More walk changes and creature events

Improve walking, no more random cancelWalks
Add 3 new creatures events onAppear/onDisappear/onWalk
Add algorithm that calculates walk ping
Fix paralyze animation while walking

src/otclient/creature.cpp

@@ -28,6 +28,7 @@
 #include "item.h"
 #include "game.h"
 #include "effect.h"
+#include "luavaluecasts.h"
 
 #include <framework/graphics/graphics.h>
 #include <framework/core/eventdispatcher.h>
@@ -46,12 +47,12 @@ Creature::Creature() : Thing()
     m_speed = 200;
     m_direction = Otc::South;
     m_walkAnimationPhase = 0;
-    m_walkInterval = 0;
+    m_walkedPixels = 0;
-    m_walkAnimationInterval = 0;
     m_walkTurnDirection = Otc::InvalidDirection;
     m_skull = Otc::SkullNone;
     m_shield = Otc::ShieldNone;
     m_emblem = Otc::EmblemNone;
+    m_lastStepDirection = Otc::InvalidDirection;
     m_nameCache.setFont(g_fonts.getFont("verdana-11px-rounded"));
     m_nameCache.setAlign(Fw::AlignTopCenter);
     m_footStep = 0;
@@ -255,34 +256,17 @@ void Creature::walk(const Position& oldPos, const Position& newPos)
         return;
 
     // get walk direction
-    Otc::Direction direction = oldPos.getDirectionFromPosition(newPos);
+    m_lastStepDirection = oldPos.getDirectionFromPosition(newPos);
 
     // set current walking direction
-    setDirection(direction);
+    setDirection(m_lastStepDirection);
 
     // starts counting walk
     m_walking = true;
     m_walkTimer.restart();
+    m_walkedPixels = 0;
 
-    // calculates walk interval
+    // no direction need to be changed when the walk ends
-    int groundSpeed = 0;
-    TilePtr tile = g_map.getTile(newPos);
-    if(tile)
-        groundSpeed = tile->getGroundSpeed();
-
-    float interval = 1000;
-    if(groundSpeed > 0 && m_speed > 0)
-        interval = (1000.0f * groundSpeed) / m_speed;
-    interval = std::floor(interval / g_game.getServerBeat()) * g_game.getServerBeat();
-
-    m_walkAnimationInterval = interval;
-    m_walkInterval = interval;
-
-    // diagonal walking lasts 3 times more.
-    if(direction == Otc::NorthWest || direction == Otc::NorthEast || direction == Otc::SouthWest || direction == Otc::SouthEast)
-        m_walkInterval *= 3;
-
-    // no direction needs to be changed when the walk ends
     m_walkTurnDirection = Otc::InvalidDirection;
 
     // starts updating walk
@@ -302,9 +286,50 @@ void Creature::stopWalk()
     terminateWalk();
 }
 
-void Creature::onMove(const Position& newPos, const Position& oldPos)
+void Creature::onAppear()
 {
-    walk(oldPos, newPos);
+    // cancel any disappear event
+    if(m_disappearEvent) {
+        m_disappearEvent->cancel();
+        m_disappearEvent = nullptr;
+    }
+
+    // creature appeared the first time or wasn't seen for a long time
+    if(m_removed) {
+        m_removed = false;
+        callLuaField("onAppear");
+    // walk
+    } else if(m_oldPosition != m_position && m_oldPosition.isInRange(m_position,1,1)) {
+        walk(m_oldPosition, m_position);
+        callLuaField("onWalk", m_oldPosition, m_position);
+    // teleport
+    } else if(m_oldPosition != m_position) {
+        callLuaField("onDisappear");
+        callLuaField("onAppear");
+    } // else turn
+}
+
+void Creature::onDisappear()
+{
+    if(m_disappearEvent)
+        m_disappearEvent->cancel();
+
+    m_oldPosition = m_position;
+
+    // a pair onDisappear and onAppear events are fired even when creatures walks or turns,
+    // so we must filter
+    auto self = static_self_cast<Creature>();
+    m_disappearEvent = g_dispatcher.addEvent([self] {
+        self->m_removed = true;
+        self->stopWalk();
+
+        self->callLuaField("onDisappear");
+
+        // invalidate this creature position
+        self->m_position = Position();
+        self->m_oldPosition = Position();
+        self->m_disappearEvent = nullptr;
+    });
 }
 
