mirror of
https://github.com/Heretek-AI/GDevelop.git
synced 2026-07-23 18:45:48 -04:00
Florian
270 lines
13 KiB
C++
270 lines
13 KiB
C++
/**
|
|
|
|
Game Develop - Function Extension
|
|
Copyright (c) 2008-2013 Florian Rival (Florian.Rival@gmail.com)
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
|
|
3. This notice may not be removed or altered from any source
|
|
distribution.
|
|
|
|
*/
|
|
|
|
#include "GDCpp/ExtensionBase.h"
|
|
#include "GDCore/Tools/Version.h"
|
|
#include "GDCore/Events/ExpressionsCodeGeneration.h"
|
|
#include "GDCore/Events/EventsCodeGenerationContext.h"
|
|
#include "GDCore/Events/EventsCodeGenerator.h"
|
|
#include "GDCore/Events/EventsCodeNameMangler.h"
|
|
#include "GDCpp/CppPlatform.h"
|
|
#include "GDCpp/Project.h"
|
|
#include "GDCpp/Scene.h"
|
|
#include "GDCpp/CommonTools.h"
|
|
#if defined(GD_IDE_ONLY)
|
|
#include "GDCore/Events/ExpressionParser.h"
|
|
#include "GDCore/Events/Instruction.h"
|
|
#endif
|
|
#include "FunctionEvent.h"
|
|
#include <boost/version.hpp>
|
|
|
|
/**
|
|
* \brief This class declares information about the extension.
|
|
*/
|
|
class Extension : public ExtensionBase
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Constructor of an extension declares everything the extension contains : Objects, actions, conditions and expressions.
|
|
*/
|
|
Extension()
|
|
{
|
|
SetExtensionInformation("Function",
|
|
_("Function events"),
|
|
_("Extension allowing to use events behaving as functions."),
|
|
"Florian Rival",
|
|
"zlib/libpng License ( Open Source )");
|
|
|
|
#if defined(GD_IDE_ONLY)
|
|
|
|
{
|
|
class CodeGenerator : public gd::InstructionMetadata::ExtraInformation::CustomCodeGenerator
|
|
{
|
|
virtual std::string GenerateCode(gd::Instruction & instruction, gd::EventsCodeGenerator & codeGenerator, gd::EventsCodeGenerationContext & context)
|
|
{
|
|
codeGenerator.AddGlobalDeclaration(FunctionEvent::globalDeclaration);
|
|
std::string functionName = instruction.GetParameter(0).GetPlainString();
|
|
const gd::Project & project = codeGenerator.GetProject();
|
|
const gd::Layout & scene = codeGenerator.GetLayout();
|
|
|
|
boost::shared_ptr<FunctionEvent> functionEvent = FunctionEvent::SearchForFunctionInEvents(scene.GetEvents(), functionName);
|
|
if ( functionEvent == boost::shared_ptr<FunctionEvent>() )
|
|
{
|
|
std::cout << "Function \""+functionName+"\" not found!" << std::endl;
|
|
return "//Function \""+functionName+"\" not found.\n";
|
|
}
|
|
|
|
std::string code;
|
|
|
|
//Generate code for objects passed as arguments
|
|
std::string objectsAsArgumentCode;
|
|
{
|
|
objectsAsArgumentCode += "runtimeContext->ClearObjectListsMap()";
|
|
std::vector<std::string> realObjects = codeGenerator.ExpandObjectsName(functionEvent->GetObjectsPassedAsArgument(), context);
|
|
for (unsigned int i = 0;i<realObjects.size();++i)
|
|
{
|
|
context.EmptyObjectsListNeeded(realObjects[i]);
|
|
objectsAsArgumentCode += ".AddObjectListToMap(\""+codeGenerator.ConvertToString(realObjects[i])+"\", "+ManObjListName(realObjects[i])+")";
|
|
}
|
|
objectsAsArgumentCode += ".ReturnObjectListsMap()";
|
|
}
|
|
|
|
//Generate code for evaluating parameters
|
|
code += "std::vector<std::string> functionParameters;\n";
|
|
for (unsigned int i = 1;i<8;++i)
|
|
{
|
|
std::string parameterCode;
|
|
gd::CallbacksForGeneratingExpressionCode callbacks(parameterCode, codeGenerator, context);
|
|
gd::ExpressionParser parser(instruction.GetParameter(i).GetPlainString());
