axmol/tests/cpp-tests/Classes/DrawPrimitivesTest/DrawPrimitivesTest.cpp

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 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

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#include "DrawPrimitivesTest.h"
#include "renderer/CCRenderer.h"
#include "renderer/CCCustomCommand.h"

USING_NS_AX;

using namespace std;

DrawPrimitivesTests::DrawPrimitivesTests()
{
    ADD_TEST_CASE(DrawNodeTest);
    ADD_TEST_CASE(Issue11942Test);
    ADD_TEST_CASE(BetterCircleRendering);
    ADD_TEST_CASE(Issue829Test);
}

string DrawPrimitivesBaseTest::title() const
{
    return "No title";
}

// DrawNodeTest
DrawNodeTest::DrawNodeTest()
{
    auto s = Director::getInstance()->getWinSize();

    auto draw = DrawNode::create();
    addChild(draw, 10);

    draw->drawPoint(Vec2(s.width / 2 - 120, s.height / 2 - 120), 10,
                    Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1));

    draw->drawPoint(Vec2(s.width / 2 + 120, s.height / 2 + 120), 10,
                    Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1));

    // draw 4 small points
    Vec2 position[] = {Vec2(60, 60), Vec2(70, 70), Vec2(60, 70), Vec2(70, 60)};
    draw->drawPoints(position, 4, 5, Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1));

    // draw a line
    draw->drawLine(Vec2(0, 0), Vec2(s.width, s.height), Color4F(1.0, 0.0, 0.0, 0.5));

    // draw a rectangle
    draw->drawRect(Vec2(23, 23), Vec2(7, 7), Color4F(1, 1, 0, 1));

    draw->drawRect(Vec2(15, 30), Vec2(30, 15), Vec2(15, 0), Vec2(0, 15),
                   Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1));

    // draw a circle
    draw->drawCircle(VisibleRect::center() + Vec2(140, 0), 100, AX_DEGREES_TO_RADIANS(90), 50, true, 1.0f, 2.0f,
                     Color4F(1.0f, 0.0f, 0.0f, 0.5f));

    draw->drawCircle(VisibleRect::center() - Vec2(140, 0), 50, AX_DEGREES_TO_RADIANS(90), 30, false,
                     Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));

    // Draw some beziers
    draw->drawQuadBezier(Vec2(s.width - 150, s.height - 150), Vec2(s.width - 70, s.height - 10),
                         Vec2(s.width - 10, s.height - 10), 10,
                         Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    draw->drawQuadBezier(Vec2(0.0f, s.height), Vec2(s.width / 2, s.height / 2), Vec2(s.width, s.height), 50,
                         Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    draw->drawCubicBezier(VisibleRect::center(), Vec2(VisibleRect::center().x + 30, VisibleRect::center().y + 50),
                          Vec2(VisibleRect::center().x + 60, VisibleRect::center().y - 50), VisibleRect::right(), 100,
                          Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    draw->drawCubicBezier(Vec2(s.width - 250, 40.0f), Vec2(s.width - 70, 100.0f), Vec2(s.width - 30, 250.0f),
                          Vec2(s.width - 10, s.height - 50), 10,
                          Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    auto array = PointArray::create(20);
    array->addControlPoint(Vec2(0.0f, 0.0f));
    array->addControlPoint(Vec2(80.0f, 80.0f));
    array->addControlPoint(Vec2(s.width - 80, 80.0f));
    array->addControlPoint(Vec2(s.width - 80, s.height - 80));
    array->addControlPoint(Vec2(80.0f, s.height - 80));
    array->addControlPoint(Vec2(80.0f, 80.0f));
    array->addControlPoint(Vec2(s.width / 2, s.height / 2));
    draw->drawCardinalSpline(array, 0.5f, 50, Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    auto array2 = PointArray::create(20);
    array2->addControlPoint(Vec2(s.width / 2, 30.0f));
    array2->addControlPoint(Vec2(s.width - 80, 30.0f));
    array2->addControlPoint(Vec2(s.width - 80, s.height - 80));
    array2->addControlPoint(Vec2(s.width / 2, s.height - 80));
    array2->addControlPoint(Vec2(s.width / 2, 30.0f));
    draw->drawCatmullRom(array2, 50, Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    // open random color poly
    Vec2 vertices[] = {Vec2(0.0f, 0.0f), Vec2(50.0f, 50.0f), Vec2(100.0f, 50.0f), Vec2(100.0f, 100.0f),
                       Vec2(50.0f, 100.0f)};
    draw->drawPoly(vertices, 5, false, Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));

