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
198
199
200
201
202
203
204
205
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef DIRECTOR_LINGO_LINGO_H
#define DIRECTOR_LINGO_LINGO_H
#include "common/debug.h"
#include "common/hashmap.h"
#include "common/hash-str.h"
#include "audio/audiostream.h"
#include "common/str.h"
#include "engines/director/director.h"
#include "engines/director/score.h"
namespace Director {
enum LEvent {
kEventPrepareMovie,
kEventStartMovie,
kEventStopMovie,
kEventNew,
kEventBeginSprite,
kEventEndSprite,
kEventNone,
kEventEnterFrame,
kEventPrepareFrame,
kEventIdle,
kEventStepFrame,
kEventExitFrame,
kEventActivateWindow,
kEventDeactivateWindow,
kEventMoveWindow,
kEventResizeWindow,
kEventOpenWindow,
kEventCloseWindow,
kEventKeyUp,
kEventKeyDown,
kEventMouseUp,
kEventMouseDown,
kEventRightMouseUp,
kEventRightMouseDown,
kEventMouseEnter,
kEventMouseLeave,
kEventMouseUpOutSide,
kEventMouseWithin,
kEventStart
};
typedef void (*inst)(void);
#define STOP (inst)0
typedef Common::Array<inst> ScriptData;
typedef struct Symbol { /* symbol table entry */
char *name;
long type;
union {
int val; /* VAR */
float fval; /* FLOAT */
ScriptData *defn; /* FUNCTION, PROCEDURE */
char *str; /* STRING */
} u;
int nargs;
Symbol();
} Symbol;
typedef union Datum { /* interpreter stack type */
int val;
Symbol *sym;
Datum() { val = 0; sym = NULL; }
} Datum;
typedef struct CFrame { /* proc/func call stack frame */
Symbol *sp; /* symbol table entry */
int retpc; /* where to resume after return */
ScriptData *retscript; /* which script to resume after return */
} CFrame;
typedef Common::HashMap<int32, ScriptData *> ScriptHash;
typedef Common::Array<Datum> StackData;
typedef Common::HashMap<Common::String, Symbol *, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> SymbolHash;
class Lingo {
public:
Lingo(DirectorEngine *vm);
~Lingo();
void addCode(Common::String code, ScriptType type, uint16 id);
void executeScript(ScriptType type, uint16 id);
void processEvent(LEvent event, int entityId);
int code1(inst code) { _currentScript->push_back(code); return _currentScript->size() - 1; }
int code2(inst code_1, inst code_2) { int o = code1(code_1); code1(code_2); return o; }
int code3(inst code_1, inst code_2, inst code_3) { int o = code1(code_1); code1(code_2); code1(code_3); return o; }
int codeString(const char *s);
int calcStringAlignment(const char *s) {
int instLen = sizeof(inst);
int l = strlen(s); return (l + 1 + instLen - 1) / instLen;
}
public:
void execute(int pc);
Symbol *lookupVar(const char *name);
void define(Common::String &s, int start, int end, int nargs);
void codeArg(Common::String &s);
int codeId(Common::String &s);
int codeId_(Common::String &s);
static void c_xpop();
static void c_printtop();
static void c_add();
static void c_sub();
static void c_mul();
static void c_div();
static void c_negate();
static void c_constpush();
static void c_varpush();
static void c_assign();
bool verify(Symbol *s);
static void c_eval();
static void c_repeatwhilecode();
static void c_repeatwithcode();
static void c_ifcode();
static void c_eq();
static void c_neq();
static void c_gt();
static void c_lt();
static void c_ge();
static void c_le();
static void c_call();
static void c_procret();
static void c_exit();
static void c_mci();
static void c_mciwait();
static void c_goto();
static void c_gotoloop();
static void c_gotonext();
static void c_gotoprevious();
void func_mci(Common::String &s);
void func_mciwait(Common::String &s);
void func_goto(Common::String &frame, Common::String &movie);
public:
ScriptData *_currentScript;
ScriptType _currentScriptType;
bool _returning;
bool _indef;
Common::Array<CFrame *> _callstack;
private:
int parse(const char *code);
void push(Datum d);
Datum pop(void);
Common::HashMap<uint32, const char *> _eventHandlerTypes;
Common::HashMap<Common::String, Audio::AudioStream *> _audioAliases;
ScriptHash _scripts[kMaxScriptType + 1];
SymbolHash _vars;
SymbolHash _handlers;
int _pc;
StackData _stack;
DirectorEngine *_vm;
};
extern Lingo *g_lingo;
} // End of namespace Director
#endif
|
