#ifndef PEOPLE_CLIMB_H
#define PEOPLE_CLIMB_H

/*
 * Pulling up onto something (a ledge, a wall, over the top of a ladder):
 * anybody, the player or the others. Climb_start sets the move up (in the
 * person's climb_move), Climb_update plays it: up, the hands on the edge,
 * the feet against the face, a knee over, standing on top.
 */

#include "world/world.h"

#define CLIMB_EASY  1.35f  /* ledges up to this high (scaled) are climbed with a hand on them */
#define CLIMB_REACH 2.05f  /* the hands reach this high over the feet, arms up (scaled): anything up there can be climbed */

enum { CLIMB_EASY_UP, CLIMB_HARD, CLIMB_NO_HANDS, CLIMB_NO_STRENGTH, CLIMB_NO_GRIP };

/* What's in front at climbing distance and could be climbed: its top (the edge), or -1e9. */
float Climb_ledgeAhead(const World *world, const Object *p, Vec3 *probe_out);
/* Where the feet are as a climb starts (it eases on from there). */
void  Climb_noteFeet(Object *p);
/* Where the body will stand up there (the highest point under its footprint). */
float Climb_standHeight(const World *world, const Object *p, Vec3 to, float s);
/* Starts pulling up onto the edge at top (probe: where it was found). CLIMB_EASY_UP / CLIMB_HARD: started; else why not. */
int   Climb_start(const World *world, Object *p, float top, Vec3 probe);
/* From the top of a leaning ladder over its edge onto what it leans on: false if there's nothing to stand on. */
bool  Climb_overLadderTop(const World *world, Object *p, const Object *ladder);
/* Plays the pull up; true when it's done (standing on top). */
bool  Climb_update(const World *world, Object *p, float dt);

#endif /* PEOPLE_CLIMB_H */