Bodmer
40d35b1892
Reference to particular drivers in examples have been removed as multiple display drivers are now supported. Tabs replaced by spaces in header file by file editor. RPi TFT with write strobe SPI clock rate dropped to 20MHz (display cannot cope with new high rate siWriteBlock() function)
166 lines
4.1 KiB
Arduino
166 lines
4.1 KiB
Arduino
//The Game of Life, also known simply as Life, is a cellular automaton
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//devised by the British mathematician John Horton Conway in 1970.
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// https://en.wikipedia.org/wiki/Conway's_Game_of_Life
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#include <SPI.h>
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#include <TFT_eSPI.h> // Hardware-specific library
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TFT_eSPI tft = TFT_eSPI(); // Invoke custom library
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//#define GRIDX 80
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//#define GRIDY 60
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//#define CELLXY 4
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#define GRIDX 160
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#define GRIDY 120
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#define CELLXY 2
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#define GEN_DELAY 0
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//Current grid
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uint8_t grid[GRIDX][GRIDY];
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//The new grid for the next generation
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uint8_t newgrid[GRIDX][GRIDY];
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//Number of generations
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#define NUMGEN 600
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uint16_t genCount = 0;
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void setup() {
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//Set up the display
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tft.init();
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tft.setRotation(3);
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tft.fillScreen(TFT_BLACK);
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tft.setTextSize(1);
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tft.setTextColor(TFT_WHITE);
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tft.setCursor(0, 0);
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}
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void loop() {
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//Display a simple splash screen
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tft.fillScreen(TFT_BLACK);
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tft.setTextSize(2);
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tft.setTextColor(TFT_WHITE);
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tft.setCursor(40, 5);
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tft.println(F("Arduino"));
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tft.setCursor(35, 25);
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tft.println(F("Cellular"));
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tft.setCursor(35, 45);
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tft.println(F("Automata"));
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delay(1000);
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tft.fillScreen(TFT_BLACK);
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initGrid();
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genCount = NUMGEN;
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drawGrid();
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//Compute generations
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for (int gen = 0; gen < genCount; gen++)
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{
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computeCA();
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drawGrid();
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delay(GEN_DELAY);
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for (int16_t x = 1; x < GRIDX-1; x++) {
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for (int16_t y = 1; y < GRIDY-1; y++) {
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grid[x][y] = newgrid[x][y];
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}
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}
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}
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}
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//Draws the grid on the display
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void drawGrid(void) {
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uint16_t color = TFT_WHITE;
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for (int16_t x = 1; x < GRIDX - 1; x++) {
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for (int16_t y = 1; y < GRIDY - 1; y++) {
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if ((grid[x][y]) != (newgrid[x][y])) {
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if (newgrid[x][y] == 1) color = 0xFFFF; //random(0xFFFF);
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else color = 0;
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tft.fillRect(CELLXY * x, CELLXY * y, CELLXY, CELLXY, color);
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}
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}
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}
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}
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//Initialise Grid
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void initGrid(void) {
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for (int16_t x = 0; x < GRIDX; x++) {
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for (int16_t y = 0; y < GRIDY; y++) {
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newgrid[x][y] = 0;
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if (x == 0 || x == GRIDX - 1 || y == 0 || y == GRIDY - 1) {
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grid[x][y] = 0;
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}
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else {
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if (random(3) == 1)
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grid[x][y] = 1;
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else
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grid[x][y] = 0;
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}
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}
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}
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}
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//Compute the CA. Basically everything related to CA starts here
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void computeCA() {
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for (int16_t x = 1; x < GRIDX; x++) {
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for (int16_t y = 1; y < GRIDY; y++) {
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int neighbors = getNumberOfNeighbors(x, y);
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if (grid[x][y] == 1 && (neighbors == 2 || neighbors == 3 ))
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{
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newgrid[x][y] = 1;
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}
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else if (grid[x][y] == 1) newgrid[x][y] = 0;
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if (grid[x][y] == 0 && (neighbors == 3))
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{
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newgrid[x][y] = 1;
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}
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else if (grid[x][y] == 0) newgrid[x][y] = 0;
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}
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}
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}
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// Check the Moore neighborhood
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int getNumberOfNeighbors(int x, int y) {
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return grid[x - 1][y] + grid[x - 1][y - 1] + grid[x][y - 1] + grid[x + 1][y - 1] + grid[x + 1][y] + grid[x + 1][y + 1] + grid[x][y + 1] + grid[x - 1][y + 1];
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}
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/*
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The MIT License (MIT)
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Copyright (c) 2016 RuntimeProjects.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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