Steve Pham
138 lines
4.6 KiB
C++
138 lines
4.6 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project
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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 "precompiled.h"
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#include "ScriptEventMethod.h"
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#include "ScriptEventsBindingBus.h"
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#include <AzCore/RTTI/BehaviorContext.h>
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#include <AzCore/Asset/AssetCommon.h>
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#include <ScriptEvents/ScriptEvent.h>
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#include <ScriptEvents/Internal/VersionedProperty.h>
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namespace ScriptEvents
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{
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ScriptEventMethod::ScriptEventMethod(AZ::BehaviorContext* behaviorContext, const ScriptEvent& definition, const AZStd::string eventName)
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: AZ::BehaviorMethod(behaviorContext)
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, m_busIdType(AZ::Uuid::CreateNull())
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, m_returnType(AZ::Uuid::CreateNull())
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, m_busBindingId()
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{
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m_name = eventName;
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const AZStd::string& busName = definition.GetName();
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m_busBindingId = AZ::Uuid::CreateName(busName.c_str());
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m_busIdType = definition.GetAddressType();
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Method method;
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if (!definition.FindMethod(eventName, method))
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{
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AZ_Warning("Script Events", false, "Method %s not found in Script Event %s", eventName.data(), busName.c_str());
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}
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m_result.m_name = "Result";
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if (!method.GetReturnTypeProperty().IsEmpty())
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{
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method.GetReturnTypeProperty().Get(m_returnType);
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Internal::Utils::BehaviorParameterFromType(m_returnType, false, m_result);
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}
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ReserveArguments(method.GetParameters().size() + 1);
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size_t index = 0;
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// BehaviorContext Ebus Events require an Id, it is passed in as the first parameter to the method.
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if (!m_busIdType.IsNull())
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{
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AZ::BehaviorValueParameter busId;
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Internal::Utils::BehaviorParameterFromType(m_busIdType, true, busId);
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m_behaviorParameters.emplace_back(busId);
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SetArgumentName(index, busId.m_name);
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SetArgumentToolTip(index, busId.m_name);
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++index;
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}
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AZStd::vector<AZStd::string> tests;
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for (const Parameter& parameter : method.GetParameters())
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{
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const AZStd::string& argumentName = parameter.GetName();
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SetArgumentName(index, argumentName);
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m_behaviorParameters.push_back();
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Internal::Utils::BehaviorParameterFromParameter(behaviorContext, parameter, m_argumentNames[index].c_str(), m_behaviorParameters.back());
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const AZStd::string& tooltip = parameter.GetTooltip();
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if (!tooltip.empty())
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{
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SetArgumentToolTip(index, tooltip.data());
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}
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++index;
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}
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//AZ_TracePrintf("Script Events", "Script Method: %s %s::%s (Arguments: %d)\n", m_returnType.ToString<AZStd::string>().c_str(), busName.c_str(), eventName.data(), method.GetParameters().size());
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}
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bool ScriptEventMethod::Call(AZ::BehaviorValueParameter* params, unsigned int paramCount, AZ::BehaviorValueParameter* returnValue) const
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{
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Internal::BindingRequest::BindingParameters parameters;
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parameters.m_eventName = m_name;
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parameters.m_address = ¶ms[0]; // The address is stored in the first parameter
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parameters.m_parameters = params + 1;
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parameters.m_parameterCount = paramCount - 1; // Minus the address
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parameters.m_returnValue = returnValue;
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Internal::BindingRequestBus::Event(m_busBindingId, &Internal::BindingRequest::Bind, parameters);
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if (returnValue && returnValue->m_onAssignedResult)
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{
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returnValue->m_onAssignedResult();
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}
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return true;
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}
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void ScriptEventMethod::ReserveArguments(size_t numArguments)
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{
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m_behaviorParameters.reserve(numArguments);
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m_argumentNames.resize(numArguments);
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m_argumentToolTips.resize(numArguments);
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}
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void ScriptEventMethod::SetArgumentName(size_t index, const AZStd::string& name)
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{
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if (index >= m_argumentNames.size())
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{
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m_argumentNames.resize(index + 1);
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}
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m_argumentNames[index] = name;
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}
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size_t ScriptEventMethod::GetMinNumberOfArguments() const
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{
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// Iterate from end of parameters and count the number of consecutive valid BehaviorValue objects
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size_t numDefaultArguments = 0;
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for (size_t i = GetNumArguments() - 1; i >= 0 && GetDefaultValue(i); --i, ++numDefaultArguments)
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{
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}
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return GetNumArguments() - numDefaultArguments;
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}
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AZ::BehaviorDefaultValuePtr ScriptEventMethod::GetDefaultValue(size_t) const
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{
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// Default values for Script Events are not implemented.
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return nullptr;
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}
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}
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