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scummvm/engines/saga2/actor.h
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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 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/>.
*
*
* Based on the original sources
* Faery Tale II -- The Halls of the Dead
* (c) 1993-1996 The Wyrmkeep Entertainment Co.
*/
#ifndef SAGA2_ACTOR_H
#define SAGA2_ACTOR_H
#include "saga2/objects.h"
#include "saga2/saveload.h"
namespace Saga2 {
class ActorAssignment;
class Band;
class MotionTask;
class TaskStack;
const int kBandingDist = kSectorSize * 2;
const int kActorScriptVars = 4;
/* ===================================================================== *
Actor character attributes
* ===================================================================== */
// Defines the colors of MANA
enum ActorSkillID {
kSkillIDArchery = 0,
kSkillIDSwordcraft,
kSkillIDShieldcraft,
kSkillIDBludgeon,
kSkillIDThrowing, // gone
kSkillIDSpellcraft,
kSkillIDStealth, // gone
kSkillIDAgility,
kSkillIDBrawn,
kSkillIDLockpick, // gone
kSkillIDPilfer, // gone
kSkillIDFirstAid, // gone
kSkillIDSpotHidden, // gone
kNumSkills
};
enum ArmorObjectTypes {
SHIRT_ARMOR = 0,
BOOT_ARMOR,
BRACER_ARMOR,
HELM_ARMOR,
NECKLACE_ARMOR,
CLOAK_ARMOR,
RING_ARMOR,
ARMOR_COUNT
};
/* ===================================================================== *
ArmorAttributes struct
* ===================================================================== */
struct ArmorAttributes {
uint8 damageAbsorbtion,
damageDivider,
defenseBonus;
};
/* ===================================================================== *
ActorAttributes structure
* ===================================================================== */
// this enum acts as a layer of indirection for the unioned allSkills
// array.
// This defines the basic skills possessed by an actor
struct ActorAttributes {
enum skillInfo {
kSkillBasePercent = 100,
kSkillFracPointsPerLevel = 5, // this being twenty and levels at 5
kSkillLevels = 20, // will make the advancement calc quick & easy
kSkillMaxLevel = kSkillFracPointsPerLevel * kSkillLevels
};
enum vitalityInfo {
kVitalityLimit = 256
};
// Automatic skills
uint8 archery, // Accuracy of missile weapons
swordcraft, // Accuracy of bladed melee weapons
shieldcraft, // Actor's ability to use a shield
bludgeon, // Accuracy of non-bladed melee weapons
throwing, // Ability to throw objects accurately
spellcraft, // Accuracy of spell combat
stealth, // Ability to remain unnoticed
agility, // Ability to dodge
brawn, // Ability to lift, and damage of weapons
lockpick; // Ability to pick locks
// Manual skills
uint8 pilfer, // Ability to "lift" an item
firstAid, // Ability to heal recent injuries
spotHidden; // Ability to spot hidden objects
// Pad byte for alignment
int8 pad;
// Hit-points
int16 vitality;
// Magic energy
int16 redMana,
orangeMana,
yellowMana,
greenMana,
blueMana,
violetMana;
uint8 &skill(int16 id) {
switch (id) {
case kSkillIDArchery: return archery;
case kSkillIDSwordcraft: return swordcraft;
case kSkillIDShieldcraft: return shieldcraft;
case kSkillIDBludgeon: return bludgeon;
case kSkillIDThrowing: return throwing;
case kSkillIDSpellcraft: return spellcraft;
case kSkillIDStealth: return stealth;
case kSkillIDAgility: return agility;
case kSkillIDBrawn: return brawn;
case kSkillIDLockpick: return lockpick;
case kSkillIDPilfer: return pilfer;
case kSkillIDFirstAid: return firstAid;
case kSkillIDSpotHidden: return spotHidden;
}
error("Incorrect skill id: %d", id);
}
int16 &mana(int16 id) {
switch (id) {
case kManaIDRed: return redMana;
case kManaIDOrange: return orangeMana;
case kManaIDYellow: return yellowMana;
case kManaIDGreen: return greenMana;
case kManaIDBlue: return blueMana;
case kManaIDViolet: return violetMana;
}
error("Incorrect mana id: %d", id);
}
uint8 getSkillLevel(int16 id) {
return skill(id) / kSkillFracPointsPerLevel + 1;
}
void read(Common::InSaveFile *in) {
archery = in->readByte();
swordcraft = in->readByte();
shieldcraft = in->readByte();
bludgeon = in->readByte();
throwing = in->readByte();
