Exception thrown at Render() if CustomWidget has blocks[i].SetPixmap(not member pixmap) in Draw()

Dreikblack · July 12, 2023

I think block.SetPixmap work fine if a pixmap as member set in but with if it's another pixmap (to make few different icons for different blocks) i have an exception at Render(). An example:

#include "UltraEngine.h"

using namespace UltraEngine;

class NewWidget : public Widget
{
protected:
    virtual void Draw(const int x, const int y, const int width, const int height)
    {
        for (int i = 0; i < 4; i++)
        {

            blocks[i].hidden = false;
            blocks[i].position = iVec2(i * 64, 0);
            blocks[i].size = iVec2(64, 64);
            blocks[i].filter = pixmapfilter;
            blocks[i].color = Vec4(1);
            auto px = LoadPixmap("https://raw.githubusercontent.com/UltraEngine/Documentation/master/Assets/Materials/Ground/dirt01.dds");
            blocks[i].SetPixmap(px);
        }
    }

public:
    static shared_ptr<NewWidget> create(const int x, const int y, const int width, const int height, shared_ptr<Widget> parent, const int style = 0)
    {
        struct Struct : public NewWidget {
        };
        auto instance = std::make_shared<Struct>();
        instance->Initialize("", x, y, width, height, parent, style);
        return instance;
    }

    NewWidget()
    {
        blocks.resize(4);
    }
};

int main(int argc, const char* argv[])
{
    //Get the displays
    auto displays = GetDisplays();

    //Create a window
    auto window = CreateWindow("Ultra Engine", 0, 0, 1920, 1080, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);

    //Create a framebuffer
    auto framebuffer = CreateFramebuffer(window);

    //Create a world
    auto world = CreateWorld();

    //Create a camera    
    auto camera = CreateCamera(world);
    camera->SetClearColor(0.6);
    camera->SetFov(90);
    camera->SetRotation(54.736f, 45, 0);
    camera->SetPosition(0, 4, 0);

    auto sz = framebuffer->GetSize();

    // Load a font
    auto font = LoadFont("Fonts/arial.ttf");

    // Create user interface
    auto ui = CreateInterface(world, font, framebuffer->GetSize());
    ui->SetRenderLayers(2);
    ui->root->SetColor(0.0f, 0.0f, 0.0f, 0.0f);

    // Create ui camera
    auto uiCamera = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uiCamera->SetPosition(float(framebuffer->GetSize().x) * 0.5f, float(framebuffer->GetSize().y) * 0.5f, 0);
    uiCamera->SetRenderLayers(2);
    uiCamera->SetClearMode(CLEAR_DEPTH);

    auto widget = NewWidget::create(0, 0, 64 * 4, 64, ui->root, 0);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-100, 100);
    light->SetArea(100, 100);
    light->SetRotation(35, 35, 0);
    light->SetColor(2);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        world->Update();
        world->Render(framebuffer, false);
    }
    return 0;
}

klepto2 · July 12, 2023

Try it like this:

class NewWidget : public Widget
{
protected:
    virtual void Draw(const int x, const int y, const int width, const int height)
    {
        if (blocks.size() < 4)
        {
            for (int i = 0; i < 4; i++)
            {
                auto px = LoadPixmap("https://raw.githubusercontent.com/UltraEngine/Documentation/master/Assets/Materials/Ground/dirt01.dds");
                int block = AddBlock(px, iVec2(i * 64, 0), Vec4(1));
                blocks[block].size = iVec2(64, 64);
            }
        }
    }

public:
    static shared_ptr<NewWidget> create(const int x, const int y, const int width, const int height, shared_ptr<Widget> parent, const int style = 0)
    {
        struct Struct : public NewWidget {
        };
        auto instance = std::make_shared<Struct>();
        instance->Initialize("", x, y, width, height, parent, style);
        return instance;
    }

    NewWidget()
    {
        
        
    }
};