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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.
*
* $URL$
* $Id$
*
*/
#ifndef M4_CONVERSE_H
#define M4_CONVERSE_H
#include "common/array.h"
#include "common/hashmap.h"
#include "m4/globals.h"
#include "m4/m4.h"
#include "m4/viewmgr.h"
namespace M4 {
enum ConversationState {
kConversationOptionsShown = 0,
kEntryIsActive = 1,
kReplyIsActive = 2,
kNoConversation = 3
};
enum EntryType {
kVariable = 0,
kNode = 1,
kLinearNode = 2,
kEntry = 3,
kReply = 4,
kWeightedReply = 5
};
// Flags are:
// bit 0: if it's 1, the entry is "initial", i.e. not hidden when the dialog starts
// bit 1: if it's 1, the entry persists if selected
enum EntryFlags {
kEntryInitial = 1, // byte 0
kEntryPersists = 2 // byte 1
};
enum EntryActionType {
kUnknownAction = 0,
kGotoEntry = 1,
kHideEntry = 2,
kUnhideEntry = 3,
kDestroyEntry = 4,
kAssignValue = 5,
kExitConv = 6
};
enum LogicOp {
kOpPercent = 405,
kOpGreaterOrEqual = 421,
kOpLessOrEqual = 420,
kOpGreaterThan = 413,
kOpLessThan = 412,
kOpNotEqual = 422,
kOpCondNotEqual = 448,
kOpAssign = 407,
kOpAnd = 444,
kOpOr = 445
};
struct Condition {
int32 offset;
int32 op;
int32 val;
};
struct EntryAction {
int32 targetOffset; // absolute offset (inside the *.chk file) of the action's target
int32 value; // the value set by assignment chunks
EntryActionType actionType;
EntryType targetType;
int32 nodeId;
int32 entryId;
bool isConditional;
Condition condition;
};
struct ConvEntry {
EntryType entryType;
int32 id;
int32 offset; // absolute offset inside the *.chk file, referenced by other chunks
int32 size; // entry action data size (for MADS games)
int32 flags;
int32 fallthroughMinEntries;
int32 fallthroughOffset;
int32 weight; // weight for weighted replies
int32 totalWeight;
uint16 entryCount; // entries inside this node (for MADS games)
char voiceFile[10];
char text[512];
bool autoSelect;
bool visible;
bool isConditional;
Condition condition;
Common::Array<EntryAction*>actions;
Common::Array<ConvEntry*>entries;
};
struct EntryInfo {
EntryType targetType;
int32 nodeIndex;
int32 entryIndex;
};
struct MessageEntry {
Common::Array<char*>messageStrings;
};
enum ConverseStyle {CONVSTYLE_EARTH, CONVSTYLE_SPACE};
typedef Common::HashMap<Common::String,EntryInfo,Common::IgnoreCase_Hash,Common::IgnoreCase_EqualTo> OffsetHashMap;
typedef Common::HashMap<Common::String,int32,Common::IgnoreCase_Hash,Common::IgnoreCase_EqualTo> ConvVarHashMap;
class ConversationView: public View {
public:
ConversationView(M4Engine *vm);
~ConversationView();
void setNode(int32 nodeIndex);
void onRefresh(RectList *rects, M4Surface *destSurface);
bool onEvent(M4EventType eventType, int32 param, int x, int y, bool &captureEvents);
int32 getCurrentNodeIndex() { return _currentNodeIndex; }
void selectEntry(int entryIndex);
private:
void updateState();
void playNextReply();
int32 _currentNodeIndex;
Common::Array<ConvEntry *> _activeItems;
int _highlightedIndex;
int _xEnd;
bool _entriesShown;
ConversationState _conversationState;
SndHandle *_currentHandle;
};
class Converse {
public:
Converse(M4Engine *vm) : _vm(vm) {}
~Converse() {}
void startConversation(const char *convName, bool showConversebox = true, ConverseStyle style = CONVSTYLE_EARTH );
void endConversation();
const EntryInfo* getEntryInfo(int32 offset);
ConvEntry *getNode(int32 index) { return _convNodes[index]; }
void setValue(int32 offset, int32 value);
int32 getValue(int32 offset);
bool evaluateCondition(int32 leftVal, int32 op, int32 rightVal);
bool performAction(EntryAction *action);
/*
void resume() { play(); }
void play();
*/
private:
M4Engine *_vm;
Common::Array<ConvEntry*>_convNodes;
Common::Array<MessageEntry*>_madsMessageList;
Common::Array<char *>_convStrings;
bool _playerCommandsAllowed;
bool _interfaceWasVisible;
ConverseStyle _style;
OffsetHashMap _offsetMap;
ConvVarHashMap _variables;
void loadConversation(const char *convName);
void loadConversationMads(const char *convName);
void readConvEntryActions(Common::SubReadStream *convS, ConvEntry *curEntry);
void setEntryInfo(int32 offset, EntryType type, int32 nodeIndex, int32 entryIndex);
};
} // End of namespace M4
#endif
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