mirror of
https://github.com/libretro/scummvm.git
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389 lines
13 KiB
C++
389 lines
13 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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/*
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* This code is based on original Hugo Trilogy source code
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*
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* Copyright (c) 1989-1995 David P. Gray
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*
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*/
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// mouse.cpp : Handle all mouse activity
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#include "common/debug.h"
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#include "common/system.h"
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#include "hugo/hugo.h"
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#include "hugo/game.h"
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#include "hugo/mouse.h"
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#include "hugo/schedule.h"
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#include "hugo/display.h"
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#include "hugo/inventory.h"
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#include "hugo/route.h"
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#include "hugo/util.h"
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#include "hugo/object.h"
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#include "hugo/text.h"
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namespace Hugo {
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MouseHandler::MouseHandler(HugoEngine *vm) : _vm(vm) {
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_hotspots = nullptr;
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_leftButtonFl = false;
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_rightButtonFl = false;
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_jumpExitFl = false; // Can't jump to a screen exit
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_mouseX = kXPix / 2;
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_mouseY = kYPix / 2;
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}
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void MouseHandler::resetLeftButton() {
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_leftButtonFl = false;
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}
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void MouseHandler::resetRightButton() {
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_rightButtonFl = false;
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}
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void MouseHandler::setLeftButton() {
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_leftButtonFl = true;
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}
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void MouseHandler::setRightButton() {
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_rightButtonFl = true;
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}
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void MouseHandler::setJumpExitFl(bool fl) {
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_jumpExitFl = fl;
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}
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void MouseHandler::setMouseX(int x) {
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_mouseX = x;
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}
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void MouseHandler::setMouseY(int y) {
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_mouseY = y;
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}
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void MouseHandler::freeHotspots() {
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free(_hotspots);
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_hotspots = nullptr;
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}
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bool MouseHandler::getJumpExitFl() const {
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return _jumpExitFl;
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}
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int MouseHandler::getMouseX() const {
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return _mouseX;
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}
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int MouseHandler::getMouseY() const {
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return _mouseY;
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}
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int16 MouseHandler::getDirection(const int16 hotspotId) const {
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return _hotspots[hotspotId]._direction;
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}
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int16 MouseHandler::getHotspotActIndex(const int16 hotspotId) const {
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return _hotspots[hotspotId]._actIndex;
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}
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/**
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* Shadow-blit supplied string into dib_a at cx,cy and add to display list
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*/
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void MouseHandler::cursorText(const char *buffer, const int16 cx, const int16 cy, const Uif fontId, const int16 color) {
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debugC(1, kDebugMouse, "cursorText(%s, %d, %d, %d, %d)", buffer, cx, cy, fontId, color);
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_vm->_screen->loadFont(fontId);
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// Find bounding rect for string
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int16 sdx = _vm->_screen->stringLength(buffer);
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int16 sdy = _vm->_screen->fontHeight() + 1; // + 1 for shadow
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int16 sx, sy;
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if (cx < kXPix / 2) {
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sx = cx + kCursorNameOffX;
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sy = (_vm->_inventory->getInventoryObjId() == -1) ? cy + kCursorNameOffY : cy + kCursorNameOffY - (_vm->_screen->fontHeight() + 1);
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} else {
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sx = cx - sdx - kCursorNameOffX / 2;
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sy = cy + kCursorNameOffY;
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}
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// Display the string and add rect to display list
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_vm->_screen->shadowStr(sx, sy, buffer, _TBRIGHTWHITE);
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_vm->_screen->displayList(kDisplayAdd, sx, sy, sdx, sdy);
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}
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/**
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* Find the exit hotspot containing cx, cy.
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* Return hotspot index or -1 if not found.
