Release history 0.3 04.04.2008 - first public release 0.4 05.04.2008 - corrected memory management bug which caused many knock-on problems - fixed a problem with the sound compilation - added code to display message number in the message editor 0.5 06.04.2008 - fixed bug moving to next level - fixed bug whereby only 6 sprites appeared on screen, instead of maximum 12 0.6 12.04.2008 - added functionality for ADD and SUBTRACT - added events for restart and initialise sprite - games are now saved properly, so should now be entirely stand-alone - fixed bug in scoring routine 0.7 13.04.2008 - fixed anti-flicker sprite sort - fixed delete message bug - removed debug code which prevented saved games being reloaded 0.8 18.04.2008 - added map layout code - added DISPLAY command to display numeric values - code editor now makes use of as much RAM as possible - now returns address of score string to BASIC 0.9 27.04.2008 - window resize now shows character squares in a chessboard pattern - fixed lock up caused by delete block routine 1.0 29.04.2008 - should be fairly stable now, so we'll call this version 1.0 ;) - added new deadly block, and new DEADLY collision test - replaced missing code for sprite copy and paste - fixed a bug in the sprite initialisation event 1.1 07.05.2008 - fixed bug in SPAWN routine - added WAITKEY command 1.3 28.02.2009 - rewrote sprite routines to eliminate flicker - added JUMP and FALL commands - added jump table editor 1.4 01.03.2009 - added global variables E, F, G and H - SCORE, BORDER, COLOUR, DELAY, MESSAGE now accept variables as arguments 1.5 02.05.2009 - added object editor to main menu - added GOT, GET, PUT, DETECTOBJ - added global variables I, J, K and L, plus object handling variable OBJ - fixed screen corruption in text editor 2.0 29.08.2009 - screen data is now stored in a compressed format - changing screens with LET SCREEN = now changes the map position - added TOGGLE command - increased speed of sprite routine - fixed bugs which occurred when deleting screens or resizing window 2.1 18.09.2009 - added ENDGAME command - added PRINT facility to text editor (symbol shift-I) - fixed bug which removed first sprite position when resizing window - stand-alone games no longer crash on returning to Sinclair BASIC - fixed compiler bug whereby IF would occasionally test incorrect parameters - fixed bug with FALL command which prevented char-aligned sprites falling 2.2 03.10.2009 - replaced TOGGLE command with OTHER, SPAWNED and ORIGINAL - added ANIMBACK command - editor now checks sufficient room in RAM before editing event scripts - removed unshifted copy of sprites, making them 20% more efficient - added option to configure editor colours 2.3 21.03.2010 - bright key in block editor now cycles all 4 bright and flash bit combinations - fixed bug amending screens after blocks are deleted in block editor - fixed problem with sound in DELAY 2.4 02.04.2010 - added fast draw mode to screen editor - added collision detection distance option to main menu - added setup menu with ULA+ palette editor - block editor now displays blocks properly in ULA+ mode - reset sprite frame and avoid potential corruption on sprite creation/deletion - minor internal compiler changes 2.5 04.06.2010 - fixed bug which didn't set up terminator when adding a sound 2.6 17.07.2010 - save current screen changes when creating new screen in the editor 2.7 26.11.2011 - added Kempston joystick support - internal editor changes to free up more RAM 3.0 08.04.2012 - editor routines paged in and out of RAM to create more room for the game - added event templates - ULA+ palette editor incorporated into main menu - vertical and horizontal mirroring added to sprite and object editors - scratchpad screen load/grab functionality added to sprite editor - added >, <=, <> operators - added M, N, O and P variables - added INV and MENU commands and OPT variable - added off-screen protection to print routines to stop overwriting system variables - added BEEP command - previously, IF A=3 worked while 3=A didn't. This has been fixed - option to create BASIC loader added - font editor added 3.1 20.05.2012 - fixed bug in way script compiler handles numbers 3.2 08.06.2012 - added REPEAT, ENDREPEAT, EXIT commands - screen editor now includes mark and paste facilities - created enemy template for ladders-and-levels games 3.3 21.12.2012 - added MULTIPLY command - fixed bug in screen editor mark and paste - fixed last two event templates 3.4 17.02.2013 - fixed bug in GETRANDOM - fixed bug in text editor whereby text could appear in next message - sprite position editor no longer calls sprite initialisation event - text editor speeded up 3.5 28.03.2013 - fixed code editor bug by increasing gap between game and editor workspace 4.0 04.05.2013 - added facility to modify engine for particles, effects or puzzles - added option to convert sprite engine from 16x16 to 16x24 - incorporated a particle engine - added Q, R and CLOCK variables - added DIVIDE, SPRITEINK, SILENCE, REDRAW, CONTROLMENU commands - FILL command replaced with PUTBLOCK - added LASER, EXPLODE, STAR and TRAIL particle commands - added BIGMESSAGE, FADE, TICKER, BIGSCORE effect commands - INV and DIG moved to adventure engine - water block added to adventure engine - sprite position editor highlights selected sprite - sprite positions now use less memory - events editor moves cursor to first erroneous line - maps can now be 11 rooms wide - added option to incorporate loading screen in BASIC loader - added option to remove sprite ordering and AY sound - added several new events 4.1 09.05.2013 - fixed debounce on key refinition - sprite clear, grab, copy and paste should now work for 16x24 sprites 4.2 07.07.2013 - fixed 16x24 sprite horizontal flip - experimental colour scheme change 4.3 31.08.2013 - fixed compiler COLLISION bug - no longer displays trailing digits for screens 0-9 in screen editor - now tabulates properly in sound editor - added keys 3 and 4 in sound editor to speed up tone setting 4.4 05.01.2014 - check for objects at next sprite position, not previous one - store new font correctly when loading an AGD file from tape - vertically flip entire 16x24 sprite, not just 16x16 - removing sprite frame in 16x24 mode no longer corrupts sprites - don't overwrite end marker when length of text message changes - fixed bug which corrupted sprite position data following window resize - set a default sprite in main loop events to fix spawning bugs 4.5 15.02.2014 - don't page out the end of the game code when saving - only save a loading screen if one was supplied by the user - fix screen corruption when jump table editor reaches limits - Added RGB value display to palette editor 4.6 04.10.2014 - fix text buffer corruption when multiple messages are added in one go - display screen correctly when positioning objects 4.7 06.03.2017 - added STOPFALL command - added S and T variables - prevent user creating empty text messages which caused corruption - added code templates for pushable blocks and moving platforms - COLLISION can now be used to detect sprites of the same type - BEEP values over 127 now produce white noise sound effects - removed requirement for sprite to be standing on a solid block before a jump - stopped text messages corrupting PUTBLOCK - temporarily compress sprites to free up memory when editing events - water blocks are now working correctly - copying and pasting 16x24 pixel sprites now copies the entire image - BEEP no longer changes the border colour to black - various minor engine changes