--- /dev/null
+/* src/server/map_objects.c */
+
+#include "map_objects.h"
+#include <stdio.h> /* FILE typedef */
+#include <stdint.h> /* uint8_t, uint16_t */
+#include <stdlib.h> /* free(), atoi() */
+#include <string.h> /* strlen(), memcpy(), strtok() */
+#include "../common/readwrite.h" /* try_fopen(), try_fclose(), try_fgets(),
+ * textfile_sizes()
+ */
+#include "../common/try_malloc.h" /* try_malloc() */
+#include "../common/yx_uint16.h" /* yx_uint16 struct */
+#include "cleanup.h" /* set_cleanup_flag() */
+#include "map.h" /* is_passable() */
+#include "rrand.h" /* rrand() */
+#include "world.h" /* global world */
+#include "yx_uint16.h" /* yx_uint16_cmp() */
+
+
+
+/* Return pointer to map object of "id" in chain starting at "ptr". */
+static struct MapObj * get_map_object(struct MapObj * ptr, uint8_t id);
+
+/* Return random passable (as by is_passable()) position on world.map. */
+static struct yx_uint16 find_passable_pos();
+
+/* Add object of "type" to map on random position. Don't place actor on actor.*/
+static void add_map_object(uint8_t type);
+
+
+
+static struct MapObj * get_map_object(struct MapObj * ptr, uint8_t id)
+{
+ while (1)
+ {
+ if (NULL == ptr || id == ptr->id)
+ {
+ return ptr;
+ }
+ struct MapObj * owned_object = get_map_object(ptr->owns, id);
+ if (NULL != owned_object)
+ {
+ return ptr;
+ }
+ ptr = ptr->next;
+ }
+}
+
+
+
+static struct yx_uint16 find_passable_pos() // struct Map * map)
+{
+ struct yx_uint16 pos;
+ for (pos.y = pos.x = 0; 0 == is_passable(pos);)
+ {
+ pos.y = rrand() % world.map.size.y;
+ pos.x = rrand() % world.map.size.x;
+ }
+ return pos;
+}
+
+
+
+static void add_map_object(uint8_t type)
+{
+ char * f_name = "add_map_object()";
+ struct MapObjDef * mod = get_map_object_def(type);
+ struct MapObj * mo = try_malloc(sizeof(struct MapObj), f_name);
+ mo->id = world.map_obj_count++;
+ mo->type = mod->id;
+ mo->lifepoints = mod->lifepoints;
+ while (1)
+ {
+ struct yx_uint16 pos = find_passable_pos(world.map);
+ struct MapObj * mo_ptr;
+ uint8_t clear = 1;
+ for (mo_ptr = world.map_objs; mo_ptr != NULL; mo_ptr = mo_ptr->next)
+ {
+ if (yx_uint16_cmp(&pos, &mo_ptr->pos) && 0 != mo_ptr->lifepoints)
+ {
+ clear = 0;
+ break;
+ }
+ }
+ if (1 == clear)
+ {
+ mo->pos = pos;
+ break;
+ }
+ }
+ mo->progress = 0;
+ mo->command = 0;
+ mo->arg = 0;
+ mo->owns = NULL;
+ mo->next = NULL;
+ struct MapObj ** mo_ptr_ptr = &world.map_objs;
+ for (; NULL != * mo_ptr_ptr; mo_ptr_ptr = &(*mo_ptr_ptr)->next);
+ * mo_ptr_ptr = mo;
+}
+
+
+
+extern void init_map_object_defs(char * filename)
+{
+ char * f_name = "init_map_object_defs()";
+ FILE * file = try_fopen(filename, "r", f_name);
+ uint16_t linemax = textfile_sizes(file, NULL);
+ struct MapObjDef ** last_mod_ptr_ptr = &world.map_obj_defs;
+ char * delim = " ";
+ char line[linemax + 1];
+ while (try_fgets(line, linemax + 1, file, f_name))
+ {
+ struct MapObjDef * mod = try_malloc(sizeof(struct MapObjDef), f_name);
+ mod->next = NULL;
+ mod->id = atoi(strtok(line, delim));
+ mod->corpse_id = atoi(strtok(NULL, delim));
+ mod->char_on_map = * strtok(NULL, delim);
+ mod->lifepoints = atoi(strtok(NULL, delim));
+ char * name = strtok(NULL, "\n");
+ mod->name = try_malloc(strlen(name) + 1, f_name);
+ memcpy(mod->name, name, strlen(name) + 1);
+ * last_mod_ptr_ptr = mod;
+ last_mod_ptr_ptr = &mod->next;
+ }
+ try_fclose(file, f_name);
+ set_cleanup_flag(CLEANUP_MAP_OBJECT_DEFS);
+}
+
+
+
+extern void free_map_object_defs(struct MapObjDef * mod_start)
+{
+ if (NULL == mod_start)
+ {
+ return;
+ }
+ free_map_object_defs(mod_start->next);
+ free(mod_start->name);
+ free(mod_start);
+ mod_start = NULL;
+}
+
+
+
+extern void add_map_objects(uint8_t type, uint8_t n)
+{
+ uint8_t i;
+ for (i = 0; i < n; i++)
+ {
+ add_map_object(type);
+ }
+}
+
+
+
+extern void free_map_objects(struct MapObj * mo_start)
+{
+ if (NULL == mo_start)
+ {
+ return;
+ }
+ free_map_objects(mo_start->owns);
+ free_map_objects(mo_start->next);
+ free(mo_start);
+ if (mo_start == world.map_objs)
+ {
+ world.map_objs = NULL;
+ }
+}
+
+
+
+extern void own_map_object(struct MapObj ** target, struct MapObj ** source,
+ uint8_t id)
+{
+ struct MapObj * mo;
+ if (id == (*source)->id)
+ {
+ mo = * source;
+ * source = mo->next;
+ }
+ else
+ {
+ struct MapObj * penult = * source;
+ while (1)
+ {
+ if (id == penult->next->id)
+ {
+ break;
+ }
+ penult = penult->next;
+ }
+ mo = penult->next;
+ penult->next = mo->next;
+ }
+ struct MapObj ** mo_ptr_ptr = target;
+ for (; NULL != * mo_ptr_ptr; mo_ptr_ptr = &(*mo_ptr_ptr)->next);
+ * mo_ptr_ptr = mo;
+ mo->next = NULL;
+}
+
+
+
+extern struct MapObj * get_player()
+{
+ return get_map_object(world.map_objs, 0);
+}
+
+
+
+extern struct MapObjDef * get_map_object_def(uint8_t id)
+{
+ struct MapObjDef * mod = world.map_obj_defs;
+ for (; id != mod->id; mod = mod->next);
+ return mod;
+}
+
+
+
+extern void set_object_position(struct MapObj * mo, struct yx_uint16 pos)
+{
+ mo->pos = pos;
+ struct MapObj * owned = mo->owns;
+ for (; owned != NULL; set_object_position(owned, pos), owned = owned->next);
+}
projects / plomrogue / blobdiff