Sprite in SFML style in Qt6, OpenGL ES 2.0, C++, Python, JavaScript for Android, Desktop, and WebAssembly

[8Observer8]

Hello,

This is my example that I will explain in the current topic. SFML-style means that working with a sprite is like in SFML. There are methods of the Sprite class with the same names like in SFML:

    void setPosition(float x, float y);
    void setSize(float w, float h);
    void setTextureRect(const QString &spriteName);

The example parses a JSON file that was created in FreeTexturePacker.

Source code on GitHub:

• OpenGL ES 2.0, Qt6, C++
• OpenGL ES 2.0, PySide6, Python
• OpenGL ES 2.0, PyQt6, Python
• WebGL 1.0, JavaScript

Executables created by Qt C++:

• WebAssembly: https://65d032748f92293df6abc084--sweet-pavlova-c68026.netlify.app/
• EXE for Windows 10, 64-bit: sprite-in-sfml-style-opengles2-qt6-cpp-win10x64-exe.zip
• APK for Android 7-14: sprite-in-sfml-style-opengles2-qt6-cpp-android-7-14.apk

[SGaist]

Hi,

While the demonstration is nice, I wouldn't use assets from that company. They are pretty trigger sensitive when it relates to their material.

[8Observer8]

@SGaist I don't know, maybe they don't pay attention if someone makes demos for training and not for selling. I think none of them will find this topic. I’ll try to leave these assets for now, but if someone from their company writes, I’ll replace them with other assets.

[8Observer8]

What is the difference between JSON parsing on PySide6 and PyQt6. On PyQt6 you need to call the toDouble() method, but on PySide6 you don't:

PyQt6:

gravity = root["gravity"].toDouble()

PySide6:

gravity = root["gravity"]

main.py

import sys
 
from PyQt6.QtCore import QByteArray, QJsonDocument
from PyQt6.QtWidgets import QApplication, QWidget
 
 
class Window(QWidget):
 
    def __init__(self):
        super().__init__()
 
        content = "{ \"gravity\": -9.8 }"
        doc = QJsonDocument.fromJson(QByteArray(content.encode()))
        root = doc.object()
        gravity = root["gravity"].toDouble() # PyQt6
        # gravity = root["gravity"] # PySide6
        print("gravity =", gravity)
        print(type(gravity))
 
if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = Window()
    w.show()
    sys.exit(app.exec())

[SGaist]

@8Observer8 Good question, I currently don't know. You would need to compare the bindings generated by each variant to see what is done differently.

[8Observer8]

@SGaist Sorry for misleading you. It was not a question. Just a note.