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*/
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int16 MouseHandler::findExit(const int16 cx, const int16 cy, byte screenId) {
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debugC(2, kDebugMouse, "findExit(%d, %d, %d)", cx, cy, screenId);
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for (int i = 0; _hotspots[i]._screenIndex >= 0; i++) {
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if (_hotspots[i]._screenIndex == screenId) {
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if (cx >= _hotspots[i]._x1 && cx <= _hotspots[i]._x2 && cy >= _hotspots[i]._y1 && cy <= _hotspots[i]._y2)
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return i;
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}
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}
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return -1;
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}
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/**
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* Process a mouse right click at coord cx, cy over object objid
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*/
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void MouseHandler::processRightClick(const int16 objId, const int16 cx, const int16 cy) {
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debugC(1, kDebugMouse, "ProcessRightClick(%d, %d, %d)", objId, cx, cy);
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Status &gameStatus = _vm->getGameStatus();
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if (gameStatus._storyModeFl || _vm->_hero->_pathType == kPathQuiet) // Make sure user has control
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return;
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int16 inventObjId = _vm->_inventory->getInventoryObjId();
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// Check if this was over iconbar
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if ((_vm->_inventory->getInventoryState() == kInventoryActive) && (cy < kInvDy + kDibOffY)) { // Clicked over iconbar object
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if (inventObjId == -1)
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_vm->_screen->selectInventoryObjId(objId);
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else if (inventObjId == objId)
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_vm->_screen->resetInventoryObjId();
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else
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_vm->_object->useObject(objId); // Use status.objid on object
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} else { // Clicked over viewport object
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Object *obj = &_vm->_object->_objects[objId];
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int16 x, y;
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switch (obj->_viewx) { // Where to walk to
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case -1: { // Walk to object position
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bool foundFl = false;
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if (_vm->_object->findObjectSpace(obj, &x, &y))
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foundFl = _vm->_route->startRoute(kRouteGet, objId, x, y); // TRUE if route found to object
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if (!foundFl) // Can't get there, try to use from here
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_vm->_object->useObject(objId);
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}
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break;
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case 0: // Immediate use
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_vm->_object->useObject(objId); // Pick up or use object
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break;
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default: // Walk to view point if possible
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if (!_vm->_route->startRoute(kRouteGet, objId, obj->_viewx, obj->_viewy)) {
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if (_vm->_hero->_cycling == kCycleInvisible) // If invisible do
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_vm->_object->useObject(objId); // immediate use
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else
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Utils::notifyBox(_vm->_text->getTextMouse(kMsNoWayText)); // Can't get there
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}
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break;
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}
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}
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}
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/** Process a left mouse click over:
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* 1. An icon - show description
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* 2. An object - walk to and show description
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* 3. An icon scroll arrow - scroll the iconbar
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* 4. Nothing - attempt to walk there
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* 5. Exit - walk to exit hotspot
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*/
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void MouseHandler::processLeftClick(const int16 objId, const int16 cx, const int16 cy) {
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debugC(1, kDebugMouse, "ProcessLeftClick(%d, %d, %d)", objId, cx, cy);
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int16 i, x, y;
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Object *obj;
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Status &gameStatus = _vm->getGameStatus();
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if (gameStatus._storyModeFl || _vm->_hero->_pathType == kPathQuiet) // Make sure user has control
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return;
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switch (objId) {
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case -1: // Empty space - attempt to walk there
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_vm->_route->startRoute(kRouteSpace, 0, cx, cy);
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break;
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case kLeftArrow: // A scroll arrow - scroll the iconbar
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case kRightArrow:
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// Scroll the iconbar and display results
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_vm->_inventory->processInventory((objId == kLeftArrow) ? kInventoryActionLeft : kInventoryActionRight);
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_vm->_screen->moveImage(_vm->_screen->getIconBuffer(), 0, 0, kXPix, kInvDy, kXPix, _vm->_screen->getFrontBuffer(), 0, kDibOffY, kXPix);
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_vm->_screen->moveImage(_vm->_screen->getIconBuffer(), 0, 0, kXPix, kInvDy, kXPix, _vm->_screen->getBackBuffer(), 0, kDibOffY, kXPix);
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_vm->_screen->displayList(kDisplayAdd, 0, kDibOffY, kXPix, kInvDy);
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break;
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case kExitHotspot: // Walk to exit hotspot
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i = findExit(cx, cy, *_vm->_screenPtr);
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x = _hotspots[i]._viewx;
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y = _hotspots[i]._viewy;
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if (x >= 0) { // Hotspot refers to an exit
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// Special case of immediate exit
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if (_jumpExitFl) {
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// Get rid of iconbar if necessary
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if (_vm->_inventory->getInventoryState() != kInventoryOff)
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_vm->_inventory->setInventoryState(kInventoryUp);
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_vm->_scheduler->insertActionList(_hotspots[i]._actIndex);
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} else { // Set up route to exit spot
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if (_hotspots[i]._direction == Common::KEYCODE_RIGHT)
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x -= kHeroMaxWidth;
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else if (_hotspots[i]._direction == Common::KEYCODE_LEFT)
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x += kHeroMaxWidth;
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if (!_vm->_route->startRoute(kRouteExit, i, x, y))
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Utils::notifyBox(_vm->_text->getTextMouse(kMsNoWayText)); // Can't get there
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}
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// Get rid of any attached icon
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_vm->_screen->resetInventoryObjId();
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}
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break;
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default: // Look at an icon or object
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obj = &_vm->_object->_objects[objId];
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// Over iconbar - immediate description
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if ((_vm->_inventory->getInventoryState() == kInventoryActive) && (cy < kInvDy + kDibOffY)) {
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_vm->_object->lookObject(obj);
