Changelog

Copy Markdown View Source

[0.2.0]

Added

  • Data.read/1 and Data.parse/1 for GameMaker data files from GameMaker: Studio 1 and GameMaker Studio 2 up to 2.3: the header, options, sprites with masks, texture pages and their regions, backgrounds and tilesets, objects with events and physics, rooms with views, instances, backdrops, tiles and layers, sounds and stored audio, fonts, paths and scripts. Data.index/3 reads a table of names made when the file is read.
  • Pictures cuts regions, sprite frames, backgrounds and tiles from the decoded pages; Pictures.table/2 cuts every glyph of a font as {:glyph, font, character}.
  • Wave.read/1: stored WAVE sounds, the extensible format included, as 16-bit PCM.
  • Event.handler_name/3 names the compiled function of an object's event.
  • mix gamemaker.info.
  • A runtime for a game's code written in Elixir: World, Step, Rooms, Collide, Draw, Instance and the Code behaviour, with Pictures.table/2 and Pictures.sprite_part/3 for drawing its frames through Cauldron2D.DrawList.
  • World.new/3 takes :seed for the world's random numbers, :pictures for drawing onto surfaces, and :object_depths, the depths by object name at which World.create/4 makes instances (object_get_depth, for a GameMaker Studio 2 game converted from GameMaker: Studio 1).
  • World keeps the ids of instances that were outside the room last step in its outside set, and its surfaces as %{rasters: %{id => raster}, next: id}; Surfaces.rasters/1 gives the rasters by id. World.instances_of/2 reads an index of each object's instances and descendants, kept as instances are made and removed.
  • Draw order as the runtime has it: instances of equal depth draw newest first, the earliest made in front; at equal depth, instances a GameMaker Studio 2 room places on its own instance layer (Instance.room_layer) draw in front of instances code made. Instances made by code are numbered after the highest id any room places.
  • Sprite masks are Cauldron2D.Masks; Sprite.mask/2 picks a frame's.
  • TileLayers: a room's tile layer drawn as one picture, {:tile_layer, room, layer, blend}, which Draw.run/1 gives; raster/3 draws it and Surfaces.lookup/2 gives it.
  • Text.items/5 lays a string out in a game's fonts as GameMaker's draw_text and draw_text_ext do (# line breaks, alignment, colour, wrapping, line separation), with :angle, the whole text turned about its position, and :mode, the blend mode of its glyphs; Text.width/4 and Text.height/4 measure it, and Draw.text/5 draws it from draw code.
  • Shapes: GameMaker's ellipse (draw_ellipse) as a picture, {:ellipse, {width, height}, :filled | :outline}, which Surfaces.lookup/2 gives.
  • Surfaces: surfaces made, drawn onto, cleared, freed and drawn as pictures ({:surface, id}). Drawing onto one blends as GameMaker does, its blend factors applied to the alpha channel too. Surfaces.draw/4 takes :write, the colour channels drawing changes (draw_set_colour_write_enable); Surfaces.part_item/5 draws part of a surface (draw_surface_part_ext); Surfaces.copy/4 copies one surface's pixels exactly into another at a place (surface_copy).
  • World.put_layer/3 and World.layers/1: code changes a room's layers — shown or hidden, offset, speed, depth, a background layer's sprite, colour, :xscale and :yscale, and an asset layer's :tile_blend (layer_tile_blend) — until the room is left. Room layers scroll by their speed every step (World's scroll).
  • World.add_tile/5: tiles added by code (tile_add), drawn as {:part, {:sprite, sprite, 0}, rectangle} until the room is left; Surfaces.lookup/2 cuts {:part, key, rectangle} pictures.
  • World.hide_tiles/3: a room's tiles at a depth hidden or shown again (tile_layer_hide, tile_layer_show) until the room is left.
  • Path.position/2: a path's place at a fraction of its length (path_get_x, path_get_y), curved paths broken into points as GameMaker breaks them.
  • Collide.bounce/4: move_bounce_solid and move_bounce_all, simple and advanced.
  • Random: GameMaker's random numbers — the runtime's WELL512a generator and its seeding, random, random_range, irandom, irandom_range and choose as the runtime computes them.
  • Particles: particles set loose by code, moving, animating and fading by themselves, drawn with the room and cleared on entering a room; Particles.take/2 takes particles out of the world, picked by a function of each, and a particle may carry any :picture in place of a :sprite.
  • PartSystems: GameMaker's particle systems, types and emitters as its runtime runs them — ranges, increments, wiggles, gravity, three alphas, HSV colours, death and step particles, region shapes and spreads, automatic or manual update and draw.
  • Colour: hsv/3 (make_color_hsv) and merge/3 (merge_color).
  • Draw.item/2: draw code adds any picture of the game's own.