#include "map_objects.h"
#include <stdlib.h> /* for malloc(), calloc(), free(), atoi() */
+#include <stdint.h> /* for uint8_t */
#include <stdio.h> /* for FILE typedef */
-#include <string.h> /* for strchr(), strlen(), memcpy() */
+#include <string.h> /* for strchr(), strlen(), memcpy(), strtok() */
#include "readwrite.h" /* for [read/write]_uint[8/16/23][_bigendian]() */
#include "misc.h" /* for textfile_sizes(), find_passable_pos() */
#include "main.h" /* for World struct */
+#include "rexit.h" /* for err_exit() */
/* Return pointer to newly allocated map object struct of size "size". If first
* in map object chain ("first" pointing to !0), point "start" to it.
+ *
+ * Returns NULL instead of MapObj pointer if malloc() failed.
*/
static struct MapObj * get_next_map_obj(void * start, char * first,
size_t size, struct MapObj * map_obj);
{
world->item_def = 0;
world->monster_def = 0;
+ char * err = "Trouble in init_map_object_defs() with fopen().";
FILE * file = fopen(filename, "r");
+ exit_err(NULL == file, world, err);
uint16_t linemax;
- textfile_sizes (file, &linemax, NULL);
+ err = "Trouble in init_map_object_defs() with textfile_sizes().";
+ exit_err(textfile_sizes(file, &linemax, NULL), world, err);
struct MapObjDef mod;
struct ItemDef id;
struct MonsterDef md;
struct ItemDef * * p_p_id = &world->item_def;
struct MonsterDef * * p_p_md = &world->monster_def;
+ err = "Trouble in init_map_object_defs() with malloc() or calloc().";
char * defline = malloc(linemax);
+ exit_err(NULL == defline, world, err);
char * line_p;
+ char * delim = " ";
while (fgets(defline, linemax, file))
{
mod.next = 0;
- mod.id = atoi(defline);
- line_p = strchr(defline, ' ') + 1;
- mod.m_or_i = * line_p;
- mod.mapchar = * (line_p + 2);
+ mod.id = atoi(strtok(defline, delim));
+ mod.m_or_i = * strtok(NULL, delim);
+ mod.mapchar = * strtok(NULL, delim);
if ('i' == mod.m_or_i)
{
- line_p = line_p + 5;
+ line_p = strtok(NULL, delim);
}
else
{
- md.hitpoints_start = atoi (line_p + 4);
- line_p = strchr (line_p + 4, ' ') + 1;
+ md.corpse_id = atoi(strtok(NULL, delim));
+ md.hitpoints_start = atoi(strtok(NULL, delim));
+ line_p = strtok(NULL, delim);
}
- mod.desc = calloc (strlen (line_p), sizeof(char));
- memcpy (mod.desc, line_p, strlen(line_p) - 1);
+ mod.desc = calloc(strlen(line_p), sizeof(char));
+ exit_err(NULL == mod.desc, world, err);
+ memcpy(mod.desc, line_p, strlen(line_p) - 1);
if ('i' == mod.m_or_i)
{
id.map_obj_def = mod;
* p_p_id = malloc(sizeof(struct ItemDef));
+ exit_err(NULL == p_p_id, world, err);
* * p_p_id = id;
p_p_id = (struct ItemDef * *) * p_p_id;
}
{
md.map_obj_def = mod;
* p_p_md = malloc(sizeof(struct MonsterDef));
+ exit_err(NULL == p_p_md, world, err);
* * p_p_md = md;
p_p_md = (struct MonsterDef * *) * p_p_md;
}
}
free(defline);
- fclose(file);
-};
+ err = "Trouble in init_map_object_defs() with fclose().";
+ exit_err(fclose(file), world, err);
+}
+
+
+
+extern void free_item_defs(struct ItemDef * id_start)
+{
+ if (0 != id_start->map_obj_def.next)
+ {
+ free_item_defs((struct ItemDef *) id_start->map_obj_def.next);
+ }
+ free(id_start->map_obj_def.desc);
+ free(id_start);
+}
+
+
+
+
+extern void free_monster_defs(struct MonsterDef * md_start)
+{
+ if (0 != md_start->map_obj_def.next)
+ {
