VN Textbox Scroll initial version

src/dawn/display/font/FontMeasure.cpp

@@ -19,7 +19,7 @@ int32_t FontMeasure::getQuadCount() {
   return this->realLength;
 }
 
-float_t FontMeasure::getHeightOfLineCount(int32_t lineCount) {
+float_t FontMeasure::getHeightOfLineCount(size_t lineCount) {
   assertTrue(lineCount > 0);
   return this->lineHeight * lineCount;
 }
@@ -28,13 +28,13 @@ size_t FontMeasure::getLineCount() {
   return this->lines.size();
 }
 
-int32_t FontMeasure::getQuadsOnLine(int32_t line) {
+int32_t FontMeasure::getQuadsOnLine(size_t line) {
   assertTrue(line >= 0);
   assertTrue(line < this->lines.size());
   return this->lines[line].length;
 }
 
-int32_t FontMeasure::getQuadIndexOnLine(int32_t line) {
+int32_t FontMeasure::getQuadIndexOnLine(size_t line) {
   assertTrue(line >= 0);
   assertTrue(line < this->lines.size());
   return this->lines[line].start;

src/dawn/display/font/FontMeasure.hpp

@@ -60,7 +60,7 @@ namespace Dawn {
        * @param line Which line to get the count of quads for.
        * @return Count of quads on that line.
        */
-      int32_t getQuadsOnLine(int32_t line);
+      int32_t getQuadsOnLine(size_t line);
 
       /**
        * Returns the index, of which quad is the first quad on the given line.
@@ -68,7 +68,7 @@ namespace Dawn {
        * @param line Line to get the quad index of.
        * @return The quad index of that line.
        */
-      int32_t getQuadIndexOnLine(int32_t line);
+      int32_t getQuadIndexOnLine(size_t line);
 
       /**
        * Returns the height of the count of lines provided.
@@ -76,7 +76,7 @@ namespace Dawn {
        * @param lineCount Count of lines to get the height of.
        * @return Height of the given count of lines.
        */
-      float_t getHeightOfLineCount(int32_t lineCount);
+      float_t getHeightOfLineCount(size_t lineCount);
 
       /**
        * Returns the count of lines in this string.

src/dawn/games/vn/components/CMakeLists.txt

@@ -7,4 +7,5 @@
 target_sources(${DAWN_TARGET_NAME}
   PRIVATE
     VNManager.cpp
+    VNTextboxScroller.cpp
 )

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

@@ -0,0 +1,110 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "VNTextboxScroller.hpp"
+#include "game/DawnGame.hpp"
+
+using namespace Dawn;
+
+VNTextboxScroller::VNTextboxScroller(SceneItem *item) :
+  SceneItemComponent(item),
+  label(nullptr)
+{
+}
+
+void VNTextboxScroller::onStart() {
+  assertNotNull(label);
+
+  std::function<void()> x = [&]{
+    this->lineCurrent = 0;
+    this->timeCharacter = 0;
+    this->label->startQuad = 0;
+    this->label->quadCount = 0;
+  };
+  x();
+
+  useEvent([&](float_t delta){
+    auto game = this->getGame();
+
+    this->timeCharacter += delta;
+    if(this->hasRevealedAllCurrentCharacters()) {
+      if(this->hasRevealedAllCharacters()) {
+        if(game->inputManager.isPressed(INPUT_BIND_ACCEPT)) {
+          std::cout << "HIDE" << std::endl;
+        }
+      } else {
+        if(game->inputManager.isPressed(INPUT_BIND_ACCEPT)) {
+          this->lineCurrent += this->getCountOfVisibleLines();
+          this->label->startQuad = 0;
+          for(int32_t i = 0; i < this->lineCurrent; i++) {
+            this->label->startQuad += this->label->measure.getQuadsOnLine(i);
+          }
+          this->label->quadCount = 0;
+          this->timeCharacter = 0.0f;
+
+          // this->label.setTransform(
+          //   UI_COMPONENT_ALIGN_STRETCH,
+          //   UI_COMPONENT_ALIGN_STRETCH,
+          //   glm::vec4(
+          //     glm::vec2(
+          //       this->border.getBorderSize().x + this->labelPadding.x,
+          //       this->border.getBorderSize().y + this->labelPadding.y -
+          //       this->label.measure.getHeightOfLineCount(this->lineCurrent)
+          //     ),
+          //     this->border.getBorderSize() + this->labelPadding
+          //   ),
+          //   5.0f
+          // );
+          // this->eventNewPage.invoke();
+        }
+      }
+
+      return;
+    }
+
+    auto lastTimeCharacter = mathFloor<int32_t>(this->timeCharacter);
+    if(game->inputManager.isDown(INPUT_BIND_ACCEPT)) {
+      this->timeCharacter += game->timeManager.delta * VN_TEXTBOX_SPEED_FASTER;
+    } else {
+      this->timeCharacter += game->timeManager.delta * VN_TEXTBOX_SPEED;
+    }
+
+    this->label->quadCount = mathFloor<int32_t>(this->timeCharacter);
+    // this->eventCharacterRevealed.invoke();
+  }, getScene()->eventSceneUpdate);
+}
+
+size_t VNTextboxScroller::getCountOfVisibleLines() {
+  float_t y = this->label->getHeight();
+  size_t i = 1;
+  for(i = this->label->measure.getLineCount(); i > 0; --i) {
+    if(y >= this->label->measure.getHeightOfLineCount(i)) {
+      return i;
+    }
+  }
+  return this->label->measure.getLineCount();
+}
+
+bool_t VNTextboxScroller::hasRevealedAllCurrentCharacters() {
+  int32_t quadsTotal = 0;
+  for(
+    size_t i = this->lineCurrent;
+    i < mathMin<size_t>(
+      this->label->measure.getLineCount(),
+      this->lineCurrent + this->getCountOfVisibleLines()
+    );
+    i++
+  ) {
+    quadsTotal += this->label->measure.getQuadsOnLine(i);
+  }
+  return mathFloor<int32_t>(this->timeCharacter) >= quadsTotal;
+}
+
+bool_t VNTextboxScroller::hasRevealedAllCharacters() {
+  return (
+    this->lineCurrent + this->getCountOfVisibleLines() >=
+    this->label->measure.getLineCount()
+  );
+}