spellcraft = in->readByte();
stealth = in->readByte();
agility = in->readByte();
brawn = in->readByte();
lockpick = in->readByte();
pilfer = in->readByte();
firstAid = in->readByte();
spotHidden = in->readByte();
pad = in->readSByte();
vitality = in->readSint16LE();
redMana = in->readSint16LE();
orangeMana = in->readSint16LE();
yellowMana = in->readSint16LE();
greenMana = in->readSint16LE();
blueMana = in->readSint16LE();
violetMana = in->readSint16LE();
}
void write(Common::MemoryWriteStreamDynamic *out) {
out->writeByte(archery);
out->writeByte(swordcraft);
out->writeByte(shieldcraft);
out->writeByte(bludgeon);
out->writeByte(throwing);
out->writeByte(spellcraft);
out->writeByte(stealth);
out->writeByte(agility);
out->writeByte(brawn);
out->writeByte(lockpick);
out->writeByte(pilfer);
out->writeByte(firstAid);
out->writeByte(spotHidden);
out->writeSByte(pad);
out->writeSint16LE(vitality);
out->writeSint16LE(redMana);
out->writeSint16LE(orangeMana);
out->writeSint16LE(yellowMana);
out->writeSint16LE(greenMana);
out->writeSint16LE(blueMana);
out->writeSint16LE(violetMana);
}
}; // 28 bytes
const int kBaseCarryingCapacity = 100;
const int kCarryingCapacityBonusPerBrawn = 200 / ActorAttributes::kSkillLevels;
/* ===================================================================== *
ResourceActorProtoExtension structure
* ===================================================================== */
enum combatBehaviorTypes {
kBehaviorHungry,
kBehaviorCowardly,
kBehaviorBerserk,
kBehaviorSmart
};
// This defines the additional data fields needed for actor prototypes
struct ResourceActorProtoExtension {
ActorAttributes baseStats; // Base stats for non-player actors
// Defines behavior for combat tactics.
uint8 combatBehavior;
uint8 gruntStyle;
uint32 baseEffectFlags; // special effects, see EFFECTS.H
// Default constructor -- do nothing
ResourceActorProtoExtension() {
memset(&baseStats, 0, sizeof(baseStats));
combatBehavior = 0;
gruntStyle = 0;
baseEffectFlags = 0;
}
// Copy constructor
ResourceActorProtoExtension(ResourceActorProtoExtension &ext) {
memcpy(this, &ext, sizeof(ResourceActorProtoExtension));
}
void load(Common::SeekableReadStream *stream) {
baseStats.read(stream);
combatBehavior = stream->readByte();
gruntStyle = stream->readByte();
baseEffectFlags = stream->readUint32LE();
}
}; // 28 bytes
/* ===================================================================== *
ResourceActorPrototype structure
* ===================================================================== */
// Defines the actor prototype data as read from the resource file
struct ResourceActorPrototype {
ResourceObjectPrototype proto; // Standard prototype data
ResourceActorProtoExtension ext; // Extended actor data
void load(Common::SeekableReadStream *stream) {
proto.load(stream);
ext.load(stream);
}
};
/* ===================================================================== *
ActorProto prototype behavior for Actors
* ===================================================================== */
class ActorProto : public ProtoObj, public ResourceActorProtoExtension {
private:
enum {
kViewableRows = 3,
kViewableCols = 3,
kMaxRows = 3,
kMaxCols = 3
};
public:
ActorProto(ResourceActorPrototype &a) :
ProtoObj(a.proto),
ResourceActorProtoExtension(a.ext) {
}
// returns the containment type flags for this object
virtual uint16 containmentSet();
// returns true if this object can contain another object
virtual bool canContain(ObjectID dObj, ObjectID item);
// Determine if this object can contain another object at a
// specified slot
virtual bool canContainAt(
ObjectID dObj,
ObjectID item,
const TilePoint &where);
weaponID getWeaponID();
// use this actor
bool useAction(ObjectID dObj, ObjectID enactor);
// open this actor
bool canOpen(ObjectID dObj, ObjectID enactor);
bool openAction(ObjectID dObj, ObjectID enactor);
// close this actor
bool closeAction(ObjectID dObj, ObjectID enactor);
bool strikeAction(
ObjectID dObj,
ObjectID enactor,
ObjectID item);
bool damageAction(
ObjectID dObj,
ObjectID enactor,
ObjectID target);
// drop another object onto this actor.
