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GameMaker (GML) API Coverage ​

Tracks implementation status of GML runtime functions and built-in variables. Organized by the categories in the GML Reference.

Legend: [x] implemented, [~] partial/stub, [ ] not started

Variable Functions ​

Variable Instance/Global ​

  • [x] variable_global_exists
  • [x] variable_global_get
  • [x] variable_global_set
  • [ ] variable_instance_exists
  • [ ] variable_instance_get_names
  • [ ] variable_instance_names_count
  • [ ] variable_instance_get
  • [ ] variable_instance_set

Variable Struct ​

  • [ ] variable_struct_exists
  • [ ] variable_struct_get
  • [ ] variable_struct_set
  • [ ] variable_struct_remove
  • [ ] variable_struct_get_names
  • [ ] variable_struct_names_count
  • [ ] instanceof

Arrays ​

  • [x] array_create
  • [ ] array_copy
  • [ ] array_equals
  • [ ] array_get
  • [ ] array_set
  • [ ] array_push
  • [ ] array_pop
  • [ ] array_insert
  • [ ] array_delete
  • [ ] array_sort
  • [x] array_length (via array_length_1d)
  • [ ] array_resize
  • [~] array_length_1d (deprecated, type sig only)
  • [~] array_length_2d (deprecated, type sig only)

Data Types ​

  • [x] is_string
  • [x] is_real
  • [ ] is_numeric
  • [ ] is_bool
  • [x] is_array
  • [ ] is_struct
  • [ ] is_method
  • [ ] is_ptr
  • [ ] is_int32
  • [ ] is_int64
  • [ ] is_undefined
  • [ ] is_nan
  • [ ] is_infinity
  • [ ] typeof
  • [ ] bool
  • [ ] ptr
  • [x] int64

Methods ​

  • [ ] method
  • [ ] method_get_self
  • [ ] method_get_index

Asset Management ​

Sprites ​

  • [x] sprite_get_width
  • [x] sprite_get_height
  • [x] sprite_get_number (image count)
  • [x] sprite_get_xoffset
  • [x] sprite_get_yoffset
  • [x] sprite_get_bbox_left
  • [x] sprite_get_bbox_right
  • [x] sprite_get_bbox_top
  • [x] sprite_get_bbox_bottom
  • [ ] sprite_get_name
  • [ ] sprite_get_speed
  • [ ] sprite_get_speed_type
  • [ ] sprite_exists
  • [ ] sprite_add / sprite_replace / sprite_delete
  • [ ] sprite_duplicate / sprite_merge
  • [ ] sprite_set_offset / sprite_set_bbox_mode
  • [ ] sprite_create_from_surface
  • [ ] sprite_collision_mask

Audio ​

  • [~] audio_play_sound (type sig only)
  • [~] audio_stop_sound (type sig only)
  • [~] audio_is_playing (type sig only)
  • [~] audio_sound_gain (type sig only)
  • [ ] audio_pause_sound / audio_resume_sound
  • [ ] audio_stop_all
  • [ ] audio_sound_get_gain / audio_sound_pitch
  • [ ] audio_sound_set_track_position / audio_sound_get_track_position
  • [ ] audio_play_sound_at (3D audio)
  • [ ] audio_listener_* (3D audio listener)
  • [ ] audio_emitter_* (3D audio emitter)
  • [ ] audio_group_* (audio groups)
  • [ ] audio_create_stream / audio_destroy_stream
  • [ ] audio_system / audio_channel_num
  • [ ] audio_master_gain

Fonts ​

  • [x] font_get_size
  • [ ] font_get_name
  • [ ] font_get_first / font_get_last
  • [ ] font_get_italic / font_get_bold
  • [ ] font_exists
  • [ ] font_add / font_replace / font_delete
  • [ ] font_add_sprite / font_add_sprite_ext
  • [ ] font_set_cache_size