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

@@ -0,0 +1,53 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "scene/SceneItemComponent.hpp"
+#include "scene/components/ui/UILabel.hpp"
+#include "input/InputManager.hpp"
+
+#define VN_TEXTBOX_SPEED 25.0f
+#define VN_TEXTBOX_SPEED_FASTER 40.0f
+
+namespace Dawn {
+  class VNTextboxScroller : public SceneItemComponent {
+    protected:
+
+    public:
+      // @optional
+      StateProperty<UILabel*> label;
+
+      size_t lineCurrent = 0;
+      float_t timeCharacter = 0.0f;
+
+      VNTextboxScroller(SceneItem *item);
+
+      virtual void onStart() override;
+
+      /**
+       * Returns the count of visible lines within the textbox. Mostly used for
+       * when we need to decide how to wrap.
+       * 
+       * @return The count of visible lines.
+       */
+      size_t getCountOfVisibleLines();
+
+      /**
+       * Returns true if all of the characters that can be made visible for the
+       * current textbox size have finished revealing, or false if not.
+       * 
+       * @return True if above statement is met.
+       */
+      bool_t hasRevealedAllCurrentCharacters();
+
+      /**
+       * Returns true only when every character passed previously in setText
+       * has been revealed by scrolling.
+       * 
+       * @return True if above statement is true.
+       */
+      bool_t hasRevealedAllCharacters();
+  };
+}

src/dawn/games/vn/events/VNTextEvent.hpp

@@ -14,13 +14,6 @@ namespace Dawn {
     protected:
       void onStart() override {
         std::cout << "TEXT: " << text << std::endl;
-        
-        useEvent([&](float_t delta) {
-          if(getScene()->game->inputManager.isPressed(INPUT_BIND_ACCEPT)) {
-            std::cout << "Text Advance" << std::endl;
-            this->next();
-          }
-        }, getScene()->eventSceneUpdate);
       }
   };
 }

src/dawn/scene/components/ui/UILabel.cpp

@@ -13,7 +13,9 @@ UILabel::UILabel(SceneItem *item) :
   text(""),
   fontSize(10.0f),
   font(&item->scene->game->renderManager.defaultFont),
-  maxWidth(UI_LABEL_MAX_WIDTH_ALIGN)
+  maxWidth(UI_LABEL_MAX_WIDTH_ALIGN),
+  startQuad(0),
+  quadCount(-1)
 {
 }
 
