Smooth

1 files changed, 67 insertions, 0 deletions

diff --git a/src/ft_detect.c b/src/ft_detect.c
new file mode 100644
index 0000000..b83c9f1
--- /dev/null
+++ b/src/ft_detect.c
@@ -0,0 +1,67 @@
+#include <cub3d.h>
+#include <math.h>
+
+static void
+ft_detection_init_y(t_cub *cl)
+{
+	cl->rlist.y_delta_dist = sqrt(1 + (cl->rlist.x_ray_dir *
+		cl->rlist.x_ray_dir) / (cl->rlist.y_ray_dir *
+		cl->rlist.y_ray_dir));
+	if (cl->rlist.y_ray_dir < 0)
+	{
+		cl->y_step = -1;
+		cl->rlist.y_side_dist = (cl->rlist.y_ray_pos -
+			cl->rlist.sqy) * cl->rlist.y_delta_dist;
+	}
+	else
+	{
+		cl->y_step = 1;
+		cl->rlist.y_side_dist = (cl->rlist.sqy + 1.0 -
+			cl->rlist.y_ray_pos) * cl->rlist.y_delta_dist;
+	}
+}
+
+static void
+ft_detection_init_x(t_cub *cl)
+{
+	cl->rlist.x_delta_dist = sqrt(1 + (cl->rlist.y_ray_dir *
+		cl->rlist.y_ray_dir) / (cl->rlist.x_ray_dir *
+		cl->rlist.x_ray_dir));
+	if (cl->rlist.x_ray_dir < 0)
+	{
+		cl->x_step = -1;
+		cl->rlist.x_side_dist = (cl->rlist.x_ray_pos -
+			cl->rlist.sqx) * cl->rlist.x_delta_dist;
+	}
+	else
+	{
+		cl->x_step = 1;
+		cl->rlist.x_side_dist = (cl->rlist.sqx + 1.0 -
+			cl->rlist.x_ray_pos) * cl->rlist.x_delta_dist;
+	}
+	ft_detection_init_y(cl);
+}
+
+void
+ft_detect(t_cub *cl)
+{
+	ft_detection_init_x(cl);
+	cl->rlist.hit = 0;	
+	while (cl->rlist.hit == 0)
+	{
+		if (cl->rlist.x_side_dist < cl->rlist.y_side_dist)
+		{
+			cl->rlist.x_side_dist += cl->rlist.x_delta_dist;
+			cl->rlist.sqx += cl->x_step;
+			cl->rlist.side = 0;
+		}
+		else
+		{
+			cl->rlist.y_side_dist += cl->rlist.y_delta_dist;
+			cl->rlist.sqy += cl->y_step;
+			cl->rlist.side = 1;
+		}
+		if (cl->map[cl->rlist.sqx][cl->rlist.sqy] == '1')
+			cl->rlist.hit = 1;
+	}
+}