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authorglx <glx@openttd.org>2007-06-18 23:00:55 +0000
committerglx <glx@openttd.org>2007-06-18 23:00:55 +0000
commit623a848cca99d7686f4e594fea4573d5bb40ed32 (patch)
treef4318f970123dab2462d27992cd283f78f4d5885 /src/newgrf_townname.cpp
parent8220153e6bfab15670c5977f6bbc56cf9a2c8a7e (diff)
downloadopenttd-623a848cca99d7686f4e594fea4573d5bb40ed32.tar.xz
(svn r10211) -Feature: [NewGRF] Add support for action 0F
Diffstat (limited to 'src/newgrf_townname.cpp')
-rw-r--r--src/newgrf_townname.cpp132
1 files changed, 132 insertions, 0 deletions
diff --git a/src/newgrf_townname.cpp b/src/newgrf_townname.cpp
new file mode 100644
index 000000000..321635d81
--- /dev/null
+++ b/src/newgrf_townname.cpp
@@ -0,0 +1,132 @@
+/* $Id$ */
+
+/** @file newgrf_townname.cpp
+ * Implementation of Action 0F "universal holder" structure and functions.
+ * This file implements a linked-lists of townname generators,
+ * holding everything that the newgrf action 0F will send over to OpenTTD.
+ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "table/strings.h"
+#include "newgrf_townname.h"
+#include "string.h"
+
+static GRFTownName *_grf_townnames = NULL;
+
+GRFTownName *GetGRFTownName(uint32 grfid)
+{
+ GRFTownName *t = _grf_townnames;
+ for (; t != NULL; t = t->next) {
+ if (t->grfid == grfid) return t;
+ }
+ return NULL;
+}
+
+GRFTownName *AddGRFTownName(uint32 grfid)
+{
+ GRFTownName *t = GetGRFTownName(grfid);
+ if (t == NULL) {
+ t = CallocT<GRFTownName>(1);
+ t->grfid = grfid;
+ t->next = _grf_townnames;
+ _grf_townnames = t;
+ }
+ return t;
+}
+
+void DelGRFTownName(uint32 grfid)
+{
+ GRFTownName *t = _grf_townnames;
+ GRFTownName *p = NULL;
+ for (;t != NULL; p = t, t = t->next) if (t->grfid == grfid) break;
+ if (t != NULL) {
+ for (int i = 0; i < 128; i++) {
+ for (int j = 0; j < t->nbparts[i]; j++) {
+ for (int k = 0; k < t->partlist[i][j].partcount; k++) {
+ if (!HASBIT(t->partlist[i][j].parts[k].prob, 7)) free(t->partlist[i][j].parts[k].data.text);
+ }
+ free(t->partlist[i][j].parts);
+ }
+ free(t->partlist[i]);
+ }
+ if (p != NULL) {
+ p->next = t->next;
+ } else {
+ _grf_townnames = t->next;
+ }
+ free(t);
+ }
+}
+
+static char *RandomPart(char *buf, GRFTownName *t, uint32 seed, byte id, const char *last)
+{
+ assert(t != NULL);
+ for (int i = 0; i < t->nbparts[id]; i++) {
+ byte count = t->partlist[id][i].bitcount;
+ uint16 maxprob = t->partlist[id][i].maxprob;
+ uint32 r = (GB(seed, t->partlist[id][i].bitstart, count) * maxprob) >> count;
+ for (int j = 0; j < t->partlist[id][i].partcount; j++) {
+ byte prob = t->partlist[id][i].parts[j].prob;
+ maxprob -= GB(prob, 0, 7);
+ if (maxprob > r) continue;
+ if (HASBIT(prob, 7)) {
+ buf = RandomPart(buf, t, seed, t->partlist[id][i].parts[j].data.id, last);
+ } else {
+ buf = strecat(buf, t->partlist[id][i].parts[j].data.text, last);
+ }
+ break;
+ }
+ }
+ return buf;
+}
+
+char *GRFTownNameGenerate(char *buf, uint32 grfid, uint16 gen, uint32 seed, const char *last)
+{
+ strecpy(buf, "", last);
+ for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
+ if (t->grfid == grfid) {
+ assert(gen < t->nb_gen);
+ buf = RandomPart(buf, t, seed, t->id[gen], last);
+ break;
+ }
+ }
+ return buf;
+}
+
+StringID *GetGRFTownNameList()
+{
+ int nb_names = 0, n = 0;
+ for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) nb_names += t->nb_gen;
+ StringID *list = MallocT<StringID>(nb_names + 1);
+ for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
+ for (int j = 0; j < t->nb_gen; j++) list[n++] = t->name[j];
+ }
+ list[n] = INVALID_STRING_ID;
+ return list;
+}
+
+void CleanUpGRFTownNames()
+{
+ while (_grf_townnames != NULL) DelGRFTownName(_grf_townnames->grfid);
+}
+
+uint32 GetGRFTownNameId(int gen)
+{
+ for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
+ if (gen < t->nb_gen) return t->grfid;
+ gen -= t->nb_gen;
+ }
+ /* Fallback to no NewGRF */
+ return 0;
+}
+
+uint16 GetGRFTownNameType(int gen)
+{
+ for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
+ if (gen < t->nb_gen) return gen;
+ gen -= t->nb_gen;
+ }
+ /* Fallback to english original */
+ return SPECSTR_TOWNNAME_ENGLISH;
+}