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} else {
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bool foundFl = false; // TRUE if route found to object
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switch (obj->_viewx) { // Clicked over viewport object
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case -1: // Walk to object position
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if (_vm->_object->findObjectSpace(obj, &x, &y))
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foundFl = _vm->_route->startRoute(kRouteLook, objId, x, y);
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if (!foundFl) // Can't get there, immediate description
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_vm->_object->lookObject(obj);
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break;
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case 0: // Immediate description
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_vm->_object->lookObject(obj);
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break;
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default: // Walk to view point if possible
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if (!_vm->_route->startRoute(kRouteLook, objId, obj->_viewx, obj->_viewy)) {
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if (_vm->_hero->_cycling == kCycleInvisible) // If invisible do
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_vm->_object->lookObject(obj); // immediate decription
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else
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Utils::notifyBox(_vm->_text->getTextMouse(kMsNoWayText)); // Can't get there
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}
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break;
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}
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}
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break;
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}
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}
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/**
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* Process mouse activity
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*/
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void MouseHandler::mouseHandler() {
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debugC(2, kDebugMouse, "mouseHandler");
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Status &gameStatus = _vm->getGameStatus();
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Istate inventState = _vm->_inventory->getInventoryState();
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if ((gameStatus._viewState != kViewPlay) && (inventState != kInventoryActive))
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return;
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int16 cx = getMouseX();
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int16 cy = getMouseY();
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// gameStatus._cx = cx; // Save cursor coords
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// gameStatus._cy = cy;
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// Don't process if outside client area
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if ((cx < 0) || (cx > kXPix) || (cy < kDibOffY) || (cy > kViewSizeY + kDibOffY))
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return;
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int16 objId = -1; // Current source object
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// Process cursor over an object or icon
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if (inventState == kInventoryActive) { // Check inventory icon bar first
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objId = _vm->_inventory->processInventory(kInventoryActionGet, cx, cy);
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} else {
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if (cy < 5 && cy > 0) {
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_vm->_topMenu->runModal();
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}
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}
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if (!gameStatus._gameOverFl) {
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if (objId == -1) // No match, check rest of view
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objId = _vm->_object->findObject(cx, cy);
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if (objId >= 0) { // Got a match
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// Display object name next to cursor (unless CURSOR_NOCHAR)
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// Note test for swapped hero name
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const char *name = _vm->_text->getNoun(_vm->_object->_objects[(objId == kHeroIndex) ? _vm->_heroImage : objId]._nounIndex, kCursorNameIndex);
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if (name[0] != kCursorNochar)
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cursorText(name, cx, cy, U_FONT8, _TBRIGHTWHITE);
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// Process right click over object in view or iconbar
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if (_rightButtonFl)
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processRightClick(objId, cx, cy);
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}
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// Process cursor over an exit hotspot
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if (objId == -1) {
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int i = findExit(cx, cy, *_vm->_screenPtr);
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if (i != -1 && _hotspots[i]._viewx >= 0) {
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objId = kExitHotspot;
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cursorText(_vm->_text->getTextMouse(kMsExit), cx, cy, U_FONT8, _TBRIGHTWHITE);
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}
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}
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}
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// Left click over icon, object or to move somewhere
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if (_leftButtonFl)
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processLeftClick(objId, cx, cy);
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// Clear mouse click states
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resetLeftButton();
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resetRightButton();
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}
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void MouseHandler::readHotspot(Common::ReadStream &in, Hotspot &hotspot) {
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hotspot._screenIndex = in.readSint16BE();
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hotspot._x1 = in.readSint16BE();
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hotspot._y1 = in.readSint16BE();
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hotspot._x2 = in.readSint16BE();
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hotspot._y2 = in.readSint16BE();
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hotspot._actIndex = in.readUint16BE();
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hotspot._viewx = in.readSint16BE();
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hotspot._viewy = in.readSint16BE();
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hotspot._direction = in.readSint16BE();
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}
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/**
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* Load hotspots data from hugo.dat
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*/
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void MouseHandler::loadHotspots(Common::ReadStream &in) {
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Hotspot *wrkHotspots = 0;
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Hotspot tmp;
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memset(&tmp, 0, sizeof(tmp));
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for (int varnt = 0; varnt < _vm->_numVariant; varnt++) {
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int numRows = in.readUint16BE();
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if (varnt == _vm->_gameVariant)
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_hotspots = wrkHotspots = (Hotspot *)malloc(sizeof(Hotspot) * numRows);
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for (int i = 0; i < numRows; i++)
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readHotspot(in, (varnt == _vm->_gameVariant) ? wrkHotspots[i] : tmp);
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}
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}
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/**
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* Display hotspot boundaries for the current screen
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*/
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void MouseHandler::drawHotspots() const {
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for (int i = 0; _hotspots[i]._screenIndex >= 0; i++) {
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Hotspot *hotspot = &_hotspots[i];
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if (hotspot->_screenIndex == _vm->_hero->_screenIndex)
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_vm->_screen->drawRectangle(false, hotspot->_x1, hotspot->_y1, hotspot->_x2, hotspot->_y2, _TLIGHTRED);
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}
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}
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} // End of namespace Hugo
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