bool acceptDropAction(
ObjectID dObj,
ObjectID enactor,
ObjectID droppedObj,
int count);
// cause damage directly
bool acceptDamageAction(
ObjectID dObj,
ObjectID enactor,
int8 absDamage,
effectDamageTypes dType,
int8 dice,
uint8 sides,
int8 perDieMod);
// cause healing directly
bool acceptHealingAction(ObjectID dObj, ObjectID enactor, int8 healing);
// Accept strike from an object (allows this actor to cause
// damage to the striking object).
bool acceptStrikeAction(
ObjectID dObj,
ObjectID enactor,
ObjectID strikingObj,
uint8 skillIndex);
// Handle the results of an object being inserted into this object
// at the specified slot
bool acceptInsertionAtAction(
ObjectID dObj,
ObjectID enactor,
ObjectID item,
const TilePoint &where,
int16 num = 1);
// Initiate an attack using this type of object
virtual void initiateAttack(ObjectID attacker, ObjectID target);
// Given an object sound effect record, which sound should be made
// when this object is damaged
virtual uint8 getDamageSound(const ObjectSoundFXs &soundFXs);
// Do the background processing, if needed, for this object.
void doBackgroundUpdate(GameObject *obj);
// Cause the user's associated skill to grow
void applySkillGrowth(ObjectID enactor, uint8 points = 1);
bool greetActor(
ObjectID dObj, // object dropped on
ObjectID enactor); // person doing dropping
public:
virtual uint16 getViewableRows() {
return kViewableRows;
}
virtual uint16 getViewableCols() {
return kViewableCols;
}
virtual uint16 getMaxRows() {
return kMaxRows;
}
virtual uint16 getMaxCols() {
return kMaxCols;
}
virtual bool canFitBulkwise(GameObject *container, GameObject *obj);
virtual bool canFitMasswise(GameObject *container, GameObject *obj);
virtual uint16 massCapacity(GameObject *container);
virtual uint16 bulkCapacity(GameObject *container);
};
/* ============================================================================ *
Actor: Describes an instance of a character
* ============================================================================ */
enum actorCreationFlags {
kActorPermanent = (1 << 0)
};
enum DispositionType {
kDispositionFriendly,
kDispositionEnemy,
kDispositionPlayer
};
enum actionSequenceOptions {
// Flags set by call to setAction
kAnimateRepeat = (1 << 0), // repeat animation when done
kAnimateReverse = (1 << 1), // animate in reverse direction
kAnimateAlternate = (1 << 2), // both directions, back & forth
kAnimateRandom = (1 << 3), // pick a random frame
kAnimateNoRestart = (1 << 4), // don't reset from start
// This flag is set if the animation has been put on hold until
// the actor's appearance is reloaded.
kAnimateOnHold = (1 << 5),
// This flag is set if the final frame of the animation has
// been reached.
kAnimateFinished = (1 << 6),
// This flag gets set if the sprite could not be displayed
// because it's bank hasn't been loaded yet.