Objects ​

  • [ ] object_exists
  • [ ] object_get_name
  • [ ] object_get_sprite / object_get_depth / object_get_visible
  • [ ] object_get_persistent / object_get_solid
  • [ ] object_get_parent / object_is_ancestor
  • [ ] object_set_* (sprite, depth, visible, persistent, solid)
  • [ ] object_get_mask

Rooms ​

  • [ ] room_exists
  • [ ] room_get_name
  • [ ] room_get_info
  • [ ] room_add / room_duplicate / room_assign
  • [ ] room_set_* (width, height, background, view)

Instances ​

  • [x] instance_create (instance_create_layer / instance_create_depth)
  • [x] instance_destroy
  • [x] instance_exists
  • [x] instance_number
  • [~] instance_find (type sig only)
  • [~] instance_nearest (type sig only)
  • [~] instance_furthest (type sig only)
  • [~] instance_change (type sig only)
  • [ ] instance_copy
  • [ ] instance_id_get
  • [ ] instance_place / instance_place_list
  • [ ] instance_position / instance_position_list
  • [ ] instance_activate_* / instance_deactivate_*

Paths ​

  • [ ] path_start / path_end
  • [ ] path_get_* (length, speed, x, y, number, etc.)
  • [ ] path_set_* (kind, closed, precision, etc.)
  • [ ] path_add / path_delete / path_duplicate
  • [ ] path_add_point / path_insert_point / path_delete_point

Timelines ​

  • [ ] timeline_* functions

Scripts ​

  • [~] script_execute (type sig only)
  • [ ] script_exists / script_get_name

Sequences ​

  • [ ] Entire sequences API (GMS2.3+)

Animation Curves ​

  • [ ] Entire animation curves API (GMS2.3+)

Tags ​

  • [ ] asset_get_tags / asset_add_tags / asset_remove_tags
  • [ ] tag_get_asset_ids

Tile Sets ​

  • [ ] tilemap_* functions
  • [ ] tileset_* functions

Shaders ​

  • [ ] shader_set / shader_reset
  • [ ] shader_get_uniform / shader_set_uniform_*
  • [ ] shader_get_sampler_index
  • [ ] shader_is_compiled / shader_current

Extensions ​

  • [ ] extension_* functions

General Game Control ​

Game Functions ​

  • [x] game_restart
  • [x] game_end
  • [~] game_save (type sig only)
  • [~] game_load (type sig only)

Built-in Variables ​

  • [x] score (via global)
  • [x] health (via global)
  • [x] lives (via global)
  • [ ] game_id
  • [ ] game_save_id
  • [ ] game_display_name
  • [ ] game_project_name

Speed ​

  • [ ] game_set_speed / game_get_speed
  • [ ] fps / fps_real

High Score ​

  • [ ] highscore_add / highscore_name / highscore_value / highscore_clear

Movement And Collisions ​

Movement ​

  • [x] Built-in vars: x, y, speed, direction, hspeed, vspeed, friction, gravity, gravity_direction
  • [~] motion_set (type sig only)
  • [~] move_towards_point (type sig only)
  • [~] move_wrap (type sig only)
  • [ ] move_bounce_all / move_bounce_solid
  • [ ] move_contact_all / move_contact_solid
  • [ ] move_outside_all / move_outside_solid
  • [ ] move_snap
  • [ ] move_random
  • [ ] mp_linear_step / mp_potential_step (motion planning)
  • [ ] mp_grid_* (A* pathfinding)

Collisions ​

  • [~] place_meeting (type sig only)
  • [~] place_free (type sig only)
  • [~] place_empty (type sig only)
  • [~] collision_point (type sig only)
  • [~] collision_rectangle (type sig only)
  • [~] collision_line (type sig only)
  • [~] collision_circle (type sig only)
  • [ ] collision_ellipse
  • [ ] place_snapped
  • [ ] position_meeting / position_empty
  • [~] distance_to_object (type sig only)
  • [~] distance_to_point (type sig only)

