Make more interesting use of the palette mode

adafruit · Feb 27, 2025 · ee8007f · ee8007f
1 parent 9c70f0d
commit ee8007f
Showing 1 changed file with 32 additions and 5 deletions.
diff --git a/examples/01palettetest/01palettetest.ino b/examples/01palettetest/01palettetest.ino
@@ -10,6 +10,25 @@ DVHSTX8 display(DVHSTX_PINOUT_DEFAULT, DVHSTX_RESOLUTION_640x360);
 // The order is: {CKP, D0P, D1P, D2P} DVHSTX8 display({12, 14, 16, 18},
 // DVHSTX_RESOLUTION_640x360);
 
+struct moving_point {
+    int x, y, dx, dy;
+    void step() {
+        x += dx;
+        if (x < 0) { x = 0; dx = random(3) + 1; }
+        if (x >= display.width()) { x = display.width() - 1; dx = -random(3) - 1; }
+
+        y += dy;
+        if (y < 0) { y = 0; dy = random(3) + 1; }
+        if (y >= display.height()) { y = display.height() - 1; dy = -random(3) - 1; }
+    }
+};
+
+moving_point p1, p2;
+
+int random_with_sign(int n) {
+    return random(2) ? random(n-1)+1 : -random(n-1)-1;
+}
+
 void setup() {
   Serial.begin(115200);
   // while(!Serial);
@@ -19,12 +38,20 @@ void setup() {
       digitalWrite(LED_BUILTIN, (millis() / 500) & 1);
   }
   Serial.println("display initialized");
+  p1 = moving_point{random(display.width()), random(display.height()), random_with_sign(3), random_with_sign(3)};
+  p2 = moving_point{random(display.width()), random(display.height()), random_with_sign(3), random_with_sign(3)};
 }
 
 void loop() {
-  // Draw random lines
-  display.drawLine(random(display.width()), random(display.height()),
-                   random(display.width()), random(display.height()),
-                   random(65536));
-  sleep_ms(1);
+  static int j;
+  display.drawLine(p1.x, p1.y, p2.x, p2.y, 1 + (j + 254) % 255);
+Serial.printf("%d %d %d %d\r\n", p1.x, p1.y, p1.dx, p1.dy);
+  p1.step();
+  p2.step();
+
+  for(int i=1; i<256; i++) {
+    display.setColor(i, ((i + j) % 255) * 0x010101);
+  }
+  j += 1;
+  delay(3);
 }