kAnimateNotLoaded = (1 << 7)
};
// Various types of action sequences
enum ActorAnimationTypes {
// Various types of stands
kActionStand = 0, // standing still
kActionWaitAgressive, // an agigressive wait cycle
kActionWaitImpatient, // an impatient wait cycle
kActionWaitFriendly, // a a friendly wait cycle
// Walking and running
kActionWalk, // walking motion
kActionRun, // running motion
// Squatting
kActionDuck, // stoop to dodge sword
kActionStoop, // stoop to pick up object
// Jumping
kActionFreeFall, // how he looks in ballistic
kActionFreeFallRunning, // a running leap (free fall)
kActionJumpUp, // begin jump straight up
kActionJumpFwd, // begin jump forward
kActionJumpBack, // begin jump back in surprise
kActionLand, // land after jump
kActionFallBadly, // after a very long fall
// Climbing
kActionClimbLadder, // climb a ladder (2 directions)
// Talking & interacting
kActionTalk, // talking
kActionGesture, // gesture with hands or body
kActionGiveItem, // give or take item
// Two-handed weapon use
kActionTwoHandSwingHigh, // full overhead swing aim high
kActionTwoHandSwingLow, // full overhead swing aim low
kActionTwoHandSwingLeftHigh, // partial swing on left (high)
kActionTwoHandSwingLeftLow, // partial swing on left (low)
kActionTwoHandSwingRightHigh, // partial swing on rgt (high)
kActionTwoHandSwingRightLow, // partial swing on rgt (low)
kActionTwoHandParry, // hold sword up to parry
// One-handed weapon use
kActionSwingHigh, // one-handed swing (high)
kActionSwingLow, // one-handed swing (low)
kActionParryHigh, // one-handed parry (high)
kActionParryLow, // one-handed parry (low)
kActionShieldParry, // parry with shield
kActionThrowObject, // throw
// Other combat actions
kActionFireBow, // fire an arrow
kActionCastSpell, // cast a magic spell
kActionUseWand, // cast a magic spell w/wand
kActionUseStaff, // cast a magic spell w/staff
kActionHit, // show impact of blow
kActionKnockedDown, // knocked down by opponent
kActionDie, // death agony
// Passive actions
kActionSleep, // sleeping
kActionDead, // dead body on ground
kActionSit, // sitting at table
// Misc actions built from other frames
kActionListenAtDoor, // listening at doors
kActionShoveDoor, // try to force a door open
kActionSpecial1, // special Action
kActionSpecial2, // special Action
kActionSpecial3, // special Action
kActionSpecial4, // special Action
kActionSpecial5, // special Action
kActionSpecial6, // special Action
kActionSpecial7, // special Action
kActionSpecial8 // special Action
};
enum ActorGoalTypes {
kActorGoalFollowAssignment,
kActorGoalPreserveSelf,
kActorGoalAttackEnemy,
kActorGoalFollowLeader,
kActorGoalAvoidEnemies
};
// The actor structure will be divided into two parts. The
// ResourceActor structure defines the data as it is stored in the
// resource file. The Actor structure has a copy of all of the
// ResourceActor data members, plus data members which will be
// initialized and used during run time.
struct ResourceActor : public ResourceGameObject {
// Social loyalty
uint8 faction; // actor's faction
// Appearance attribute
uint8 colorScheme; // indirect color map
int32 appearanceID; // appearnce of this actor
// Personality attributes
int8 attitude, // cooperativeness
mood; // happiness
uint8 disposition; // actor disposition
// 0 = friendly, 1 = enemy,
// 2 = Julian, 3 = Philip,
// 4 = Kevin
// Character orientation
Direction currentFacing; // current facing direction
// Tether info
int16 tetherLocU; // tether U coordinate
int16 tetherLocV; // tether V coordinate
int16 tetherDist; // length of tether
// Held objects
ObjectID leftHandObject, // object held in left hand.
rightHandObject; // object held in right hand.
// Knowledge packets
uint16 knowledge[16];
// Schedule script ID
uint16 schedule;
// Pad bytes
uint8 reserved[18];
ResourceActor(Common::SeekableReadStream *stream);
};
class Actor : public GameObject {
friend class ActorProto;
friend class MotionTask;
friend class Task;
friend class TaskStack;
public:
// Resource fields
// Social loyalty
uint8 _faction; // actor's faction
// Appearance attribute
uint8 _colorScheme; // indirect color map
int32 _appearanceID; // appearnce of this actor
// Personality attributes
int8 _attitude, // cooperativeness
_mood; // happiness
uint8 _disposition; // actor disposition
// 0 = friendly, 1 = enemy,
// 2 = Julian, 3 = Philip,
// 4 = Kevin
// Character orientation
Direction _currentFacing; // current facing direction
// Tether info
int16 _tetherLocU; // tether U coordinate
int16 _tetherLocV; // tether V coordinate
int16 _tetherDist; // length of tether
// Held objects
ObjectID _leftHandObject, // object held in left hand.
_rightHandObject; // object held in right hand.
// Knowledge packets
uint16 _knowledge[16];
// Schedule script ID
uint16 _schedule;
// Run-time fields
uint8 _conversationMemory[4];// last things talked about
// Sprite animation variables
uint8 _currentAnimation, // current action sequence
_currentPose, // current pose in sequence
_animationFlags; // current posing flags
// Various actor flags
enum {
kAFLobotomized = (1 << 0),
kAFTemporary = (1 << 1),
kAFAfraid = (1 << 2),
kAFHasAssignment = (1 << 3),
kAFSpecialAttack = (1 << 4),
kAFFightStance = (1 << 5)
};
uint8 _flags;
// Contains sprite index and positioning info for the current
// actor state.
