Cryz/snake_arduino
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implement change direction with buttons

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This commit is contained in:
andrea
2023-11-04 11:06:09 +01:00
parent e337c32ec4
commit 2c2709cce3
1 changed files with 22 additions and 8 deletions
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30
snake_arduino/snake_arduino.ino
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@@ -25,8 +25,7 @@ const uint32_t game_over[] = {
int snake_x[4]= {4, 3, 2, 1}; int snake_x[4]= {4, 3, 2, 1};
int snake_y[4]= {3, 3, 3, 3}; int snake_y[4]= {3, 3, 3, 3};
int snake_len= 4; int snake_len= 4;
// direction 1 right, 2 bottom, 3 left, 4 top char direction= 'r';
int direction= 1;
// apple initial position // apple initial position
//int apple_x= 9; //int apple_x= 9;
@@ -67,22 +66,22 @@ void move_snake() {
//snake_y[0]= snake_y[0]; //snake_y[0]= snake_y[0];
// go right // go right
if (direction == 1) { if (direction == 'r') {
snake_x[0]+= 1; snake_x[0]+= 1;
if (snake_x[0] > 11) snake_x[0]= 0; if (snake_x[0] > 11) snake_x[0]= 0;
} }
// go down // go bottom
else if (direction == 2) { else if (direction == 'b') {
snake_y[0]+= 1; snake_y[0]+= 1;
if (snake_y[0] > 7) snake_y[0]= 0; if (snake_y[0] > 7) snake_y[0]= 0;
} }
// go left // go left
else if (direction == 3) { else if (direction == 'l') {
snake_x[0]-= 1; snake_x[0]-= 1;
if (snake_x[0] < 0) snake_x[0]= 11; if (snake_x[0] < 0) snake_x[0]= 11;
} }
// go up // go up
else if (direction == 4) { else if (direction == 'u') {
snake_y[0]-= 1; snake_y[0]-= 1;
if (snake_y[0] < 0) snake_y[0]= 7; if (snake_y[0] < 0) snake_y[0]= 7;
} }
@@ -92,11 +91,26 @@ void move_snake() {
} }
void change_direction() { void change_direction() {
// up
int u= digitalRead(13);
// right
int r= digitalRead(12);
// bottom
int b= digitalRead(11);
// left
int l= digitalRead(10);
if (u == HIGH && direction != 'b') direction= 'u';
else if (r == HIGH && direction != 'l') direction= 'r';
else if (b == HIGH && direction != 'u') direction= 'b';
else if (l == HIGH && direction != 'r') direction= 'l';
} }
void loop() { void loop() {
change_direction();
matrix.renderBitmap(frame, 8, 12); matrix.renderBitmap(frame, 8, 12);
delay(300); delay(300);
move_snake(); move_snake();
direction= 2; // XXX to remove
direction= 'b';
} }