From aad95e9292505301b9644ee6d10a87030739c45d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrick=20Ha=C3=9Fel?= <git@patrick-hassel.de>
Date: Sun, 26 Dec 2021 13:58:31 +0100
Subject: [PATCH] Clock

---
 src/main.cpp           |   7 ++-
 src/mode/Clock/Clock.h | 131 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 137 insertions(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index 8f58182..57b4a09 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,10 +4,12 @@
 #include "display/Display.h"
 #include "mode/Pong/Pong.h"
 #include "mode/Test/Border.h"
+#include "mode/Clock/Clock.h"
 
 enum ModeId {
     NONE,
     BORDER,
+    CLOCK,
     GAME_OF_LIFE_BLACK_WHITE,
     GAME_OF_LIFE_WHITE_FADE,
     GAME_OF_LIFE_COLOR_FADE,
@@ -17,7 +19,7 @@ enum ModeId {
 
 Display display(32, 8);
 
-ModeId newModeId = GAME_OF_LIFE_COLOR_FADE;
+ModeId newModeId = GAME_OF_LIFE_WHITE_FADE;
 
 ModeId currentModeId = NONE;
 
@@ -132,6 +134,9 @@ void loadNewMode() {
     case BORDER:
       mode = new Border(&display);
       break;
+    case CLOCK:
+      mode = new Clock(&display);
+      break;
     case GAME_OF_LIFE_BLACK_WHITE:
       mode = new GameOfLife(&display, BLACK_WHITE);
       break;
diff --git a/src/mode/Clock/Clock.h b/src/mode/Clock/Clock.h
index b56c8ed..862c5f4 100644
--- a/src/mode/Clock/Clock.h
+++ b/src/mode/Clock/Clock.h
@@ -3,8 +3,139 @@
 
 #include "mode/Mode.h"
 
+#define X true
+#define _ false
+
 class Clock : public Mode {
 
+private:
+
+    bool SYMBOLS[11][35] = {
+      {
+        X, X, X,
+        X, _, X,
+        X, _, X,
+        X, _, X,
+        X, X, X,
+      },
+      {
+        _, _, X,
+        _, X, X,
+        _, _, X,
+        _, _, X,
+        _, _, X,
+      },
+      {
+        X, X, X,
+        _, _, X,
+        X, X, X,
+        X, _, _,
+        X, X, X,
+      },
+      {
+        X, X, X,
+        _, _, X,
+        _, X, X,
+        _, _, X,
+        X, X, X,
+      },
+      {
+        X, _, X,
+        X, _, X,
+        X, X, X,
+        _, _, X,
+        _, _, X,
+      },
+      {
+        X, X, X,
+        X, _, _,
+        X, X, X,
+        _, _, X,
+        X, X, X,
+      },
+      {
+        X, X, X,
+        X, _, _,
+        X, X, X,
+        X, _, X,
+        X, X, X,
+      },
+      {
+        X, X, X,
+        _, _, X,
+        _, X, _,
+        X, _, _,
+        X, _, _,
+      },
+      {
+        X, X, X,
+        X, _, X,
+        X, X, X,
+        X, _, X,
+        X, X, X,
+      },
+      {
+        X, X, X,
+        X, _, X,
+        X, X, X,
+        _, _, X,
+        X, X, X,
+      },
+      {
+        _, _, _,
+        _, X, _,
+        _, _, _,
+        _, X, _,
+        _, _, _,
+      },
+    };
+
+public:
+
+    explicit Clock(Display *display) :
+      Mode(display) {
+      // nothing
+    }
+
+    ~Clock() override = default;
+
+    const char *getName() override {
+      return "Clock";
+    }
+
+    void step(millis_t dt) override {
+      tm time{};
+      getLocalTime(&time);
+      display->clear();
+      uint8_t x = 0;
+      print(&x, time.tm_hour / 10);
+      x++;
+      print(&x, time.tm_hour % 10);
+      print(&x, 10);
+      print(&x, time.tm_min / 10);
+      x++;
+      print(&x, time.tm_min % 10);
+      print(&x, 10);
+      print(&x, time.tm_sec / 10);
+      x++;
+      print(&x, time.tm_sec % 10);
+    }
+
+    void print(uint8_t *pos, uint8_t index) {
+      if (index > 10) {
+        Serial.printf("Cannot print symbol #%u.", index);
+        return;
+      }
+      bool *symbolBit = SYMBOLS[index];
+      for (uint8_t y = 0; y < 5; ++y) {
+        for (uint8_t x = 0; x < 3; ++x) {
+          uint8_t value = *(symbolBit++) ? 255 : 0;
+          display->set(*pos + x, y, value, value, value);
+        }
+      }
+      *pos += 3;
+    }
+
 };
 
 #endif