split config now

semestralka1/src/render/loop.cpp

@@ -0,0 +1,67 @@
+// src/render/loop.c
+
+#include "loop.h"
+#include "mbed.h"
+#include "../background_dark_inverted.h"
+
+extern BufferedSerial serial_port;
+extern DigitalOut led;
+
+#define BUFFER_SIZE 64
+
+static char rx_buffer[BUFFER_SIZE];
+static char message[BUFFER_SIZE];
+static bool message_active = false;
+
+void draw_mask(const char *unused_filename, int shift, const char *text = nullptr);
+
+void render_loop() {
+    Timer msg_timer;
+    Timer anim_timer;
+    msg_timer.start();
+    anim_timer.start();
+
+    int shift = 0;
+    const char *bg_file = "background_dark_inverted.txt";
+    bool need_redraw = false;
+
+    while (true) {
+        // Read from UART if available
+        if (serial_port.readable()) {
+            memset(rx_buffer, 0, sizeof(rx_buffer));
+            ssize_t num = serial_port.read(rx_buffer, sizeof(rx_buffer) - 1);
+            if (num > 0) {
+                led = !led;
+
+                strncpy(message, rx_buffer, sizeof(message) - 1);
+                message_active = true;
+                msg_timer.reset();
+
+                need_redraw = true;
+            }
+        }
+
+        // Message lifetime
+        if (message_active && msg_timer.elapsed_time() > 1s) {
+            message_active = false;
+            memset(message, 0, sizeof(message));
+            need_redraw = true;
+        }
+
+        // Animation tick
+        if (anim_timer.elapsed_time() >= 80ms) {
+            shift++;
+            anim_timer.reset();
+            need_redraw = true;
+        }
+
+        // Draw
+        if (need_redraw) {
+            draw_mask(bg_file, shift, message_active ? message : nullptr);
+            need_redraw = false;
+            ThisThread::sleep_for(60ms);
+        }
+
+        ThisThread::sleep_for(20ms);
+    }
+}