 void Creature::updateWalkAnimation(int totalPixelsWalked)
@@ -316,7 +341,7 @@ void Creature::updateWalkAnimation(int totalPixelsWalked)
     int footAnimPhases = getAnimationPhases() - 1;
     if(totalPixelsWalked == 32 || footAnimPhases == 0)
         m_walkAnimationPhase = 0;
-    else if(m_footStepDrawn && m_footTimer.ticksElapsed() >= m_walkAnimationInterval / 4 ) {
+    else if(m_footStepDrawn && m_footTimer.ticksElapsed() >= getStepDuration() / 4 ) {
         m_footStep++;
         m_walkAnimationPhase = 1 + (m_footStep % footAnimPhases);
         m_footStepDrawn = false;
@@ -380,22 +405,26 @@ void Creature::nextWalkUpdate()
         m_walkUpdateEvent = g_dispatcher.scheduleEvent([self] {
             self->m_walkUpdateEvent = nullptr;
             self->nextWalkUpdate();
-        }, m_walkAnimationInterval / 32);
+        }, getStepDuration() / 32);
     }
 }
 
 void Creature::updateWalk()
 {
-    float walkTicksPerPixel = m_walkAnimationInterval / 32;
+    int stepDuration = getStepDuration();
+    float walkTicksPerPixel = stepDuration / 32;
     int totalPixelsWalked = std::min(m_walkTimer.ticksElapsed() / walkTicksPerPixel, 32.0f);
 
+    // needed for paralyze effect
+    m_walkedPixels = std::max(m_walkedPixels, totalPixelsWalked);
+
     // update walk animation and offsets
     updateWalkAnimation(totalPixelsWalked);
-    updateWalkOffset(totalPixelsWalked);
+    updateWalkOffset(m_walkedPixels);
     updateWalkingTile();
 
     // terminate walk
-    if(m_walking && m_walkTimer.ticksElapsed() >= m_walkInterval)
+    if(m_walking && m_walkTimer.ticksElapsed() >= stepDuration)
         terminateWalk();
 }
 
@@ -419,6 +448,7 @@ void Creature::terminateWalk()
     }
 
     m_walking = false;
+    m_walkedPixels = 0;
 }
 
 void Creature::setName(const std::string& name)
@@ -472,6 +502,15 @@ void Creature::setOutfit(const Outfit& outfit)
     m_outfit = outfit;
 }
 
+void Creature::setSpeed(uint16 speed)
+{
+    m_speed = speed;
+
+    // speed can change while walking (utani hur, paralyze, etc..)
+    if(m_walking)
+        nextWalkUpdate();
+}
+
 void Creature::setSkull(uint8 skull)
 {
     m_skull = skull;
@@ -556,6 +595,27 @@ Point Creature::getDrawOffset()
     return drawOffset;
 }
 
+int Creature::getStepDuration()
+{
+    int groundSpeed = 0;
+    const TilePtr& tile = getTile();
+    if(tile)
+        groundSpeed = tile->getGroundSpeed();
+
+    int interval = 1000;
+    if(groundSpeed > 0 && m_speed > 0)
+        interval = (1000 * groundSpeed) / m_speed;
+
+    if(g_game.getClientVersion() >= 900)
+        interval = (interval / g_game.getServerBeat()) * g_game.getServerBeat();
+
+    if(m_lastStepDirection == Otc::NorthWest || m_lastStepDirection == Otc::NorthEast ||
+       m_lastStepDirection == Otc::SouthWest || m_lastStepDirection == Otc::SouthEast)
+        interval *= 3;
+
+    return interval;
+}
+
 const ThingTypePtr& Creature::getThingType()
 {
     return g_things.getThingType(m_outfit.getId(), m_outfit.getCategory());

src/otclient/creature.h

@@ -55,7 +55,7 @@ public:
     void setDirection(Otc::Direction direction);
     void setOutfit(const Outfit& outfit);
     void setLight(const Light& light) { m_light = light; }
-    void setSpeed(uint16 speed) { m_speed = speed; }
+    void setSpeed(uint16 speed);
     void setSkull(uint8 skull);
     void setShield(uint8 shield);
     void setEmblem(uint8 emblem);
@@ -63,7 +63,6 @@ public:
     void setShieldTexture(const std::string& filename, bool blink);
     void setEmblemTexture(const std::string& filename);
     void setPassable(bool passable) { m_passable = passable; }
-    void setRemoved(bool removed) { m_removed = removed; }
 
