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:

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.