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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/* 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.
*
*/
#include "glk/frotz/processor.h"
namespace Glk {
namespace Frotz {
#define INPUT_BUFFER_SIZE 200
bool Processor::read_yes_or_no(const char *s) {
zchar key;
print_string(s);
print_string("? (y/n) >");
key = stream_read_key(0, 0, false);
if (key == 'y' || key == 'Y') {
print_string("y\n");
return true;
} else {
print_string("n\n");
return false;
}
}
void Processor::read_string(int max, zchar *buffer) {
zchar key;
buffer[0] = 0;
do {
key = stream_read_input(max, buffer, 0, 0, false, false);
} while (key != ZC_RETURN);
}
bool Processor::is_terminator(zchar key) {
if (key == ZC_TIME_OUT)
return true;
if (key == ZC_RETURN)
return true;
if (key >= ZC_HKEY_MIN && key <= ZC_HKEY_MAX)
return true;
if (h_terminating_keys != 0) {
if (key >= ZC_ARROW_MIN && key <= ZC_MENU_CLICK) {
zword addr = h_terminating_keys;
zbyte c;
do {
LOW_BYTE(addr, c);
if (c == 255 || key == translate_from_zscii(c))
return true;
addr++;
} while (c != 0);
}
}
return false;
}
void Processor::z_make_menu() {
// This opcode was only used for the Macintosh version of Journey.
// It controls menus with numbers greater than 2 (menus 0, 1 and 2
// are system menus).
branch(false);
}
int Processor::read_number() {
zchar buffer[6];
int value = 0;
int i;
read_string(5, buffer);
for (i = 0; buffer[i] != 0; i++)
if (buffer[i] >= '0' && buffer[i] <= '9')
value = 10 * value + buffer[i] - '0';
return value;
}
void Processor::z_read() {
zchar buffer[INPUT_BUFFER_SIZE];
zword addr;
zchar key;
zbyte max, size;
zbyte c;
int i;
// Supply default arguments
if (zargc < 3)
zargs[2] = 0;
// Get maximum input size
addr = zargs[0];
LOW_BYTE(addr, max);
if (h_version <= V4)
max--;
if (max >= INPUT_BUFFER_SIZE)
max = INPUT_BUFFER_SIZE - 1;
// Get initial input size
if (h_version >= V5) {
addr++;
LOW_BYTE(addr, size);
} else {
size = 0;
}
// Copy initial input to local buffer
for (i = 0; i < size; i++) {
addr++;
LOW_BYTE(addr, c);
buffer[i] = translate_from_zscii(c);
}
buffer[i] = 0;
// Draw status line for V1 to V3 games
if (h_version <= V3)
z_show_status();
// Read input from current input stream
key = stream_read_input(
max, buffer, // buffer and size
zargs[2], // timeout value
zargs[3], // timeout routine
false, // enable hot keys
h_version == V6 // no script in V6
);
if (key == ZC_BAD)
return;
// Perform save_undo for V1 to V4 games
if (h_version <= V4)
save_undo();
// Copy local buffer back to dynamic memory
for (i = 0; buffer[i] != 0; i++) {
if (key == ZC_RETURN) {
buffer[i] = unicode_tolower (buffer[i]);
}
storeb((zword)(zargs[0] + ((h_version <= V4) ? 1 : 2) + i), translate_to_zscii(buffer[i]));
}
// Add null character (V1-V4) or write input length into 2nd byte
if (h_version <= V4)
storeb((zword)(zargs[0] + 1 + i), 0);
else
storeb((zword)(zargs[0] + 1), i);
// Tokenise line if a token buffer is present
if (key == ZC_RETURN && zargs[1] != 0)
tokenise_line (zargs[0], zargs[1], 0, false);
// Store key
if (h_version >= V5)
store(translate_to_zscii(key));
}
void Processor::z_read_char() {
zchar key;
// Supply default arguments
if (zargc < 2)
zargs[1] = 0;
// Read input from the current input stream
key = stream_read_key(
zargs[1], // timeout value
zargs[2], // timeout routine
false // enable hot keys
);
if (key == ZC_BAD)
return;
// Store key
store(translate_to_zscii(key));
}
void Processor::z_read_mouse() {
zword btn;
// Read the mouse position, the last menu click and which buttons are down
btn = os_read_mouse();
hx_mouse_y = mouse_y;
hx_mouse_x = mouse_x;
storew((zword)(zargs[0] + 0), hx_mouse_y);
storew((zword)(zargs[0] + 2), hx_mouse_x);
storew((zword)(zargs[0] + 4), btn); // mouse button bits
storew((zword)(zargs[0] + 6), menu_selected); // menu selection
}
} // End of namespace Frotz
} // End of namespace Glk
|
