scummvm/engines/access/events.cpp

374 lines
8.6 KiB
C++

/* 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 "common/scummsys.h"
#include "graphics/cursorman.h"
#include "common/events.h"
#include "common/endian.h"
#include "engines/util.h"
#include "access/access.h"
#include "access/events.h"
#include "access/player.h"
#include "access/amazon/amazon_resources.h"
#define CURSOR_WIDTH 16
#define CURSOR_HEIGHT 16
namespace Access {
EventsManager::EventsManager(AccessEngine *vm) : _vm(vm) {
_cursorId = CURSOR_NONE;
_normalMouse = CURSOR_CROSSHAIRS;
_frameCounter = 10;
_priorFrameTime = 0;
_leftButton = _rightButton = false;
_middleButton = false;
_wheelUp = _wheelDown = false;
_mouseCol = _mouseRow = 0;
_cursorExitFlag = false;
_vbCount = 0;
_keyCode = Common::KEYCODE_INVALID;
_priorTimerTime = 0;
}
EventsManager::~EventsManager() {
_invCursor.free();
}
void EventsManager::forceSetCursor(CursorType cursorId) {
setNormalCursor(cursorId);
setCursor(cursorId);
}
void EventsManager::setNormalCursor(CursorType cursorId) {
_normalMouse = cursorId;
}
void EventsManager::setCursor(CursorType cursorId) {
if (cursorId == _cursorId)
return;
_cursorId = cursorId;
if (cursorId == CURSOR_INVENTORY) {
// Set the cursor
CursorMan.replaceCursor(_invCursor.getPixels(), _invCursor.w, _invCursor.h,
_invCursor.w / 2, _invCursor.h / 2, 0);
} else {
// Get a pointer to the mouse data to use, and get the cursor hotspot
const byte *srcP = &_vm->_res->CURSORS[cursorId][0];
int hotspotX = (int16)READ_LE_UINT16(srcP);
int hotspotY = (int16)READ_LE_UINT16(srcP + 2);
srcP += 4;
// Create a surface to build up the cursor on
Graphics::Surface cursorSurface;
cursorSurface.create(16, 16, Graphics::PixelFormat::createFormatCLUT8());
byte *destP = (byte *)cursorSurface.getPixels();
Common::fill(destP, destP + CURSOR_WIDTH * CURSOR_HEIGHT, 0);
// Loop to build up the cursor
for (int y = 0; y < CURSOR_HEIGHT; ++y) {
destP = (byte *)cursorSurface.getBasePtr(0, y);
int width = CURSOR_WIDTH;
int skip = *srcP++;
int plot = *srcP++;
if (skip >= width)
break;
// Skip over pixels
destP += skip;
width -= skip;
// Write out the pixels to plot
while (plot > 0 && width > 0) {
*destP++ = *srcP++;
--plot;
--width;
}
}
// Set the cursor
CursorMan.replaceCursor(cursorSurface.getPixels(), CURSOR_WIDTH, CURSOR_HEIGHT,
hotspotX, hotspotY, 0);
// Free the cursor surface
cursorSurface.free();
}
}
void EventsManager::setCursorData(Graphics::Surface *src, const Common::Rect &r) {
_invCursor.create(r.width(), r.height(), Graphics::PixelFormat::createFormatCLUT8());
_invCursor.copyRectToSurface(*src, 0, 0, r);
}
void EventsManager::showCursor() {
CursorMan.showMouse(true);
}
void EventsManager::hideCursor() {
CursorMan.showMouse(false);
}
bool EventsManager::isCursorVisible() {
return CursorMan.isVisible();
}
void EventsManager::pollEvents(bool skipTimers) {
if (checkForNextFrameCounter()) {
nextFrame();
}
if (checkForNextTimerUpdate() && !skipTimers)
nextTimer();
_vm->_sound->checkSoundQueue();
_wheelUp = _wheelDown = false;
Common::Event event;
while (g_system->getEventManager()->pollEvent(event)) {
switch (event.type) {
case Common::EVENT_QUIT:
case Common::EVENT_RTL:
return;
case Common::EVENT_KEYDOWN:
// Check for debugger
if (event.kbd.keycode == Common::KEYCODE_d && (event.kbd.flags & Common::KBD_CTRL)) {
// Attach to the debugger
_vm->_debugger->attach();
_vm->_debugger->onFrame();
} else {
keyControl(event.kbd.keycode, true);
}
return;
case Common::EVENT_KEYUP:
keyControl(event.kbd.keycode, false);
return;
case Common::EVENT_MOUSEMOVE:
_mousePos = event.mouse;
_mouseCol = _mousePos.x / 8;
_mouseRow = _mousePos.y / 8;
break;
case Common::EVENT_LBUTTONDOWN:
_leftButton = true;
return;
case Common::EVENT_LBUTTONUP:
