FPS Label Implemented

src/dawn/display/font/BitmapFont.cpp

@@ -44,7 +44,10 @@ void BitmapFont::buffer(
   size_t j = 0;
   size_t wordStart = 0;
   glm::vec2 xy0(0, 0);
-  glm::vec2 tileSize = glm::vec2(tileset->getTileWidth(), tileset->getTileHeight());
+  glm::vec2 tileSize =
+    glm::vec2(tileset->getTileWidth(), tileset->getTileHeight()) *
+    (fontSize / this->getDefaultFontSize())
+  ;
 
   // Buffer quads
   while(c = text[i++]) {
@@ -139,9 +142,9 @@ void BitmapFont::draw(Mesh *mesh, int32_t start, int32_t len) {
 }
 
 float_t BitmapFont::getLineHeight(float_t fontSize) {
-  return 16.0f;
+  return tileset->getTileHeight();
 }
 
 float_t BitmapFont::getDefaultFontSize() {
-  return 16.0f;
+  return tileset->getTileHeight();
 }

src/dawn/prefabs/FPSLabel.hpp

@@ -0,0 +1,32 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "prefab/SceneItemPrefab.hpp"
+#include "scene/components/ui/UILabel.hpp"
+
+namespace Dawn {
+  class FPSLabel : public SceneItemPrefab<FPSLabel>, public StateOwner {
+    public:
+      static std::vector<Asset*> prefabAssets(AssetManager *man) {
+        return {};
+      }
+
+      UILabel *label;
+
+      FPSLabel(Scene *s, sceneitemid_t i) : SceneItemPrefab(s, i) {}
+
+      void prefabInit(AssetManager *man) override {
+        label = this->addComponent<UILabel>();
+        label->text = "No Frame";
+
+        useEvent([&](float_t delta){
+          std::string strFps = std::to_string((int32_t)(1.0f / delta));
+          std::string strTick = std::to_string((int32_t)(delta * 1000.0f));
+          label->text = strFps + "FPS (" + strTick + "ms)";
+        }, scene->eventSceneUnpausedUpdate);
+      }
+  };
+}

src/dawnglfw/host/DawnGLFWHost.cpp

@@ -48,7 +48,7 @@ int32_t DawnHost::init(DawnGame *game) {
 
   // Load GLAD
   glfwMakeContextCurrent(this->data->window);
-  glfwSwapInterval(0);
+  glfwSwapInterval(1);
   gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
 
   // Override the defaults

src/dawnhelloworld/scenes/HelloWorldScene.hpp

@@ -6,7 +6,7 @@
 #pragma once
 #include "scene/Scene.hpp"
 #include "prefabs/SimpleSpinningCubePrefab.hpp"
-#include "scene/components/ui/UILabel.hpp"
+#include "prefabs/FPSLabel.hpp"
 #include "scene/components/ui/UIImage.hpp"
 #include "display/font/BitmapFont.hpp"
 
@@ -17,38 +17,20 @@ namespace Dawn {
       SimpleSpinningCubePrefab *cube;
       UICanvas *canvas;
       UILabel *label;
-      UIImage *image;
-      BitmapFont font;
-      Texture test;
 
       void stage() override {
         camera = Camera::create(this);
         camera->transform->lookAt(glm::vec3(3, 3, 3), glm::vec3(0, 0, 0));
 
-
         cube = SimpleSpinningCubePrefab::create(this);
-        cube->material->texture = &test;
-        struct Color colors[] = {
-          COLOR_RED, COLOR_BLUE, COLOR_GREEN,
-          COLOR_MAGENTA, COLOR_DARK_GREY, COLOR_WHITE,
-          COLOR_BLACK, COLOR_CORNFLOWER_BLUE, COLOR_RED
-        };
-        test.setSize(3, 3);
-        test.buffer(colors);
 
         canvas = UICanvas::create(this);
 
-        auto imageItem = this->createSceneItem();
+        auto labelItem = FPSLabel::create(this);
-        image = imageItem->addComponent<UIImage>();
-        image->color = COLOR_BLACK;
-        imageItem->transform.setParent(canvas->transform);
-
-        auto labelItem = this->createSceneItem();
-        label = labelItem->addComponent<UILabel>();
         labelItem->transform.setParent(canvas->transform);
-        label->text = "Hello World, how are you today? I hope you are doing well. I really like the fact I can ramble in my text for once.";
+        labelItem->label->alignX = UI_COMPONENT_ALIGN_END;
-        label->maxWidth = 220;
+        labelItem->label->alignment = glm::vec4(0, 0, 0, 0);
-        image->alignment = glm::vec4(0, 0, label->getContentWidth(), label->getContentHeight());
+        labelItem->label->fontSize = 16;
       }
       
       std::vector<Asset*> getRequiredAssets() override {