|
|
parser.ParseStringExpression(CppPlatform::Get(), project, scene, callbacks);
|
|
if (parameterCode.empty()) parameterCode = "\"\"";
|
|
|
|
code += "functionParameters.push_back("+parameterCode+");\n";
|
|
}
|
|
code += "std::vector<std::string> * oldFunctionParameters = currentFunctionParameters;\n";
|
|
code += "currentFunctionParameters = &functionParameters;\n";
|
|
|
|
code += FunctionEvent::MangleFunctionName(*functionEvent)+"(runtimeContext, "+objectsAsArgumentCode+");\n";
|
|
code += "currentFunctionParameters = oldFunctionParameters;\n";
|
|
|
|
return code;
|
|
};
|
|
};
|
|
|
|
gd::InstructionMetadata::ExtraInformation::CustomCodeGenerator * codeGenerator = new CodeGenerator; //Need for code to compile
|
|
|
|
AddAction("LaunchFunction",
|
|
_("Launch a function"),
|
|
_("Launch a function"),
|
|
_("Launch _PARAM0_ (_PARAM1_, _PARAM2_, _PARAM3_, _PARAM4_, _PARAM5_, _PARAM6_, _PARAM7_)"),
|
|
_("Functions"),
|
|
"res/actions/function24.png",
|
|
"res/actions/function.png")
|
|
|
|
.AddParameter("", _("Name of the function"))
|
|
.AddParameter("string", _("Parameter 1"), "", true)
|
|
.AddParameter("string", _("Parameter 2"), "", true)
|
|
.AddParameter("string", _("Parameter 3"), "", true)
|
|
.AddParameter("string", _("Parameter 4"), "", true)
|
|
.AddParameter("string", _("Parameter 5"), "", true)
|
|
.AddParameter("string", _("Parameter 6"), "", true)
|
|
.AddParameter("string", _("Parameter 7"), "", true)
|
|
.codeExtraInformation.SetCustomCodeGenerator(boost::shared_ptr<gd::InstructionMetadata::ExtraInformation::CustomCodeGenerator>(codeGenerator));
|
|
}
|
|
|
|
{
|
|
|
|
class CodeGen : public gd::EventMetadata::CodeGenerator
|
|
{
|
|
virtual std::string Generate(gd::BaseEvent & event_, gd::EventsCodeGenerator & codeGenerator,
|
|
gd::EventsCodeGenerationContext & /* The function has nothing to do with the current context */)
|
|
{
|
|
FunctionEvent & event = dynamic_cast<FunctionEvent&>(event_);
|
|
|
|
//Declaring the pointer to the function parameters
|
|
codeGenerator.AddGlobalDeclaration(event.globalDeclaration);
|
|
|
|
//Declaring function prototype.
|
|
codeGenerator.AddGlobalDeclaration("void "+FunctionEvent::MangleFunctionName(event)+"(RuntimeContext *, std::map <std::string, std::vector<RuntimeObject*> *>);\n");
|
|
|
|
//Generating function code:
|
|
std::string functionCode;
|
|
functionCode += "\nvoid "+FunctionEvent::MangleFunctionName(event)+"(RuntimeContext * runtimeContext, std::map <std::string, std::vector<RuntimeObject*> *> objectsListsMap)\n{\n";
|
|
|
|
gd::EventsCodeGenerationContext callerContext;
|
|
{
|
|
std::vector<std::string> realObjects = codeGenerator.ExpandObjectsName(event.GetObjectsPassedAsArgument(), callerContext);
|
|
for (unsigned int i = 0;i<realObjects.size();++i)
|
|
{
|
|
callerContext.EmptyObjectsListNeeded(realObjects[i]);
|
|
functionCode += "std::vector<RuntimeObject*> "+ManObjListName(realObjects[i]) + ";\n";
|
|
functionCode += "if ( objectsListsMap[\""+realObjects[i]+"\"] != NULL ) "+ManObjListName(realObjects[i])+" = *objectsListsMap[\""+realObjects[i]+"\"];\n";
|
|
}
|
|
}
|
|
functionCode += "{";
|
|
|
|
gd::EventsCodeGenerationContext context;
|
|
context.InheritsFrom(callerContext);
|
|
|
|
//Generating function body code
|
|
std::string conditionsCode = codeGenerator.GenerateConditionsListCode(event.GetConditions(), context);
|
|
std::string actionsCode = codeGenerator.GenerateActionsListCode(event.GetActions(), context);