     void addTimedSquare(uint8 color);
     void removeTimedSquare() { m_showTimedSquare = false; }
@@ -83,6 +82,7 @@ public:
     uint8 getEmblem() { return m_emblem; }
     bool isPassable() { return m_passable; }
     Point getDrawOffset();
+    int getStepDuration();
     Point getWalkOffset() { return m_walkOffset; }
 
     void updateShield();
@@ -100,8 +100,8 @@ public:
     const ThingTypePtr& getThingType();
     ThingType *rawGetThingType();
 
-protected:
+    virtual void onAppear();
-    virtual void onMove(const Position& newPos, const Position& oldPos);
+    virtual void onDisappear();
 
 protected:
     virtual void updateWalkAnimation(int totalPixelsWalked);
@@ -131,23 +131,25 @@ protected:
     Color m_staticSquareColor;
     stdext::boolean<false> m_showTimedSquare;
     stdext::boolean<false> m_showStaticSquare;
-    stdext::boolean<false> m_removed;
+    stdext::boolean<true> m_removed;
     CachedText m_nameCache;
     Color m_informationColor;
 
     // walk related
     int m_walkAnimationPhase;
+    int m_walkedPixels;
     uint m_footStep;
     Timer m_walkTimer;
     Timer m_footTimer;
     TilePtr m_walkingTile;
-    int m_walkInterval;
-    int m_walkAnimationInterval;
     stdext::boolean<false> m_walking;
     stdext::boolean<false> m_footStepDrawn;
     ScheduledEventPtr m_walkUpdateEvent;
+    EventPtr m_disappearEvent;
     Point m_walkOffset;
     Otc::Direction m_walkTurnDirection;
+    Otc::Direction m_lastStepDirection;
+    Position m_oldPosition;
 };
 
 // @bindclass

src/otclient/game.cpp

@@ -247,26 +247,6 @@ void Game::processInventoryChange(int slot, const ItemPtr& item)
     m_localPlayer->setInventoryItem((Otc::InventorySlot)slot, item);
 }
 
-void Game::processCreatureMove(const CreaturePtr& creature, const Position& oldPos, const Position& newPos)
-{
-    // animate walk
-    creature->walk(oldPos, newPos);
-
-    g_lua.callGlobalField("g_game", "onCreatureMove", creature, oldPos, newPos);
-}
-
-void Game::processCreatureTeleport(const CreaturePtr& creature)
-{
-    // stop walking on creature teleports
-    creature->stopWalk();
-
-    // locks the walk for a while when teleporting
-    if(creature == m_localPlayer)
-        m_localPlayer->lockWalk();
-
-    g_lua.callGlobalField("g_game", "onCreatureTeleport", creature);
-}
-
 void Game::processChannelList(const std::vector<std::tuple<int, std::string> >& channelList)
 {
     g_lua.callGlobalField("g_game", "onChannelList", channelList);
@@ -552,9 +532,11 @@ void Game::autoWalk(const std::vector<Otc::Direction>& dirs)
         cancelFollow();
 
     Otc::Direction direction = dirs.front();
-    TilePtr toTile = g_map.getTile(m_localPlayer->getPosition().translatedToDirection(direction));
+    if(m_localPlayer->canWalk(direction)) {
-    if(toTile && toTile->isWalkable() && !m_localPlayer->isAutoWalking())
+        TilePtr toTile = g_map.getTile(m_localPlayer->getPosition().translatedToDirection(direction));
-        m_localPlayer->preWalk(direction);
+        if(toTile && toTile->isWalkable() && !m_localPlayer->isAutoWalking())
+            m_localPlayer->preWalk(direction);
+    }
 
     m_protocolGame->sendAutoWalk(dirs);
 

src/otclient/game.h

@@ -65,8 +65,6 @@ protected:
 
     void processGMActions(const std::vector<uint8>& actions);
     void processInventoryChange(int slot, const ItemPtr& item);
-    void processCreatureMove(const CreaturePtr& creature, const Position& oldPos, const Position& newPos);
-    void processCreatureTeleport(const CreaturePtr& creature);
     void processAttackCancel(uint seq);
     void processWalkCancel(Otc::Direction direction);
 

