axmol/tests/cpp-tests/Classes/Box2DTestBed/Box2DTestBed.cpp

/****************************************************************************
 * Copyright (c) 2021 @aismann; Peter Eismann, Germany; dreifrankensoft

 http://www.cocos2d-x.org

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 all copies or substantial portions of the Software.

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#include "platform/CCPlatformConfig.h"
#include "Box2DTestBed.h"
#include "extensions/cocos-ext.h"
#include "test.h"
#include "ImGuiEXT/CCImGuiEXT.h"

 //#include "renderer/CCRenderer.h"


USING_NS_CC;
USING_NS_CC_EXT;

static bool show_test_window = true;
static bool show_another_window = true;
static ImVec4 clear_color = ImColor(114, 144, 154);

#define kAccelerometerFrequency 30
#define FRAMES_BETWEEN_PRESSES_FOR_DOUBLE_CLICK 10

extern int g_testCount;

Settings settings;

extern cocos2d::Vec2 debugNodeOffset;
extern cocos2d::Vec2 physicsDebugNodeOffset;
cocos2d::Label* labelDebugDraw;

enum
{
	kTagBox2DNode,
};

extern cocos2d::DrawNode* drawBox2D;


Box2DTestBedTests::Box2DTestBedTests()
{
	for (int entryId = 0; entryId < g_testCount; ++entryId)
	{
		addTestCase(g_testEntries[entryId].name, [entryId]() {
			return Box2DTestBed::createWithEntryID(entryId);
			});
	}
}

//------------------------------------------------------------------
//
// Box2dTestBed
//
//------------------------------------------------------------------

Box2DTestBed::Box2DTestBed()
{
	debugNodeOffset = { 260, 70 };
}

Box2DTestBed::~Box2DTestBed()
{
	_eventDispatcher->removeEventListener(_touchListener);
}

Box2DTestBed* Box2DTestBed::createWithEntryID(int entryId)
{
	auto layer = new (std::nothrow) Box2DTestBed();
	layer->initWithEntryID(entryId);
	layer->autorelease();

	return layer;
}

bool Box2DTestBed::initWithEntryID(int entryId)
{
	if (!TestCase::init())
	{
		return false;
	}
	auto director = Director::getInstance();
	Vec2 visibleOrigin = director->getVisibleOrigin();
	Size visibleSize = director->getVisibleSize();

	m_entryID = entryId;

	Box2DView* view = Box2DView::viewWithEntryID(entryId);
	addChild(view, 0, kTagBox2DNode);
	view->setScale(15);
	view->setAnchorPoint(Vec2(0, 0));
	view->setPosition(visibleOrigin.x + visibleSize.width / 2, visibleOrigin.y + visibleSize.height / 3);
	auto label = Label::createWithTTF(view->title().c_str(), "fonts/arial.ttf", 28);
	addChild(label, 1);
	label->setPosition(visibleOrigin.x + visibleSize.width / 2, visibleOrigin.y + visibleSize.height - 50);

	// Adds touch event listener
	_touchListener = EventListenerTouchOneByOne::create();
	_touchListener->setSwallowTouches(true);

	_touchListener->onTouchBegan = CC_CALLBACK_2(Box2DTestBed::onTouchBegan, this);
	_touchListener->onTouchMoved = CC_CALLBACK_2(Box2DTestBed::onTouchMoved, this);

	_eventDispatcher->addEventListenerWithFixedPriority(_touchListener, 1);



	addChild(drawBox2D, 100);