Drawing ​

Colour And Alpha ​

  • [x] draw_set_color / draw_get_colour
  • [x] draw_set_alpha / draw_get_alpha
  • [x] Color constants: c_white, c_black, c_red, c_lime, c_blue, c_yellow, c_aqua, c_fuchsia, c_maroon, c_green, c_navy, c_olive, c_teal, c_purple, c_orange, c_silver, c_ltgray, c_gray, c_dkgray
  • [x] make_color_rgb / make_color_hsv
  • [x] color_get_red / color_get_green / color_get_blue / color_get_hue
  • [x] merge_color
  • [ ] color_get_saturation / color_get_value
  • [ ] draw_getpixel / draw_getpixel_ext

Basic Forms ​

  • [x] draw_rectangle
  • [ ] draw_roundrect / draw_roundrect_ext
  • [~] draw_circle (type sig only)
  • [ ] draw_circle_colour
  • [ ] draw_ellipse / draw_ellipse_colour
  • [~] draw_line (type sig only)
  • [ ] draw_line_colour / draw_line_width / draw_line_width_colour
  • [ ] draw_point / draw_point_colour
  • [ ] draw_arrow
  • [ ] draw_button
  • [ ] draw_path
  • [ ] draw_healthbar
  • [ ] draw_rectangle_colour
  • [ ] draw_triangle / draw_triangle_colour

Text ​

  • [x] draw_text
  • [x] draw_text_ext
  • [x] draw_text_color / draw_text_colour
  • [x] draw_text_ext_color / draw_text_ext_colour
  • [x] draw_text_transformed
  • [x] draw_text_ext_transformed
  • [x] draw_text_transformed_color / draw_text_transformed_colour
  • [x] draw_text_ext_transformed_color / draw_text_ext_transformed_colour
  • [x] draw_set_font
  • [x] draw_set_halign / draw_set_valign
  • [x] Alignment constants: fa_left, fa_center, fa_right, fa_top, fa_middle, fa_bottom
  • [ ] string_width / string_width_ext
  • [ ] string_height
  • [x] string_height_ext

Sprites And Tiles ​

  • [x] draw_sprite
  • [x] draw_sprite_ext
  • [x] draw_self
  • [ ] draw_sprite_general
  • [ ] draw_sprite_part / draw_sprite_part_ext
  • [ ] draw_sprite_stretched / draw_sprite_stretched_ext
  • [ ] draw_sprite_pos
  • [ ] draw_sprite_tiled / draw_sprite_tiled_ext
  • [ ] draw_tile / draw_tilemap

Surfaces ​

  • [~] surface_create (type sig only)
  • [~] surface_free (type sig only)
  • [~] surface_exists (type sig only)
  • [~] surface_set_target (type sig only)
  • [~] surface_reset_target (type sig only)
  • [~] surface_get_width / surface_get_height (type sig only)
  • [~] draw_surface (type sig only)
  • [ ] draw_surface_ext / draw_surface_part / draw_surface_stretched
  • [ ] surface_get_texture
  • [ ] surface_copy / surface_copy_part
  • [ ] surface_save / surface_save_part
  • [ ] surface_getpixel / surface_getpixel_ext
  • [ ] surface_resize
  • [ ] application_surface

GPU Control ​

  • [ ] gpu_set_* / gpu_get_* (blendmode, alphatestenable, etc.)
  • [ ] draw_enable_alphablend / draw_enable_swf_aa

Primitives And Vertex Formats ​

  • [ ] draw_primitive_begin / draw_vertex / draw_primitive_end
  • [ ] draw_vertex_colour / draw_vertex_texture / draw_vertex_texture_colour
  • [ ] vertex_format_* / vertex_buffer_*
  • [ ] draw_primitive_begin_texture

Lighting ​

  • [ ] draw_light_* functions

Particles ​

  • [ ] part_system_* / part_type_* / part_emitter_*

Textures ​

  • [ ] texture_* functions
  • [ ] sprite_get_uvs / font_get_uvs

Shaders ​

  • [ ] (see Asset Management > Shaders)

