148 lines
3.1 KiB
C++
148 lines
3.1 KiB
C++
#include "Arduino_LED_Matrix.h"
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// create LED matrix object
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ArduinoLEDMatrix matrix;
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// initial snake frame
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byte frame[8][12] = {
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
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};
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const uint32_t game_over[] = {
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0x20410809,
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0x600600,
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0x90108204,
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};
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// snake initial coordinates
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int snake_x[96]= {4, 3, 2, 1};
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int snake_y[96]= {3, 3, 3, 3};
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int snake_len= 4;
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//int *snake_x;
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//int *snake_y;
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//snake_x= (int *)malloc(snake_len * sizeof(int));
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//snake_y= (int *)malloc(snake_len * sizeof(int));
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char direction= 'r';
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int points= 0;
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// apple initial position
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int apple_x= 9;
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int apple_y= 3;
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void setup() {
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//Serial.begin(115200);
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Serial.begin(9600);
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// stard LED matrix
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matrix.begin();
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// btn up
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pinMode(13, INPUT);
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// btn right
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pinMode(12, INPUT);
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// btn bottom
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pinMode(11, INPUT);
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// btn left
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pinMode(10, INPUT);
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}
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void add_tail_block() {
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snake_len++;
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snake_y[snake_len-1]= snake_y[snake_len-2];
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snake_x[snake_len-1]= snake_x[snake_len-2];
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}
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void eat_apple() {
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points++;
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//XXX new apple coordinates
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frame[apple_y][apple_x]= 0;
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apple_x= random(11);
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apple_y= random(7);
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frame[apple_y][apple_x]= 1;
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add_tail_block();
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}
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void move_snake() {
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/*
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starting from head, save curr position w and h
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then for all the snake length the previuos
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body block needs to take the previous block place
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the current tail pos will be set to 0
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*/
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int i=0;
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frame[snake_y[snake_len-1]][snake_x[snake_len-1]]= 0;
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// move and render the snake tail
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for (i= snake_len-1; i > 0; i--) {
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frame[snake_y[i-1]][snake_x[i-1]]= 1;
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snake_x[i]= snake_x[i-1];
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snake_y[i]= snake_y[i-1];
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}
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//move the snake head
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//snake_y[0]= snake_y[0];
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// go right
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if (direction == 'r') {
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snake_x[0]+= 1;
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if (snake_x[0] > 11) snake_x[0]= 0;
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}
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// go bottom
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else if (direction == 'b') {
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snake_y[0]+= 1;
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if (snake_y[0] > 7) snake_y[0]= 0;
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}
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// go left
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else if (direction == 'l') {
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snake_x[0]-= 1;
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if (snake_x[0] < 0) snake_x[0]= 11;
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}
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// go up
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else if (direction == 'u') {
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snake_y[0]-= 1;
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if (snake_y[0] < 0) snake_y[0]= 7;
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}
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if (snake_y[0] == apple_y && snake_x[0] == apple_x) eat_apple();
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// render the snake head
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frame[snake_y[0]][snake_x[0]]= 1;
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}
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void change_direction() {
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// up
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int u= digitalRead(13);
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// right
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int r= digitalRead(12);
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// bottom
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int b= digitalRead(11);
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// left
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int l= digitalRead(10);
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if (u == HIGH && direction != 'b') direction= 'u';
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else if (r == HIGH && direction != 'l') direction= 'r';
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else if (b == HIGH && direction != 'u') direction= 'b';
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else if (l == HIGH && direction != 'r') direction= 'l';
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}
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void loop() {
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Serial.println(points);
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change_direction();
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matrix.renderBitmap(frame, 8, 12);
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delay(300);
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move_snake();
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// XXX to remove, test only
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//direction= 'b';
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//eat_apple();
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//add_tail_block();
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}
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