@@ -30,7 +32,12 @@ void UILabel::updateMesh() {
   if(!this->hasText()) return;
 
   float_t width = this->maxWidth;
-  assertTrue(width == UI_LABEL_MAX_WIDTH_NONE || width == UI_LABEL_MAX_WIDTH_ALIGN || width > 0);
+  assertTrue(
+    width == UI_LABEL_MAX_WIDTH_NONE ||
+    width == UI_LABEL_MAX_WIDTH_ALIGN ||
+    width > 0
+  );
+
   if(width == UI_LABEL_MAX_WIDTH_ALIGN) {
     auto dimensional = this->getParentDimensional();
     auto align = (glm::vec4)this->alignment;
@@ -56,6 +63,8 @@ void UILabel::updateMesh() {
   );
 
   this->needsRebuffering = false;
+
+  this->eventFontRebuffered.invoke();
 }
 
 std::vector<struct ShaderPassItem> UILabel::getPassItems(
@@ -100,7 +109,7 @@ void UILabel::onStart() {
 
   useEffect([&]{
     alignmentNeedsUpdating = true;
-  }, { &fontSize, &font, &text, &maxWidth });
+  }, { &fontSize, &font, &text, &maxWidth, &startQuad, &quadCount });
 
   useEffect([&]{
     needsRebuffering = true;

src/dawn/scene/components/ui/UILabel.hpp

@@ -39,10 +39,14 @@ namespace Dawn {
       StateProperty<float_t> maxWidth;
       /* @optional */
       struct Color textColor = COLOR_WHITE;
+      // @optional
+      StateProperty<int32_t> startQuad;
+      // @optional
+      StateProperty<int32_t> quadCount;
+
+      StateEvent<> eventFontRebuffered;
       
       struct FontMeasure measure;
-      int32_t startQuad = 0;
-      int32_t quadCount = -1;
 
       UILabel(SceneItem *item);
 

src/dawntools/scenetool/SceneTool.cpp

@@ -35,7 +35,6 @@ int32_t SceneTool::start() {
   struct SceneItemComponentRegistry registry;
   registry.sources = File::normalizeSlashes(flags["sources"]);
   scene.registry = &registry;
-
   auto result = ((SceneParser()).parse(&xml, &scene, &error));
   if(result != 0) {
     std::cout << "Failed to parse scene " << input.filename << "::" << error << std::endl;

src/dawntools/util/generator/SceneGenerator.cpp

@@ -13,6 +13,8 @@ void SceneGenerator::generate(
   struct MethodGenInfo &methodAssets,
   struct MethodGenInfo &methodInit
 ) {
+  assertNotNull(scene);
+  
   classInfo.clazz = scene->name;
   classInfo.constructorArgs = "DawnGame *game";
   classInfo.extendArgs = "game";
@@ -54,10 +56,12 @@ void SceneGenerator::generate(
   int32_t childNumber = 0;
   int32_t componentNumber = 0;
   std::map<std::string, std::string> assetMap;
+  std::vector<struct SceneItemComponent> componentsUnused;
 
-  auto sceneItems = scene->items.begin();
-  while(sceneItems != scene->items.end()) {
-    SceneItemGenerator::generate(
+  auto itDeps = scene->dependencies.begin();
+  while(itDeps != scene->dependencies.end()) {
+    auto dep = *itDeps;
+    SceneItemGenerator::generateDependency(
       assetNumber,
       componentNumber,
       childNumber,
@@ -68,24 +72,15 @@ void SceneGenerator::generate(
       &methodAssets.body,
       "",
       "this",
-      &(*sceneItems),
-      ""
+      componentsUnused,
+      scene->items,
+      scene->code,
+      dep
     );
-    ++sceneItems;
+    ++itDeps;
   }
 
+
   // Seal methods
   line(&methodAssets.body, "return assets;", "");
-
-  // Code
-  auto itCode = scene->code.begin();
-  while(itCode != scene->code.end()) {
-    SceneCodeGenerator::generate(
-      &classInfo.publicProperties,
-      &methodInit.body,
-      &(*itCode),
-      ""
-    );
-    ++itCode;
-  }
 }

src/dawntools/util/generator/SceneItemGenerator.cpp

@@ -7,6 +7,76 @@
 
 using namespace Dawn;
 