Video Playback ​

  • [ ] video_* functions

Cameras And Display ​

The Game Window ​

  • [ ] window_set_* / window_get_* (size, position, fullscreen, caption, cursor)
  • [ ] display_get_width / display_get_height
  • [ ] display_get_gui_width / display_get_gui_height

Cameras And View Ports ​

  • [ ] camera_create / camera_destroy
  • [ ] camera_set_* / camera_get_* (view_pos, view_size, etc.)
  • [ ] view_enabled / view_visible / view_camera
  • [ ] Built-in view vars: view_xport, view_yport, view_wport, view_hport

Room/View Built-ins ​

  • [x] room (current room index — via room_goto)
  • [ ] room_width / room_height
  • [ ] room_speed
  • [ ] view_current

Game Input ​

Mouse Input ​

  • [x] mouse_x / mouse_y
  • [x] mouse_check_button
  • [x] mouse_check_button_pressed
  • [x] mouse_check_button_released
  • [ ] mouse_clear
  • [ ] mouse_wheel_up / mouse_wheel_down
  • [x] Button constants: mb_left, mb_right, mb_middle (mapped 1/2/3)
  • [ ] mb_none, mb_any

Keyboard Input ​

  • [~] keyboard_check (type sig only)
  • [~] keyboard_check_pressed (type sig only)
  • [~] keyboard_check_released (type sig only)
  • [~] keyboard_check_direct (type sig only)
  • [x] keyboard_string
  • [ ] keyboard_clear
  • [ ] keyboard_key / keyboard_lastkey / keyboard_lastchar
  • [ ] keyboard_set_map / keyboard_get_map / keyboard_unset_map
  • [ ] Virtual key constants (vk_left, vk_right, vk_up, vk_down, vk_enter, vk_escape, vk_space, vk_shift, vk_control, vk_alt, vk_tab, vk_backspace, vk_delete, vk_insert, vk_home, vk_end, vk_pageup, vk_pagedown, vk_f1-vk_f12, vk_nokey, vk_anykey)

Gamepad Input ​

  • [ ] gamepad_is_connected / gamepad_get_device_count
  • [ ] gamepad_button_check / gamepad_button_check_pressed / gamepad_button_check_released
  • [ ] gamepad_axis_value / gamepad_hat_value
  • [ ] gamepad_button_count / gamepad_hat_count / gamepad_axis_count
  • [ ] gamepad_set_vibration / gamepad_set_axis_deadzone / gamepad_set_button_threshold
  • [ ] gp_* constants

Device Input ​

  • [ ] device_mouse_* (touch input)
  • [ ] device_is_keypad_open

Gesture Input ​

  • [ ] gesture_* functions

Virtual Keys ​

  • [ ] virtual_key_add / virtual_key_delete / virtual_key_show / virtual_key_hide

Strings ​

  • [x] string_length
  • [x] string_copy
  • [x] string_insert
  • [x] string_replace_all
  • [x] string_lower
  • [x] string_upper
  • [x] string_char_at
  • [x] string_pos
  • [x] string_delete
  • [x] string_count
  • [x] chr
  • [x] ord
  • [x] string (conversion function)
  • [ ] string_byte_at / string_byte_length / string_set_byte_at
  • [ ] string_repeat
  • [ ] string_replace (single occurrence)
  • [ ] string_pos_ext (start position)
  • [ ] string_last_pos / string_last_pos_ext
  • [ ] string_letters / string_lettersdigits / string_digits
  • [ ] string_format
  • [ ] string_hash_to_newline
  • [ ] string_width / string_width_ext / string_height (drawing measurement)
  • [ ] ansi_char / ord_at (GMS2.3+)

Maths And Numbers ​

Number Functions ​

  • [x] floor, ceil, round
  • [x] abs, sign
  • [x] min, max, clamp
  • [x] sqrt, sqr, power, exp
  • [x] ln, log2, log10, logn
  • [x] frac
  • [x] lerp, mean, median
  • [ ] dot_product / dot_product_3d
  • [ ] dot_product_normalised / dot_product_3d_normalised
  • [ ] math_set_epsilon / math_get_epsilon

