1 files changed, 56 insertions, 0 deletions
diff --git a/src/ui.cpp b/src/ui.cpp
new file mode 100644
index 0000000..a6c5081
--- /dev/null
+++ b/src/ui.cpp
@@ -0,0 +1,56 @@
+#include "ui.hpp"
+
+#include "events/render.hpp"
+#include "text.hpp"
+
+#include <SDL2/SDL_opengl.h>
+#include <iostream>
+#include <string>
+
+static NewRenderEvent NRE (0, 0, 0, 0);
+static const unsigned int NRE_TEX_DATA = 0xFF0000FF;
+static std::basic_string<TextMeshData> buffer;
+
+void UISystem::configure(entityx::EntityManager&, entityx::EventManager&)
+{
+}
+
+void UISystem::update(entityx::EntityManager&,
+    entityx::EventManager& events,
+    entityx::TimeDelta)
+{
+    static bool t = false;
+
+    if (!t) {
+        t = true;
+
+        glGenBuffers(1, &NRE.vbo);
+        glGenTextures(1, &NRE.tex);
+
+        glBindTexture(GL_TEXTURE_2D, NRE.tex);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, 1, 1, 0, GL_RGB, GL_UNSIGNED_BYTE, &NRE_TEX_DATA);
+
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+
+        buffer += { 30, -50, -8, 0, 0, 1 };
+        buffer += { 160, -50, -8, 0, 0, 1 };
+        buffer += { 160, -10, -8, 0, 0, 1 };
+        buffer += { 160, -10, -8, 0, 0, 1 };
+        buffer += { 30, -10, -8, 0, 0, 1 };
+        buffer += { 30, -50, -8, 0, 0, 1 };
+
+        glBindBuffer(GL_ARRAY_BUFFER, NRE.vbo);
+        glBufferData(GL_ARRAY_BUFFER,
+                     buffer.size() * sizeof(TextMeshData), buffer.data(),
+                     GL_DYNAMIC_DRAW);
+
+        NRE.normal = 0;
+        NRE.vertex = buffer.size();
+        events.emit<NewRenderEvent>(NRE);
+    }
+}
+