rparodi/Cub3D
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
Cub3D/test/test2.c
Raphael e581c72b02 feat: testing how to play with textures
2024-12-09 14:33:53 +01:00

341 lines
9.9 KiB
C
Raw Blame History

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* test2.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/11/27 12:09:00 by rparodi #+# #+# */
/* Updated: 2024/12/05 19:07:51 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "minilibx-linux/mlx.h"
#include "test.h"
int worldMap[MAP_WIDTH][MAP_HEIGHT] = {\
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,1,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, \
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1} \
};
void my_mlx_pixel_put(t_data *data, int x, int y, int color)
{
char *dst;
dst = data->addr + (y * data->line_length + x * (data->bits_per_pixel / 8));
*(unsigned int *)dst = color;
}
void move_straight(t_data *data)
{
if (!worldMap[\
(int)(data->pos_x + data->dir_x * MOVE_SPEED)][(int)data->pos_y])
data->pos_x += data->dir_x * MOVE_SPEED;
if (!worldMap[\
(int)data->pos_x][(int)(data->pos_y + data->dir_y * MOVE_SPEED)])
data->pos_y += data->dir_y * MOVE_SPEED;
}
void move_backward(t_data *data)
{
if (!worldMap[\
(int)(data->pos_x - data->dir_x * MOVE_SPEED)][(int)data->pos_y])
data->pos_x -= data->dir_x * MOVE_SPEED;
if (!worldMap[\
(int)data->pos_x][(int)(data->pos_y - data->dir_y * MOVE_SPEED)])
data->pos_y -= data->dir_y * MOVE_SPEED;
}
void move_left(t_data *data)
{
double perp_dir_x;
double perp_dir_y;
perp_dir_x = -data->dir_y;
perp_dir_y = data->dir_x;
if (!worldMap[\
(int)(data->pos_x + perp_dir_x * MOVE_SPEED)][(int)data->pos_y])
data->pos_x -= perp_dir_x * MOVE_SPEED;
if (!worldMap[\
(int)data->pos_x][(int)(data->pos_y - perp_dir_y * MOVE_SPEED)])
data->pos_y -= perp_dir_y * MOVE_SPEED;
}
void move_right(t_data *data)
{
double perp_dir_x;
double perp_dir_y;
perp_dir_x = -data->dir_y;
perp_dir_y = data->dir_x;
if (!worldMap[\
(int)(data->pos_x - perp_dir_x * MOVE_SPEED)][(int)data->pos_y])
data->pos_x += perp_dir_x * MOVE_SPEED;
if (!worldMap[\
(int)data->pos_x][(int)(data->pos_y + perp_dir_y * MOVE_SPEED)])
data->pos_y += perp_dir_y * MOVE_SPEED;
}
void look_left(t_data *data)
{
double old_dir_x;
double old_plane_x;
old_dir_x = data->dir_x;
old_plane_x = data->plane_x;
data->dir_x = data->dir_x * cos(ROT_SPEED) - data->dir_y * sin(ROT_SPEED);
data->dir_y = old_dir_x * sin(ROT_SPEED) + data->dir_y * cos(ROT_SPEED);
data->plane_x = data->plane_x * cos(ROT_SPEED) \
- data->plane_y * sin(ROT_SPEED);
data->plane_y = old_plane_x * sin(ROT_SPEED) \
+ data->plane_y * cos(ROT_SPEED);
}
void look_right(t_data *data)
{
double old_dir_x;
double old_plane_x;
old_dir_x = data->dir_x;
old_plane_x = data->plane_x;
data->dir_x = data->dir_x * cos(-ROT_SPEED) - data->dir_y * sin(-ROT_SPEED);
data->dir_y = old_dir_x * sin(-ROT_SPEED) + data->dir_y * cos(-ROT_SPEED);
data->plane_x = data->plane_x * cos(-ROT_SPEED) \
- data->plane_y * sin(-ROT_SPEED);
data->plane_y = old_plane_x * sin(-ROT_SPEED) \
+ data->plane_y * cos(-ROT_SPEED);
}
int key_hook(int keycode, t_data *data)
{
if (keycode == 65307)
exit(0);
if (keycode == 119)
move_straight(data);
if (keycode == 115)
move_backward(data);
if (keycode == 97)
move_right(data);
if (keycode == 100)
move_left(data);
if (keycode == 65361)
look_left(data);
if (keycode == 65363)
look_right(data);
return (0);
}
void clear_window(t_data *data)
{
int y;
int x;
y = 0;
while (y < WINDOW_HEIGHT / 2)
{
x = 0;
while (x < WINDOW_WIDTH)
{
my_mlx_pixel_put(data, x, y, 0x000000);
x++;
}
y++;
}
}
void draw_floor(t_data *data)
{
int y;
int x;
y = WINDOW_HEIGHT / 2;
while (y < WINDOW_HEIGHT)
{
x = 0;
while (x < WINDOW_WIDTH)
{
my_mlx_pixel_put(data, x, y, 0xFFFFFF);
x++;
}
y++;
}
}
int render_frame(t_data *data)
{
clear_window(data);
draw_floor(data);
for(int x = 0; x < WINDOW_WIDTH; x++)
{
double cameraX = 2 * x / (double)WINDOW_WIDTH - 1;
double rayDirX = data->dir_x + data->plane_x * cameraX;
double rayDirY = data->dir_y + data->plane_y * cameraX;
int mapX = (int)data->pos_x;
int mapY = (int)data->pos_y;
