A simple JavaScript raycaster I made in in 2018. There's not much to see except player movement and some moving walls.

Additionally, the other files contain useful custom libraries / utility functions I made. The code quality is not great though.

[Live demo]

• WASD = movement
• Space = jump
• Shift = hold to run
• Mouse move = look left and right
• Escape = pause the game and unlock the mouse
• Numpad+/- = raises/lowers the gray door
• Mouse click = first click starts creating a wall at the player's position, second click confirms the second position and places the wall