0.4.0.0

Bugfixes

• Save completion time immediately upon finishing scenario by @xsebek
  (#1118)
• Fix rightward bleeding of custom attributes by @kostmo (#1137)
• Recreate GameState from scratch when starting a scenario by @byorgey (#1277)
• Load persistent state from disk only once and reuse for all integration tests by @byorgey (#1383)
• Continue parsing the rest of the scenarios in a directory when one fails by @byorgey (#1391)
• Throw an error instead of crashing on impredicative types by @byorgey (#1418)

New Features

Tutorials

• Some tutorial improvements, and enforce in CI that commands and entities are introduced before they are required by @kostmo (#1186)

Swarm language

• The drill command now returns the first inventory addition by @kostmo (#1165)
• Type ascription syntax by @Alexander-Block (#1164)
• Records and record types by @byorgey (#1148)
• requirements command for viewing requirements of any expression by
  @byorgey (#1183)
• stride command by @kostmo (#1219)
• Many new robot sensing commands by @kostmo:
  • detect (#1170)
  • sniff and chirp (#1181)
  • resonate (#1204)
  • watch and surveil (#1201)
  • scout (#1209)
• New key input handler framework by @byorgey, so you can program robots to
  respond to keypresses (#1214)
• instant command (unrestricted variant of atomic) by @kostmo (#1231)
• push command by @kostmo (#1235)
• density command by @kostmo (#1296)
• use command by @kostmo (#1287)
• halt command by @byorgey (#1256)
• backup command by @kostmo (#1400)

Entities + recipes

• Make sand a bit harder to get by @byorgey (#1024)
• New tweezers entity to enable debugging view and single-stepping CESK machine by @xsebek (#1081)
• ADT calculator description now mentions unit and void types #1226
• Allow zero-tick recipes to apply immediately by @kostmo (#1272)
• New hourglass device that provides relative (wait) but not absolute (time) capability by @kostmo (#1261)
• New binoculars device that provides scout command by @kostmo (#1337)
• Separate entities to provide each text operation by @kostmo (#1339)

World features

• Structure templates by @kostmo (#1332)
• Waypoints and portals by @kostmo (#1356)
• Subworlds by @kostmo (#1353)
• World description DSL by @byorgey (#1376)

LSP improvements

• let-in syntax highlighting by @kostmo (#1162)

Web API

• Web API to parse, render, and run code by @kostmo (#1142)

Command line options

• CLI option to set initial speed by @kostmo (#1255)

New scenarios

• Adventure game scenario by @kostmo (#1136)
• Run around in circles by @kostmo (#1158)
• hackman by @kostmo (#1135)
• Whack-a-mole by @kostmo (#1026)
• Additional tutorial level on give by @byorgey (#1249)
• Lights out by @kostmo (#1273)
• Pig capturing scenario by @kostmo (#1258)
• Sokoban levels by @kostmo (#1269)
• Traffic vignette by @kostmo (#1334)
• Active trapdoor demo by @kostmo (#976)
• Sliding puzzle by @kostmo (#1237)
• Scenario with enemies by @kostmo (#971)
• Arbitrage scenario by @kostmo (#1192)
• Powerset scenario by @kostmo (#1342)

UI enhancements

• Allow scrolling the world map unless explicitly disallowed by @byorgey (#1109)
• Add random "static" to view outside a certain range by @byorgey (#1110, #1241)
• Display the scenario in which an achievement was obtained by @kostmo (#1175)
• World editor prototype by @kostmo (#873)
• Scenario launch options selection by @kostmo (#1010)
• Record best code size by @kostmo (#974)
• Inventory search/filter mode by @byorgey (#1250)
• Display higher clock resolution at lower speeds by @kostmo (#1253)
• Make REPL panel collapsible by @ussgarci (#1076)
• Better typechecking error messages by @byorgey
  (#1308, #1318)
• Rename inventory to compendium by @kostmo (#1346)
• Goal dialog suppression with --autoplay by @kostmo (#1344)
• Change binding for Hide REPL to M-, by @noahyor (#1375)
• Highlight ticks per frame in red when it reaches the cap by @byorgey (#1386)
• Parse and render markdown descriptions by @xsebek (#1106, #1413)

Achievements

• Achievement for disorientation by @kostmo (#1173)