double sideDistX, sideDistY;
double deltaDistX = fabs(1 / rayDirX);
double deltaDistY = fabs(1 / rayDirY);
double perpWallDist;
int stepX, stepY;
int hit = 0;
int side;
if (rayDirX < 0) {
stepX = -1;
sideDistX = (data->pos_x - mapX) * deltaDistX;
} else {
stepX = 1;
sideDistX = (mapX + 1.0 - data->pos_x) * deltaDistX;
}
if (rayDirY < 0) {
stepY = -1;
sideDistY = (data->pos_y - mapY) * deltaDistY;
} else {
stepY = 1;
sideDistY = (mapY + 1.0 - data->pos_y) * deltaDistY;
}
while (hit == 0) {
if (sideDistX < sideDistY) {
sideDistX += deltaDistX;
mapX += stepX;
side = 0;
} else {
sideDistY += deltaDistY;
mapY += stepY;
side = 1;
}
if (worldMap[mapX][mapY] > 0)
hit = 1;
}
if (side == 0)
perpWallDist = (mapX - data->pos_x + (1 - stepX) / 2) / rayDirX;
else
perpWallDist = (mapY - data->pos_y + (1 - stepY) / 2) / rayDirY;
int lineHeight = (int)(WINDOW_HEIGHT / perpWallDist);
int drawStart = -lineHeight / 2 + WINDOW_HEIGHT / 2;
if(drawStart < 0) drawStart = 0;
int drawEnd = lineHeight / 2 + WINDOW_HEIGHT / 2;
if(drawEnd >= WINDOW_HEIGHT) drawEnd = WINDOW_HEIGHT - 1;
// Get correct wall texture based on direction
t_texture *wall_tex;
if (side == 0)
{
if (stepX > 0)
wall_tex = &data->wall_so;
else
wall_tex = &data->wall_no;
}
else
{
if (stepY > 0)
wall_tex = &data->wall_ea;
else
wall_tex = &data->wall_we;
}
// Wall texture calculations
double wallX;
if (side == 0) wallX = data->pos_y + perpWallDist * rayDirY;
else wallX = data->pos_x + perpWallDist * rayDirX;
wallX -= floor(wallX);
int texX = (int)(wallX * (double)wall_tex->width);
double step = 1.0 * wall_tex->height / lineHeight;
double texPos = (drawStart - WINDOW_HEIGHT / 2 + lineHeight / 2) * step;
for(int y = drawStart; y < drawEnd; y++)
{
int texY = (int)texPos & (wall_tex->height - 1);
texPos += step;
char *tex_pixel = wall_tex->addr + (texY * wall_tex->line_length + texX * (wall_tex->bits_per_pixel / 8));
my_mlx_pixel_put(data, x, y, *(unsigned int*)tex_pixel);
}
}
mlx_put_image_to_window(data->mlx, data->win, data->img, 0, 0);
return (0);
}
int main(void)
{
t_data data;
int width, height;
data.mlx = mlx_init();
data.win = mlx_new_window(data.mlx, WINDOW_WIDTH, WINDOW_HEIGHT, "Raycaster");
data.img = mlx_new_image(data.mlx, WINDOW_WIDTH, WINDOW_HEIGHT);
data.addr = mlx_get_data_addr(data.img, &data.bits_per_pixel, &data.line_length, &data.endian);
// Load wall textures
data.wall_no.img = mlx_xpm_file_to_image(data.mlx, "./textures/b.xpm", &width, &height);
data.wall_no.addr = mlx_get_data_addr(data.wall_no.img, &data.wall_no.bits_per_pixel,
&data.wall_no.line_length, &data.wall_no.endian);
data.wall_no.width = width;
data.wall_no.height = height;
data.wall_so.img = mlx_xpm_file_to_image(data.mlx, "./textures/cobblestone_32.xpm", &width, &height);
data.wall_so.addr = mlx_get_data_addr(data.wall_so.img, &data.wall_so.bits_per_pixel,
&data.wall_so.line_length, &data.wall_so.endian);
data.wall_so.width = width;
data.wall_so.height = height;
data.wall_we.img = mlx_xpm_file_to_image(data.mlx, "./textures/sandy_32.xpm", &width, &height);
data.wall_we.addr = mlx_get_data_addr(data.wall_we.img, &data.wall_we.bits_per_pixel,
&data.wall_we.line_length, &data.wall_we.endian);
data.wall_we.width = width;
data.wall_we.height = height;
data.wall_ea.img = mlx_xpm_file_to_image(data.mlx, "./textures/wasteland_32.xpm", &width, &height);
data.wall_ea.addr = mlx_get_data_addr(data.wall_ea.img, &data.wall_ea.bits_per_pixel,
&data.wall_ea.line_length, &data.wall_ea.endian);
data.wall_ea.width = width;
data.wall_ea.height = height;
// Load floor texture
data.floor.img = mlx_xpm_file_to_image(data.mlx, "./textures/b.xpm", &width, &height);
data.floor.addr = mlx_get_data_addr(data.floor.img, &data.floor.bits_per_pixel,
&data.floor.line_length, &data.floor.endian);
data.floor.width = width;
data.floor.height = height;
data.pos_x = 22;
data.pos_y = 12;
data.dir_x = -1;
data.dir_y = 0;
data.plane_x = 0;
data.plane_y = 0.66;
mlx_hook(data.win, 2, 1L<<0, key_hook, &data);
mlx_loop_hook(data.mlx, render_frame, &data);
mlx_loop(data.mlx);
return (0);
}
Reference in a new issue View git blame Copy permalink