42/42_INT_10_cube3d
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wall grows proportionally

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This commit is contained in:
hugogogo
2022-04-25 09:13:10 +02:00
parent 03f61d989b
commit 0d9e5879c0
4 changed files with 25 additions and 16 deletions
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2
headers/cube3d_macro.h
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@@ -17,6 +17,8 @@
# define SCREEN_FOCAL 90 # define SCREEN_FOCAL 90
/* size of a cell on the map */ /* size of a cell on the map */
# define CELL 20 # define CELL 20
/* height of a wall without perpectiv */
# define WALL_HEIGHT 300
/* /*
* keys macro * keys macro

1
headers/cube3d_struct.h
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@@ -36,6 +36,7 @@ typedef struct s_rcast
t_vec screen_size; t_vec screen_size;
t_vec ray; t_vec ray;
t_vec wall; t_vec wall;
int wall_height;
int screen_width; int screen_width;
int screen_height; int screen_height;
int cell; int cell;

35
srcs/draw/raycast.c
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@@ -32,14 +32,18 @@
static void calcul_wall(t_rcast *rcast) static void calcul_wall(t_rcast *rcast)
{ {
int length;
int height; int height;
rcast->wall.start.x = rcast->ray_nb; rcast->wall.start.x = rcast->ray_nb;
rcast->wall.end.x = rcast->ray_nb; rcast->wall.end.x = rcast->ray_nb;
if (rcast->is_x == 1 && rcast->slope_y != 0) if (rcast->is_x == 1 && rcast->slope_y != 0)
height = (rcast->next_x - rcast->ray_step_x) / ft_abs(rcast->slope_y); length = (rcast->next_x - rcast->ray_step_x) / ft_abs(rcast->slope_y);
if (rcast->is_x == 0 && rcast->slope_x != 0) if (rcast->is_x == 0 && rcast->slope_x != 0)
height = (rcast->next_y - rcast->ray_step_y) / ft_abs(rcast->slope_x); length = (rcast->next_y - rcast->ray_step_y) / ft_abs(rcast->slope_x);
height = rcast->wall_height - length;
if (height < 0)
height = 0;
if (height > rcast->screen_height) if (height > rcast->screen_height)
height = rcast->screen_height; height = rcast->screen_height;
rcast->wall.start.y = rcast->screen_height / 2 + height / 2; rcast->wall.start.y = rcast->screen_height / 2 + height / 2;
@@ -48,26 +52,27 @@ static void calcul_wall(t_rcast *rcast)
void draw_column(t_game *game, t_rcast *rcast) void draw_column(t_game *game, t_rcast *rcast)
{ {
t_vec floor; t_vec plane;
t_vec ceilling; int color;
plane.start.x = rcast->ray_nb;
plane.end.x = rcast->ray_nb;
if (rcast->wall.start.y > 0) if (rcast->wall.start.y > 0)
{ {
floor.start.x = rcast->ray_nb; plane.start.y = rcast->screen_height;
floor.end.x = rcast->ray_nb; plane.end.y = rcast->wall.start.y;
floor.start.y = rcast->screen_height; draw_line(&game->img, &plane, 0x00FF0000);
floor.end.y = rcast->wall.start.y;
draw_line(&game->img, &floor, 0x00FF0000);
} }
if (rcast->wall.start.y < rcast->screen_height) if (rcast->wall.start.y < rcast->screen_height)
{ {
ceilling.start.x = rcast->ray_nb; plane.start.y = rcast->wall.end.y;
ceilling.end.x = rcast->ray_nb; plane.end.y = 0;
ceilling.start.y = rcast->wall.end.y; draw_line(&game->img, &plane, 0x000000FF);
ceilling.end.y = 0;
draw_line(&game->img, &ceilling, 0x00FF0000);
} }
draw_line(&game->img, &rcast->wall, 0x00FF00FF); color = 0x00FF00FF;
if (rcast->is_x)
color = 0x00EE00EE;
draw_line(&game->img, &rcast->wall, color);
} }
void raycast(t_game *game, t_rcast *rcast) void raycast(t_game *game, t_rcast *rcast)

1
srcs/init/init_struct.c
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@@ -70,6 +70,7 @@ static void init_raycast(t_rcast *rcast)
dist = cos(dist) * ((SCREEN_WIDTH / 2) / sin(dist)); dist = cos(dist) * ((SCREEN_WIDTH / 2) / sin(dist));
rcast->screen_width = SCREEN_WIDTH; rcast->screen_width = SCREEN_WIDTH;
rcast->screen_height = SCREEN_HEIGHT; rcast->screen_height = SCREEN_HEIGHT;
rcast->wall_height = WALL_HEIGHT;
// screen dist // screen dist
rcast->screen_dist.start.x = 0; rcast->screen_dist.start.x = 0;
rcast->screen_dist.start.y = 0; rcast->screen_dist.start.y = 0;