aboutsummaryrefslogtreecommitdiff
path: root/engines/parallaction/input.cpp
blob: 28d0ad888da64b1341ec2590338d8590337949e1 (plain)
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
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/events.h"

#include "parallaction/input.h"
#include "parallaction/parallaction.h"
#include "parallaction/debug.h"

namespace Parallaction {

// FIXME: the engine has 3 event loops. The following routine hosts the main one,
// and it's called from 8 different places in the code. There exist 2 more specialised
// loops which could possibly be merged into this one with some effort in changing
// caller code, i.e. adding condition checks.
//
uint16 Input::readInput() {

	Common::Event e;
	uint16 KeyDown = 0;

	_mouseButtons = kMouseNone;

	Common::EventManager *eventMan = _vm->_system->getEventManager();
	while (eventMan->pollEvent(e)) {

		switch (e.type) {
		case Common::EVENT_KEYDOWN:
			if (e.kbd.flags == Common::KBD_CTRL && e.kbd.keycode == 'd')
				_vm->_debugger->attach();
			if (_vm->getFeatures() & GF_DEMO) break;
			if (e.kbd.keycode == Common::KEYCODE_l) KeyDown = kEvLoadGame;
			if (e.kbd.keycode == Common::KEYCODE_s) KeyDown = kEvSaveGame;
			break;

		case Common::EVENT_LBUTTONDOWN:
			_mouseButtons = kMouseLeftDown;
			_mousePos = e.mouse;
			break;

		case Common::EVENT_LBUTTONUP:
			_mouseButtons = kMouseLeftUp;
			_mousePos = e.mouse;
			break;

		case Common::EVENT_RBUTTONDOWN:
			_mouseButtons = kMouseRightDown;
			_mousePos = e.mouse;
			break;

		case Common::EVENT_RBUTTONUP:
			_mouseButtons = kMouseRightUp;
			_mousePos = e.mouse;
			break;

		case Common::EVENT_MOUSEMOVE:
			_mousePos = e.mouse;
			break;

		case Common::EVENT_QUIT:
			// TODO: don't quit() here, just have caller routines to check
			// on kEngineQuit and exit gracefully to allow the engine to shut down
			_engineFlags |= kEngineQuit;
			_vm->_system->quit();
			break;

		default:
			break;

		}

	}

	if (_vm->_debugger->isAttached())
		_vm->_debugger->onFrame();

	return KeyDown;

}

// FIXME: see comment for readInput()
void Input::waitForButtonEvent(uint32 buttonEventMask, int32 timeout) {

	if (buttonEventMask == kMouseNone) {
		_mouseButtons = kMouseNone;	// don't wait on nothing
		return;
	}

	const int32 LOOP_RESOLUTION = 30;
	if (timeout <= 0) {
		do {
			readInput();
			_vm->_system->delayMillis(LOOP_RESOLUTION);
		} while ((_mouseButtons & buttonEventMask) == 0);
	} else {
		do {
			readInput();
			_vm->_system->delayMillis(LOOP_RESOLUTION);
			timeout -= LOOP_RESOLUTION;
		} while ((timeout > 0) && (_mouseButtons & buttonEventMask) == 0);
	}

}

// FIXME: see comment for readInput()
void Input::waitUntilLeftClick() {

	do {
		readInput();
		_vm->_gfx->updateScreen();
		_vm->_system->delayMillis(30);
	} while (_mouseButtons != kMouseLeftUp);

	return;
}


void Input::updateGameInput() {

	int16 keyDown = readInput();

	debugC(3, kDebugInput, "translateInput: input flags (%i, %i, %i, %i)",
		!_mouseHidden,
		(_engineFlags & kEngineBlockInput) == 0,
		(_engineFlags & kEngineWalking) == 0,
		(_engineFlags & kEngineChangeLocation) == 0
	);

	if ((_mouseHidden) ||
		(_engineFlags & kEngineBlockInput) ||
		(_engineFlags & kEngineWalking) ||
		(_engineFlags & kEngineChangeLocation)) {

		return;
	}

	if (keyDown == kEvQuitGame) {
		_inputData._event = kEvQuitGame;
	} else
	if (keyDown == kEvSaveGame) {
		_inputData._event = kEvSaveGame;
	} else
	if (keyDown == kEvLoadGame) {
		_inputData._event = kEvLoadGame;
	} else {
		_inputData._mousePos = _mousePos;
		_inputData._event = kEvNone;
		if (!translateGameInput()) {
			translateInventoryInput();
		}
	}

