Run game loop

Portable game loop that works on both desktop and web (webR/Emscripten). On desktop, runs a standard while loop. On web, registers a callback with emscripten_set_main_loop so the browser event loop stays responsive.

Usage

run_game_loop(update_fn, init_fn = NULL, cleanup_fn = NULL)

Arguments

update_fn

A function called once per frame. Should contain begin_drawing()/end_drawing() calls.

init_fn

Optional function called once before the loop starts.

cleanup_fn

Optional function called after the loop ends (e.g., to call close_window()).

Examples

if (FALSE) {
run_game_loop(
  update_fn = function() {
    begin_drawing()
    clear_background("white")
    draw_text("Hello!", 100L, 100L, 20L, "black")
    end_drawing()
  },
  init_fn = function() init_window(800L, 450L, "Game"),
  cleanup_fn = function() close_window()
)
}