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#include "comp.h"
#include "match.h"
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
struct leg *leg_init(int pts)
{
struct leg *l = calloc(1, sizeof(*l));
l->start = l->rem = pts;
l->size_visits = 16;
l->visits = calloc(l->size_visits, sizeof(*l->visits));
return l;
}
void leg_free(struct leg *l)
{
// readd undone visits before free to avoid memory leak
l->n_visits += l->undone_visits;
for (int i = 0; i < l->n_visits; ++i) {
free(l->visits[i].darts);
free(l->visits[i].ccoords);
}
free(l->visits);
free(l);
}
static void leg_grow_visits(struct leg *l)
{
size_t bytes = l->size_visits * sizeof(*l->visits);
l->size_visits *= 2;
l->visits = realloc(l->visits, 2 * bytes);
memset((char *)l->visits + bytes, 0, bytes);
}
struct visit *leg_visit(struct leg *l)
{
if (l->n_visits == l->size_visits)
leg_grow_visits(l);
return l->visits + l->n_visits++;
}
void leg_undo_visit(struct leg *l)
{
l->rem += l->visits[--l->n_visits].points;
++l->undone_visits;
}
struct visit *leg_redo_visit(struct leg *l)
{
struct visit *v = l->visits + l->n_visits++;
l->rem = v->rem;
--l->undone_visits;
return v;
}
static void leg_clear_first_undone(struct leg *l)
{
free(l->visits[l->n_visits].darts);
free(l->visits[l->n_visits].ccoords);
memset(l->visits + l->n_visits, 0, sizeof(*l->visits));
--l->undone_visits;
}
struct visit *leg_comp_visit(struct leg *l, bool redo_undone)
{
if (redo_undone && l->undone_visits)
return leg_redo_visit(l);
if (l->undone_visits)
leg_clear_first_undone(l);
comp_visit(l);
struct visit *v = l->visits + l->n_visits - 1;
return v;
}
struct visit *leg_pts_visit(struct leg *l, int pts)
{
if (!is_points_valid(pts, l->rem))
return NULL;
if (l->undone_visits)
leg_clear_first_undone(l);
struct visit *v = leg_visit(l);
v->points = pts;
l->rem -= pts;
v->rem = l->rem;
return v;
}
struct match *match_init()
{
struct match *m = calloc(1, sizeof(*m));
m->size_players = 2;
m->players = malloc(m->size_players * sizeof(*m->players));
m->legs = malloc(m->size_players * sizeof(*m->legs));
return m;
}
void match_free(struct match *m)
{
for (int i = 0; i < m->n_players; ++i) {
free(m->players[i].name);
leg_free(m->legs[i]);
}
free(m->players);
free(m->legs);
free(m);
}
static void match_grow_players(struct match *m)
{
m->size_players *= 2;
m->players = realloc(m->players,
m->size_players * sizeof(*m->players));
m->legs = realloc(m->legs,
m->size_players * sizeof(*m->legs));
}
void match_add_player(struct match *m, enum player_type type, char *name,
int start_pts)
{
if (m->n_players == m->size_players)
match_grow_players(m);
int i = m->n_players++;
if (!m->starting_player)
m->starting_player = i;
struct player *p = m->players + i;
p->type = type;
p->name = strdup(name);
m->legs[i] = leg_init(start_pts);
}
int match_next_player(struct match *m)
{
if (m->active_player == m->n_players)
return 1;
else
return m->active_player + 1;
}
int match_prev_player(struct match *m)
{
if (m->active_player == 1)
return m->n_players;
else
return m->active_player - 1;
}
int match_prev_throw_player(struct match *m)
{
int pn = match_winning_player(m);
return pn ? pn : match_prev_player(m);
}
int match_winning_player(struct match *m)
{
for (int i = 0; i < m->n_players; ++i) {
if (m->legs[i]->rem == 0)
return i + 1;
}
return 0;
}
bool match_first_user_has_thrown(struct match *m)
{
for (int i = 0; i < m->n_players; ++i) {
int pn = m->starting_player + i;
if (pn > m->n_players)
pn -= m->n_players;
if (m->players[pn - 1].type == PT_USER)
return !!m->legs[pn - 1]->n_visits;
}
return false;
}
bool is_points_valid(int pts, int rem)
{
return pts <= rem &&
rem - pts != 1 &&
pts >= 0 &&
pts <= 180 &&
pts != 179 &&
pts != 178 &&
pts != 176 &&
pts != 175 &&
pts != 173 &&
pts != 172 &&
pts != 169 &&
pts != 166 &&
pts != 163 &&
(rem - pts != 0 ||
(pts <= 170 &&
pts != 168 &&
pts != 165 &&
pts != 162 &&
pts != 159));
}
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