1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
#include <game.h>
class RandomTileData {
public:
enum Type {
CHECK_NONE = 0,
CHECK_HORZ = 1,
CHECK_VERT = 2,
CHECK_BOTH = 3
};
enum Special {
SP_NONE = 0,
SP_VDOUBLE_TOP = 1,
SP_VDOUBLE_BOTTOM = 2
};
class NameList {
public:
u32 count;
u32 offsets[1]; // variable size
const char *getName(int index) {
return ((char*)this) + offsets[index];
}
bool contains(const char *name) {
for (int i = 0; i < count; i++) {
if (strcmp(name, getName(i)) == 0)
return true;
}
return false;
}
};
class Entry {
public:
u8 lowerBound, upperBound;
u8 count, type;
u32 tileNumOffset;
u8 *getTileNums() {
return ((u8*)this) + tileNumOffset;
}
};
class Section {
public:
u32 nameListOffset;
u32 entryCount;
Entry entries[1]; // variable size
NameList *getNameList() {
return (NameList*)(((u32)this) + nameListOffset);
}
};
u32 magic;
u32 sectionCount;
u32 offsets[1]; // variable size
Section *getSection(int id) {
return (Section*)(((char*)this) + offsets[id]);
}
Section *getSection(const char *name);
static RandomTileData *instance;
};
class RTilemapClass : public TilemapClass {
public:
// NEWER ADDITIONS
RandomTileData::Section *sections[4];
};
RandomTileData::Section *RandomTileData::getSection(const char *name) {
for (int i = 0; i < sectionCount; i++) {
RandomTileData::Section *sect = getSection(i);
if (sect->getNameList()->contains(name))
return sect;
}
return 0;
}
// Real tile handling code
RandomTileData *RandomTileData::instance = 0;
dDvdLoader_c RandTileLoader;
// This is a bit hacky but I'm lazy
bool LoadLevelInfo();
extern "C" bool RandTileLoadHook() {
// OSReport("Trying to load...");
void *buf = RandTileLoader.load("/NewerRes/RandTiles.bin");
bool LIresult = LoadLevelInfo();
if (buf == 0) {
// OSReport("Failed.\n");
return false;
} else {
// OSReport("Successfully loaded RandTiles.bin [%p].\n", buf);
RandomTileData::instance = (RandomTileData*)buf;
return LIresult;
}
}
extern "C" void IdentifyTilesets(RTilemapClass *self) {
self->_C0C = 0xFFFFFFFF;
for (int i = 0; i < 4; i++) {
const char *tilesetName = BGDatClass::instance->getTilesetName(self->areaID, i);
self->sections[i] = RandomTileData::instance->getSection(tilesetName);
// OSReport("[%d] Chose %p for %s\n", i, self->sections[i], tilesetName);
}
}
extern "C" void TryAndRandomise(RTilemapClass *self, BGRender *bgr) {
int fullTile = bgr->tileToPlace & 0x3FF;
int tile = fullTile & 0xFF;
int tileset = fullTile >> 8;
RandomTileData::Section *rtSect = self->sections[tileset];
if (rtSect == 0)
return;
for (int i = 0; i < rtSect->entryCount; i++) {
RandomTileData::Entry *entry = &rtSect->entries[i];
if (tile >= entry->lowerBound && tile <= entry->upperBound) {
// Found it!!
// Try to make one until we meet the conditions
u8 type = entry->type & 3;
u8 special = entry->type >> 2;
u8 *tileNums = entry->getTileNums();
u16 chosen = 0xFF;
// If it's the top special, then ignore this tile, we'll place that one
// once we choose the bottom one
if (special == RandomTileData::SP_VDOUBLE_TOP)
break;
u16 *top = 0, *left = 0, *right = 0, *bottom = 0;
if (type == RandomTileData::CHECK_HORZ || type == RandomTileData::CHECK_BOTH) {
left = self->getPointerToTile((bgr->curX - 1) * 16, bgr->curY * 16);
right = self->getPointerToTile((bgr->curX + 1) * 16, bgr->curY * 16);
}
if (type == RandomTileData::CHECK_VERT || type == RandomTileData::CHECK_BOTH) {
top = self->getPointerToTile(bgr->curX * 16, (bgr->curY - 1) * 16);
bottom = self->getPointerToTile(bgr->curX * 16, (bgr->curY + 1) * 16);
}
int attempts = 0;
while (true) {
// is there even a point to using that special random function?
chosen = (tileset << 8) | tileNums[MakeRandomNumberForTiles(entry->count)];
// avoid infinite loops
attempts++;
if (attempts > 5)
break;
if (top != 0 && *top == chosen)
continue;
if (bottom != 0 && *bottom == chosen)
continue;
if (left != 0 && *left == chosen)
continue;
if (right != 0 && *right == chosen)
continue;
break;
}
bgr->tileToPlace = chosen;
if (special == RandomTileData::SP_VDOUBLE_BOTTOM) {
if (top == 0)
top = self->getPointerToTile(bgr->curX * 16, (bgr->curY - 1) * 16);
*top = (chosen - 0x10);
}
return;
}
}
}
|