ActorPose _poseInfo; // current animation state
// Pointer to the appearance record (sprite array) for this actor.
ActorAppearance *_appearance; // appearance structs
int16 _cycleCount; // misc counter for actions
int16 _kludgeCount; // another misc counter
uint32 _enchantmentFlags; // flags indicating racial
// abilities and enchantments
// Movement attributes
MotionTask *_moveTask;
// Current task
TaskStack *_curTask;
// Current goal type
uint8 _currentGoal;
// Used for deltayed deactivation (and also to word-align struct)
uint8 _deactivationCounter;
// Assignment
ActorAssignment *_assignment;
// assignments
// Current effective stats
ActorAttributes _effectiveStats;
uint8 _actionCounter; // coordinate moves in combat
uint16 _effectiveResistance; // resistances (see EFFECTS.H)
uint16 _effectiveImmunity; // immunities (see EFFECTS.H)
int16 _recPointsPerUpdate; // fractional vitality recovery
int16 _currentRecoveryPoints; // fraction left from last recovery
enum vitalityRecovery {
kRecPointsPerVitality = 10
};
Actor *_leader; // This actor's leader
ObjectID _leaderID;
Band *_followers; // This actor's band of followers
BandID _followersID;
ObjectID _armorObjects[ARMOR_COUNT]; // armor objects being worn
GameObject *_currentTarget;
ObjectID _currentTargetID;
int16 _scriptVar[kActorScriptVars]; // scratch variables for scripter use
// Member functions
private:
// Initialize actor record
void init(
int16 protoIndex,
uint16 nameIndex,
uint16 scriptIndex,
int32 appearanceNum,
uint8 colorSchemeIndex,
uint8 factionNum,
uint8 initFlags);
public:
// Default constructor
Actor();
// Constructor - initial actor construction
Actor(const ResourceActor &res);
Actor(Common::InSaveFile *in);
// Destructor
~Actor();
// Return the number of bytes needed to archive this actor
int32 archiveSize();
void write(Common::MemoryWriteStreamDynamic *out);
static Actor *newActor(
int16 protoNum,
uint16 nameIndex,
uint16 scriptIndex,
int32 appearanceNum,
uint8 colorSchemeIndex,
uint8 factionNum,
uint8 initFlags);
// Delete this actor
void deleteActor();
private:
// Turn incrementally
void turn(Direction targetDir) {
Direction relativeDir = (targetDir - _currentFacing) & 0x7;
_currentFacing =
(relativeDir < 4
? _currentFacing + 1
: _currentFacing - 1)
& 0x7;
}
public:
// Cause the actor to stop his current motion task is he is
// interruptable
void stopMoving();
// Cause this actor to die
void die();
// Cause this actor to return from the dead
void imNotQuiteDead();
// makes the actor do a vitality change test
void vitalityUpdate();
// Perform actor specific activation tasks
void activateActor();
// Perform actor specific deactivation tasks
void deactivateActor();
// De-lobotomize this actor
void delobotomize();
// Lobotomize this actor
void lobotomize();
// Return a pointer to the actor's current assignment
ActorAssignment *getAssignment() {
return _flags & kAFHasAssignment
? _assignment
: nullptr;
}
// determine whether this actor has a specified property
bool hasProperty(const ActorProperty &actorProp) {
// The function call operator is used explicitly because
// Visual C++ 4.0 doesn't like it otherwise.