    // closed random color poly
    Vec2 vertices2[] = {Vec2(30.0f, 130.0f), Vec2(30.0f, 230.0f), Vec2(50.0f, 200.0f)};
    draw->drawPoly(vertices2, 3, true, Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));

    // Draw 10 circles
    for (int i = 0; i < 10; i++)
    {
        draw->drawDot(Vec2(s.width / 2, s.height / 2), 10 * (10 - i),
                      Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));
    }

    // Draw polygons
    Vec2 points[] = {Vec2(s.height / 4, 0.0f), Vec2(s.width, s.height / 5), Vec2(s.width / 3 * 2, s.height)};
    draw->drawPolygon(points, sizeof(points) / sizeof(points[0]), Color4F(1.0f, 0.0f, 0.0f, 0.5f), 4,
                      Color4F(0.0f, 0.0f, 1.0f, 0.5f));

    // star poly (triggers buggs)
    {
        const float o = 80;
        const float w = 20;
        const float h = 50;
        Vec2 star[]   = {
            Vec2(o + w, o - h), Vec2(o + w * 2, o),                  // lower spike
            Vec2(o + w * 2 + h, o + w), Vec2(o + w * 2, o + w * 2),  // right spike
            //              {o +w, o+w*2+h}, {o,o+w*2},                 // top spike
            //              {o -h, o+w}, {o,o},                         // left spike
        };

        draw->drawPolygon(star, sizeof(star) / sizeof(star[0]), Color4F(1.0f, 0.0f, 0.0f, 0.5f), 1,
                          Color4F(0.0f, 0.0f, 1.0f, 1.0f));
    }

    // star poly (doesn't trigger bug... order is important un tesselation is supported.
    {
        const float o = 180;
        const float w = 20;
        const float h = 50;
        Vec2 star[]   = {
            Vec2(o, o),
            Vec2(o + w, o - h),
            Vec2(o + w * 2, o),  // lower spike
            Vec2(o + w * 2 + h, o + w),
            Vec2(o + w * 2, o + w * 2),  // right spike
            Vec2(o + w, o + w * 2 + h),
            Vec2(o, o + w * 2),  // top spike
            Vec2(o - h, o + w),  // left spike
        };

        draw->drawPolygon(star, sizeof(star) / sizeof(star[0]), Color4F(1.0f, 0.0f, 0.0f, 0.5f), 1,
                          Color4F(0.0f, 0.0f, 1.0f, 1.0f));
    }

    // draw a solid polygon
    Vec2 vertices3[] = {Vec2(60.0f, 160.0f), Vec2(70.0f, 190.0f), Vec2(100.0f, 190.0f), Vec2(90.0f, 160.0f)};
    draw->drawSolidPoly(vertices3, 4, Color4F(1.0f, 1.0f, 0.0f, 1.0f));

    // draw a solid rectangle
    draw->drawSolidRect(Vec2(10.0f, 10.0f), Vec2(20.0f, 20.0f), Color4F(1.0f, 1.0f, 0.0f, 1.0f));

    // draw a solid circle
    draw->drawSolidCircle(VisibleRect::center() + Vec2(140.0f, 0.0f), 40, AX_DEGREES_TO_RADIANS(90), 50, 2.0f, 2.0f,
                          Color4F(0.0f, 1.0f, 0.0f, 1.0f));

    // Draw segment
    draw->drawSegment(Vec2(20.0f, s.height), Vec2(20.0f, s.height / 2), 10, Color4F(0.0f, 1.0f, 0.0f, 1.0f));

    draw->drawSegment(Vec2(10.0f, s.height / 2), Vec2(s.width / 2, s.height / 2), 40, Color4F(1.0f, 0.0f, 1.0f, 0.5f));

