Fixed bug with VN scrolling

src/dawn/asset/assets/TrueTypeAsset.cpp

@@ -12,7 +12,38 @@ TrueTypeAsset::TrueTypeAsset(AssetManager *assMan, std::string name) :
   Asset(assMan, name),
   loader(name + ".truetype")
 {
+  this->locks.onLockRemoved = [&](usagelockid_t id){
+    auto texture = this->textureByLock[id];
 
+    assertNotNull(texture);
+
+    std::vector<usagelockid_t> &lbt = this->locksByTexture[texture];
+    auto it0 = std::find(lbt.begin(), lbt.end(), id);
+    assertTrue(it0 != lbt.end());
+    lbt.erase(it0);
+
+    auto it1 = this->textureByLock.find(id);
+    assertTrue(it1 != this->textureByLock.end());
+    this->textureByLock.erase(it1);
+
+    if(lbt.empty()) {      
+      auto it2 = locksByTexture.find(texture);
+      assertTrue(it2 != locksByTexture.end());
+      locksByTexture.erase(it2);
+      
+      auto it3 = textureByStyle.begin();
+      while(it3 != textureByStyle.end()) {
+        if(it3->second == texture) it3 = textureByStyle.erase(it3);
+        ++it3;
+      }
+
+      auto it4 = std::find(textures.begin(), textures.end(), texture);
+      assertTrue(it4 != textures.end());
+      textures.erase(it4);
+
+      delete texture;
+    }
+  };
 }
 
 void TrueTypeAsset::updateSync() {
@@ -161,8 +192,9 @@ usagelockid_t TrueTypeAsset::lock(struct TrueTypeFaceTextureStyle style) {
     texture = it->second;
   }
 
-  auto lock = texture->locks.createLock();
+  auto lock = this->locks.createLock();
   this->textureByLock[lock] = texture;
+  this->locksByTexture[texture].push_back(lock);
   return lock;
 }
 
@@ -173,10 +205,7 @@ TrueTypeFaceTexture * TrueTypeAsset::getTexture(usagelockid_t id) {
 }
 
 void TrueTypeAsset::unlock(usagelockid_t id) {
-  auto it = this->textureByLock.find(id);
+  this->locks.removeLock(id);
-  assertTrue(it != this->textureByLock.end());
-  it->second->locks.removeLock(id);
-  this->textureByLock.erase(it);
 }
 
 TrueTypeAsset::~TrueTypeAsset() {

src/dawn/asset/assets/TrueTypeAsset.hpp

@@ -8,6 +8,7 @@
 #include "../AssetLoader.hpp"
 #include "util/flag.hpp"
 #include "display/font/truetype/TrueTypeFaceTexture.hpp"
+#include "util/UsageLock.hpp"
 
 namespace Dawn {
   enum TrueTypeAssetState {
@@ -30,6 +31,7 @@ namespace Dawn {
 
   class TrueTypeAsset : public Asset {
     protected:
+      UsageLock locks;
       AssetLoader loader;
       FT_Library fontLibrary;
       enum TrueTypeAssetState state = TRUE_TYPE_ASSET_STATE_INITIAL;
@@ -37,6 +39,7 @@ namespace Dawn {
       std::vector<TrueTypeFaceTexture*> textures;
       std::map<usagelockid_t, TrueTypeFaceTexture*> textureByLock;
       std::map<struct TrueTypeFaceTextureStyle, TrueTypeFaceTexture*> textureByStyle;
+      std::map<TrueTypeFaceTexture*, std::vector<usagelockid_t>> locksByTexture;
 
     public:
       TrueTypeAsset(AssetManager *assMan, std::string name);

src/dawn/display/font/truetype/TrueTypeFaceTexture.cpp

@@ -15,10 +15,6 @@ TrueTypeFaceTexture::TrueTypeFaceTexture(
 
   this->face = face;
   this->style = style;
-  
-  this->locks.onEmpty = [&]() {
-    assertUnreachable();
-  };
 
   // Set freetype font size prior to baking.
   if(FT_Set_Pixel_Sizes(face, 0, style.fontSize)) {

src/dawn/display/font/truetype/TrueTypeFaceTexture.hpp

@@ -7,7 +7,6 @@
 #include "display/font/truetype/TrueTypeShared.hpp"
 #include "util/mathutils.hpp"
 #include "display/Texture.hpp"
-#include "util/UsageLock.hpp"
 
 namespace Dawn {
   class TrueTypeAsset;
@@ -34,7 +33,6 @@ namespace Dawn {
       FT_Face face;
       std::map<FT_ULong, struct TrueTypeCharacter> characterData;
       struct TrueTypeFaceTextureStyle style;
-      UsageLock locks;
       Texture texture;
 
       /**

src/dawn/games/vn/components/VNTextboxScroller.cpp

@@ -23,6 +23,7 @@ void VNTextboxScroller::onStart() {
     this->timeCharacter = 0;
     this->label->quadStart = 0;
     this->label->quadCount = 0;
+    this->label->textOffset = glm::vec2();
     this->readyToClose = false;
   };
   x();

src/dawnshared/util/UsageLock.cpp

@@ -7,13 +7,18 @@
 
 using namespace Dawn;
 
-UsageLock::UsageLock() {
+UsageLock::UsageLock() : UsageLock(&this->internalPool) {
+}
+
+UsageLock::UsageLock(usagelockid_t *lockPool) {
+  assertNotNull(lockPool);
+  this->pool = lockPool;
   this->onEmpty = []() {};
   this->onFirstLock = []() {};
 }
 
 usagelockid_t UsageLock::createLock() {
-  usagelockid_t lock = this->nextLock++;
+  usagelockid_t lock = (*this->pool)++;
   this->locks.push_back(lock);
   if(this->locks.size() == 1) this->onFirstLock();
   return lock;
@@ -23,5 +28,6 @@ void UsageLock::removeLock(usagelockid_t lock) {
   auto it = std::find(this->locks.begin(), this->locks.end(), lock);
   if(it == this->locks.end()) return;
   this->locks.erase(it);
+  this->onLockRemoved(lock);
   if(this->locks.size() == 0) this->onEmpty();
 }

src/dawnshared/util/UsageLock.hpp

@@ -10,18 +10,27 @@ namespace Dawn {
 
   class UsageLock {
     protected:
-      usagelockid_t nextLock = 0;
+      usagelockid_t internalPool = 0;
+      usagelockid_t *pool = nullptr;
       std::vector<usagelockid_t> locks;
 
     public:
       std::function<void()> onEmpty;
       std::function<void()> onFirstLock;
+      std::function<void(usagelockid_t)> onLockRemoved;
 
       /**
        * Construct a new usage lock object.
        */
       UsageLock();
 
+      /**
+       * Construct a new Usage Lock object
+       * 
+       * @param lockPool Pool that will be used to create locks.
+       */
+      UsageLock(usagelockid_t *lockPool);
+
       /**
        * Creates a new lock.
        *