📝 data_s

Provides access to a single, persistent instance of the t_data structure (singleton pattern).

⚙️ Parameters

Parameter	Type	Description
(none)	—	This function does not take any parameters.

🔁 Returns

Return value	Description
t_data*	Returns a pointer to a static t_data instance that persists for the program’s lifetime.

📖 Description

The data_s function implements a singleton pattern for the t_data structure.
It defines a static variable of type t_data, ensuring that only one instance of this structure exists throughout the program.

Each call to data_s() returns a pointer to this same static instance, allowing global access to shared data without requiring external global variables.

This approach is particularly useful for managing global state in C applications, such as game engines or renderers, where multiple components need to access shared configuration or runtime data.

• The static variable is initialized only once, the first time the function is called.
• Subsequent calls return the same address, maintaining data consistency across the application.

💡 Example Usage

t_data *data = data_s(); // Get pointer to the singleton data instance
data->width = 1920;
data->height = 1080;

t_data *same_data = data_s(); // Returns the same instance
printf("Resolution: %dx%d\n", same_data->width, same_data->height);