    // Draw triangle
    draw->drawTriangle(Vec2(10.0f, 10.0f), Vec2(70.0f, 30.0f), Vec2(100.0f, 140.0f),
                       Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 0.5f));

    for (int i = 0; i < 100; i++)
    {
        draw->drawPoint(Vec2(i * 7.0f, 5.0f), (float)i / 5 + 1,
                        Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));
    }

    auto draw1 = DrawNode::create();
    this->addChild(draw1, 10);
    draw1->setLineWidth(4);
    draw1->drawLine(Vec2(0.0f, s.height), Vec2(s.width, s.height - 20), Color4F::YELLOW);
    draw1->drawLine(Vec2(0.0f, 0.0f), Vec2(s.width, s.height - 20), Color4F::YELLOW);

    draw->runAction(RepeatForever::create(Sequence::create(FadeIn::create(1.2), FadeOut::create(1.2), NULL)));
    draw1->runAction(RepeatForever::create(Sequence::create(FadeIn::create(1.2), FadeOut::create(1.2), NULL)));
}

string DrawNodeTest::title() const
{
    return "Test DrawNode";
}

string DrawNodeTest::subtitle() const
{
    return "Testing DrawNode - batched draws. Concave polygons are BROKEN";
}

//
// Issue11942Test
//
Issue11942Test::Issue11942Test()
{
    // DrawNode 0 ------------------------------------------
    auto draw0 = DrawNode::create();
    addChild(draw0, 10);

    // draw a circle thickness 10 
    draw0->setLineWidth(10);
    draw0->drawCircle(VisibleRect::center() - Vec2(140.0f, 40.0f), 50, AX_DEGREES_TO_RADIANS(90), 30, false,
                      Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));
    draw0->setLineWidth(1); // thickness 10 will replaced with thickness 1 (also for all 'same' draw commands before!)
    draw0->drawCircle(VisibleRect::center() - Vec2(140.0f, -40.0f), 50, AX_DEGREES_TO_RADIANS(90), 30, false,
                      Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));


    // DrawNode 1 ------------------------------------------
    auto draw1 = DrawNode::create();
    addChild(draw1, 10);

    // draw a second circle thickness 1  
    draw1->setLineWidth(1);
    draw1->drawCircle(VisibleRect::center() + Vec2(140.0f, 40.0f), 50, AX_DEGREES_TO_RADIANS(90), 30, false,
                      Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));
    draw1->setLineWidth(20); // thickness 1 will replaced with thickness 10 (also for all 'same' draw commands before!)
    draw1->drawCircle(VisibleRect::center() + Vec2(140.0f, -40.0f), 50, AX_DEGREES_TO_RADIANS(90), 30, false,
                      Color4F(AXRANDOM_0_1(), AXRANDOM_0_1(), AXRANDOM_0_1(), 1.0f));
}

string Issue11942Test::title() const
{
    return "GitHub Issue #11942 (axmol #137)";
}

string Issue11942Test::subtitle() const
{
    return "setLineWidth() change the WHOLE DrawNode object 'line with'";
}

//
// drawCircle new feature 
//
BetterCircleRendering::BetterCircleRendering()
{
    //Add lines to see the correct "scale of the 'rings'" changing the window size
    auto draw0 = DrawNode::create();
    draw0->setLineWidth(1);
    addChild(draw0, 10);

    for (float y = 0; y < VisibleRect::top().y; y += 10)
    {
        draw0->drawLine({VisibleRect::left().x, y}, {VisibleRect::right().x, y}, Color4B::GRAY);
    }
    initSliders();

    drawNode = DrawNode::create();
    addChild(drawNode, 10);
    thick = 0;
    scheduleUpdate();
}


void BetterCircleRendering::changeThickness(ax::Ref* pSender, ax::ui::Slider::EventType type)
{
    if (type == ax::ui::Slider::EventType::ON_PERCENTAGE_CHANGED)
    {
        ax::ui::Slider* sliderThickness = dynamic_cast<ax::ui::Slider*>(pSender);
        thick                           = sliderThickness->getPercent();
        _thickNessLabel->setString("setLineWidth(" + Value(thick).asString() + ")");
    }
}

