feat: raycasting functionnal
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Raphael
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19 changed files with 1183 additions and 101 deletions
263
test/test.c
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263
test/test.c
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* test.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/11/27 12:09:00 by rparodi #+# #+# */
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/* Updated: 2024/11/27 15:59:53 by rparodi ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "test.h"
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int worldMap[MAP_WIDTH][MAP_HEIGHT] = {\
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{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,1,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
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{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1} \
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};
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void my_mlx_pixel_put(t_data *data, int x, int y, int color)
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{
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char *dst;
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dst = data->addr + (y * data->line_length + x * (data->bits_per_pixel / 8));
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*(unsigned int *)dst = color;
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}
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void move_straight(t_data *data)
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{
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if (!worldMap[\
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(int)(data->pos_x + data->dir_x * MOVE_SPEED)][(int)data->pos_y])
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data->pos_x += data->dir_x * MOVE_SPEED;
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if (!worldMap[\
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(int)data->pos_x][(int)(data->pos_y + data->dir_y * MOVE_SPEED)])
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data->pos_y += data->dir_y * MOVE_SPEED;
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}
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void move_backward(t_data *data)
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{
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if (!worldMap[\
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(int)(data->pos_x - data->dir_x * MOVE_SPEED)][(int)data->pos_y])
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data->pos_x -= data->dir_x * MOVE_SPEED;
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if (!worldMap[\
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(int)data->pos_x][(int)(data->pos_y - data->dir_y * MOVE_SPEED)])
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data->pos_y -= data->dir_y * MOVE_SPEED;
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}
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void move_left(t_data *data)
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{
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double perp_dir_x;
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double perp_dir_y;
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perp_dir_x = -data->dir_y;
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perp_dir_y = data->dir_x;
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if (!worldMap[\
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(int)(data->pos_x + perp_dir_x * MOVE_SPEED)][(int)data->pos_y])
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data->pos_x -= perp_dir_x * MOVE_SPEED;
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if (!worldMap[\
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(int)data->pos_x][(int)(data->pos_y - perp_dir_y * MOVE_SPEED)])
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data->pos_y -= perp_dir_y * MOVE_SPEED;
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}
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void move_right(t_data *data)
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{
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double perp_dir_x;
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double perp_dir_y;
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perp_dir_x = -data->dir_y;
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perp_dir_y = data->dir_x;
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if (!worldMap[\
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(int)(data->pos_x - perp_dir_x * MOVE_SPEED)][(int)data->pos_y])
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data->pos_x += perp_dir_x * MOVE_SPEED;
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if (!worldMap[\
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(int)data->pos_x][(int)(data->pos_y + perp_dir_y * MOVE_SPEED)])
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data->pos_y += perp_dir_y * MOVE_SPEED;
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}
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void look_left(t_data *data)
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{
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double old_dir_x;
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double old_plane_x;
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old_dir_x = data->dir_x;
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old_plane_x = data->plane_x;
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data->dir_x = data->dir_x * cos(ROT_SPEED) - data->dir_y * sin(ROT_SPEED);
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data->dir_y = old_dir_x * sin(ROT_SPEED) + data->dir_y * cos(ROT_SPEED);
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data->plane_x = data->plane_x * cos(ROT_SPEED) \
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- data->plane_y * sin(ROT_SPEED);
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data->plane_y = old_plane_x * sin(ROT_SPEED) \
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+ data->plane_y * cos(ROT_SPEED);
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}
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void look_right(t_data *data)
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{
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double old_dir_x;
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double old_plane_x;
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old_dir_x = data->dir_x;
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old_plane_x = data->plane_x;
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data->dir_x = data->dir_x * cos(-ROT_SPEED) - data->dir_y * sin(-ROT_SPEED);
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data->dir_y = old_dir_x * sin(-ROT_SPEED) + data->dir_y * cos(-ROT_SPEED);
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data->plane_x = data->plane_x * cos(-ROT_SPEED) \
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- data->plane_y * sin(-ROT_SPEED);
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data->plane_y = old_plane_x * sin(-ROT_SPEED) \
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+ data->plane_y * cos(-ROT_SPEED);
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}
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int key_hook(int keycode, t_data *data)
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{
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if (keycode == 65307)
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exit(0);
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if (keycode == 119)
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move_straight(data);
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if (keycode == 115)
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move_backward(data);
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if (keycode == 97)
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move_right(data);
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if (keycode == 100)