	// Demo messageString
	labelDebugDraw = Label::createWithTTF("TEST", "fonts/Marker Felt.ttf", 8.0f);
	labelDebugDraw->setAnchorPoint(Vec2(0, 0));
	labelDebugDraw->setPosition(VisibleRect::left().x, VisibleRect::top().y - 20);
	labelDebugDraw->setColor(Color3B::WHITE);
	addChild(labelDebugDraw, 100);

	return true;
}

bool Box2DTestBed::onTouchBegan(Touch* touch, Event* event)
{
	return true;
}

void Box2DTestBed::onTouchMoved(Touch* touch, Event* event)
{
	auto diff = touch->getDelta();
	auto node = getChildByTag(kTagBox2DNode);
	auto currentPos = node->getPosition();
	node->setPosition(currentPos + diff);
}

void Box2DTestBed::onEnter() 
{
	Scene::onEnter();
	ImGuiEXT::getInstance()->addFont(FileUtils::getInstance()->fullPathForFilename("fonts/arial.ttf"));
	ImGuiEXT::getInstance()->addRenderLoop("#im01", CC_CALLBACK_0(Box2DTestBed::onDrawImGui, this), this);
}
void Box2DTestBed::onExit() 
{
	Scene::onExit();
	ImGuiEXT::getInstance()->removeRenderLoop("#im01");
}

void Box2DTestBed::onDrawImGui()
{
	//// 1. Show a simple window
	//// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug"
	//{
	//	static float f = 0.0f;
	//	ImGui::Text("Hello, world!");
	//	ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
	//	ImGui::ColorEdit3("clear color", (float*)&clear_color);
	//	if (ImGui::Button("Test Window")) show_test_window ^= 1;
	//	if (ImGui::Button("Another Window")) show_another_window ^= 1;
	//	ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
	//}

	//// 2. Show another simple window, this time using an explicit Begin/End pair
	//if (show_another_window)
	//{
	//	ImGui::SetNextWindowSize(ImVec2(170, 80), ImGuiCond_FirstUseEver);
	//	ImGui::Begin("Another Window", &show_another_window);

	//	ImGui::Text("Hello");
	//	ImGui::End();
	//}

	//// 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
	//if (show_test_window)
	//{
	//	ImGui::ShowDemoWindow();
	//}
}


//------------------------------------------------------------------
//
// Box2DView
//
//------------------------------------------------------------------
Box2DView::Box2DView(void)
{
}

Box2DView* Box2DView::viewWithEntryID(int entryId)
{
	Box2DView* pView = new (std::nothrow) Box2DView();

	pView->initWithEntryID(entryId);
	pView->autorelease();

	return pView;
}

bool Box2DView::initWithEntryID(int entryId)
{
	m_entry = g_testEntries + entryId;
	m_test = m_entry->createFcn();


	// Adds Touch Event Listener
	auto listener = EventListenerTouchOneByOne::create();
	listener->setSwallowTouches(true);

	listener->onTouchBegan = CC_CALLBACK_2(Box2DView::onTouchBegan, this);
	listener->onTouchMoved = CC_CALLBACK_2(Box2DView::onTouchMoved, this);
	listener->onTouchEnded = CC_CALLBACK_2(Box2DView::onTouchEnded, this);



	_eventDispatcher->addEventListenerWithFixedPriority(listener, -10);
	_touchListener = listener;

	auto keyboardListener = EventListenerKeyboard::create();
	keyboardListener->onKeyPressed = CC_CALLBACK_2(Box2DView::onKeyPressed, this);
	keyboardListener->onKeyReleased = CC_CALLBACK_2(Box2DView::onKeyReleased, this);
	_eventDispatcher->addEventListenerWithFixedPriority(keyboardListener, -11);
	_keyboardListener = keyboardListener;

	return true;
}

std::string Box2DView::title() const
{
	std::string title = std::string(m_entry->category) + std::string(":") + std::string(m_entry->name);
	return title;
}


void Box2DView::draw(Renderer* renderer, const Mat4& transform, uint32_t flags)
{
	Layer::draw(renderer, transform, flags);

	_customCmd.init(_globalZOrder, transform, flags);
	_customCmd.func = CC_CALLBACK_0(Box2DView::onDraw, this, transform, flags);
	renderer->addCommand(&_customCmd);
}

void Box2DView::onDraw(const Mat4& transform, uint32_t flags)
{
	//Director* director = Director::getInstance();
	//CCASSERT(nullptr != director, "Director is null when setting matrix stack");
	//director->pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
	//director->loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW, transform);

