Now I gotta fix alignment

src/dawn/scene/SceneItem.hpp

@@ -149,11 +149,11 @@ namespace Dawn {
         std::vector<T*> itemsFound;
 
         while(transformsToCheck.size() > 0) {
-          auto tras = transformsToCheck.begin();
-          vectorAppend(&transformsToCheck, (*tras)->children);
-          auto component = (*tras)->item->getComponent<T>();
+          Transform *tras = *transformsToCheck.begin();
+          vectorAppend(&transformsToCheck, tras->children);
+          auto component = tras->item->getComponent<T>();
           if(component != nullptr) itemsFound.push_back(component);
-          transformsToCheck.erase(tras);
+          transformsToCheck.erase(transformsToCheck.begin());
         }
 
         return itemsFound;

src/dawn/scene/components/ui/CMakeLists.txt

@@ -10,6 +10,7 @@ target_sources(${DAWN_TARGET_NAME}
     UIComponent.cpp
     UILabel.cpp
     UIImage.cpp
+    UIBorder.cpp
 )
 
 add_subdirectory(menu)

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

@@ -0,0 +1,119 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "UIBorder.hpp"
+#include "game/DawnGame.hpp"
+
+using namespace Dawn;
+
+UIBorder::UIBorder(SceneItem *item) :
+  texture(nullptr),
+  borderSize(glm::vec2(8, 8)),
+  UIComponent(item)
+{
+}
+
+float_t UIBorder::getContentWidth() {
+  if(this->texture != nullptr) return this->texture->getWidth();
+  return this->width;
+}
+
+float_t UIBorder::getContentHeight() {
+  if(this->texture != nullptr) return this->texture->getHeight();
+  return this->height;
+}
+
+std::vector<struct ShaderPassItem> UIBorder::getPassItems(
+  glm::mat4 proj, glm::mat4 view
+) {
+  struct ShaderPassItem item;
+  auto shader = &getGame()->renderManager.uiShader->program;
+  item.shaderProgram = shader;
+  item.colorValues[shader->paramColor] = COLOR_WHITE;
+  item.matrixValues[shader->paramProjection] = proj;
+  item.matrixValues[shader->paramView] = view;
+  item.matrixValues[shader->paramModel] = this->transform->getWorldTransform();
+  if(this->texture == nullptr) {
+    item.boolValues[shader->paramHasTexture] = false;
+  } else {
+    item.boolValues[shader->paramHasTexture] = true;
+    item.textureSlots[0] = this->texture;
+    item.textureValues[shader->paramTexture] = 0;
+  }
+  item.w = this->transform->getWorldPosition().z;
+  item.renderFlags = RENDER_MANAGER_RENDER_FLAG_BLEND;
+  item.mesh = &mesh;
+  
+  return { item };
+}
+
+void UIBorder::onStart() {
+  UIComponent::onStart();
+
+  auto rebufferQuad = [&] {
+    glm::vec2 tSize = glm::vec2(1, 1) / 3.0f;
+    glm::vec2 bSize = (glm::vec2)borderSize;
+    glm::vec2 iSize = glm::vec2(this->getWidth(), this->getHeight()) - ( bSize * 2.0f );
+
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(0, 0), glm::vec2(0, 0),
+      bSize, tSize,
+      0, 0
+    );
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(bSize.x, 0), glm::vec2(tSize.x, 0),
+      glm::vec2(iSize.x + bSize.x, bSize.y), glm::vec2(tSize.x * 2, tSize.y),
+      QUAD_VERTICE_COUNT, QUAD_INDICE_COUNT
+    );
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(iSize.x + bSize.x, 0), glm::vec2(tSize.x + tSize.x, 0),
+      glm::vec2(this->getWidth(), bSize.y), glm::vec2(1.0f, tSize.y),
+      2 * QUAD_VERTICE_COUNT, 2 * QUAD_INDICE_COUNT
+    );
+
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(0, bSize.y), glm::vec2(0, tSize.y),
+      bSize + glm::vec2(0, iSize.y), tSize + glm::vec2(0, tSize.y),
+      3 * QUAD_VERTICE_COUNT, 3 * QUAD_INDICE_COUNT
+    );
+    QuadMesh::bufferQuadMesh(&mesh,
+      bSize, tSize,
+      bSize + iSize, tSize + tSize,
+      4 * QUAD_VERTICE_COUNT, 4 * QUAD_INDICE_COUNT
+    );
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(iSize.x + bSize.x, 0), tSize + glm::vec2(tSize.x, 0),
+      glm::vec2(this->getWidth(), bSize.y + iSize.y), glm::vec2(1.0f, tSize.y + tSize.y),
+      5 * QUAD_VERTICE_COUNT, 5 * QUAD_INDICE_COUNT
+    );
+
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(0, iSize.y + bSize.y), glm::vec2(0, tSize.y + tSize.y),
+      glm::vec2(bSize.x, this->getHeight()), glm::vec2(tSize.x, 1.0f),
+      6 * QUAD_VERTICE_COUNT, 6 * QUAD_INDICE_COUNT
+    );
+    QuadMesh::bufferQuadMesh(&mesh,
+      glm::vec2(bSize.x, iSize.y + bSize.y), glm::vec2(tSize.x, tSize.y + tSize.y),
+      glm::vec2(iSize.x + bSize.x, this->getHeight()), glm::vec2(tSize.x * 2, 1.0f),
+      7 * QUAD_VERTICE_COUNT, 7 * QUAD_INDICE_COUNT
+    );
+    QuadMesh::bufferQuadMesh(&mesh,
+      bSize + iSize, tSize + tSize,
+      glm::vec2(this->getWidth(), this->getHeight()), glm::vec2(1.0f, 1.0f),
+      8 * QUAD_VERTICE_COUNT, 8 * QUAD_INDICE_COUNT
+    );
+  };
+
+  this->mesh.createBuffers(
+    QUAD_VERTICE_COUNT * UI_BORDER_QUAD_COUNT,
+    QUAD_INDICE_COUNT * UI_BORDER_QUAD_COUNT
+  );
+  rebufferQuad();
+
+  useEvent(rebufferQuad, this->eventAlignmentUpdated);
+  useEffect([&]{
+    this->alignmentNeedsUpdating = true;
+  }, this->borderSize);
+}

src/dawn/scene/components/ui/UIBorder.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 "UIComponent.hpp"
+#include "display/mesh/QuadMesh.hpp"
+
+#define UI_BORDER_QUAD_COUNT 9
+
+namespace Dawn {
+  class UIBorder : public UIComponent, public UIComponentRenderable {
+    private:
+      Mesh mesh;
+
+    public:
+      // @optional
+      StateProperty<glm::vec2> borderSize;
+      // @optional
+      StateProperty<Texture*> texture;
+
+      UIBorder(SceneItem *item);
+
+      float_t getContentWidth() override;
+      float_t getContentHeight() override;
+      std::vector<struct ShaderPassItem> getPassItems(
+        glm::mat4 proj, glm::mat4 view
+      ) override;
+      void onStart() override;
+  };
+}