sfall 3.8.22

Changelog:

• Fixed and improved the functionality of substr script function
• Restored and fixed RemoveWindowRounding option that was removed in 3.8.12
• Improved the functionality of inventory_redraw script function
• Changed the return value of get_script script function from -1 to 0 for unscripted objects
• Changed the debug message about a missing critter art file to also be displayed in the game
• Code refactoring for various script functions
• Added a fix to prevent the player from moving when clicking on a script-created window and prevent the mouse cursor from being toggled when hovering over a 'hidden' window
• Added a fix to prevent crashes when DebugMode is enabled and there is a % character in the printed message
• Added an option to load a global shader file at game startup and added an example global shader file to the modders pack
• Added an option to highlight lootable corpses as well as items
• Added support for executing the timed_event_p_proc procedure in global scripts
• Backported script functions from 4.1: draw_image, draw_image_scaled
• New script functions: add_g_timer_event, remove_timer_event, reg_anim_callback, get_sfall_arg_at, hide/show_window, set_window_flag, get_text_width, string_compare, string_format, objects_in_radius, tile_by_position