return actorProp.operator()(this);
}
// Determine if specified point is within actor's arms' reach
bool inReach(const TilePoint &tp);
// Determine if specified point is within an objects use range
bool inUseRange(const TilePoint &tp, GameObject *obj);
// Determine if actor is dead
bool isDead() {
return _effectiveStats.vitality <= 0;
}
// Determine if actor is immobile (i.e. can't walk)
bool isImmobile();
// Return a pointer to this actor's currently readied offensive
// object
GameObject *offensiveObject();
// Returns pointers to this actor's readied primary defensive object
// and optionally their scondary defensive object
void defensiveObject(GameObject **priPtr, GameObject **secPtr = NULL);
// Returns a pointer to the object with which this actor is
// currently blocking, if any
GameObject *blockingObject(Actor *attacker);
// Return the total used armor attributes
void totalArmorAttributes(ArmorAttributes &armorAttribs);
// Determine if specified point is within actor's attack range
bool inAttackRange(const TilePoint &tp);
// Attack the specified object with the currently selected weapon
void attack(GameObject *obj);
// Stop any attack on the specified object
void stopAttack(GameObject *obj);
// Determine if this actor can block an attack with objects
// currently being held
bool canDefend();
// Return a numeric value which roughly estimates this actor's
// offensive strength
int16 offenseScore();
// Return a numeric value which roughly estimates this actor's
// defensive strenght
int16 defenseScore();
// Handle the effect of a successful hit on an opponent in combat
void handleSuccessfulStrike(GameObject *weapon) {
weapon->proto()->applySkillGrowth(thisID());
}
// Return the value of this actor's disposition
int16 getDisposition() {
return _disposition;
}
// Give the actor a new disposition
int16 setDisposition(int16 newDisp) {
int16 oldDisp = _disposition;
if (newDisp < kDispositionPlayer)
_disposition = newDisp;
return oldDisp;
}
// Return a pointer to the effective stats
ActorAttributes *getStats() {
return &_effectiveStats;
}
// Return a pointer to this actor's base stats
ActorAttributes *getBaseStats();
// Return the color remapping table
void getColorTranslation(ColorTable map);
// Determine if this actor is interruptable
bool isInterruptable() {
return _actionCounter == 0;
}
// Determine if this actor is permanently uninterruptable
bool isPermanentlyUninterruptable() {
return _actionCounter == maxuint8;
}
// Set the inturruptability for this actor
void setInterruptablity(bool val) {
_actionCounter = val ? 0 : maxuint8;
}
// Set action time counter for this actor
// REM: the action points will eventually need to be scaled based
// upon enchantments and abilities
void setActionPoints(uint8 points) {
_actionCounter = points;
}
// Drop the all of the actor's inventory
void dropInventory();
// Place an object into this actor's right or left hand
void holdInRightHand(ObjectID objID);
void holdInLeftHand(ObjectID objID);
// Wear a piece of armor
void wear(ObjectID objID, uint8 where);
// Update the appearance of an actor with no motion task.
void updateAppearance(int32 deltaTime);
// Used To Find Wait State When Preffered Not Available
bool setAvailableAction(int16 action1, int16 action2, int16 action3, int16 actiondefault);
// Set the current animation sequence that the actor is doing.
// Returns the number of poses in the sequence, or 0 if there
// are no poses in the sequence.
int16 setAction(int16 newState, int16 flags);
// returns true if the action is available in the current
// direction.
bool isActionAvailable(int16 newState, bool anyDir = false);
// Return the number of animation frames in the specified action
// for the specified direction
int16 animationFrames(int16 actionType, Direction dir);
// Update the current animation sequence to the next frame
bool nextAnimationFrame();
// calculate which sprite frames to show. Return false if
// sprite frames are not loaded.
bool calcSpriteFrames();
// Calculate the frame list entry, given the current actor's
// body state, and facing direction.
// FrameListEntry *calcFrameState( int16 bodyState );
// Returns 0 if not moving, 1 if path being calculated,
// 2 if path being followed.
int pathFindState();
// High level actor behavior functions
private:
void setGoal(uint8 newGoal);
public:
void evaluateNeeds();
// Called every frame to update the state of this actor
void updateState();
void handleTaskCompletion(TaskResult result);
void handleOffensiveAct(Actor *attacker);
void handleDamageTaken(uint8 damage);
void handleSuccessfulStrike(Actor *target, int8 damage);
void handleSuccessfulKill(Actor *target);
private:
static bool canBlockWith(GameObject *defenseObj, Direction relativeDir);
public:
void evaluateMeleeAttack(Actor *attacker);
// Banding related functions
void bandWith(Actor *newLeader);
void disband();
bool inBandingRange() {
assert(_leader != NULL);
return _leader->IDParent() == IDParent()
&& (_leader->getLocation() - getLocation()).quickHDistance()
<= kBandingDist;
}
private:
bool addFollower(Actor *newBandMember);
void removeFollower(Actor *bandMember);
TaskStack *createFollowerTask(Actor *bandMember);
uint8 evaluateFollowerNeeds(Actor *follower);
public:
// Knowledge-related member functions
bool addKnowledge(uint16 kID);
bool removeKnowledge(uint16 kID);
void clearKnowledge();
void useKnowledge(scriptCallFrame &scf);
bool canSenseProtaganistIndirectly(SenseInfo &info, int16 range);
bool canSenseSpecificActorIndirectly(
SenseInfo &info,
int16 range,
Actor *a);
bool canSenseSpecificObjectIndirectly(
SenseInfo &info,
int16 range,
ObjectID obj);
bool canSenseActorPropertyIndirectly(
SenseInfo &info,
int16 range,
ActorPropertyID prop);
bool canSenseObjectPropertyIndirectly(
SenseInfo &info,
int16 range,
ObjectPropertyID prop);
// Take mana from actor's mana pool (if possible)
bool takeMana(ActorManaID i, int8 dMana);
bool hasMana(ActorManaID i, int8 dMana);
uint32 getBaseEnchantmentEffects();
uint16 getBaseResistance();
uint16 getBaseImmunity();
uint16 getBaseRecovery();
bool resists(effectResistTypes r) {
return _effectiveResistance & (1 << r);
}
bool isImmuneTo(effectImmuneTypes r) {
return _effectiveImmunity & (1 << r);
}
bool hasEffect(effectOthersTypes e) {
return (_enchantmentFlags & (1 << e)) != 0;
}
void setResist(effectResistTypes r, bool on) {
_effectiveResistance = on ?
