First Commit

libraries/ssd1306/examples/direct_draw/move_sprite/move_sprite.ino

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+/*
+    MIT License
+
+    Copyright (c) 2016-2018, Alexey Dynda
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+*/
+/**
+ *   Attiny85 PINS
+ *             ____
+ *   RESET   -|_|  |- 3V
+ *   SCL (3) -|    |- (2)
+ *   SDA (4) -|    |- (1)
+ *   GND     -|____|- (0)
+ *
+ *   Atmega328 PINS: connect LCD to A4/A5
+ */
+
+#include "ssd1306.h"
+
+/* 
+ * Heart image below is defined directly in flash memory.
+ * This reduces SRAM consumption.
+ * The image is defined from bottom to top (bits), from left to
+ * right (bytes).
+ */
+const PROGMEM uint8_t heartImage[8] =
+{
+    0B00001110,
+    0B00011111,
+    0B00111111,
+    0B01111110,
+    0B01111110,
+    0B00111101,
+    0B00011001,
+    0B00001110
+};  
+
+/*
+ * Define sprite width. The width can be of any size.
+ * But sprite height is always assumed to be 8 pixels
+ * (number of bits in single byte).
+ */
+const int spriteWidth = sizeof(heartImage);
+
+/* Declare variable that represents our sprite */
+SPRITE sprite;
+int speedX = 1;
+int speedY = 1;
+
+void setup()
+{
+    ssd1306_128x64_i2c_init();
+    ssd1306_fillScreen(0x00);
+    /* Create sprite at 0,0 position. The function initializes sprite structure. */
+    sprite = ssd1306_createSprite( 0, 0, spriteWidth, heartImage );
+    /* Draw sprite on the display */
+    sprite.draw();
+}
+
+
+void loop()
+{
+    /* Move sprite every 40 milliseconds */
+    delay(40);
+    sprite.x += speedX;
+    sprite.y += speedY;
+    /* If right boundary is reached, reverse X direction */
+    if (sprite.x == (128 - spriteWidth)) speedX = -speedX;
+    /* If left boundary is reached, reverse X direction */ 
+    if (sprite.x == 0) speedX = -speedX;
+    /* Sprite height is always 8 pixels. Reverse Y direction if bottom boundary is reached. */
+    if (sprite.y == (64 - 8)) speedY = -speedY;
+    /* If top boundary is reached, reverse Y direction */
+    if (sprite.y == 0) speedY = -speedY;
+    /* Erase sprite on old place. The library knows old position of the sprite. */
+    sprite.eraseTrace();
+    /* Draw sprite on new place */
+    sprite.draw();
+}
+
+
+
+