-/* src/server/things.c */
+/* src/server/things.c
+ *
+ * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
+ * or any later version. For details on its copyright, license, and warranties,
+ * see the file NOTICE in the root directory of the PlomRogue source package.
+ */
#define _POSIX_C_SOURCE 200809L /* strdup() */
#include "things.h"
#include <stddef.h> /* NULL, size_t */
#include <stdint.h> /* uint8_t, uint16_t, int16_t, UINT8_MAX, UINT16_MAX */
#include <stdlib.h> /* free() */
-#include <string.h> /* memset(), strcmp(), strdup() */
+#include <string.h> /* memset(), strcmp(), strdup(), strlen() */
#include "../common/rexit.h" /* exit_err() */
#include "../common/try_malloc.h" /* try_malloc() */
#include "../common/yx_uint8.h" /* yx_uint8 */
#include "cleanup.h" /* set_cleanup_flag() */
#include "hardcoded_strings.h" /* s */
-#include "map.h" /* is_passable() */
+#include "field_of_view.h" /* build_fov_map() */
+#include "map.h" /* mv_yx_in_dir_legal() */
#include "rrand.h" /* rrand() */
#include "thing_actions.h" /* actor_wait */
#include "world.h" /* world */
-#include "yx_uint8.h" /* yx_uint8_cmp() */
-/* Free ThingsInMemory chain starting at "tm". */
-static void free_things_in_memory(struct ThingInMemory * tm);
-
/* To linked list of NextAndId structs (or rather structs whose start region is
* compatible to it) starting at "start", add newly allocated element of
* "n_size" and an ID that is either "id" or, if "id" is <= UINT8_MAX and >=
int16_t id, uint8_t struct_id,
struct NextAndId ** start);
-
-
-static void free_things_in_memory(struct ThingInMemory * tm)
-{
- if (NULL == tm)
- {
- return;
- }
- free_things_in_memory(tm->next);
- free(tm);
-}
-
+/* Return 1 if cell at "test_pos" is proliferable by "t", i.e. it is passable,
+ * it is not inhabited by another thing of "t"'s type, and, if "t" is animate,
+ * neither by any other animate thing; else return 0.
+ */
+static uint8_t cell_is_proliferable(struct yx_uint8 test_pos, struct Thing * t);
static struct NextAndId * add_to_struct_list(size_t n_size, uint8_t start_id,
}
}
struct NextAndId ** nai_ptr_ptr = start;
- for (; NULL != * nai_ptr_ptr; nai_ptr_ptr = &(*nai_ptr_ptr)->next);
+ for (; * nai_ptr_ptr; nai_ptr_ptr = &(*nai_ptr_ptr)->next);
*nai_ptr_ptr = nai;
return nai;
}
+static uint8_t cell_is_proliferable(struct yx_uint8 test_pos, struct Thing * t)
+{
+ if ('.' == world.map.cells[test_pos.y * world.map.length + test_pos.x])
+ {
+ struct Thing * t_test;
+ for (t_test = world.things; t_test; t_test = t_test->next)
+ {
+ if (t_test->pos.y == test_pos.y && t_test->pos.x == test_pos.x)
+ {
+ if (t_test->type == t->type)
+ {
+ return 0;
+ }
+ if (t_test->lifepoints && t->lifepoints)
+ {
+ return 0;
+ }
+ }
+ }
+ return 1;
+ }
+ return 0;
+}
+
+
+
extern struct ThingAction * add_thing_action(uint8_t id)
{
struct ThingAction * ta;
t->lifepoints = tt->lifepoints;
t->pos.y = y;
t->pos.x = x;
+ if (t->lifepoints && world.exists)
+ {
+ build_fov_map(t);
+ }
return t;
}
extern void free_thing_actions(struct ThingAction * ta)
{
- if (NULL == ta)
+ if (!ta)
{
return;
}
extern void free_thing_types(struct ThingType * tt)
