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
|
/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file newgrf_class_func.h Implementation of the NewGRF class' functions. */
#include "newgrf_class.h"
#include "table/strings.h"
#define DEFINE_NEWGRF_CLASS_METHOD(type) \
template <typename Tspec, typename Tid, Tid Tmax> \
type NewGRFClass<Tspec, Tid, Tmax>
/** Instantiate the array. */
template <typename Tspec, typename Tid, Tid Tmax>
NewGRFClass<Tspec, Tid, Tmax> NewGRFClass<Tspec, Tid, Tmax>::classes[Tmax];
/** Reset the classes, i.e. clear everything. */
DEFINE_NEWGRF_CLASS_METHOD(void)::Reset()
{
for (Tid i = (Tid)0; i < Tmax; i++) {
classes[i].global_id = 0;
classes[i].name = STR_EMPTY;
classes[i].count = 0;
free(classes[i].spec);
classes[i].spec = NULL;
}
InsertDefaults();
}
/**
* Allocate a class with a given global class ID.
* @param cls_id The global class id, such as 'DFLT'.
* @return The (non global!) class ID for the class.
* @note Upon allocating the same global class ID for a
* second time, this first allocation will be given.
*/
DEFINE_NEWGRF_CLASS_METHOD(Tid)::Allocate(uint32 global_id)
{
for (Tid i = (Tid)0; i < Tmax; i++) {
if (classes[i].global_id == global_id) {
/* ClassID is already allocated, so reuse it. */
return i;
} else if (classes[i].global_id == 0) {
/* This class is empty, so allocate it to the global id. */
classes[i].global_id = global_id;
return i;
}
}
grfmsg(2, "ClassAllocate: already allocated %d classes, using default", Tmax);
return (Tid)0;
}
/**
* Set the name of a particular class.
* @param cls_id The id for the class.
* @pre index < GetCount(cls_id)
* @param name The new name for the class.
*/
DEFINE_NEWGRF_CLASS_METHOD(void)::SetName(Tid cls_id, StringID name)
{
assert(cls_id < Tmax);
classes[cls_id].name = name;
}
/**
* Assign a spec to one of the classes.
* @param spec The spec to assign.
* @note The spec must have a valid class id set.
*/
DEFINE_NEWGRF_CLASS_METHOD(void)::Assign(Tspec *spec)
{
assert(spec->cls_id < Tmax);
NewGRFClass<Tspec, Tid, Tmax> *cls = &classes[spec->cls_id];
uint i = cls->count++;
cls->spec = ReallocT(cls->spec, cls->count);
cls->spec[i] = spec;
}
/**
* Get the name of a particular class.
* @param cls_id The class to get the name of.
* @pre index < GetCount(cls_id)
* @return The name of said class.
*/
DEFINE_NEWGRF_CLASS_METHOD(StringID)::GetName(Tid cls_id)
{
assert(cls_id < Tmax);
return classes[cls_id].name;
}
/**
* Get the number of allocated classes.
* @return The number of classes.
*/
DEFINE_NEWGRF_CLASS_METHOD(uint)::GetCount()
{
uint i;
for (i = 0; i < Tmax && classes[i].global_id != 0; i++) {}
return i;
}
/**
* Get the number of allocated specs within a particular class.
* @param cls_id The class to get the size of.
* @pre cls_id < GetCount()
* @return The size of the class.
*/
DEFINE_NEWGRF_CLASS_METHOD(uint)::GetCount(Tid cls_id)
{
assert(cls_id < Tmax);
return classes[cls_id].count;
}
/**
* Get a spec from a particular class at a given index.
* @param cls_id The class to get the spec from.
* @param index The index where to find the spec.
* @pre index < GetCount(cls_id)
* @return The spec at given location.
*/
DEFINE_NEWGRF_CLASS_METHOD(const Tspec *)::Get(Tid cls_id, uint index)
{
assert(cls_id < Tmax);
if (index < classes[cls_id].count) return classes[cls_id].spec[index];
/* If the custom spec isn't defined any more, then the GRF file probably was not loaded. */
return NULL;
}
/**
* Retrieve a spec by GRF location.
* @param grfid GRF ID of spec.
* @param local_id Index within GRF file of spec.
* @param index Pointer to return the index of the spec in its class. If NULL then not used.
* @return The spec.
*/
DEFINE_NEWGRF_CLASS_METHOD(const Tspec *)::GetByGrf(uint32 grfid, byte local_id, int *index)
{
uint j;
for (Tid i = (Tid)0; i < Tmax; i++) {
for (j = 0; j < classes[i].count; j++) {
const Tspec *spec = classes[i].spec[j];
if (spec == NULL) continue;
if (spec->grf_prop.grffile->grfid == grfid && spec->grf_prop.local_id == local_id) {
if (index != NULL) *index = j;
return spec;
}
}
}
return NULL;
}
#undef DEFINE_NEWGRF_CLASS_METHOD
/** Force instantiation of the methods so we don't get linker errors. */
#define INSTANTIATE_NEWGRF_CLASS_METHODS(name, Tspec, Tid, Tmax) \
template void name::Reset(); \
template Tid name::Allocate(uint32 global_id); \
template void name::SetName(Tid cls_id, StringID name); \
template void name::Assign(Tspec *spec); \
template StringID name::GetName(Tid cls_id); \
template uint name::GetCount(); \
template uint name::GetCount(Tid cls_id); \
template const Tspec *name::Get(Tid cls_id, uint index); \
template const Tspec *name::GetByGrf(uint32 grfid, byte localidx, int *index);
|
