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+/* 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.
+ *
+ */
+
+#ifndef SHERLOCK_TATTOO_PEOPLE_H
+#define SHERLOCK_TATTOO_PEOPLE_H
+
+#include "common/scummsys.h"
+#include "common/stack.h"
+#include "sherlock/people.h"
+
+namespace Sherlock {
+
+class SherlockEngine;
+
+namespace Tattoo {
+
+// Animation sequence identifiers for characters
+enum TattooSequences {
+ // Walk Sequences Numbers for NPCs
+ WALK_UP = 0,
+ WALK_UPRIGHT = 1,
+ WALK_RIGHT = 2,
+ WALK_DOWNRIGHT = 3,
+ WALK_DOWN = 4,
+ WALK_DOWNLEFT = 5,
+ WALK_LEFT = 6,
+ WALK_UPLEFT = 7,
+
+ // Stop Sequences Numbers for NPCs
+ STOP_UP = 8,
+ STOP_UPRIGHT = 9,
+ STOP_RIGHT = 10,
+ STOP_DOWNRIGHT = 11,
+ STOP_DOWN = 12,
+ STOP_DOWNLEFT = 13,
+ STOP_LEFT = 14,
+ STOP_UPLEFT = 15,
+
+ // NPC Talk Sequence Numbers
+ TALK_UPRIGHT = 16,
+ TALK_RIGHT = 17,
+ TALK_DOWNRIGHT = 18,
+ TALK_DOWNLEFT = 19,
+ TALK_LEFT = 20,
+ TALK_UPLEFT = 21,
+
+ // NPC Listen Sequence Numbers
+ LISTEN_UPRIGHT = 22,
+ LISTEN_RIGHT = 23,
+ LISTEN_DOWNRIGHT = 24,
+ LISTEN_DOWNLEFT = 25,
+ LISTEN_LEFT = 26,
+ LISTEN_UPLEFT = 27
+};
+
+enum NpcPath {
+ NPCPATH_SET_DEST = 1,
+ NPCPATH_PAUSE = 2,
+ NPCPATH_SET_TALK_FILE = 3,
+ NPCPATH_CALL_TALK_FILE = 4,
+ NPCPATH_TAKE_NOTES = 5,
+ NPCPATH_FACE_HOLMES = 6,
+ NPCPATH_PATH_LABEL = 7,
+ NPCPATH_GOTO_LABEL = 8,
+ NPCPATH_IFFLAG_GOTO_LABEL = 9
+};
+
+struct SavedNPCPath {
+ byte _path[MAX_NPC_PATH];
+ int _npcIndex;
+ int _npcPause;
+ Common::Point _walkDest;
+ int _npcFacing;
+ bool _lookHolmes;
+
+ SavedNPCPath();
+ SavedNPCPath(byte path[MAX_NPC_PATH], int npcIndex, int npcPause, const Common::Point &walkDest,
+ int npcFacing, bool lookHolmes);
+};
+
+class TattooPerson: public Person {
+private:
+ Point32 _nextDest;
+private:
+ bool checkCollision() const;
+
+ /**
+ * Free the alternate graphics used by NPCs
+ */
+ void freeAltGraphics();
+protected:
+ /**
+ * Get the source position for a character potentially affected by scaling
+ */
+ virtual Common::Point getSourcePoint() const;
+public:
+ Common::Stack<SavedNPCPath> _pathStack;
+ int _npcIndex;
+ int _npcPause;
+ byte _npcPath[MAX_NPC_PATH];
+ bool _npcMoved;
+ int _npcFacing;
+ bool _resetNPCPath;
+ int _savedNpcSequence;
+ int _savedNpcFrame;
+ int _tempX;
+ int _tempScaleVal;
+ bool _updateNPCPath;
+ bool _lookHolmes;
+public:
+ TattooPerson();
+ virtual ~TattooPerson() {}
+
+ /**
+ * Clear the NPC related data
+ */
+ void clearNPC();
+
+ /**
+ * Called from doBgAnim to move NPCs along any set paths. If an NPC is paused in his path,
+ * he will remain paused until his pause timer runs out. If he is walking somewhere,
+ * he will continue walking there until he reaches the dest position. When an NPC stops moving,
+ * the next element of his path is processed.
