min, 0.f)
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->Attribute(AZ::Edit::Attributes::Max, &FollowTargetFromDistance::GetMaximumFollowDistance)
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->Attribute(AZ::Edit::Attributes::ChangeNotify, AZ_CRC("RefreshAttributesAndValues"))
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->DataElement(0, &FollowTargetFromDistance::m_maxFollowDistance, "Maximum Follow Distance", "The MAXIMUM distance to follow the behind the target in meters")
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->Attribute(AZ::Edit::Attributes::Suffix, "m")
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->Attribute(AZ::Edit::Attributes::Min, &FollowTargetFromDistance::GetMinimumFollowDistance)
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->Attribute(AZ::Edit::Attributes::Max, std::numeric_limits<float>::max())
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->Attribute(AZ::Edit::Attributes::ChangeNotify, AZ_CRC("RefreshAttributesAndValues"))
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->DataElement(0, &FollowTargetFromDistance::m_zoomInEventName, "Zoom In Event Name", "The name of the event to trigger a zoom in")
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->DataElement(0, &FollowTargetFromDistance::m_zoomOutEventName, "Zoom Out Event Name", "The name of the event to trigger a zoom out")
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->DataElement(0, &FollowTargetFromDistance::m_zoomSpeedScale, "Zoom Speed Scale", "The amount to scale the incoming zoom event by");
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}
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}
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}
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void FollowTargetFromDistance::AdjustCameraTransform(float /*deltaTime*/, const AZ::Transform& /*initialCameraTransform*/, const AZ::Transform& targetTransform, AZ::Transform& inOutCameraTransform)
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{
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inOutCameraTransform.SetTranslation(targetTransform.GetTranslation() - targetTransform.GetBasis(ForwardBackward) * m_followDistance);
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}
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void FollowTargetFromDistance::Activate(AZ::EntityId channelId)
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{
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m_channelId = channelId;
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if (!m_zoomInEventName.empty())
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{
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AZ::GameplayNotificationId busId(m_channelId, AZ_CRC(m_zoomInEventName.c_str()));
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AZ::GameplayNotificationBus::MultiHandler::BusConnect(busId);
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}
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if (!m_zoomOutEventName.empty())
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{
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AZ::GameplayNotificationId busId(m_channelId, AZ_CRC(m_zoomOutEventName.c_str()));
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AZ::GameplayNotificationBus::MultiHandler::BusConnect(busId);
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}
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}
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void FollowTargetFromDistance::Deactivate()
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{
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if (!m_zoomInEventName.empty())
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{
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AZ::GameplayNotificationId busId(m_channelId, AZ_CRC(m_zoomInEventName.c_str()));
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AZ::GameplayNotificationBus::MultiHandler::BusDisconnect(busId);
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}
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if (!m_zoomOutEventName.empty())
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{
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AZ::GameplayNotificationId busId(m_channelId, AZ_CRC(m_zoomOutEventName.c_str()));
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AZ::GameplayNotificationBus::MultiHandler::BusDisconnect(busId);
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}
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}
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void FollowTargetFromDistance::OnEventBegin(const AZStd::any& value)
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{
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float floatValue = 0.0f;
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AZ_Warning("FollowTargetFromDistance", AZStd::any_numeric_cast<float>(&value, floatValue), "Received bad value, expected type numerically convertable to float, got type %s", GetNameFromUuid(value.type()));
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if (AZStd::any_numeric_cast<float>(&value, floatValue))
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{
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m_followDistance = AZ::GetClamp(m_followDistance - (floatValue * m_zoomSpeedScale), m_minFollowDistance, m_maxFollowDistance);
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}
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}
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} // namespace Camera
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