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working movable mask and text printing

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Filipriec
2025-11-13 18:19:49 +01:00
parent 662107fb28
commit 10e11858f3
1 changed files with 46 additions and 14 deletions
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60
hod6/main.cpp
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@@ -4,7 +4,7 @@
#define TARGET_TX_PIN USBTX
#define TARGET_RX_PIN USBRX
#define BAUD_RATE 9600
#define BAUD_RATE 115200
static BufferedSerial serial_port(TARGET_TX_PIN, TARGET_RX_PIN, BAUD_RATE);
@@ -18,39 +18,71 @@ DigitalOut led(LED1);
#define BUFFER_SIZE 64
static char rx_buffer[BUFFER_SIZE];
void print_ascii_mask(uint32_t mask)
// Draw shifting mask with optional centered text
void draw_mask(uint32_t mask, int shift, const char *text = nullptr)
{
for (int byte = 3; byte >= 0; byte--) { // High byte first
uint8_t b = (mask >> (byte * 8)) & 0xFF;
printf("\033[2J\033[H"); // clear + home
for (int byte = 3; byte >= 0; byte--) {
uint8_t b = ((mask >> (byte * 8)) & 0xFF);
// Circular shift for movement illusion
uint8_t rotated = (b << shift) | (b >> (8 - shift));
for (int i = 7; i >= 0; i--) {
printf("%c", (b & (1 << i)) ? '#' : '.'); // '#' for 1, '.' for 0
printf("%c", (rotated & (1 << i)) ? '#' : '.');
}
printf("\r\n");
}
printf("\r\n");
// Message under the mask
if (text && text[0] != '\0') {
printf("\r\n[RX] %s\r\n", text);
}
fflush(stdout);
}
int main(void)
{
serial_port.set_format(8, BufferedSerial::None, 1);
printf("Baud: %d, Format: 8-N-1\r\n", BAUD_RATE);
uint32_t mask = 0xF0F0A55A;
int shift = 0;
char message[BUFFER_SIZE] = {0};
bool message_active = false;
Timer msg_timer;
Timer anim_timer;
msg_timer.start();
anim_timer.start();
while (true) {
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;
// serial_port.write(rx_buffer, num);
printf("[RX] %s\r\n", rx_buffer);
uint32_t mask = 0xF0F0A55A;
print_ascii_mask(mask);
strncpy(message, rx_buffer, sizeof(message) - 1);
message_active = true;
msg_timer.reset();
}
}
ThisThread::sleep_for(10ms);
if (message_active && msg_timer.elapsed_time() > 1s) {
message_active = false;
memset(message, 0, sizeof(message));
}
// if (message_active && msg_timer.elapsed_time() > 100ms) {
// shift = (shift + 1) % 8;
// }
if (anim_timer.elapsed_time() >= 100ms) {
shift = (shift + 1) % 8;
anim_timer.reset();
draw_mask(mask, shift, message_active ? message : nullptr);
}
ThisThread::sleep_for(20ms);
}
}