	//drawBox2D->clear();
	//m_test->Step(&settings);
	//m_test->m_world->DebugDraw();

	//director->popMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);

	Director* director = Director::getInstance();
	CCASSERT(nullptr != director, "Director is null when setting matrix stack");

	auto oldMV = director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
	director->loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW, _modelViewMV);
//	world->DebugDraw();

	drawBox2D->clear();
	m_test->Step(&settings);
	//m_test->m_world->DebugDraw();

	director->loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW, oldMV);
}

Box2DView::~Box2DView()
{
	// Removes Touch Event Listener
	_eventDispatcher->removeEventListener(_touchListener);
	_eventDispatcher->removeEventListener(_keyboardListener);
	delete m_test;
}

bool Box2DView::onTouchBegan(Touch* touch, Event* event)
{
	auto touchLocation = touch->getLocation();

	auto nodePosition = convertToNodeSpace(touchLocation);
	log("Box2DView::onTouchBegan, pos: %f,%f -> %f,%f", touchLocation.x, touchLocation.y, nodePosition.x, nodePosition.y);

	m_test->MouseDown(b2Vec2(nodePosition.x, nodePosition.y));

	return false;
}

void Box2DView::onTouchMoved(Touch* touch, Event* event)
{
	auto touchLocation = touch->getLocation();
	auto nodePosition = convertToNodeSpace(touchLocation);

	log("Box2DView::onTouchMoved, pos: %f,%f -> %f,%f", touchLocation.x, touchLocation.y, nodePosition.x, nodePosition.y);

	m_test->MouseMove(b2Vec2(nodePosition.x, nodePosition.y));
}

void Box2DView::onTouchEnded(Touch* touch, Event* event)
{
	auto touchLocation = touch->getLocation();
	auto nodePosition = convertToNodeSpace(touchLocation);

	log("Box2DView::onTouchEnded, pos: %f,%f -> %f,%f", touchLocation.x, touchLocation.y, nodePosition.x, nodePosition.y);

	m_test->MouseUp(b2Vec2(nodePosition.x, nodePosition.y));
}

void Box2DView::onKeyPressed(EventKeyboard::KeyCode code, Event* event)
{
	log("Box2dView:onKeyPressed, keycode: %d", static_cast<int>(code));
//	m_test->Keyboard(static_cast<unsigned char>(code));
	m_test->Keyboard((static_cast<int>(code) - 59));
}

void Box2DView::onKeyReleased(EventKeyboard::KeyCode code, Event* event)
{
	log("onKeyReleased, keycode: %d", static_cast<int>(code));
//	m_test->KeyboardUp(static_cast<unsigned char>(code));
	m_test->Keyboard((static_cast<int>(code) - 59));
}

//void Box2DView::onEnter()
//{
//	onEnter();
//	ImGuiEXT::getInstance()->addFont(FileUtils::getInstance()->fullPathForFilename("fonts/arial.ttf"));
//	ImGuiEXT::getInstance()->addRenderLoop("#im01", CC_CALLBACK_0(Box2DView::onDrawImGui, this), this->getScene());
//
//}
//void Box2DView::onExit()
//{
//	ImGuiEXT::getInstance()->removeRenderLoop("#im01");
//	onExit();
//}

void Box2DView::onDrawImGui()
{
	// 1. Show a simple window
	// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug"
	{
		static float f = 0.0f;
		ImGui::Text("Hello, world!");
		ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
		ImGui::ColorEdit3("clear color", (float*)&clear_color);
		if (ImGui::Button("Test Window")) show_test_window ^= 1;
		if (ImGui::Button("Another Window")) show_another_window ^= 1;
		ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
	}

	// 2. Show another simple window, this time using an explicit Begin/End pair
	if (show_another_window)
	{
		ImGui::SetNextWindowSize(ImVec2(170, 80), ImGuiCond_FirstUseEver);
		ImGui::Begin("Another Window", &show_another_window);

		ImGui::Text("Hello");
		ImGui::End();
	}

	// 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
	if (show_test_window)
	{
		ImGui::ShowDemoWindow();
	}
}