void BetterCircleRendering::changeLineWidth(ax::Ref* pSender, ax::ui::Slider::EventType type)
{
    if (type == ax::ui::Slider::EventType::ON_PERCENTAGE_CHANGED)
    {
        ax::ui::Slider* sliderLineWidth = dynamic_cast<ax::ui::Slider*>(pSender);
        lineWidth                       = sliderLineWidth->getPercent();
        _lineWidthLabel->setString("drawCircle(pos, radius, ..., segemnts, ..., color, " + Value(lineWidth).asString() + ")");
    }
}

void BetterCircleRendering::initSliders()
{
    auto vsize             = Director::getInstance()->getVisibleSize();
    ax::ui::Slider* slider = ax::ui::Slider::create();
    slider->setPercent(0);
    slider->loadBarTexture("cocosui/sliderTrack.png");
    slider->loadSlidBallTextures("cocosui/sliderThumb.png", "cocosui/sliderThumb.png", "");
    slider->loadProgressBarTexture("cocosui/sliderProgress.png");
    slider->setPosition(Vec2(vsize.width / 2, vsize.height / 6));
    slider->addEventListener(AX_CALLBACK_2(BetterCircleRendering::changeThickness, this));

    auto ttfConfig  = TTFConfig("fonts/arial.ttf", 8);
    _thickNessLabel = Label::createWithTTF(ttfConfig, "setLineWidth(0)");
    addChild(_thickNessLabel, 20);
    _thickNessLabel->setPosition(Vec2(vsize.width / 2, vsize.height / 6 + 15));
    addChild(slider, 20);

    ax::ui::Slider* sliderLineWidth = ax::ui::Slider::create();
    sliderLineWidth->setPercent(0);
    sliderLineWidth->loadBarTexture("cocosui/sliderTrack.png");
    sliderLineWidth->loadSlidBallTextures("cocosui/sliderThumb.png", "cocosui/sliderThumb.png", "");
    sliderLineWidth->loadProgressBarTexture("cocosui/sliderProgress.png");
    sliderLineWidth->setPosition(Vec2(vsize.width / 2, vsize.height / 6 + 35));
    sliderLineWidth->addEventListener(AX_CALLBACK_2(BetterCircleRendering::changeLineWidth, this));

    _lineWidthLabel = Label::createWithTTF(ttfConfig, "drawCircle(pos, radius, ..., segments, ..., color, 0)");
    addChild(_lineWidthLabel, 20);
    _lineWidthLabel->setPosition(Vec2(vsize.width / 2, vsize.height / 6 + 50));
    addChild(sliderLineWidth, 20);
}

 void BetterCircleRendering::update(float dt)
 {
    drawNode->clear();
    drawNode->setLineWidth(thick); // value from the slider

    // Old behavior => faster but badly rendering if line width > 5 (= rings)
    drawNode->drawCircle(VisibleRect::center() + Vec2(120.0f, 0.0f), 60, AX_DEGREES_TO_RADIANS(90), 36, false, Color4F::RED);

    // New behavior => slower but good rendering if line width > 5
    auto color = Color4F::GREEN;
    if (thick <= lineWidth)
    {
        color = Color4F::RED;  // using the faster rendering internal method of drawCircle (old behavior)
    }
    drawNode->drawCircle(VisibleRect::center() - Vec2(120.0f, 0.0f), 60, AX_DEGREES_TO_RADIANS(90), 36, false, color,
                         lineWidth);
 }

string BetterCircleRendering::title() const
 {
    return "Rendering drawCircle";
}

string BetterCircleRendering::subtitle() const
{
    return "Green: smoother rendering; Red: faster but badly rendering";
}

Issue829Test::Issue829Test()
{
    Vec2 vertices0[] = {{50.0, 20.0}, {100.0, 0.0}, {80.0, 50.0}, {100.0, 100.0},
                        {50.0, 80.0}, {0.0, 100.0}, {20.0, 50.0}, {0, 0}};

    Vec2 vertices4[] = {{362, 148}, {326, 241}, {295, 219}, {258, 88}, {440, 129},
                        {370, 196}, {372, 275}, {348, 257}, {364, 148}};

    Vec2* ver[] = {vertices0, vertices4};