src/otclient/localplayer.cpp

@@ -29,7 +29,6 @@
 LocalPlayer::LocalPlayer()
 {
     m_preWalking = false;
-    m_walkLocked = false;
     m_lastPrewalkDone = true;
     m_autoWalking = false;
     m_known = false;
@@ -37,7 +36,7 @@ LocalPlayer::LocalPlayer()
 
     m_states = 0;
     m_vocation = 0;
-    m_walkLockInterval = 0;
+    m_walkLockExpiration = 0;
 
     m_skillsLevel.fill(-1);
     m_skillsLevelPercent.fill(-1);
@@ -58,33 +57,29 @@ LocalPlayer::LocalPlayer()
 
 void LocalPlayer::lockWalk(int millis)
 {
-    // prevents double locks
+    m_walkLockExpiration = std::max(m_walkLockExpiration, (ticks_t) g_clock.millis() + millis);
-    if(m_walkLocked)
-        return;
-
-    m_walkLocked = true;
-    m_walkLockTimer.restart();
-    m_walkLockInterval = millis;
 }
 
 bool LocalPlayer::canWalk(Otc::Direction direction)
 {
-    // prewalk has a timeout, because for some reason that I don't know yet the server sometimes doesn't answer the prewalk
+    // cannot walk while locked
-    bool prewalkTimeouted = m_walking && m_preWalking && m_walkTimer.ticksElapsed() >= m_walkInterval + PREWALK_TIMEOUT;
+    if(m_walkLockExpiration != 0 && g_clock.millis() < m_walkLockExpiration)
+        return false;
 
-    // cannot walk while already walking
+    // last walk is not done yet
-    if(m_walking && !prewalkTimeouted)
+    if(m_walkTimer.ticksElapsed() < getStepDuration())
         return false;
 
+    // prewalk has a timeout, because for some reason that I don't know yet the server sometimes doesn't answer the prewalk
+    bool prewalkTimeouted = m_walking && m_preWalking && m_walkTimer.ticksElapsed() >= getStepDuration() + PREWALK_TIMEOUT;
+
     // avoid doing more walks than wanted when receiving a lot of walks from server
     if(!m_lastPrewalkDone && m_preWalking && !prewalkTimeouted)
         return false;
 
-    // cannot walk while locked
+    // cannot walk while already walking
-    if(m_walkLocked && m_walkLockTimer.ticksElapsed() <= m_walkLockInterval)
+    if(m_walking && !prewalkTimeouted)
         return false;
-    else
-        m_walkLocked = false;
 
     return true;
 }
@@ -93,6 +88,16 @@ void LocalPlayer::walk(const Position& oldPos, const Position& newPos)
 {
     // a prewalk was going on
     if(m_preWalking) {
+        if(m_waitingWalkPong) {
+            if(newPos == m_lastPrewalkDestionation) {
+                m_lastWalkPings.push_back(m_walkPingTimer.ticksElapsed());
+                if(m_lastWalkPings.size() > 10)
+                    m_lastWalkPings.pop_front();
+            }
+
+            m_waitingWalkPong = false;
+        }
+
         // switch to normal walking
         m_preWalking = false;
         m_lastPrewalkDone = true;
@@ -115,13 +120,18 @@ void LocalPlayer::walk(const Position& oldPos, const Position& newPos)
 
 void LocalPlayer::preWalk(Otc::Direction direction)
 {
-    // start walking to direction
     Position newPos = m_position.translatedToDirection(direction);
+
+    // avoid reanimating prewalks
+    if(m_preWalking && m_lastPrewalkDestionation == newPos)
+        return;
+
     m_preWalking = true;
 
     if(m_autoWalkEndEvent)
         m_autoWalkEndEvent->cancel();
 
+    // start walking to direction
     m_lastPrewalkDone = false;
     m_lastPrewalkDestionation = newPos;
     Creature::walk(m_position, newPos);
@@ -134,6 +144,7 @@ void LocalPlayer::cancelWalk(Otc::Direction direction)
         stopWalk();
 
     m_lastPrewalkDone = true;
+    m_waitingWalkPong = false;
 
