/* map_objects.c */
#include "map_objects.h"
-#include <stdlib.h> /* for malloc(), calloc(), free(), atoi() */
+#include <stdlib.h> /* for free(), atoi() */
+#include <stdint.h> /* for uint8_t */
#include <stdio.h> /* for FILE typedef */
-#include <string.h> /* for strchr(), strlen(), memcpy() */
-#include "readwrite.h" /* for all the map object (def) loading/saving */
-#include "misc.h" /* for textfile_sizes(), find_passable_pos() */
+#include <string.h> /* for strchr(), strlen(), memcpy(), strtok() */
+#include "readwrite.h" /* for get_linemax(), try_fopen(), try_fclose()
+ * [read/write]_uint[8/16/23][_bigendian]()
+ */
+#include "misc.h" /* for try_malloc(), try_calloc(), 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.
*/
-static struct MapObj * get_next_map_obj(void * start, char * first,
+static struct MapObj * get_next_map_obj(struct World * world,
+ void * start, char * first,
size_t size, struct MapObj * map_obj);
-static struct MapObj * get_next_map_obj(void * start, char * first,
+/* Map-object-type-specific helpers to (build|write|read)_map_objects(). */
+static void build_map_objects_itemdata(struct MapObjDef * map_obj_def,
+ void * start);
+static void build_map_objects_monsterdata(struct MapObjDef * map_obj_def,
+ void * start);
+static uint8_t write_map_objects_monsterdata(void * start, FILE * file);
+static uint8_t read_map_objects_monsterdata( void * start, FILE * file);
+
+
+
+static struct MapObj * get_next_map_obj(struct World * world,
+ void * start, char * first,
size_t size, struct MapObj * map_obj)
{
+ char * f_name = "get_next_map_obj()";
if (* first)
{
struct MapObj * * z = start;
- map_obj = malloc(size);
+ map_obj = try_malloc(size, world, f_name);
* z = map_obj;
* first = 0;
}
else
{
- map_obj->next = malloc(size);
+ map_obj->next = try_malloc(size, world, f_name);
map_obj = map_obj->next;
}
return map_obj;
+static void build_map_objects_itemdata(struct MapObjDef * map_obj_def,
+ void * start)
+{
+ struct Item * i = (struct Item *) start;
+ i->map_obj.type = map_obj_def->id;
+}
+
+
+
+static void build_map_objects_monsterdata(struct MapObjDef * map_obj_def,
+ void * start)
+{
+ struct Monster * m = (struct Monster *) start;
+ m->map_obj.type = map_obj_def->id;
+ struct MonsterDef * md = (struct MonsterDef *) map_obj_def;
+ m->hitpoints = md->hitpoints_start;
+}
+
+
+
+static uint8_t write_map_objects_monsterdata(void * start, FILE * file)
+{
+ struct Monster * m = (struct Monster *) start;
+ return write_uint8(m->hitpoints, file);
+}
+
+
+
+static uint8_t read_map_objects_monsterdata (void * start, FILE * file)
+{
+ struct Monster * m = (struct Monster *) start;
+ return read_uint8(file, &m->hitpoints);
+}
+
+
+
extern void init_map_object_defs(struct World * world, char * filename)
{
- world->item_def = 0;
+ char * f_name = "init_map_object_defs()";
+ FILE * file = try_fopen(filename, "r", world, f_name);
+ uint16_t linemax = get_linemax(file, world, f_name);
+ struct MapObjDef mod;
+ struct ItemDef id;
+ struct MonsterDef md;
+ world->item_def = 0;
world->monster_def = 0;
- FILE * file = fopen(filename, "r");
- uint16_t linemax;
- textfile_sizes (file, &linemax, NULL);
- 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;
- char * defline = malloc(linemax);
- char * line_p;
- char m_or_i;
- while (fgets(defline, linemax, file))
+ char defline[linemax + 1];
+ char * line_p;
+ char * delim = " ";
+ while (fgets(defline, linemax + 1, file))
{
mod.next = 0;
- mod.id = atoi(defline);
- line_p = strchr(defline, ' ') + 1;
- m_or_i = * line_p;
- mod.mapchar = * (line_p + 2);
- if ('i' == m_or_i)
+ 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);
- if ('i' == m_or_i)
+ mod.desc = try_calloc(strlen(line_p), sizeof(char), world, f_name);
+ 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));
+ * p_p_id = try_malloc(sizeof(struct ItemDef), world, f_name);
* * p_p_id = id;
p_p_id = (struct ItemDef * *) * p_p_id;
}
else
{
md.map_obj_def = mod;
- * p_p_md = malloc(sizeof(struct MonsterDef));
+ * p_p_md = try_malloc(sizeof(struct MonsterDef), world, f_name);
* * p_p_md = md;
p_p_md = (struct MonsterDef * *) * p_p_md;
}
}
- free(defline);
- fclose(file);
-};
+ try_fclose(file, world, f_name);
+}
+
+
+
+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 write_map_objects(void * start, FILE * file,