Trigonometry (Degree-based) ​

  • [x] sin, cos, tan (radians)
  • [x] dsin, dcos, dtan (degrees)
  • [x] darcsin, darccos, darctan, darctan2
  • [x] degtorad, radtodeg
  • [ ] arcsin, arccos, arctan, arctan2 (radian-based)

Angles And Distance ​

  • [x] point_distance
  • [x] point_direction
  • [x] lengthdir_x, lengthdir_y
  • [ ] point_distance_3d
  • [ ] angle_difference

Random ​

  • [x] random, random_range
  • [x] irandom, irandom_range
  • [x] choose
  • [x] randomize, random_set_seed
  • [ ] random_get_seed

Date And Time ​

  • [ ] date_* functions (date_create_datetime, date_current_datetime, etc.)
  • [ ] current_time / current_year / current_month / current_day / etc.

Type Conversion ​

  • [x] real
  • [x] int (→ int32 truncation)
  • [x] int64
  • [x] string (number → string)
  • [ ] bool
  • [ ] ptr

Matrix Functions ​

  • [ ] matrix_build / matrix_multiply
  • [ ] matrix_set / matrix_get
  • [ ] matrix_build_identity / matrix_build_lookat / matrix_build_projection_*
  • [ ] matrix_transform_vertex / matrix_stack_*

Data Structures ​

Lists (ds_list) ​

  • [~] ds_list_create (type sig only)
  • [~] ds_list_destroy (type sig only)
  • [~] ds_list_add (type sig only)
  • [~] ds_list_size (type sig only)
  • [~] ds_list_find_value (type sig only)
  • [ ] ds_list_delete / ds_list_insert
  • [ ] ds_list_find_index / ds_list_sort
  • [ ] ds_list_clear / ds_list_copy
  • [ ] ds_list_replace / ds_list_shuffle
  • [ ] ds_list_mark_as_list / ds_list_mark_as_map
  • [ ] ds_list_read / ds_list_write

Maps (ds_map) ​

  • [~] ds_map_create (type sig only)
  • [~] ds_map_destroy (type sig only)
  • [~] ds_map_add (type sig only)
  • [~] ds_map_find_value (type sig only)
  • [~] ds_map_exists (type sig only)
  • [ ] ds_map_delete / ds_map_replace
  • [ ] ds_map_size / ds_map_empty
  • [ ] ds_map_clear / ds_map_copy
  • [ ] ds_map_find_first / ds_map_find_last / ds_map_find_next / ds_map_find_previous
  • [ ] ds_map_keys_to_array / ds_map_values_to_array
  • [ ] ds_map_read / ds_map_write
  • [ ] ds_map_secure_save / ds_map_secure_load
  • [ ] json_encode / json_decode (maps to/from JSON)

Grids (ds_grid) ​

  • [~] ds_grid_create (type sig only)
  • [~] ds_grid_destroy (type sig only)
  • [ ] ds_grid_set / ds_grid_get
  • [ ] ds_grid_width / ds_grid_height / ds_grid_resize
  • [ ] ds_grid_clear / ds_grid_copy
  • [ ] ds_grid_add / ds_grid_multiply
  • [ ] ds_grid_set_region / ds_grid_get_max / ds_grid_get_min / ds_grid_get_sum / ds_grid_get_mean
  • [ ] ds_grid_sort / ds_grid_shuffle
  • [ ] ds_grid_read / ds_grid_write

Priority Queues (ds_priority) ​

  • [ ] ds_priority_create / ds_priority_destroy
  • [ ] ds_priority_add / ds_priority_delete_min / ds_priority_delete_max
  • [ ] ds_priority_find_min / ds_priority_find_max / ds_priority_find_priority
  • [ ] ds_priority_change_priority / ds_priority_size / ds_priority_empty / ds_priority_clear

Queues (ds_queue) ​

  • [ ] ds_queue_create / ds_queue_destroy
  • [ ] ds_queue_enqueue / ds_queue_dequeue
  • [ ] ds_queue_head / ds_queue_tail / ds_queue_size / ds_queue_empty / ds_queue_clear