|
|
std::string subeventsCode = codeGenerator.GenerateEventsListCode(event.GetSubEvents(), context);
|
|
|
|
functionCode += codeGenerator.GenerateObjectsDeclarationCode(context);
|
|
std::string ifPredicat = "true";
|
|
for (unsigned int i = 0;i<event.GetConditions().size();++i)
|
|
ifPredicat += " && condition"+ToString(i)+"IsTrue";
|
|
|
|
functionCode += conditionsCode;
|
|
functionCode += "if (" +ifPredicat+ ")\n";
|
|
functionCode += "{\n";
|
|
functionCode += actionsCode;
|
|
if ( event.HasSubEvents() ) //Sub events
|
|
{
|
|
functionCode += "\n{\n";
|
|
functionCode += subeventsCode;
|
|
functionCode += "}\n";
|
|
}
|
|
functionCode += "}\n";
|
|
|
|
functionCode += "}\n"; //Context end
|
|
functionCode += "}\n"; //Function end
|
|
codeGenerator.AddCustomCodeOutsideMain(functionCode);
|
|
|
|
return "";
|
|
}
|
|
};
|
|
gd::EventMetadata::CodeGenerator * codeGen = new CodeGen;
|
|
|
|
AddEvent("Function",
|
|
_("Function"),
|
|
_("Function event : An event which is launched only thanks to action \"Launch a function\""),
|
|
"",
|
|
"res/function.png",
|
|
boost::shared_ptr<gd::BaseEvent>(new FunctionEvent))
|
|
.SetCodeGenerator(boost::shared_ptr<gd::EventMetadata::CodeGenerator>(codeGen));
|
|
}
|
|
|
|
{
|
|
class CodeGenerator : public gd::StrExpressionMetadata::ExtraInformation::CustomCodeGenerator
|
|
{
|
|
virtual std::string GenerateCode(const std::vector<gd::Expression> & parameters, gd::EventsCodeGenerator & codeGenerator, gd::EventsCodeGenerationContext & context)
|
|
{
|
|
codeGenerator.AddGlobalDeclaration(FunctionEvent::globalDeclaration);
|
|
codeGenerator.AddIncludeFile("Function/FunctionTools.h");
|
|
const gd::Project & game = codeGenerator.GetProject();
|
|
const gd::Layout & scene = codeGenerator.GetLayout();
|
|
|
|
//Generate code for evaluating index
|
|
std::string expression;
|
|
gd::CallbacksForGeneratingExpressionCode callbacks(expression, codeGenerator, context);
|
|
gd::ExpressionParser parser(parameters[0].GetPlainString());
|
|
if (!parser.ParseMathExpression(codeGenerator.GetPlatform(), game, scene, callbacks) || expression.empty()) expression = "0";
|
|
|
|
std::string code;
|
|
|
|
code += "GDpriv::FunctionTools::GetSafelyStringFromVector(currentFunctionParameters, "+expression+")";
|
|
|
|
return code;
|
|
};
|
|
};
|
|
|
|
gd::StrExpressionMetadata::ExtraInformation::CustomCodeGenerator * codeGenerator = new CodeGenerator; //Need for code to compile
|
|
|
|
AddStrExpression("Parameter",
|
|
_("Parameter of the current function"),
|
|
_("Return the text contained in a parameter of the currently launched function"),
|
|
_("Function"),
|
|
"res/function.png")
|
|
.AddParameter("expression", _("Number of the parameter ( Parameters start at 0 ! )"))
|
|
.codeExtraInformation.SetCustomCodeGenerator(boost::shared_ptr<gd::StrExpressionMetadata::ExtraInformation::CustomCodeGenerator>(codeGenerator));
|
|
}
|
|
#endif
|
|
|
|
GD_COMPLETE_EXTENSION_COMPILATION_INFORMATION();
|
|
};
|
|
virtual ~Extension() {};
|
|
};
|
|
|
|
/**
|
|
* Used by Game Develop to create the extension class
|
|
* -- Do not need to be modified. --
|
|
*/
|
|
extern "C" ExtensionBase * GD_EXTENSION_API CreateGDExtension() {
|
|
return new Extension;
|
|
}
|
|
|
|
/**
|
|
* Used by Game Develop to destroy the extension class
|
|
* -- Do not need to be modified. --
|
|
*/
|
|
extern "C" void GD_EXTENSION_API DestroyGDExtension(ExtensionBase * p) {
|
|
delete p;
|
|
}
|
|
|