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move_left(data);
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if (keycode == 65361)
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look_left(data);
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if (keycode == 65363)
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look_right(data);
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return (0);
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}
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int render_frame(t_data *data)
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{
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int y;
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int x;
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y = 0;
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while (y < WINDOW_HEIGHT)
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{
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x = 0;
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while (x < WINDOW_WIDTH)
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{
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my_mlx_pixel_put(data, x, y, 0x00000000);
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x++;
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}
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y++;
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}
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for(int x = 0; x < WINDOW_WIDTH; x++)
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{
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double cameraX = 2 * x / (double)WINDOW_WIDTH - 1;
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double rayDirX = data->dir_x + data->plane_x * cameraX;
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double rayDirY = data->dir_y + data->plane_y * cameraX;
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int mapX = (int)data->pos_x;
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int mapY = (int)data->pos_y;
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double sideDistX, sideDistY;
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double deltaDistX = fabs(1 / rayDirX);
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double deltaDistY = fabs(1 / rayDirY);
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double perpWallDist;
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int stepX, stepY;
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int hit = 0;
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int side;
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if (rayDirX < 0) {
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stepX = -1;
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sideDistX = (data->pos_x - mapX) * deltaDistX;
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} else {
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stepX = 1;
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sideDistX = (mapX + 1.0 - data->pos_x) * deltaDistX;
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}
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if (rayDirY < 0) {
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stepY = -1;
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sideDistY = (data->pos_y - mapY) * deltaDistY;
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} else {
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stepY = 1;
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sideDistY = (mapY + 1.0 - data->pos_y) * deltaDistY;
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}
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while (hit == 0) {
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if (sideDistX < sideDistY) {
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sideDistX += deltaDistX;
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mapX += stepX;
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side = 0;
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} else {
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sideDistY += deltaDistY;
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mapY += stepY;
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side = 1;
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}
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if (worldMap[mapX][mapY] > 0)
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hit = 1;
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}
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if (side == 0)
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perpWallDist = (mapX - data->pos_x + (1 - stepX) / 2) / rayDirX;
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else
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perpWallDist = (mapY - data->pos_y + (1 - stepY) / 2) / rayDirY;
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int lineHeight = (int)(WINDOW_HEIGHT / perpWallDist);
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int drawStart = -lineHeight / 2 + WINDOW_HEIGHT / 2;
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if(drawStart < 0) drawStart = 0;
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int drawEnd = lineHeight / 2 + WINDOW_HEIGHT / 2;
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if(drawEnd >= WINDOW_HEIGHT) drawEnd = WINDOW_HEIGHT - 1;
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int color;
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if (side == 0 && stepX > 0)
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color = 0x00FF0000;
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else if (side == 0 && stepX < 0)
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color = 0x0000FF00;
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else if (side == 1 && stepY > 0)
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color = 0x000000FF;
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else
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color = 0x00FFFF00;
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if (side == 1) color = (color >> 1) & 8355711; // Make sides darker
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for(int y = drawStart; y < drawEnd; y++)
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my_mlx_pixel_put(data, x, y, color);
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}
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mlx_put_image_to_window(data->mlx, data->win, data->img, 0, 0);
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return (0);
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}
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int main(void)
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{
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t_data data;
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data.mlx = mlx_init();
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data.win = mlx_new_window(data.mlx, WINDOW_WIDTH, WINDOW_HEIGHT, "Raycaster");
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data.img = mlx_new_image(data.mlx, WINDOW_WIDTH, WINDOW_HEIGHT);
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data.addr = mlx_get_data_addr(data.img, &data.bits_per_pixel, &data.line_length, &data.endian);
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data.pos_x = 22;
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data.pos_y = 12;
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data.dir_x = -1;
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data.dir_y = 0;
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data.plane_x = 0;
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data.plane_y = 0.66;
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mlx_hook(data.win, 2, 1L<<0, key_hook, &data);
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mlx_loop_hook(data.mlx, render_frame, &data);
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mlx_loop(data.mlx);
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return (0);
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}
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