Stacks (ds_stack) ​

  • [ ] ds_stack_create / ds_stack_destroy
  • [ ] ds_stack_push / ds_stack_pop / ds_stack_top
  • [ ] ds_stack_size / ds_stack_empty / ds_stack_clear

Utility ​

  • [ ] ds_set_precision
  • [ ] ds_exists

File Handling ​

INI Files ​

  • [x] ini_open
  • [x] ini_close
  • [x] ini_read_string / ini_read_real
  • [x] ini_write_string / ini_write_real
  • [x] ini_section_exists / ini_key_exists
  • [x] ini_section_delete / ini_key_delete
  • [x] ini_open_from_string

Text Files ​

  • [ ] file_text_open_read / file_text_open_write / file_text_open_append
  • [ ] file_text_close
  • [ ] file_text_read_string / file_text_read_real / file_text_readln
  • [ ] file_text_write_string / file_text_write_real / file_text_writeln
  • [ ] file_text_eof / file_text_eoln

Binary Files ​

  • [ ] file_bin_open / file_bin_close
  • [ ] file_bin_read_byte / file_bin_write_byte
  • [ ] file_bin_position / file_bin_seek / file_bin_size / file_bin_rewrite

File System ​

  • [ ] file_exists / file_delete / file_copy / file_rename
  • [ ] directory_exists / directory_create / directory_destroy
  • [ ] file_find_first / file_find_next / file_find_close
  • [ ] filename_name / filename_path / filename_dir / filename_drive / filename_ext
  • [ ] filename_change_ext / temp_directory / working_directory

Encoding And Hashing ​

  • [ ] base64_encode / base64_decode
  • [ ] md5_string_utf8 / md5_string_unicode / md5_file
  • [ ] sha1_string_utf8 / sha1_string_unicode / sha1_file
  • [ ] json_stringify / json_parse

Buffers ​

  • [ ] buffer_create / buffer_delete
  • [ ] buffer_read / buffer_write / buffer_fill
  • [ ] buffer_seek / buffer_tell / buffer_get_size / buffer_resize
  • [ ] buffer_get_type / buffer_get_alignment / buffer_get_address
  • [ ] buffer_copy / buffer_copy_from_vertex_buffer
  • [ ] buffer_load / buffer_save / buffer_load_async / buffer_save_async
  • [ ] buffer_compress / buffer_decompress
  • [ ] buffer_base64_encode / buffer_base64_decode
  • [ ] buffer_md5 / buffer_sha1 / buffer_crc32
  • [ ] buffer_get_surface / buffer_set_surface

Physics (Box2D) ​

  • [ ] physics_world_create / physics_world_update_speed / physics_world_gravity
  • [ ] physics_fixture_create / physics_fixture_bind / physics_fixture_set_*
  • [ ] physics_apply_force / physics_apply_impulse / physics_apply_torque
  • [ ] physics_joint_* (distance, revolute, prismatic, pulley, gear, rope, weld, friction, spring)
  • [ ] physics_particle_* (soft body simulation)
  • [ ] phy_* built-in variables

Networking ​

  • [ ] network_create_server / network_create_socket
  • [ ] network_connect / network_send_* / network_destroy
  • [ ] network_set_timeout / network_set_config
  • [ ] http_get / http_post_string / http_request
  • [ ] url_open / url_open_ext / url_open_full

Cameras And Display (see above) ​

Time Sources (GMS2.3+) ​

  • [ ] time_source_create / time_source_destroy
  • [ ] time_source_start / time_source_stop / time_source_pause / time_source_resume
  • [ ] time_source_reconfigure / time_source_get_*
  • [ ] call_later / call_cancel

OS And Compiler ​

  • [ ] os_type / os_device / os_version / os_browser
  • [ ] os_is_paused / os_is_network_connected
  • [ ] os_get_config / os_get_info / os_get_language / os_get_region
  • [ ] os_lock_orientation
  • [ ] parameter_count / parameter_string
  • [ ] environment_get_variable