}

void Input::updateCommentInput() {
	waitUntilLeftClick();

	_vm->_gfx->hideDialogueStuff();
	_vm->_gfx->setHalfbriteMode(false);

	_inputMode = kInputModeGame;
}

InputData* Input::updateInput() {

	_inputData._event = kEvNone;

	switch (_inputMode) {
	case kInputModeComment:
		updateCommentInput();
		break;

	case kInputModeGame:
		updateGameInput();
		break;
	}

	return &_inputData;
}

bool Input::translateGameInput() {

	if ((_engineFlags & kEnginePauseJobs) || (_engineFlags & kEngineInventory)) {
		return false;
	}

	if (_actionAfterWalk) {
		// if walking is over, then take programmed action
		_inputData._event = kEvAction;
		_actionAfterWalk = false;
		return true;
	}

	if (_mouseButtons == kMouseRightDown) {
		// right button down shows inventory

		if (_vm->hitZone(kZoneYou, _mousePos.x, _mousePos.y) && (_activeItem._id != 0)) {
			_activeItem._index = (_activeItem._id >> 16) & 0xFFFF;
			_engineFlags |= kEngineDragging;
		}

		_inputData._event = kEvOpenInventory;
		_transCurrentHoverItem = -1;
		return true;
	}

	// test if mouse is hovering on an interactive zone for the currently selected inventory item
	ZonePtr z = _vm->hitZone(_activeItem._id, _mousePos.x, _mousePos.y);

	if (((_mouseButtons == kMouseLeftUp) && (_activeItem._id == 0) && ((_engineFlags & kEngineWalking) == 0)) && ((!z) || ((z->_type & 0xFFFF) != kZoneCommand))) {
		_inputData._event = kEvWalk;
		return true;
	}

	if ((z != _hoverZone) && (_hoverZone)) {
		_hoverZone = nullZonePtr;
		_inputData._event = kEvExitZone;
		return true;
	}

	if (!z) {
		_inputData._event = kEvNone;
		return true;
	}

	if ((!_hoverZone) && ((z->_flags & kFlagsNoName) == 0)) {
		_hoverZone = z;
		_inputData._event = kEvEnterZone;
		_inputData._label = z->_label;
		return true;
	}

	if ((_mouseButtons == kMouseLeftUp) && ((_activeItem._id != 0) || ((z->_type & 0xFFFF) == kZoneCommand))) {

		_inputData._zone = z;
		if (z->_flags & kFlagsNoWalk) {
			// character doesn't need to walk to take specified action
			_inputData._event = kEvAction;

		} else {
			// action delayed: if Zone defined a moveto position the character is programmed to move there,
			// else it will move to the mouse position
			_inputData._event = kEvWalk;
			_actionAfterWalk = true;
			if (z->_moveTo.y != 0) {
				_inputData._mousePos = z->_moveTo;
			}
		}

		_vm->beep();
		_vm->setArrowCursor();
		return true;
	}

	return true;

}

bool Input::translateInventoryInput() {

	if ((_engineFlags & kEngineInventory) == 0) {
		return false;
	}

	// in inventory
	int16 _si = _vm->getHoverInventoryItem(_mousePos.x, _mousePos.y);

	if (_mouseButtons == kMouseRightUp) {
		// right up hides inventory

		_inputData._event = kEvCloseInventory;
		_inputData._inventoryIndex = _vm->getHoverInventoryItem(_mousePos.x, _mousePos.y);
		_vm->highlightInventoryItem(-1);			// disable

		if ((_engineFlags & kEngineDragging) == 0) {
			return true;
		}

		_engineFlags &= ~kEngineDragging;
		ZonePtr z = _vm->hitZone(kZoneMerge, _activeItem._index, _vm->getInventoryItemIndex(_inputData._inventoryIndex));

		if (z) {
			_vm->dropItem(z->u.merge->_obj1);
			_vm->dropItem(z->u.merge->_obj2);
			_vm->addInventoryItem(z->u.merge->_obj3);
			_vm->runCommands(z->_commands);
		}

		return true;
	}

	if (_si == _transCurrentHoverItem) {
		_inputData._event = kEvNone;
		return true;
	}

	_transCurrentHoverItem = _si;
	_inputData._event = kEvHoverInventory;
	_inputData._inventoryIndex = _si;
	return true;

}

void Input::showCursor(bool visible) {
	_mouseHidden = !visible;
	_vm->_system->showMouse(visible);
}


} // namespace Parallaction