_leftButton = false;
return;
case Common::EVENT_RBUTTONDOWN:
_rightButton = true;
return;
case Common::EVENT_RBUTTONUP:
_rightButton = false;
return;
case Common::EVENT_MBUTTONDOWN:
_middleButton = true;
return;
case Common::EVENT_MBUTTONUP:
_middleButton = false;
return;
case Common::EVENT_WHEELUP:
_wheelUp = true;
return;
case Common::EVENT_WHEELDOWN:
_wheelDown = true;
return;
default:
break;
}
}
}
void EventsManager::keyControl(Common::KeyCode keycode, bool isKeyDown) {
Player &player = *_vm->_player;
if (!isKeyDown) {
if (player._move != NONE) {
_keyCode = Common::KEYCODE_INVALID;
player._move = NONE;
}
return;
}
_keyCode = keycode;
switch (keycode) {
case Common::KEYCODE_UP:
case Common::KEYCODE_KP8:
player._move = UP;
break;
case Common::KEYCODE_DOWN:
case Common::KEYCODE_KP2:
player._move = DOWN;
break;
case Common::KEYCODE_LEFT:
case Common::KEYCODE_KP4:
player._move = LEFT;
break;
case Common::KEYCODE_RIGHT:
case Common::KEYCODE_KP6:
player._move = RIGHT;
break;
case Common::KEYCODE_KP7:
player._move = UPLEFT;
break;
case Common::KEYCODE_KP9:
player._move = UPRIGHT;
break;
case Common::KEYCODE_KP1:
player._move = DOWNLEFT;
break;
case Common::KEYCODE_KP3:
player._move = DOWNRIGHT;
break;
default:
break;
}
}
void EventsManager::pollEventsAndWait() {
pollEvents();
delay();
}
bool EventsManager::checkForNextFrameCounter() {
// Check for next game frame
uint32 milli = g_system->getMillis();
if ((milli - _priorFrameTime) >= GAME_FRAME_TIME) {
--_vbCount;
++_frameCounter;
_priorFrameTime = milli;
return true;
}
return false;
}
bool EventsManager::checkForNextTimerUpdate() {
// Check for next timer update
uint32 milli = g_system->getMillis();
if ((milli - _priorTimerTime) >= GAME_TIMER_TIME) {
_priorTimerTime = milli;
return true;
}
return false;
}
void EventsManager::nextFrame() {
// Give time to the debugger
_vm->_debugger->onFrame();
// TODO: Refactor for dirty rects
_vm->_screen->updateScreen();
}
void EventsManager::nextTimer() {
_vm->_animation->updateTimers();
_vm->_timers.updateTimers();
}
void EventsManager::delay(int time) {
g_system->delayMillis(time);
}
void EventsManager::zeroKeys() {
_keyCode = Common::KEYCODE_INVALID;
}
bool EventsManager::getKey(Common::KeyState &key) {
if (_keyCode == Common::KEYCODE_INVALID) {
return false;
} else {
key = _keyCode;
_keyCode = Common::KEYCODE_INVALID;
return true;
}
}
bool EventsManager::isKeyPending() const {
return _keyCode != Common::KEYCODE_INVALID;
}
void EventsManager::debounceLeft() {
while (_leftButton && !_vm->shouldQuit()) {
pollEventsAndWait();
}
}
void EventsManager::clearEvents() {
_leftButton = _rightButton = false;
zeroKeys();
}
void EventsManager::waitKeyMouse() {
while (!_vm->shouldQuit() && !isKeyMousePressed()) {
pollEvents(true);
delay();
}
}
Common::Point EventsManager::calcRawMouse() {
Common::Point pt;
Screen &screen = *_vm->_screen;
pt.x = _mousePos.x - screen._windowXAdd +
(_vm->_scrollCol * TILE_WIDTH) + _vm->_scrollX;
pt.y = _mousePos.y - screen._screenYOff - screen._windowYAdd +
(_vm->_scrollRow * TILE_HEIGHT) + _vm->_scrollY;
return pt;
}
int EventsManager::checkMouseBox1(Common::Array<Common::Rect> &rects) {
for (uint16 i = 0; i < rects.size(); ++i) {
if (rects[i].left == -1)
return -1;
if ((_mousePos.x > rects[i].left) && (_mousePos.x < rects[i].right)
&& (_mousePos.y > rects[i].top) && (_mousePos.y < rects[i].bottom))
return i;
}
return -1;
}
bool EventsManager::isKeyMousePressed() {
bool result = _leftButton || _rightButton || isKeyPending();
debounceLeft();
zeroKeys();
return result;
}
void EventsManager::centerMousePos() {
_mousePos = Common::Point(160, 100);
}
void EventsManager::restrictMouse() {
// No implementation in ScummVM
}
} // End of namespace Access