+void SceneItemGenerator::generateDependency(
+  int32_t &assetNumber,
+  int32_t &componentNumber,
+  int32_t &childNumber,
+  std::map<std::string, std::string> &assetMap,
+  std::vector<std::string> &includes,
+  std::vector<std::string> *publicProperties,
+  std::vector<std::string> *initBody,
+  std::vector<std::string> *assetBody,
+  std::string name,
+  std::string sceneRef,
+  std::vector<struct SceneItemComponent> &components,
+  std::vector<struct SceneItem> &children,
+  std::vector<struct SceneCode> &code,
+  struct SceneItemDependency dep
+) {
+  switch(dep.type) {
+    case SCENE_ITEM_DEPENDENCY_TYPE_CODE: {
+      auto i = &code[dep.position];
+      SceneCodeGenerator::generate(
+        publicProperties,
+        initBody,
+        i,
+        ""
+      );
+      line(initBody, "", "");
+      break;
+    }
+      
+    case SCENE_ITEM_DEPENDENCY_TYPE_COMPONENT: {
+      auto i = &components[dep.position];
+      SceneItemComponentGenerator::generate(
+        assetMap,
+        componentNumber,
+        includes,
+        name,
+        publicProperties,
+        initBody,
+        i,
+        ""
+      );
+      line(initBody, "", "");
+      break;
+    }
+
+    case SCENE_ITEM_DEPENDENCY_TYPE_ITEM: {
+      auto i = &children[dep.position];
+      SceneItemGenerator::generate(
+        assetNumber,
+        componentNumber,
+        childNumber,
+        assetMap,
+        includes,
+        publicProperties,
+        initBody,
+        assetBody,
+        name,
+        sceneRef,
+        i,
+        ""
+      );
+      line(initBody, "", "");
+      break;
+    }
+
+    default:
+      assertUnreachable();
+  }
+}
+
 void SceneItemGenerator::generate(
   int32_t &assetNumber,
   int32_t &componentNumber,
@@ -21,6 +91,11 @@ void SceneItemGenerator::generate(
   struct SceneItem *item,
   std::string tabs
 ) {
+  assertNotNull(publicProperties);
+  assertNotNull(initBody);
+  assertNotNull(assetBody);
+  assertNotNull(item);
+
   // Determine interface
   std::string name = "itm" + std::to_string(childNumber++);
   std::string itemType = "SceneItem";
@@ -82,26 +157,11 @@ void SceneItemGenerator::generate(
     ++itAssets;
   }
 
-  // Add components for children
-  auto itComponents = item->components.begin();
-  while(itComponents != item->components.end()) {
-    SceneItemComponentGenerator::generate(
-      assetMap,
-      componentNumber,
-      includes,
-      name,
-      publicProperties,
-      initBody,
-      &(*itComponents),
-      ""
-    );
-    ++itComponents;
-  }
-
-  // Process sub children
-  auto itChildren = item->children.begin();
-  while(itChildren != item->children.end()) {
-    SceneItemGenerator::generate(
+  // Add the dependencies
+  auto itDeps = item->dependencies.begin();
+  while(itDeps != item->dependencies.end()) {
+    auto dep = *itDeps;
+    SceneItemGenerator::generateDependency(
       assetNumber,
       componentNumber,
       childNumber,
@@ -112,26 +172,16 @@ void SceneItemGenerator::generate(
       assetBody,
       name,
       sceneRef,
-      &(*itChildren),
-      ""
+      item->components,
+      item->children,
+      item->code,
+      dep
     );
-    ++itChildren;
+    ++itDeps;
   }
 
   // Set parent
   if(!parentRef.empty()) {
     line(initBody, name + "->transform.setParent(&"+parentRef+"->transform);", "");
   }
-
-  // Code
-  auto itCode = item->code.begin();
-  while(itCode != item->code.end()) {
-    SceneCodeGenerator::generate(
-      publicProperties,
-      initBody,
-      &(*itCode),
-      ""
-    );
-    ++itCode;
-  }
 }

src/dawntools/util/generator/SceneItemGenerator.hpp

@@ -12,6 +12,23 @@
 namespace Dawn {
   class SceneItemGenerator : public CodeGen {
     public:
+      static void generateDependency(
+        int32_t &assetNumber,
+        int32_t &componentNumber,
+        int32_t &childNumber,
+        std::map<std::string, std::string> &assetMap,
+        std::vector<std::string> &includes,
+        std::vector<std::string> *publicProperties,
+        std::vector<std::string> *initBody,
+        std::vector<std::string> *assetBody,
+        std::string name,
+        std::string sceneRef,
+        std::vector<struct SceneItemComponent> &components,
+        std::vector<struct SceneItem> &children,
+        std::vector<struct SceneCode> &code,
+        struct SceneItemDependency dep
+      );
+
       static void generate(
         int32_t &assetNumber,
         int32_t &componentNumber,

src/dawntools/util/parser/SceneItemParser.cpp

@@ -54,6 +54,8 @@ int32_t SceneItemParser::onParse(
 
   out->prefab = values["prefab"];
 
