60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* setup_dda.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: adjoly <adjoly@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/09/30 23:47:14 by adjoly #+# #+# */
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/* Updated: 2024/10/07 19:05:59 by adjoly ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "game/settings.h"
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#include "game/dda.h"
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#include <stdlib.h>
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#include <stdbool.h>
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#include <math.h>
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void get_side_dist(t_dda *dda, t_coord incell_coords, t_player *player)
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{
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if (dda->ray_dir.x < 0)
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{
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dda->side_dist.x = incell_coords.x * dda->delta_dist.x;
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dda->step.x = -MAP_CHUNK_SIZE;
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}
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else
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{
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dda->side_dist.x = (((int)player->coords.x + MAP_CHUNK_SIZE) - player->coords.x) * dda->delta_dist.x;
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dda->step.x = MAP_CHUNK_SIZE;
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}
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if (dda->ray_dir.y < 0)
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{
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dda->side_dist.y = incell_coords.y * dda->delta_dist.y;
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dda->step.y = -MAP_CHUNK_SIZE;
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}
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else
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{
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dda->side_dist.y = (((int)player->coords.y + MAP_CHUNK_SIZE) - player->coords.y) * dda->delta_dist.y;
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dda->step.y = MAP_CHUNK_SIZE;
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}
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}
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void setup_dda(t_dda (*dda)[800], t_player *player)
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{
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size_t i;
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t_coord incell_coords;
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i = 0;
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get_ray_angle(player, dda);
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incell_coords.x = player->coords.x % MAP_CHUNK_SIZE;
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incell_coords.y = player->coords.y % MAP_CHUNK_SIZE;
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while (i < WINDOW_X / RAY_SIZE)
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{
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dda[i]->delta_dist.x = abs((int)(MAP_CHUNK_SIZE / dda[i]->ray_dir.x));
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dda[i]->delta_dist.y = abs((int)(MAP_CHUNK_SIZE / dda[i]->ray_dir.y));
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get_side_dist(dda[i], incell_coords, player);
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i++;
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}
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}
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