#include "keybindings.h"
#include "readwrite.h"
-#define NORTH 1
-#define EAST 2
-#define SOUTH 3
-#define WEST 4
-
uint16_t rrand(char use_seed, uint32_t new_seed) {
// Pseudo-random number generator (LGC algorithm). Use instead of rand() to ensure portable predictability.
static uint32_t seed;
passable = 1;
return passable; }
-struct yx_uint16 mv_yx_in_dir (char d, struct yx_uint16 yx) {
-// Return yx coordinates one step to the direction d of yx.
- if (d == NORTH) yx.y--;
- else if (d == EAST) yx.x++;
- else if (d == SOUTH) yx.y++;
- else if (d == WEST) yx.x--;
- return yx; }
-
void move_monster (struct World * world, struct Monster * monster) {
// Move monster in random direction, trigger fighting when hindered by player/monster.
char d = rrand(0, 0) % 5;
if (yx_uint16_cmp (t, world->player->pos)) {
update_log (world, "\nThe monster hits you.");
return; }
- char met_monster = 0;
struct Monster * other_monster;
for (other_monster = world->monster; other_monster != 0; other_monster = other_monster->next) {
if (other_monster == monster)
continue;
if (yx_uint16_cmp (t, other_monster->pos)) {
- met_monster = 1;
- break; } }
- if (met_monster)
- update_log (world, "\nMonster hits monster.");
- else if (is_passable(world->map, t.y, t.x))
+ update_log (world, "\nMonster hits monster.");
+ return; } }
+ if (is_passable(world->map, t.y, t.x))
monster->pos = t; }
void move_player (struct World * world, char d) {
// Move player in direction d, increment turn counter and update log.
- char success = 0;
struct yx_uint16 t = mv_yx_in_dir (d, world->player->pos);
struct Monster * monster;
for (monster = world->monster; monster != 0; monster = monster->next)
if (yx_uint16_cmp (t, monster->pos)) {
- success = 2;
- break; }
- if (2 != success && is_passable(world->map, t.y, t.x)) {
- success = 1;
+ update_log (world, "\nYou hit the monster.");
+ turn_over (world, d);
+ return; }
+ char * msg = calloc(25, sizeof(char));
+ char * msg_content = "You fail to move";
+ char * dir;
+ if (NORTH == d) dir = "north";
+ else if (EAST == d) dir = "east" ;
+ else if (SOUTH == d) dir = "south";
+ else if (WEST == d) dir = "west" ;
+ if (is_passable(world->map, t.y, t.x)) {
+ msg_content = "You move";
world->player->pos = t; }
- if (2 == success)
- update_log (world, "\nYou hit the monster.");
- else {
- char * dir;
- if (NORTH == d) dir = "north";
- else if (EAST == d) dir = "east" ;
- else if (SOUTH == d) dir = "south";
- else if (WEST == d) dir = "west" ;
- char * msg = calloc(25, sizeof(char));
- char * msg_content = "You fail to move";
- if (1 == success)
- msg_content = "You move";
- sprintf(msg, "\n%s %s.", msg_content, dir);
- update_log (world, msg);
- free(msg); }
+ sprintf(msg, "\n%s %s.", msg_content, dir);
+ update_log (world, msg);
+ free(msg);
turn_over (world, d); }
void player_wait (struct World * world) {