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| 1 | +# How to Make Your Own Objects in InGame |
| 2 | + |
| 3 | +This guide explains how to create custom objects (UI components) for use with the [InGame](https://github.com/Natuworkguy/InGame) library, following the exact conventions and code style used by the InGame developers in [`src/ingame/objects.py`](https://github.com/Natuworkguy/InGame/blob/main/src/ingame/objects.py). |
| 4 | + |
| 5 | +--- |
| 6 | + |
| 7 | +## 1. Inherit from the `Object` Base Class |
| 8 | + |
| 9 | +All custom objects must inherit from the `Object` abstract base class: |
| 10 | + |
| 11 | +```python |
| 12 | +from abc import ABC, abstractmethod |
| 13 | + |
| 14 | +class Object(ABC): |
| 15 | + def __init__(self) -> None: |
| 16 | + ... |
| 17 | + |
| 18 | + @abstractmethod |
| 19 | + def config(self) -> None: |
| 20 | + ... |
| 21 | + |
| 22 | + @abstractmethod |
| 23 | + def destroy(self) -> None: |
| 24 | + ... |
| 25 | +``` |
| 26 | + |
| 27 | +This ensures all objects provide `config()` and `destroy()` methods. |
| 28 | + |
| 29 | +--- |
| 30 | + |
| 31 | +## 2. Implement the Required Methods |
| 32 | + |
| 33 | +A custom object should: |
| 34 | + |
| 35 | +- Accept a `Screen` instance as the first argument (`screen_obj`) |
| 36 | +- Optionally accept a `packargs` dictionary for packing options |
| 37 | +- Accept further widget-specific keyword arguments (`**kwargs`) |
| 38 | +- Create a tkinter widget (e.g., `tk.Button`, `tk.Label`, etc.) as an attribute |
| 39 | +- Use `pack()` for geometry management, filtering out `None` values from `packargs` |
| 40 | +- Implement `config()` and `destroy()` methods |
| 41 | + |
| 42 | +### Example: Custom Widget Template |
| 43 | + |
| 44 | +```python |
| 45 | +import tkinter as tk |
| 46 | +from ingame.core import Screen |
| 47 | +from ingame.objects import Object |
| 48 | + |
| 49 | +class CustomWidget(Object): |
| 50 | + def __init__( |
| 51 | + self, |
| 52 | + screen_obj: Screen, |
| 53 | + /, |
| 54 | + packargs: dict = None, |
| 55 | + **kwargs |
| 56 | + ) -> None: |
| 57 | + if not isinstance(screen_obj, Screen): |
| 58 | + raise TypeError("screen_obj must be an instance of Screen") |
| 59 | + |
| 60 | + if packargs is None: |
| 61 | + packargs = {} |
| 62 | + |
| 63 | + self.widget_obj = tk.Label(screen_obj.root, **kwargs) # Replace with desired widget type |
| 64 | + self.widget_obj.pack(**{k: v for k, v in packargs.items() if v is not None}) |
| 65 | + |
| 66 | + def config(self, **kwargs) -> None: |
| 67 | + self.widget_obj.config(**kwargs) |
| 68 | + |
| 69 | + def destroy(self) -> None: |
| 70 | + self.widget_obj.destroy() |
| 71 | +``` |
| 72 | + |
| 73 | +--- |
| 74 | + |
| 75 | +## 3. Example from InGame: Button |
| 76 | + |
| 77 | +```python |
| 78 | +class Button(Object): |
| 79 | + def __init__( |
| 80 | + self, |
| 81 | + screen_obj: Screen, |
| 82 | + /, |
| 83 | + packargs: dict = None, |
| 84 | + **kwargs |
| 85 | + ) -> None: |
| 86 | + if not isinstance(screen_obj, Screen): |
| 87 | + raise TypeError("screen_obj must be an instance of Screen") |
| 88 | + if packargs is None: |
| 89 | + packargs = {} |
| 90 | + self.button_obj = tk.Button(screen_obj.root, **kwargs) |
| 91 | + self.button_obj.pack(**{k: v for k, v in packargs.items() if v is not None}) |
| 92 | + |
| 93 | + def config(self, **kwargs) -> None: |
| 94 | + self.button_obj.config(**kwargs) |
| 95 | + |
| 96 | + def destroy(self) -> None: |
| 97 | + self.button_obj.destroy() |
| 98 | +``` |
| 99 | + |
| 100 | +--- |
| 101 | + |
| 102 | +## 4. Usage Example |
| 103 | + |
| 104 | +```python |
| 105 | +from ingame.core import InGame, Screen |
| 106 | +from ingame.objects import CustomWidget |
| 107 | + |
| 108 | +app = InGame() |
| 109 | +screen = Screen(app) |
| 110 | + |
| 111 | +my_widget = CustomWidget(screen, text="Hello, InGame!", packargs={"pady": 10}) |
| 112 | +my_widget.config(bg="blue") |
| 113 | +# ... |
| 114 | +``` |
| 115 | + |
| 116 | +--- |
| 117 | + |
| 118 | +## 5. Notes |
| 119 | + |
| 120 | +- Always check that `screen_obj` is an instance of `Screen`. |
| 121 | +- Use `packargs` to pass layout options (e.g., `{"pady": 10}`). |
| 122 | +- Expose widget-specific methods as needed (e.g., `get()` for text input). |
| 123 | +- Follow the pattern in [`src/ingame/objects.py`](https://github.com/Natuworkguy/InGame/blob/main/src/ingame/objects.py) for consistency. |
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