nuclear@4: #include <stdio.h>
nuclear@4: #include "player.h"
nuclear@4: #include "level.h"
nuclear@4: 
nuclear@4: static char *dirnames[] = {
nuclear@4: 	"north", "east", "south", "west"
nuclear@4: };
nuclear@4: 
nuclear@4: void player_init(struct player *p, struct level *lvl)
nuclear@4: {
nuclear@4: 	p->x = lvl->start_pos[0];
nuclear@4: 	p->y = lvl->start_pos[1];
nuclear@4: 	p->lvl = lvl;
nuclear@4: 	p->dir = DIR_NORTH;
nuclear@4: }
nuclear@4: 
nuclear@4: int player_move(struct player *p, int dfwd, int dside)
nuclear@4: {
nuclear@4: 	int nx, ny;
nuclear@4: 	int dx, dy;
nuclear@4: 
nuclear@4: 	player_dir_vec(p, &dx, &dy);
nuclear@4: 	nx = p->x + dx * dfwd - dy * dside;
nuclear@4: 	ny = p->y + dy * dfwd + dx * dside;
nuclear@4: 
nuclear@4: 	if(level_cell(p->lvl, nx, ny) == '#') {
nuclear@4: 		return -1;
nuclear@4: 	}
nuclear@4: 	p->x = nx;
nuclear@4: 	p->y = ny;
nuclear@4: 	return 0;
nuclear@4: }
nuclear@4: 
nuclear@4: void player_turn(struct player *p, int angle)
nuclear@4: {
nuclear@4: 	int dir = (p->dir + angle) % 4;
nuclear@4: 	if(dir < 0) dir += 4;
nuclear@4: 
nuclear@4: 	printf("turn(%d): %s -> %s\n", angle, dirnames[p->dir], dirnames[dir]);
nuclear@4: 	p->dir = dir;
nuclear@4: }
nuclear@4: 
nuclear@4: void player_dir_vec(struct player *p, int *dx, int *dy)
nuclear@4: {
nuclear@4: 	*dx = p->dir == DIR_EAST ? 1 : (p->dir == DIR_WEST ? -1 : 0);
nuclear@4: 	*dy = p->dir == DIR_NORTH ? -1 : (p->dir == DIR_SOUTH ? 1 : 0);
nuclear@4: }