+ free_monster_defs((struct MonsterDef *) md_start->map_obj_def.next);
+ }
+ free(md_start->map_obj_def.desc);
+ free(md_start);
+}
{
struct MapObj * map_obj;
struct MapObjDef * mod;
- uint8_t fail = 0;
for (map_obj = start; map_obj != 0; map_obj = map_obj->next)
{
- fail = fail | write_uint8(map_obj->type, file);
- fail = fail | write_uint16_bigendian(map_obj->pos.y + 1, file);
- fail = fail | write_uint16_bigendian(map_obj->pos.x + 1, file);
+ if ( write_uint8(map_obj->type, file)
+ || write_uint16_bigendian(map_obj->pos.y + 1, file)
+ || write_uint16_bigendian(map_obj->pos.x + 1, file))
+ {
+ return 1;
+ }
mod = get_map_obj_def(world, map_obj->type);
if ('m' == mod->m_or_i)
{
- fail = fail | write_map_objects_monsterdata(map_obj, file);
+ if (write_map_objects_monsterdata(map_obj, file))
+ {
+ return 1;
+ }
}
}
- return (fail | write_uint16_bigendian(0, file));
+ return write_uint16_bigendian(0, file);
}
char first = 1;
long pos;
uint16_t read_uint16 = 0;
- uint8_t fail = 0;
+ char * err = "Trouble in read_map_objects() with get_next_map_obj().";
while (1)
{
pos = ftell(file);
- fail = fail | read_uint16_bigendian(file, &read_uint16);
+ if (read_uint16_bigendian(file, &read_uint16))
+ {
+ return 1;
+ }
if (0 == read_uint16)
{
break;
}
fseek(file, pos, SEEK_SET);
- fail = fail | read_uint8(file, &type);
+ if (read_uint8(file, &type))
+ {
+ return 1;
+ }
mod = get_map_obj_def(world, type);
if ('m' == mod->m_or_i)
{
size = sizeof(struct Item);
}
map_obj = get_next_map_obj(start, &first, size, map_obj);
+ exit_err(NULL == map_obj, world, err);
map_obj->type = type;
- fail = fail | read_uint16_bigendian(file, &map_obj->pos.y);
- fail = fail | read_uint16_bigendian(file, &map_obj->pos.x);
+ if ( read_uint16_bigendian(file, &map_obj->pos.y)
+ || read_uint16_bigendian(file, &map_obj->pos.x))
+ {
+ return 1;
+ }
map_obj->pos.y--;
map_obj->pos.x--;
if ('m' == mod->m_or_i)
{
- fail = fail | read_map_objects_monsterdata(map_obj, file);
+ if (read_map_objects_monsterdata(map_obj, file))
+ {
+ return 1;
+ }
}
}
if (!first)
{
map_obj->next = 0;
}
- return fail;
+ return 0;
}
extern void * build_map_objects(struct World * world, void * start, char def_id,
- unsigned char n)
+ uint8_t n)
{
- unsigned char i;
+ uint8_t i;
struct MapObj * mo;
char first = 1;
struct MapObjDef * mod = get_map_obj_def(world, def_id);
size_t size = 0;
+ char * err = "Trouble in build_map_objects() with get_next_map_obj().";
if ('i' == mod->m_or_i)
{
size = sizeof(struct Item);
for (i = 0; i < n; i++)
{
mo = get_next_map_obj(start, &first, size, mo);
+ exit_err(NULL == mo, world, err);
mo->pos = find_passable_pos(world->map);
if ('i' == mod->m_or_i)
{
-extern struct MapObjDef * get_map_obj_def (struct World * world, char def_id)
+extern void free_items(struct Item * item)
+{
+ if (0 != item->map_obj.next)
+ {
+ free_items((struct Item *) item->map_obj.next);
+ }
+ free(item);
+}
+
+
+
+extern void free_monsters(struct Monster * monster)
+{
+ if (0 != monster->map_obj.next)
+ {
+ free_monsters((struct Monster *) monster->map_obj.next);
+ }
+ free(monster);
+}
+
+
+
+extern struct MapObjDef * get_map_obj_def(struct World * world, char def_id)
{
struct MapObjDef * d = NULL;
for (d = (struct MapObjDef *) world->monster_def;
projects / plomrogue / blobdiff