Topics

1

Window / Class for multi-layer sprites rendering

« on: July 05, 2024, 11:14:11 am »

Hello there
I've been trying to create a solution for the ability to regulate at which layer the sprite will be drawn. Basically I created a class that does the same thing as sf::RenderWindow does, except setting the priority in the rendering.
Here is how it looks:

winhndl.h:

#pragma once
#include <SFML/Graphics.hpp>
#include <vector>

class WindowHandler
{
private:
    sf::RenderWindow win;
    std::vector<sf::Drawable> buffer[5];
public:
    WindowHandler(const sf::RenderWindow& window);

    void draw(const sf::Drawable& targ, int priority); // 0 - top priority, 4 - bottom priority
    void render();
    void setView(const sf::View& camera);
};
 

winhndl.cpp:

#include "winhndl.h"

WindowHandler::WindowHandler(const sf::RenderWindow& window)
{
    win.create(window.getSystemHandle(), window.getSettings());
}

void WindowHandler::draw(const sf::Drawable& targ, int priority)
{
    buffer[priority].push_back(targ);
}

void WindowHandler::render()
{
    win.clear();
    for(int i = 4; i >= 0; i--)
    {
        for(const auto& t : buffer[i])
        {
            win.draw(t);
        }
        buffer[i].clear();
    }
    win.display();
}

void WindowHandler::setView(const sf::View& camera)
{
    win.setView(camera);
}
 

But when I build the project I am met with the two errors:

invalid new-expression of abstract class type 'sf::Drawable'

static assertion failed: result type must be constructible from input type

I am not even sure if I have chosen the right datatype for buffer array. I have been stuck on this problem for a few days now.

Thanks in advance

2

General / [SOLVED] How to add new class files to CMakeLists

« on: June 16, 2024, 09:00:28 pm »

Hello,
I have been getting fails every time CMake builts the project:

[main] Building folder: sfml-cmake all
[build] Starting build
[proc] Executing command: D:\Prgrams\CMake\bin\cmake.EXE --build d:/VcProj/sfml-cmake/build --config Debug --target all --
[build] [1/2  50% :: 1.086] Building CXX object CMakeFiles/main.dir/src/main.cpp.obj
[build] [2/2 100% :: 2.083] Linking CXX executable bin\main.exe
[build] FAILED: bin/main.exe
[build] C:\WINDOWS\system32\cmd.exe /C "C:\WINDOWS\system32\cmd.exe /C "cd /D D:\VcProj\sfml-cmake\build && D:\Prgrams\CMake\bin\cmake.exe -E copy D:/VcProj/sfml-cmake/build/_deps/sfml-src/extlibs/bin/x64/openal32.dll D:/VcProj/sfml-cmake/build/bin && cd D:\VcProj\sfml-cmake\build" && C:\msys64\ucrt64\bin\c++.exe -g  CMakeFiles/main.dir/src/main.cpp.obj -o bin\main.exe -Wl,--out-implib,libmain.dll.a -Wl,--major-image-version,0,--minor-image-version,0  _deps/sfml-build/lib/libsfml-graphics-s-d.a  _deps/sfml-build/lib/libsfml-window-s-d.a  _deps/sfml-build/lib/libsfml-system-s-d.a  -lopengl32  -lwinmm  -lgdi32  _deps/sfml-src/extlibs/libs-mingw/x64/libfreetype.a  -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 && cd ."
[build] C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles/main.dir/src/main.cpp.obj: in function `main':
[build] D:/VcProj/sfml-cmake/src/main.cpp:9: undefined reference to `Game::update()'
[build] C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: D:/VcProj/sfml-cmake/src/main.cpp:10: undefined reference to `Game::render()'
[build] C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: D:/VcProj/sfml-cmake/src/main.cpp:7: undefined reference to `Game::isRunning()'
[build] collect2.exe: error: ld returned 1 exit status
[build] ninja: build stopped: subcommand failed.
[proc] The command: D:\Prgrams\CMake\bin\cmake.EXE --build d:/VcProj/sfml-cmake/build --config Debug --target all -- exited with code: 1
[driver] Build completed: 00:00:02.171
[build] Build finished with exit code 1

But I figure that since my code uses classes from external files, it can only result in a failed build. So the only problem I'm left with is how do I link new CPP and header files to the CMakeLists.txt?

For the reference, here are the contents of main.cpp:

#include "game.h"

int main()
{
    Game game;

    while(game.isRunning())
    {
        game.update();
        game.render();
    }
 
}

Configuration:

• Windows 10
• C++ MinGW 13.1.0
• CMake template from github
• VS Code

Thanks in advance

3

General / Cannot Launch or Debug but can Compile [SOLVED]

« on: June 09, 2024, 11:44:38 am »

Hi,

• Windows 10
• VS Code
• C++ MinGW 13.1.0
• SFML 2.6.1
• Makefile

I can compile and execute the app all fine, but when I try to launch or debug the cpp file (by CTRL+F5), VS Code always gives me the same error:

SFML/Graphics.hpp: No such file or directory

I have tried changing the libs to their debug versions, but to no avail.


main.cpp:

#include <SFML/Graphics.hpp>

int main()
{
    //...

    return 0;
}

tasks.json:

{
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++.exe build active file",
            "command": "D:\\Prgrams\\MinGW\\mingw64\\bin\\g++.exe",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}\\${fileBasenameNoExtension}.exe",
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ],
    "version": "2.0.0"
}

Makefile:

all: compile linkdebug

compile:
   g++ -c main.cpp -I"D:\Prgrams\SFML\SFML-2.6.1\include" -DSFML_STATIC

link:
   g++ main.o -o main -L"D:\Prgrams\SFML\SFML-2.6.1\lib" -lsfml-graphics-s -lsfml-window-s -lsfml-system-s -lopengl32 -lfreetype -lwinmm -lgdi32 -mwindows

linkdebug:
   g++ main.o -o main -L"D:\Prgrams\SFML\SFML-2.6.1\lib" -lsfml-graphics-s-d -lsfml-window-s-d -lsfml-system-s-d -lopengl32 -lfreetype -lwinmm -lgdi32 -mwindows

clean:
   rm -f main *.o

Thanks in advance