     // turn to the cancel direction
     if(direction != Otc::InvalidDirection)
@@ -167,7 +178,8 @@ void LocalPlayer::updateWalkOffset(int totalPixelsWalked)
 
 void LocalPlayer::updateWalk()
 {
-    float walkTicksPerPixel = m_walkAnimationInterval / 32.0f;
+    int stepDuration = getStepDuration();
+    float walkTicksPerPixel = stepDuration / 32.0f;
     int totalPixelsWalked = std::min(m_walkTimer.ticksElapsed() / walkTicksPerPixel, 32.0f);
 
     // update walk animation and offsets
@@ -176,7 +188,7 @@ void LocalPlayer::updateWalk()
     updateWalkingTile();
 
     // terminate walk only when client and server side walk are complated
-    if(m_walking && !m_preWalking && m_walkTimer.ticksElapsed() >= m_walkInterval)
+    if(m_walking && !m_preWalking && m_walkTimer.ticksElapsed() >= stepDuration)
         terminateWalk();
 }
 
@@ -196,6 +208,15 @@ void LocalPlayer::terminateWalk()
     }
 }
 
+void LocalPlayer::onAppear()
+{
+    Creature::onAppear();
+
+    // on teleports lock the walk
+    if(!m_oldPosition.isInRange(m_position,1,1))
+        lockWalk();
+}
+
 void LocalPlayer::setStates(int states)
 {
     if(m_states != states) {
@@ -351,3 +372,14 @@ void LocalPlayer::setPremium(bool premium)
         callLuaField("onPremiumChange", premium);
     }
 }
+
+double LocalPlayer::getWalkPing()
+{
+    if(m_lastWalkPings.empty())
+        return 9999;
+
+    double sum = 0;
+    for(int p : m_lastWalkPings)
+        sum += p;
+    return sum / (double)m_lastWalkPings.size();
+}

src/otclient/localplayer.h

@@ -35,7 +35,7 @@ class LocalPlayer : public Player
 public:
     LocalPlayer();
 
-    void unlockWalk() { m_walkLocked = false; }
+    void unlockWalk() { m_walkLockExpiration = 0; }
     void lockWalk(int millis = 250);
     bool canWalk(Otc::Direction direction);
 
@@ -58,6 +58,7 @@ public:
     int getSkillLevel(Otc::Skill skill) { return m_skillsLevel[skill]; }
     int getSkillLevelPercent(Otc::Skill skill) { return m_skillsLevelPercent[skill]; }
     int getVocation() { return m_vocation; }
+    double getWalkPing();
     double getHealth() { return m_health; }
     double getMaxHealth() { return m_maxHealth; }
     double getFreeCapacity() { return m_freeCapacity; }
@@ -80,6 +81,8 @@ public:
     LocalPlayerPtr asLocalPlayer() { return static_self_cast<LocalPlayer>(); }
     bool isLocalPlayer() { return true; }
 
+    virtual void onAppear();
+
 protected:
     void walk(const Position& oldPos, const Position& newPos);
     void preWalk(Otc::Direction direction);
@@ -97,13 +100,14 @@ private:
     // walk related
     bool m_preWalking;
     bool m_lastPrewalkDone;
-    bool m_walkLocked;
     bool m_autoWalking;
     bool m_premium;
     Position m_lastPrewalkDestionation;
-    Timer m_walkLockTimer;
     ItemPtr m_inventoryItems[Otc::LastInventorySlot];
     ScheduledEventPtr m_autoWalkEndEvent;
+    stdext::boolean<false> m_waitingWalkPong;
+    Timer m_walkPingTimer;
+    std::deque<int> m_lastWalkPings;
 
     std::array<int, Otc::LastSkill> m_skillsLevel;
     std::array<int, Otc::LastSkill> m_skillsLevelPercent;
@@ -111,7 +115,7 @@ private:
     bool m_known;
     int m_states;
     int m_vocation;
-    int m_walkLockInterval;
+    ticks_t m_walkLockExpiration;
 
     double m_health;
     double m_maxHealth;

src/otclient/map.cpp

@@ -78,7 +78,6 @@ void Map::cleanDynamicThings()
     for(const auto& pair : m_knownCreatures) {
         const CreaturePtr& creature = pair.second;
         removeThing(creature);
-        creature->setRemoved(true);
     }
     m_knownCreatures.clear();
 
@@ -99,50 +98,35 @@ void Map::addThing(const ThingPtr& thing, const Position& pos, int stackPos)
     if(!thing)
         return;
 
