Raycaster

This is a 2D raycaster that uses DDA for fast intersection calculations.
This is one of my earlier projects. I previously used SFML with C++ for graphics, but this is a ported version that uses canvas.

Guide:

• The box on the left is the map.
• The box on the right is the "3D" view.
• Place some walls by clicking/dragging on the map.

Click here for sample map
Click here to clear the map

Controls:

• W: Move forward
• A: Turn left
• S: Move back
• D: Turn right
• Click on map: Place wall

Reference material used:

• Lode's Computer Graphics Tutorial/Raycasting (link)
• Super Fast Ray Casting in Tiled Worlds using DDA (link)
• Handling Multiple Key Presses at Once in Vanilla JavaScript (for Game Controllers) (link)