Debugging ​

  • [~] show_debug_message (type sig only)
  • [~] show_message (type sig only)
  • [ ] show_debug_overlay
  • [ ] debug_event / debug_get_callstack
  • [ ] fps / fps_real
  • [ ] code_is_compiled
  • [ ] get_timer

Garbage Collection ​

  • [ ] gc_collect / gc_enable / gc_is_enabled
  • [ ] gc_get_stats / gc_target_frame_time

Other (Async, Web, Steam, Xbox, IAP) ​

These categories are mostly irrelevant for offline game lifting but listed for completeness:

Asynchronous Functions ​

  • [ ] Async HTTP, Dialog, Save/Load, Cloud, Push Notifications, etc.

Web And HTML5 ​

  • [ ] clickable_* functions
  • [ ] url_open / browser_*
  • [ ] os_is_paused (web focus)

Steam ​

  • [ ] steam_* functions (achievements, leaderboards, workshop, etc.)

Xbox Live ​

  • [ ] xboxlive_* functions

In App Purchases ​

  • [ ] iap_* functions

Built-in Instance Variables (GMLObject) ​

Position & Movement ​

  • [x] x, y
  • [x] xstart, ystart
  • [x] xprevious, yprevious
  • [x] speed, direction
  • [x] hspeed, vspeed
  • [x] friction
  • [x] gravity, gravity_direction

Sprite & Drawing ​

  • [x] sprite_index
  • [x] image_index, image_speed
  • [x] image_xscale, image_yscale
  • [x] image_alpha
  • [x] image_angle
  • [x] image_blend
  • [x] image_number
  • [x] sprite_width, sprite_height
  • [x] depth
  • [x] visible
  • [x] mask_index

Bounding Box ​

  • [x] bbox_left, bbox_right, bbox_top, bbox_bottom

Object Identity ​

  • [x] object_index
  • [x] id
  • [x] persistent
  • [x] solid

Alarms ​

  • [x] alarm[0] through alarm[11]

Path ​

  • [x] path_index, path_position, path_speed, path_scale, path_orientation, path_endaction (fields only, no path system)

Built-in Events (GMLObject) ​

Lifecycle ​

  • [x] Create
  • [x] Destroy
  • [x] Room Start / Room End

Step ​

  • [x] Begin Step / Step / End Step

Draw ​

  • [x] Draw / Draw GUI
  • [x] Draw Begin / Draw End / Draw GUI Begin / Draw GUI End
  • [x] Pre Draw / Post Draw / Resize

Alarms ​

  • [x] Alarm 0-11

Keyboard ​

  • [x] Key Press / Keyboard / Key Release (per key code 0-255)

Mouse ​

  • [x] Left/Right/Middle Button (down/pressed/released)
  • [x] No Button
  • [x] Mouse Enter / Mouse Leave
  • [x] Global Left/Right/Middle (down/pressed/released)

User Events ​

  • [x] User 0-15

View ​

  • [x] Outside View 0-7 / Boundary View 0-7

Other ​

  • [x] Collision events (per object type)
  • [~] event_perform (type sig only)
  • [~] event_user (type sig only)
  • [~] event_inherited (type sig only)

Platform Abstraction Layer ​

Graphics ​

  • [x] Canvas 2D initialization (GraphicsContext)
  • [x] Canvas resize
  • [x] OffscreenCanvas support (font tinting)

Images ​

  • [x] Async image loading (texture sheets)

Input ​

  • [x] Mouse position tracking (DOM → GML coordinates)
  • [x] Mouse button mapping (DOM button → GML mb_left/mb_right/mb_middle)
  • [x] Keyboard input routing

Timing ​

  • [x] Frame scheduling (setTimeout-based)
  • [x] Frame cancellation

Not Yet Abstracted ​

  • [ ] Audio (no platform module)
  • [ ] Persistence/Save (INI uses localStorage directly, not abstracted)
  • [ ] Networking
  • [ ] Clipboard
  • [ ] Dialog/Modal