-    TilePtr tile = getOrCreateTile(pos);
-
-    Position oldPos = thing->getPosition();
-
     if(thing->isItem() || thing->isCreature() || thing->isEffect()) {
+        const TilePtr& tile = getOrCreateTile(pos);
         tile->addThing(thing, stackPos);
-    } else if(thing->isMissile()) {
+    } else {
-        m_floorMissiles[pos.z].push_back(thing->static_self_cast<Missile>());
+        if(thing->isMissile()) {
-    } else if(thing->isAnimatedText()) {
+            m_floorMissiles[pos.z].push_back(thing->static_self_cast<Missile>());
-        m_animatedTexts.push_back(thing->static_self_cast<AnimatedText>());
+            thing->onAppear();
-    } else if(thing->isStaticText()) {
+        } else if(thing->isAnimatedText()) {
-        StaticTextPtr staticText = thing->static_self_cast<StaticText>();
+            AnimatedTextPtr animatedText = thing->static_self_cast<AnimatedText>();
-        bool mustAdd = true;
+            m_animatedTexts.push_back(animatedText);
-        for(auto it = m_staticTexts.begin(), end = m_staticTexts.end(); it != end; ++it) {
+        } else if(thing->isStaticText()) {
-            StaticTextPtr cStaticText = *it;
+            StaticTextPtr staticText = thing->static_self_cast<StaticText>();
-            if(cStaticText->getPosition() == pos) {
+            bool mustAdd = true;
+            for(auto other : m_staticTexts) {
                 // try to combine messages
-                if(cStaticText->addMessage(staticText->getName(), staticText->getMessageMode(), staticText->getFirstMessage())) {
+                if(other->getPosition() == pos && other->addMessage(staticText->getName(), staticText->getMessageMode(), staticText->getFirstMessage())) {
                     mustAdd = false;
                     break;
-                } else {
-                    // must add another message and rearrenge current
                 }
             }
 
+            if(mustAdd) {
+                m_staticTexts.push_back(staticText);
+                staticText->onAppear();
+            }
         }
 
-        if(mustAdd)
+        thing->setPosition(pos);
-            m_staticTexts.push_back(staticText);
-    }
-
-    if(!thing->isCreature())
         thing->onAppear();
-
-    thing->setPosition(pos);
-
-    if(thing->isCreature()) {
-        CreaturePtr creature = thing->static_self_cast<Creature>();
-        if(oldPos != pos) {
-            if(oldPos.isInRange(pos,1,1))
-                g_game.processCreatureMove(creature, oldPos, pos);
-            else
-                g_game.processCreatureTeleport(creature);
-        }
     }
 
     notificateTileUpdateToMapViews(pos);
@@ -289,9 +273,7 @@ void Map::removeCreatureById(uint32 id)
 
     auto it = m_knownCreatures.find(id);
     if(it != m_knownCreatures.end())
-        it->second->setRemoved(true);
+        m_knownCreatures.erase(it);
-
-    m_knownCreatures.erase(it);
 }
 
 void Map::setCentralPosition(const Position& centralPosition)
@@ -318,12 +300,10 @@ void Map::setCentralPosition(const Position& centralPosition)
 
         Position oldPos = localPlayer->getPosition();
         Position pos = m_centralPosition;
-        localPlayer->setPosition(pos);
         if(oldPos != pos) {
-            if(oldPos.isInRange(pos,1,1))
+            localPlayer->onDisappear();
-                g_game.processCreatureMove(localPlayer, oldPos, pos);
+            localPlayer->setPosition(pos);
-            else
+            localPlayer->onAppear();
-                g_game.processCreatureTeleport(localPlayer);
         }
     });
 

src/otclient/protocolgameparse.cpp

@@ -506,10 +506,6 @@ void ProtocolGame::parseCreatureMove(const InputMessagePtr& msg)
 
     g_map.removeThing(thing);
     g_map.addThing(thing, newPos, stackPos);
-
-    //CreaturePtr creature = thing->static_self_cast<Creature>();
-    //Position oldPos = thing->getPosition();
-    //creature->onMove(newPos, oldPos);
 }
 
 void ProtocolGame::parseOpenContainer(const InputMessagePtr& msg)

src/otclient/thing.cpp

@@ -35,6 +35,9 @@ Thing::Thing() :
 
 void Thing::setPosition(const Position& position)
 {
+    if(m_position == position)
+        return;
+
     Position oldPos = m_position;
     m_position = position;
     onPositionChange(position, oldPos);

src/otclient/thing.h

@@ -118,13 +118,11 @@ public:
     bool isMarketable() { return rawGetThingType()->isMarketable(); }
     MarketData getMarketData() { return rawGetThingType()->getMarketData(); }
 
