add screensaver and optimize performance

Signed-off-by: Peter Siegmund <developer@mars3142.org>

components/insa/src/ui/MainMenu.cpp

@@ -14,7 +14,7 @@ constexpr uint8_t SETTINGS = 2;
 MainMenu::MainMenu(menu_options_t *options) : Menu(options), m_options(options)
 {
     addText(MainMenuItem::LIGHT, "Lichtsteuerung");
-    addText(MainMenuItem::EXTERNAL_DEVICES, "Externe Geraete");
+    addTextCounter(MainMenuItem::EXTERNAL_DEVICES, "ext. Geraete", 0);
     addText(MainMenuItem::SETTINGS, "Einstellungen");
 }
 

components/insa/src/ui/ScreenSaver.cpp

@@ -0,0 +1,93 @@
+#include "ui/ScreenSaver.h"
+#include <cmath>
+
+ScreenSaver::ScreenSaver(menu_options_t *options) : Widget(options->u8g2), m_options(options), m_animationCounter(0)
+{
+    initStars();
+}
+
+void ScreenSaver::initStars()
+{
+    m_stars.resize(NUM_STARS);
+
+    for (auto &star : m_stars)
+    {
+        resetStar(star);
+        star.z = Z_NEAR + (static_cast<float>(rand()) / RAND_MAX) * (Z_FAR - Z_NEAR);
+    }
+}
+
+void ScreenSaver::resetStar(Star &star)
+{
+    star.x = (static_cast<float>(rand()) / RAND_MAX - 0.5f) * 2.0f;
+    star.y = (static_cast<float>(rand()) / RAND_MAX - 0.5f) * 2.0f;
+    star.z = Z_FAR;
+    star.speed = 0.5f + (static_cast<float>(rand()) / RAND_MAX) * 1.5f;
+}
+
+void ScreenSaver::update(const uint64_t dt)
+{
+    m_animationCounter += dt;
+
+    if (m_animationCounter > 8)
+    {
+        m_animationCounter = 0;
+
+        for (auto &star : m_stars)
+        {
+            star.z -= star.speed * SPEED_MULTIPLIER;
+
+            if (star.z < Z_NEAR)
+            {
+                resetStar(star);
+            }
+        }
+    }
+}
+
+void ScreenSaver::render()
+{
+    // Verwende Page-Buffer Mode statt Full-Buffer für bessere Performance
+    // Schwarzer Hintergrund
+    u8g2_SetDrawColor(u8g2, 0);
+    u8g2_DrawBox(u8g2, 0, 0, u8g2->width, u8g2->height);
+    u8g2_SetDrawColor(u8g2, 1);
+
+    const int centerX = u8g2->width / 2;
+    const int centerY = u8g2->height / 2;
+
+    // Zeichne nur sichtbare Sterne (Clipping)
+    for (const auto &star : m_stars)
+    {
+        // 3D zu 2D Projektion
+        int screenX = centerX + static_cast<int>((star.x / star.z) * centerX);
+        int screenY = centerY + static_cast<int>((star.y / star.z) * centerY);
+
+        // Frühe Prüfung für Performance
+        if (screenX < -5 || screenX >= u8g2->width + 5 || screenY < -5 || screenY >= u8g2->height + 5)
+        {
+            continue;
+        }
+
+        // Vereinfachte Sterndarstellung für bessere Performance
+        int size = static_cast<int>((1.0f - (star.z - Z_NEAR) / (Z_FAR - Z_NEAR)) * 2.0f);
+
+        if (size <= 0)
+        {
+            u8g2_DrawPixel(u8g2, screenX, screenY);
+        }
+        else
+        {
+            // Verwende u8g2_DrawCircle für größere Sterne (schneller)
+            u8g2_DrawCircle(u8g2, screenX, screenY, size, U8G2_DRAW_ALL);
+        }
+    }
+}
+
+void ScreenSaver::onButtonClicked(ButtonType button)
+{
+    if (m_options && m_options->popScreen)
+    {
+        m_options->popScreen();
+    }
+}

components/insa/src/ui/SplashScreen.cpp

@@ -17,7 +17,7 @@ void SplashScreen::update(const uint64_t dt)
 {
     counter += dt;
 #ifndef ESP32
-    if (counter > 20)
+    if (counter > 3000)
 #else
     if (counter > 10)
 #endif