scummvm/engines/cruise/mouse.cpp
2021-12-26 18:48:43 +01:00

96 lines
2.4 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "cruise/cruise_main.h"
#include "cruise/staticres.h"
#include "common/system.h"
#include "graphics/cursorman.h"
namespace Cruise {
int16 main10;
struct MouseCursor {
int hotspotX;
int hotspotY;
const byte *bitmap;
};
static const MouseCursor mouseCursors[] = {
{ 1, 1, mouseCursorNormal },
{ 0, 0, mouseCursorDisk },
{ 7, 7, mouseCursorCross },
{ 0, 0, mouseCursorNoMouse },
{ 10, 6, mouseCursorWalk },
{ 10, 6, mouseCursorExit },
{ 10, 6, mouseCursorMagnifyingGlass }
};
CursorType currentCursor = CURSOR_NOMOUSE;
static const byte cursorPalette[] = {
0, 0, 0,
0xff, 0xff, 0xff
};
void changeCursor(CursorType eType) {
assert(eType >= 0 && eType < CURSOR_MAX);
if (currentCursor != eType) {
byte mouseCursor[16 * 16];
const MouseCursor *mc = &mouseCursors[eType];
const byte *src = mc->bitmap;
for (int i = 0; i < 32; ++i) {
int offs = i * 8;
for (byte mask = 0x80; mask != 0; mask >>= 1) {
if (src[0] & mask) {
mouseCursor[offs] = 1;
} else if (src[32] & mask) {
mouseCursor[offs] = 0;
} else {
mouseCursor[offs] = 0xFF;
}
++offs;
}
++src;
}
CursorMan.replaceCursor(mouseCursor, 16, 16, mc->hotspotX, mc->hotspotY, 0xFF);
CursorMan.replaceCursorPalette(cursorPalette, 0, 2);
currentCursor = eType;
}
}
bool isMouseOn() {
return (currentCursor != CURSOR_NOMOUSE) && CursorMan.isVisible();
}
void mouseOff() {
CursorMan.showMouse(false);
g_system->updateScreen();
}
void mouseOn() {
CursorMan.showMouse(true);
g_system->updateScreen();
}
} // End of namespace Cruise