-protected:
     virtual void onPositionChange(const Position& newPos, const Position& oldPos) { }
     virtual void onAppear() { }
     virtual void onDisappear() { }
 
-    friend class Map;
+protected:
-
     Position m_position;
     uint16 m_datId;
 };

src/otclient/tile.cpp

@@ -101,8 +101,6 @@ void Tile::draw(const Point& dest, float scaleFactor, int drawFlags)
     if(drawFlags & Otc::DrawCreatures) {
         if(animate) {
             for(const CreaturePtr& creature : m_walkingCreatures) {
-                if(creature->isRemoved())
-                    continue;
                 creature->draw(Point(dest.x + ((creature->getPosition().x - m_position.x)*Otc::TILE_PIXELS - m_drawElevation)*scaleFactor,
                                      dest.y + ((creature->getPosition().y - m_position.y)*Otc::TILE_PIXELS - m_drawElevation)*scaleFactor), scaleFactor, animate);
 
@@ -159,42 +157,44 @@ void Tile::addThing(const ThingPtr& thing, int stackPos)
 
     if(thing->isEffect()) {
         m_effects.push_back(thing->static_self_cast<Effect>());
-        return;
+    } else {
-    }
+        // the items stackpos follows this order:
-
+        // 0 - ground
-    // the items stackpos follows this order:
+        // 1 - ground borders
-    // 0 - ground
+        // 2 - bottom (walls)
-    // 1 - ground borders
+        // 3 - on top (doors)
-    // 2 - bottom (walls)
+        // 4 - creatures, from top to bottom
-    // 3 - on top (doors)
+        // 5 - items, from top to bottom
-    // 4 - creatures, from top to bottom
+        if(stackPos < 0 || stackPos == 255) {
-    // 5 - items, from top to bottom
+            int priority = thing->getStackPriority();
-    if(stackPos < 0 || stackPos == 255) {
+            bool prepend = (stackPos == -2 || priority <= 3);
-        int priority = thing->getStackPriority();
+            for(stackPos = 0; stackPos < (int)m_things.size(); ++stackPos) {
-        bool prepend = (stackPos == -2 || priority <= 3);
+                int otherPriority = m_things[stackPos]->getStackPriority();
-        for(stackPos = 0; stackPos < (int)m_things.size(); ++stackPos) {
+                if((prepend && otherPriority > priority) || (!prepend && otherPriority >= priority))
-            int otherPriority = m_things[stackPos]->getStackPriority();
+                    break;
-            if((prepend && otherPriority > priority) || (!prepend && otherPriority >= priority))
+            }
-                break;
+        } else if(stackPos > (int)m_things.size())
-        }
+            stackPos = m_things.size();
-    } else if(stackPos > (int)m_things.size())
-        stackPos = m_things.size();
 
-    m_things.insert(m_things.begin() + stackPos, thing);
+        m_things.insert(m_things.begin() + stackPos, thing);
 
-    if(m_things.size() > MAX_THINGS)
+        if(m_things.size() > MAX_THINGS)
-        removeThing(m_things[MAX_THINGS]);
+            removeThing(m_things[MAX_THINGS]);
 
-    /*
+        /*
-    // check stack priorities
+        // check stack priorities
-    // this code exists to find stackpos bugs faster
+        // this code exists to find stackpos bugs faster
-    int lastPriority = 0;
+        int lastPriority = 0;
-    for(const ThingPtr& thing : m_things) {
+        for(const ThingPtr& thing : m_things) {
-        int priority = thing->getStackPriority();
+            int priority = thing->getStackPriority();
-        assert(lastPriority <= priority);
+            assert(lastPriority <= priority);
-        lastPriority = priority;
+            lastPriority = priority;
+        }
+        */
     }
-    */
+
+    thing->setPosition(m_position);
+    thing->onAppear();
 }
 
 bool Tile::removeThing(ThingPtr thing)
@@ -219,6 +219,8 @@ bool Tile::removeThing(ThingPtr thing)
         }
     }
 
+    thing->onDisappear();
+
     return removed;
 }