+  struct SceneItemDependency dep;
+
   auto itChildren = node->children.begin();
   while(itChildren != node->children.end()) {
     // Parse child nodes, they may be components or not
@@ -65,6 +67,12 @@ int32_t SceneItemParser::onParse(
       auto ret = (SceneItemParser()).parse(c, &child, error);
       if(ret != 0) return ret;
       out->children.push_back(child);
+
+      // Add a dependency. This solves the reference order problem.
+      struct SceneItemDependency dep;
+      dep.type = SCENE_ITEM_DEPENDENCY_TYPE_ITEM;
+      dep.position = out->children.size() - 1;
+      out->dependencies.push_back(dep);
       
     } else if(c->node == "asset") {
       struct SceneAsset asset;
@@ -77,6 +85,11 @@ int32_t SceneItemParser::onParse(
       auto ret = (SceneCodeParser()).parse(c, &code, error);
       if(ret != 0) return ret;
       out->code.push_back(code);
+
+      // Add Dep
+      dep.type = SCENE_ITEM_DEPENDENCY_TYPE_CODE;
+      dep.position = out->code.size() - 1;
+      out->dependencies.push_back(dep);
       
     } else {
       struct SceneItemComponent component;
@@ -84,6 +97,12 @@ int32_t SceneItemParser::onParse(
       auto ret = (SceneItemComponentParser()).parse(c, &component, error);
       if(ret != 0) return ret;
       out->components.push_back(component);
+
+      // Add dep
+      struct SceneItemDependency dep;
+      dep.type = SCENE_ITEM_DEPENDENCY_TYPE_COMPONENT;
+      dep.position = out->components.size() - 1;
+      out->dependencies.push_back(dep);
     }
     ++itChildren;
   }

src/dawntools/util/parser/SceneItemParser.hpp

@@ -9,6 +9,17 @@
 #include "util/parser/SceneCodeParser.hpp"
 
 namespace Dawn {
+  enum SceneItemDependencyType {
+    SCENE_ITEM_DEPENDENCY_TYPE_ITEM,
+    SCENE_ITEM_DEPENDENCY_TYPE_COMPONENT,
+    SCENE_ITEM_DEPENDENCY_TYPE_CODE,
+  };
+
+  struct SceneItemDependency {
+    enum SceneItemDependencyType type;
+    size_t position;
+  };
+
   struct SceneItem {
     struct SceneItemComponentRegistry *registry;
     std::string ref;
@@ -21,6 +32,7 @@ namespace Dawn {
     std::vector<struct SceneItem> children;
     std::vector<struct SceneAsset> assets;
     std::vector<struct SceneCode> code;
+    std::vector<struct SceneItemDependency> dependencies;
   };
 
   class SceneItemParser : public XmlParser<struct SceneItem> {

src/dawntools/util/parser/SceneParser.cpp

@@ -29,6 +29,8 @@ int32_t SceneParser::onParse(
   out->name = values["name"];
   out->extend = values["extend"];
 
+  struct SceneItemDependency dep;
+
   //Parse the children
   auto itChildren = node->children.begin();
   while(itChildren != node->children.end()) {
@@ -40,12 +42,22 @@ int32_t SceneParser::onParse(
       ret = (SceneItemParser()).parse(child, &item, error);
       if(ret != 0) return 1;
       out->items.push_back(item);
+
+      //Add the dependency
+      dep.type = SCENE_ITEM_DEPENDENCY_TYPE_ITEM;
+      dep.position = out->items.size() - 1;
+      out->dependencies.push_back(dep);
       
     } else if(child->node == "code") {
       struct SceneCode code;
       ret = (SceneCodeParser()).parse(child, &code, error);
       if(ret != 0) return ret;
       out->code.push_back(code);
+
+      //Add the dependency
+      dep.type = SCENE_ITEM_DEPENDENCY_TYPE_CODE;
+      dep.position = out->code.size() - 1;
+      out->dependencies.push_back(dep);
     }
 
     ++itChildren;

src/dawntools/util/parser/SceneParser.hpp

@@ -14,6 +14,7 @@ namespace Dawn {
     std::vector<struct SceneItem> items;
     std::vector<struct SceneCode> code;
     struct SceneItemComponentRegistry *registry;
+    std::vector<struct SceneItemDependency> dependencies;
   };
 
   class SceneParser : public XmlParser<struct Scene> {