Cub3d

Keys

• W A S D -> move player
• M -> change minimap
• L -> turn off the light
• F -> turn on the flashlight
• Tab -> open the minimap
• Esc -> close the window
• C -> pick the collectible

Init game

Game

Flashlight

Collectible

search_player

function that searches for the player in a map represented as a 2D array of characters.

search_direction

function that sets the direction vector of the player based on the character representing their initial direction.

• Direção Norte: dir_x = 0, dir_y = -1
• Direção Sul: dir_x = 0, dir_y = 1
• Direção Oeste: dir_x = -1, dir_y = 0
• Direção Leste: dir_x = 1, dir_y = 0

search_plane

function that defines the player's camera plane vector based on their direction. (The plane vector is used to calculate the camera's position in three-dimensional space)

raycasting_loop

the function iterates over each column of the screen and calculates the information for a single ray for each column.

calc_delta_dist

used to determine the distance from the player to the next vertical or horizontal wall.

calc_side_dist

the side distance is the distance from the player to the next grid line in the map for each direction.

hit_wall

this function determines whether the ray hit a wall in the map or not and calculates the perpendicular distance of the collision from the side distance.

put_color

this function puts color to a given pixel in the image. The code sets different shades, creating a 3D wall effect.

raycasting_key

a function to handle key press events

move_w || move_s

the function checks if the next position of the player in the x-axis and y-axis are empty spaces on the map. If both x-axis and y-axis next positions are empty spaces, then the player's x and y position are updated to their next positions, moving the player forward in the direction of the current angle.

rotate_right

rotates the player's direction and camera plane in the clockwise direction

rotate_left

rotates the player's direction and camera plane in the counterclockwise direction