Very early Sonic engine, and my submission for GSE-Fest 2023. Most of the code is mine, loosely based off of the Sonic Physics Guide. This took way longer than it should have. You don't need to ask me to be able to use this. WASD / arrows to move ZXC / JKL to jump 1 enables debug movement 2 shows all the debug/collision stuff 3 changes your character STAGE EDITOR: ⬇ https://scratch.mit.edu/projects/491365951/ Better on Turbowarp: ⬇ turbowarp.org/432762752 ################# Updates ################# 09/11/23 UPDATE: Added a very basic pause menu. ■ Completed Amy's moveset. (pls comment if its inaccurate) ■ The game no longer lags when you run into a wall. ■ Added a toggle to disable Player 2 (shows when you press 2). ■ Changed some animation speeds. ■ Modified the Drop Dash. (again) ■ Fixed layering on the loop tiles. ■ Added code for the S-tunnels TO DO LIST: Fix tails lagging one frame behind the camera Add using Tails to fly take another break fix animations being 1 frame behind never frogerb. ########################################### 29/10/23 UPDATE: Added a very WIP Amy. idk how her hammer run works since i don't have superstars so I haven't added that yet. ■ Added some background music. ■ Fixed the roll/jump animation ■ Fixed character initially facing wrong way when skidding ■ Fixed the camera not stopping while spindashing when physicsStyle is set to 4 (CD cam). ■ Fixed some of Player 2's respawn stuff. ■ Modified the Drop Dash a little. ########################################### 14/10/23 UPDATE: Added a Player 2 (Very WIP) ########################################### 07/10/23 UPDATE: Fixed issue where Sonic gets stuck on some slopes. ■ The camera can't go off stage anymore. ■ Changed the animation speeds of the level visuals. ■ Camera now moves when you look up or down. (turbowarp only) This update affects the "Hitbox" and "tiles" sprites. ########################################### 04/10/23 (small) update: Added more visuals, everything looks a lot better now. ########################################### 03/10/23 (small) UPDATE: Overhauled the level tile code. Level Data is now read from converted '.bin' files, taken from a disassembly of Sonic 1. i did this by copy-pasting the contents of a file from a hex-editor into a txt file. Thanks to for letting me know about SonLVL :) ■ Decreased the time that the camera locks for when doing a spindash/peelout. (scratch only) ■ Knuckles can no longer roll when sliding. ■ Knuckles can no longer face different directions while sliding. This update affects the "Hitbox", "Anim", "solid", and "semisolid" sprites. ##########################################/10/23 FIXED: Added playable Knuckles. ■ Added more Sound Effects ■ Fixed Sonic facing the wrong way when balancing. ■ Fixed issue where sonic sometimes doesn't go up ramps. (again) Mobile controls for gliding work the same as with spindashing, button is held when you enter a glide and released when pressed again. This update affects the "Hitbox", "Anim", and "Input/Touch" sprites. ########################################### 21/09/23 UPDATE: Added Tails. You can switch between characters by pressing "3". just realised i forgot to add sound effects when tails flies,,, will add tomorrw. This update affects the "Hitbox" and "Anim" sprites. ########################################### 19/09/23 UPDATE: Fixed issue where sonic doesn't go up ramps. ■ Fixed Sonic CD camera sometimes facing the wrong way. ■ Modified mobile controls for when sonic is not moving. Down and Up get "stuck" down when pressed, and get released when pressed again, allowing people to spindash/peelout on mobile. This update affects the "Hitbox", and "Input/Touch" sprites. Theres a bunch of other collision related stuff i gotta fix, but ill add some new features first. ########################################### 14/09/23 UPDATE: Fixed issue with rolling down slopes. ■ Added some Sound Effects. ■ Added more inputs for jumping. (JKL) ■ Added smooth rotation option. ■ Made the Sonic CD spindash take less time to charge. ■ You can press "2" to hide/show all the debug stuff/options. (idea definitely not stolen from neonscratchers remix :) ) ■ Other minor and more boring changes relating to fixing collision. This update affects the "Hitbox", and "Input/Touch" sprites, with minor changes to the "Anim" sprite. ############# Variables and Notes ############# "physicsStyle" doesn't change much, only minor things that are different between the games. 1 to 3 is self explanatory, 4 is Sonic CD. (this won't change much btw) "toggleSpindash" is a little similar. 0 disables the spindash. 1 enables it. 2 enables the Sonic CD spindash. There's toggles for all of the other moves inside the project if you want to disable them press "1" to enable debug mode like movement. space warps you to the loopb. (used for testing but i'm not removing it) Drop Dash sprites by me, feel free to use. wahoo
Wow, look at this theme!