+ *
+ * The path is an array of bytes with control codes followed by their parameters as needed.
+ */
+ void updateNPC();
+
+ /**
+ * Push the NPC's path data onto the path stack for when a talk file moves the NPC that
+ * has some control codes.
+ */
+ void pushNPCPath();
+
+ /**
+ * Pull an NPC's path data that has been previously saved on the path stack for that character.
+ * There are two possibilities for when the NPC was interrupted, and both are handled differently:
+ * 1) The NPC was paused at a position
+ * If the NPC didn't move, we can just restore his pause counter and exit. But if he did move,
+ * he must return to that position, and the path index must be reset to the pause he was executing.
+ * This means that the index must be decremented by 3
+ * 2) The NPC was in route to a position
+ * He must be set to walk to that position again. This is done by moving the path index
+ * so that it points to the code that set the NPC walking there in the first place.
+ * The regular calls to updateNPC will handle the rest
+ */
+ void pullNPCPath();
+
+ /**
+ * Checks a sprite associated with an NPC to see if the frame sequence specified
+ * in the sequence number uses alternate graphics, and if so if they need to be loaded
+ */
+ void checkWalkGraphics();
+
+ /**
+ * Synchronize the data for a savegame
+ */
+ void synchronize(Serializer &s);
+
+ /**
+ * This adjusts the sprites position, as well as it's animation sequence:
+ */
+ virtual void adjustSprite();
+
+ /**
+ * Bring a moving character to a standing position
+ */
+ virtual void gotoStand();
+
+ /**
+ * Set the variables for moving a character from one poisition to another
+ * in a straight line
+ */
+ virtual void setWalking();
+
+ /**
+ * Walk to the co-ordinates passed, and then face the given direction
+ */
+ virtual void walkToCoords(const Point32 &destPos, int destDir);
+
+ /**
+ * Adjusts the frame and sequence variables of a sprite that corresponds to the current speaker
+ * so that it points to the beginning of the sequence number's talk sequence in the object's
+ * sequence buffer
+ * @param seq Which sequence to use (if there's more than 1)
+ * @remarks 1: First talk seq, 2: second talk seq, etc.
+ */
+ virtual void setObjTalkSequence(int seq);
+
+ /**
+ * Walk Holmes to the NPC
+ */
+ void walkHolmesToNPC();
+};
+
+class TattooPeople : public People {
+public:
+ TattooPeople(SherlockEngine *vm);
+ virtual ~TattooPeople() {}
+
+ TattooPerson &operator[](PeopleId id) { return *(TattooPerson *)_data[id]; }
+ TattooPerson &operator[](int idx) { return *(TattooPerson *)_data[idx]; }
+
+ /**
+ * If the specified speaker is a background object, it will set it so that it uses
+ * the Listen Sequence (specified by the sequence number). If the current sequence
+ * has an Allow Talk Code in it, the _gotoSeq field will be set so that the object
+ * begins listening as soon as it hits the Allow Talk Code. If there is no Abort Code,
+ * the Listen Sequence will begin immediately.
+ * @param speaker Who is speaking
+ * @param sequenceNum Which listen sequence to use
+ */
+ void setListenSequence(int speaker, int sequenceNum = 1);
+
+ /**
+ * Restore any saved NPC walk path data from any of the NPCs
+ */
+ void pullNPCPaths();
+
+ /**
+ * Finds the scene background object corresponding to a specified speaker
+ */
+ virtual int findSpeaker(int speaker);
+
+ /**
+ * Synchronize the data for a savegame
+ */
+ virtual void synchronize(Serializer &s);
+
+ /**
+ * Change the sequence of the scene background object associated with the specified speaker.
+ */
+ virtual void setTalkSequence(int speaker, int sequenceNum = 1);
+
+ /**
+ * Load the walking images for Sherlock
+ */
+ virtual bool loadWalk();
+
+ /**
+ * Restrict passed point to zone using Sherlock's positioning rules
+ */
+ virtual const Common::Point restrictToZone(int zoneId, const Common::Point &destPos);
+};
+
+} // End of namespace Scalpel
+
+} // End of namespace Sherlock
+
+
+#endif