    DrawNode* drawNode[sizeof(ver) + 1];
    for (int i = 0; i < sizeof(ver); i++)
    {
        drawNode[i] = DrawNode::create();
        addChild(drawNode[i]);
    }

    drawNode[0]->drawPolygon(vertices0, sizeof(vertices0) / sizeof(vertices0[0]), Color4F(0.0f, 0.0f, 0.7f, 0.5f), 3,
                             Color4F(0.0f, 0.0f, 1.0f, 1.0f));
    drawNode[0]->setPosition({20, 200});
    drawDirection(vertices0, sizeof(vertices0) / sizeof(vertices0[0]), drawNode[0]->getPosition());

    drawNode[4]->drawPolygon(vertices4, sizeof(vertices4) / sizeof(vertices4[0]), Color4F(0.0f, 0.0f, 0.7f, 0.5f), 3,
                             Color4F(0.0f, 0.0f, 1.0f, 1.0f));
    drawNode[4]->setPosition({-70, -20});
    drawDirection(vertices4, sizeof(vertices4) / sizeof(vertices4[0]), drawNode[4]->getPosition());

    {
        const float o = 80;
        const float w = 20;
        const float h = 50;
        {  // star
            auto drawNode1 = DrawNode::create();
            addChild(drawNode1);
            drawNode1->setPosition(300, 100);
            Vec2 star[] = {
                Vec2(o, o),
                Vec2(o + w, o - h),
                Vec2(o + w * 2, o),  // lower spike
                Vec2(o + w * 2 + h, o + w),
                Vec2(o + w * 2, o + w * 2),  // right spike
                Vec2(o + w, o + w * 2 + h),
                Vec2(o, o + w * 2),  // top spike
                Vec2(o - h, o + w),  // left spike
            };

            drawNode1->drawPolygon(star, sizeof(star) / sizeof(star[0]), Color4F(0.0f, 0.0f, 0.7f, 0.5f), 1,
                                   Color4F(0.0f, 0.0f, 1.0f, 1.0f));

            drawDirection(star, sizeof(star) / sizeof(star[0]), drawNode1->getPosition());
        }

        {  // wrong order
            auto drawNode1 = DrawNode::create();
            addChild(drawNode1);
            drawNode1->setPosition(-80, 20);
            Vec2 wrongOrder[] = {Vec2(o + w, o - h), Vec2(o + w * 2, o), Vec2(o + w * 2 + h, o + w),
                                 Vec2(o + w * 2, o + w * 2)};

            drawNode1->drawPolygon(wrongOrder, sizeof(wrongOrder) / sizeof(wrongOrder[0]),
                                   Color4F(0.0f, 0.0f, 0.7f, 0.5f), 1, Color4F(1.0f, 0.0f, 0.0f, 1.0f));

            drawDirection(wrongOrder, sizeof(wrongOrder) / sizeof(wrongOrder[0]), drawNode1->getPosition());
        }
        {  // correct order
            Vec2 correctOrder[] = {Vec2(o + w * 2, o), Vec2(o + w * 2 + h, o + w), Vec2(o + w * 2, o + w * 2),
                                   Vec2(o + w, o - h)};
            auto drawNode2      = DrawNode::create();
            addChild(drawNode2);
            drawNode2->setPosition({-10, 20});
            drawNode2->drawPolygon(correctOrder, sizeof(correctOrder) / sizeof(correctOrder[0]),
                                   Color4F(0.0f, 0.0f, 0.7f, 0.5f), 1, Color4F(0.0f, 1.0f, 0.0f, 1.0f));

            drawDirection(correctOrder, sizeof(correctOrder) / sizeof(correctOrder[0]), drawNode2->getPosition());
        }
    }
}

void Issue829Test::drawDirection(const Vec2* vec, const int size, Vec2 offset)
{
    for (size_t i = 0; i < size; i++)
    {
        auto label = Label::createWithTTF(std::to_string(i).c_str(), "fonts/Marker Felt.ttf", 10);
        this->addChild(label);
        label->setPosition(vec[i] + offset);
    }
}

string Issue829Test::title() const
{
    return "GitHub Issue #829";
}

string Issue829Test::subtitle() const
{
    return "Red polygon has wrong order!";
}