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added line drawing and projection to fdf.c

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This commit is contained in:
whaffman 2024-12-08 13:21:46 +01:00
parent 7b195e4536
commit ddad475c7d
1 changed files with 53 additions and 28 deletions
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75
src/fdf.c
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@ -78,7 +78,8 @@ int read_map(char *filename, t_map *map)
{
map->points[y * map->width + x].x = x - map->width / 2;
map->points[y * map->width + x].y = map->height / 2 - y;
map->points[y * map->width + x].z = ft_atoi(split[x]) * 0.05;
map->points[y * map->width + x].z = ft_atoi(split[x]) * 0.14;
map->points[y * map->width + x].color = 0xFFFFFFFF;
x++;
}
free_line_and_split(&line, &split);
@ -119,21 +120,57 @@ t_map *parse_map(char *filename)
return (ft_printf(MALLOC_ERROR), NULL);
if (!get_map_sizes(filename, map))
return (free(map), NULL);
map->points = malloc(map->width * map->height * sizeof(t_point));
map->points = malloc(map->width * map->height * sizeof(t_point_3d));
if (!map->points)
return (free(map), ft_printf(MALLOC_ERROR), NULL);
if (!read_map(filename, map))
return (free(map->points), free(map), NULL);
return (map);
}
void fdf_set_background(mlx_image_t *img, int color)
{
int x;
int y;
y = 0;
while (y < (int) img->height)
{
x = 0;
while (x < (int) img->width)
{
mlx_put_pixel(img, x, y, color);
x++;
}
y++;
}
}
void fdf_project_isometric(t_map *map)
{
int i;
double x;
double y;
i = 0;
map->projected = malloc(map->width * map->height * sizeof(t_point_2d));
if (!map->projected)
return ;
while (i < map->width * map->height)
{
x = (map->points[i].x - map->points[i].y) * cos(0.523599);
y = -map->points[i].z + (map->points[i].x + map->points[i].y) * sin(0.523599);
map->projected[i].x = x * 0.5 * WIDTH * 0.1 + WIDTH / 2;
map->projected[i].y = y * 0.5 * HEIGHT * 0.1 + HEIGHT / 2;
map->projected[i].color = map->points[i].color;
i++;
}
}
int draw_map(t_map *map)
{
mlx_t* mlx;
mlx_image_t* img;
int i;
int x;
int y;
mlx = mlx_init(WIDTH, HEIGHT, "FdF", false);
if (!mlx)
@ -142,27 +179,15 @@ int draw_map(t_map *map)
i = 0;
if (!img || (mlx_image_to_window(mlx, img, 0, 0) < 0))
return (EXIT_FAILURE);
x = 0;
while (x < WIDTH)
{
y = 0;
while (y < HEIGHT)
{
mlx_put_pixel(img, x, y, 0x000000FF);
y++;
}
x++;
}
fdf_set_background(img, 0x000000FF);
fdf_project_isometric(map);
while (i < map->width * map->height)
{
x = WIDTH / 2 + map->points[i].x * WIDTH / 2.0 / map->height;
y = HEIGHT / 2 + map->points[i].z * HEIGHT / 2.0 / map->height;
//printf("x: %.2f, y: %.2f\n", x, y);
if (x >= 0 && x < WIDTH && y >= 0 && y < HEIGHT)
mlx_put_pixel(img,x + WIDTH , HEIGHT- y, 0xFFFFFFFF);
fdf_put_pixel(img, map->projected[i]);
if (i % map->width != map->width - 1)
fdf_draw_line(img, map->projected[i], map->projected[i + 1]);
if (i / map->width != map->height - 1)
fdf_draw_line(img, map->projected[i], map->projected[i + map->width]);
i++;
}
mlx_loop(mlx);
@ -187,8 +212,8 @@ int main(int argc, char *argv[])
map = parse_map(argv[1]);
if (!map)
return (EXIT_FAILURE);
rotate_z(&map->points, deg2rad(30) , map->width * map->height);
rotate_x(&map->points, deg2rad(70), map->width * map->height);
// rotate_z(&map->points, deg2rad(30) , map->width * map->height);
//rotate_x(&map->points, deg2rad(70), map->width * map->height);
draw_map(map);
return (EXIT_SUCCESS);
}