- void (* w_typedata) (void *, FILE *) )
+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);
+}
+
+
+
+extern uint8_t write_map_objects(struct World * world, void * start,
+ FILE * file)
{
struct MapObj * map_obj;
+ struct MapObjDef * mod;
for (map_obj = start; map_obj != 0; map_obj = map_obj->next)
{
- write_uint16_bigendian(map_obj->pos.y + 1, file);
- write_uint16_bigendian(map_obj->pos.x + 1, file);
- fputc(map_obj->type, file);
- if (w_typedata)
+ 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)
{
- w_typedata (map_obj, file);
+ if (write_map_objects_monsterdata(map_obj, file))
+ {
+ return 1;
+ }
}
}
- write_uint16_bigendian(0, file);
+ return write_uint16_bigendian(0, file);
}
-extern void read_map_objects(void * start, FILE * file, size_t size,
- void (* r_typedata) (void *, FILE *) )
+extern uint8_t read_map_objects(struct World * world, void * start, FILE * file)
{
+ char * err = "Trouble in read_map_objects() with get_next_map_obj().";
struct MapObj * map_obj;
- uint16_t test;
+ struct MapObjDef * mod;
+ size_t size;
+ uint8_t type;
char first = 1;
+ long pos;
+ uint16_t read_uint16 = 0;
while (1)
{
- test = read_uint16_bigendian(file);
- if (0 == test)
+ pos = ftell(file);
+ if (read_uint16_bigendian(file, &read_uint16))
+ {
+ return 1;
+ }
+ if (0 == read_uint16)
{
break;
}
- map_obj = get_next_map_obj(start, &first, size, map_obj);
- map_obj->pos.y = test - 1;
- map_obj->pos.x = read_uint16_bigendian(file) - 1;
- map_obj->type = fgetc(file);
- if (r_typedata)
+ fseek(file, pos, SEEK_SET);
+ if (read_uint8(file, &type))
+ {
+ return 1;
+ }
+ mod = get_map_obj_def(world, type);
+ if ('m' == mod->m_or_i)
+ {
+ size = sizeof(struct Monster);
+ }
+ else
+ {
+ size = sizeof(struct Item);
+ }
+ map_obj = get_next_map_obj(world, start, &first, size, map_obj);
+ exit_err(NULL == map_obj, world, err);
+ map_obj->type = type;
+ if ( read_uint16_bigendian(file, &map_obj->pos.y)
+ || read_uint16_bigendian(file, &map_obj->pos.x))
{
- r_typedata(map_obj, file);
+ return 1;
+ }
+ map_obj->pos.y--;
+ map_obj->pos.x--;
+ if ('m' == mod->m_or_i)
+ {
+ if (read_map_objects_monsterdata(map_obj, file))
+ {
+ return 1;
+ }
}
}
if (!first)
{
map_obj->next = 0;
}
-}
-
-
-
-extern void write_map_objects_monsterdata(void * start, FILE * file)
-{
- struct Monster * m = (struct Monster *) start;
- fputc(m->hitpoints, file);
-}
-
-
-
-extern void read_map_objects_monsterdata (void * start, FILE * file)
-{
- struct Monster * m = (struct Monster *) start;
- m->hitpoints = fgetc(file);
+ return 0;
}
extern void * build_map_objects(struct World * world, void * start, char def_id,
- unsigned char n, size_t size,
- void (* b_typedata) (struct MapObjDef *,
- void *))
+ uint8_t n)
{
- unsigned char i;
+ char * err = "Trouble in build_map_objects() with get_next_map_obj().";
+ uint8_t i;
struct MapObj * mo;
char first = 1;
struct MapObjDef * mod = get_map_obj_def(world, def_id);
+ size_t size = 0;
+ if ('i' == mod->m_or_i)
+ {
+ size = sizeof(struct Item);
+ }
+ else
+ {
+ size = sizeof(struct Monster);
+ }
for (i = 0; i < n; i++)
{
- mo = get_next_map_obj(start, &first, size, mo);
+ mo = get_next_map_obj(world, start, &first, size, mo);
+ exit_err(NULL == mo, world, err);
mo->pos = find_passable_pos(world->map);
- b_typedata(mod, mo);
+ if ('i' == mod->m_or_i)
+ {
+ build_map_objects_itemdata(mod, mo);
+ }
+ else
+ {
+ build_map_objects_monsterdata(mod, mo);
+ }
+
}
if (!first)
{
-extern void build_map_objects_itemdata(struct MapObjDef * map_obj_def,
- void * start)
+extern void free_items(struct Item * item)
{
- struct Item * i = (struct Item *) start;
- i->map_obj.type = map_obj_def->id;
+ if (0 == item)
+ {
+ return;
+ }
+ free_items((struct Item *) item->map_obj.next);
+ free(item);
}
-extern void build_map_objects_monsterdata(struct MapObjDef * map_obj_def,
- void * start)
+extern void free_monsters(struct Monster * monster)
{
- struct Monster * m = (struct Monster *) start;
- m->map_obj.type = map_obj_def->id;
- struct MonsterDef * md = (struct MonsterDef *) map_obj_def;
- m->hitpoints = md->hitpoints_start;
+ if (0 == monster)
+ {
+ return;
+ }
+ free_monsters((struct Monster *) monster->map_obj.next);
+ free(monster);
}
-extern struct MapObjDef * get_map_obj_def (struct World * world, char def_id)
+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