_effectiveResistance | (1 << r) :
_effectiveResistance & ~(1 << r);
}
void setImmune(effectImmuneTypes r, bool on) {
_effectiveImmunity = on ?
_effectiveImmunity | (1 << r) :
_effectiveImmunity & ~(1 << r);
}
void setEffect(effectOthersTypes e, bool on) {
_enchantmentFlags = on ?
_enchantmentFlags | (1 << e) :
_enchantmentFlags & ~(1 << e);
}
bool makeSavingThrow();
void setFightStance(bool val) {
if (val)
_flags |= kAFFightStance;
else
_flags &= ~kAFFightStance;
}
};
inline bool isPlayerActor(Actor *a) {
return a->_disposition >= kDispositionPlayer;
}
inline bool isPlayerActor(ObjectID obj) {
return isActor(obj)
&& isPlayerActor((Actor *)GameObject::objectAddress(obj));
}
inline bool isEnemy(Actor *a) {
return !a->isDead() && a->_disposition == kDispositionEnemy;
}
inline bool isEnemy(ObjectID obj) {
return isActor(obj)
&& isEnemy((Actor *)GameObject::objectAddress(obj));
}
void updateActorStates();
void pauseActorStates();
void resumeActorStates();
void setCombatBehavior(bool enabled);
// Determine if the actors are currently initialized
bool areActorsInitialized();
void clearEnchantments(Actor *a);
void addEnchantment(Actor *a, uint16 enchantmentID);
/* ============================================================================ *
Actor factions table
* ============================================================================ */
enum factionTallyTypes {
kFactionNumKills = 0, // # of times faction member killed by PC
kFactionNumThefts, // # of times PC steals from faction member
kFactionNumFavors, // accumulated by SAGA script.
kFactionNumColumns
};
// Get the attitude a particular faction has for a char.
int16 GetFactionTally(int faction, enum factionTallyTypes act);
// Increment / Decrement faction attitude
// Whenever an actor is killed, call:
// AddFactionAttitude( actor.faction, kFactionNumKills, 1 );
// Whenever an actor is robbed, call:
// AddFactionAttitude( actor.faction, kFactionNumThefts, 1 );
int16 AddFactionTally(int faction, enum factionTallyTypes act, int amt);
// Initialize the faction tally table
void initFactionTallies();
// Save the faction tallies to a save file
void saveFactionTallies(Common::OutSaveFile *outS);
// Load the faction tallies from a save file
void loadFactionTallies(Common::InSaveFile *in);
// Cleanup the faction tally table
inline void cleanupFactionTallies() { /* Nothing to do */ }
class ActorManager {
public:
enum {
kEvalRate = 8,
kEvalRateMask = kEvalRate - 1
};
Common::Array<Actor *> _actorList;
int32 _updatesViaScript;
int32 _baseActorIndex;
int16 _factionTable[kMaxFactions][kFactionNumColumns];
bool _actorStatesPaused;
bool _combatBehaviorEnabled;
ActorManager() {
_updatesViaScript = 0;
_baseActorIndex = kEvalRateMask;
memset(_factionTable, 0, sizeof(_factionTable));
_actorStatesPaused = false;
_combatBehaviorEnabled = false;
}
};
} // end of namespace Saga2
#endif
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