{
- if (NULL == tt)
+ if (!tt)
{
return;
}
extern void free_things(struct Thing * t)
{
- if (NULL == t)
+ if (!t)
{
return;
}
free_things(t->next);
free(t->fov_map);
free(t->mem_map);
+ free(t->mem_depth_map);
free_things_in_memory(t->t_mem);
free(t);
if (t == world.things) /* So add_things()' NULL-delimited thing */
+extern void free_things_in_memory(struct ThingInMemory * tm)
+{
+ if (!tm)
+ {
+ return;
+ }
+ free_things_in_memory(tm->next);
+ free(tm);
+}
+
+
+
extern struct ThingAction * get_thing_action(uint8_t id)
{
struct ThingAction * ta = world.thing_actions;
- for (; NULL != ta && id != ta->id; ta = ta->next);
+ for (; ta && id != ta->id; ta = ta->next);
return ta;
}
extern struct ThingType * get_thing_type(uint8_t id)
{
struct ThingType * tt = world.thing_types;
- for (; NULL != tt && id != tt->id; tt = tt->next);
+ for (; tt && id != tt->id; tt = tt->next);
return tt;
}
extern uint8_t get_thing_action_id_by_name(char * name)
{
struct ThingAction * ta = world.thing_actions;
- while (NULL != ta)
+ while (ta)
{
if (0 == strcmp(ta->name, name))
{
{
while (1)
{
- if (NULL == ptr || id == ptr->id)
+ if (!ptr || id == ptr->id)
{
return ptr;
}
if (deep)
{
struct Thing * owned_thing = get_thing(ptr->owns, id, 1);
- if (NULL != owned_thing)
+ if (owned_thing)
{
return ptr;
}
+extern void try_thing_proliferation(struct Thing * t)
+{
+ struct ThingType * tt = get_thing_type(t->type);
+ if (tt->proliferate)
+ {
+ if (1 == tt->proliferate || 1 == (rrand() % tt->proliferate))
+ {
+ struct yx_uint8 candidates[6];
+ uint8_t n_candidates = 0;
+ char dirs[7] = "dxswed";
+ struct yx_uint8 test = t->pos;
+ uint8_t i;
+ for (i = 0; i < strlen(dirs); i++)
+ {
+ if ( mv_yx_in_dir_legal(dirs[i], &test)
+ && cell_is_proliferable(test, t))
+ {
+ candidates[n_candidates] = test;
+ n_candidates++;
+ }
+ }
+ if (!n_candidates)
+ {
+ return;
+ }
+ i = rrand() % n_candidates;
+ add_thing(-1, tt->id, candidates[i].y, candidates[i].x);
+ }
+ }
+}
+
+
+
extern void add_things(uint8_t type, uint8_t n)
{
uint8_t i;
struct yx_uint8 pos;
while (1)
{
- char * err = "Space to put thing on too hard to find."
- "Map too small?";
+ char * err="Space to put thing on too hard to find. Map too small?";
uint16_t i_pos = 0;
- for (pos.y = pos.x = 0; 0 == is_passable(pos); i_pos++)
+ for (pos.y = pos.x = 0;
+ '.' != world.map.cells[pos.y * world.map.length + pos.x];
+ i_pos++)
{
exit_err(UINT16_MAX == i_pos, err);
pos.y = rrand() % world.map.length;
uint8_t clear = 1;
for (t = world.things; t; t = t->next)
{
- if (yx_uint8_cmp(&pos, &t->pos) && 0 != t->lifepoints)
+ if (0 != t->lifepoints && pos.y==t->pos.y && pos.x==t->pos.x)
{
clear = 0;
break;
penult->next = t->next;
}
struct Thing ** t_ptr_ptr = target;
- for (; NULL != * t_ptr_ptr; t_ptr_ptr = &(*t_ptr_ptr)->next);
+ for (; * t_ptr_ptr; t_ptr_ptr = &(*t_ptr_ptr)->next);
* t_ptr_ptr = t;
t->next = NULL;
}
{
t->pos = pos;
struct Thing * owned = t->owns;
- for (; owned != NULL; set_thing_position(owned, pos), owned = owned->next);
+ for (; owned; set_thing_position(owned, pos), owned = owned->next);
}
projects / plomrogue / blobdiff