Snake LED 16x16 matrix game

Here is a classical arcade snake game. It's made on 16x16 led matrix.

Jul 23, 2020

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led matrix

entertainment system

games

Components and supplies

Analog joystick (Generic)

Breadboard (generic)

Jumper wires (generic)

RGB LED Pixel Matrix, NeoPixel NeoMatrix

Arduino UNO

Project description

Code

c_cpp

1#include <FastLED.h>
2
3//matrix settings
4#define NUM_LEDS 256
5#define   DATA_PIN 3
6#define BRIGHTNESS 8
7
8//joystick settings
9#define pinX    A2   // ось X джойстика
10#define pinY    A1  // ось Y джойстика
11#define swPin     2  // кнопка джойстика
12
13int snake[256]; // array of snake elements
14int   snakeSize = 2;  // real snake size 
15int snakeSpeed = 500;
16
17int row;        //   row number
18int col;        // column number
19
20int lastDirection = 135; //   start direction
21int i, newDirection, OlddX = 1, OlddY, f;
22
23int red, green,   blue, fred, fgreen, fblue; //colors
24CRGB leds[NUM_LEDS];
25
26void setup()   {
27  red = random(0, 255);
28  green = random(0, 255);
29  blue = random(0,   255);
30  fred = random(127, 255);
31  fgreen = random(127, 255);
32  fblue =   random(127, 255);
33  
34  Serial.begin(9600);
35  pinMode(pinX, INPUT);
36   pinMode(pinY, INPUT);
37  pinMode(swPin, INPUT);
38  digitalWrite(swPin, HIGH);
39     
40  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
41  FastLED.setBrightness(BRIGHTNESS);
42   for( i=0; i<=255; i++ ){
43    snake[i] = 0;
44  }
45
46  for( i=0; i<=snakeSize;   i++ ){
47    snake[i] = lastDirection+i;
48  }
49    
50  f = random(0, 255);
51   FastLED.show();
52}
53
54int Snakedirection(int last, int dX, int dY ){
55   dX = map(dX, 0, 1000, -1, 1);
56  dY = map(dY, 0, 1000, -1, 1);
57  if(dX ==   0 && dY == 0 && OlddX != dX){
58    dX = OlddX;
59  }
60  if(dY == 0 && dX ==   0 && OlddY != dY){
61    dY = OlddY;
62  }
63  int newDirection = last;
64  if(   dX != 0 ){ // moving in X direction
65    if ( row&1 ){
66        if( col == 0   && dX == 1){ newDirection = last -15; } 
67        else if( col == 15 && dX ==   -1){ newDirection = last +15; }
68        else newDirection = last + dX; // четная
69     } else {
70        if( col == 0 && dX == 1){ newDirection = last +15; }
71         else if( col == 15 && dX == -1 ){ newDirection = last -15; }
72        else   newDirection = last - dX; // не четная
73    }
74  } 
75  if( dY < 0){ // moving   in Y DOWN direction
76    if(row == 15 && dY == -1){newDirection = col;}
77    else   if ( row&1 ){
78      newDirection = last + (col*2)+1; // четная
79    } else   {
80      newDirection = last + (16-col-1)+(16-col); // не четная
81    }
82   }
83  if( dY > 0){ // moving in Y UP direction
84    if( row == 0 && dY == 1){   newDirection = 255 - col;}
85    else if ( row&1 ){
86      newDirection = last   - (last - 16*row) - (16 - col); // четная
87    } else {
88      newDirection   = last - (col*2)-1; // не четная
89    }
90  }
91  OlddX = dX;
92  OlddY = dY;
93   return newDirection;
94}
95
96int snakeMove(int snakeDirection){
97
98  for(   i=0; i<=255; i++ ){
99    if( snake[i] == snakeDirection ){
100      death();
101     }
102  }
103  
104  FastLED.clear();
105  for(i=snakeSize; i>=1; i--){
106    snake[i]   = snake[i-1];
107  }
108  snake[0] = snakeDirection;
109  for( i=0; i<=255; i++   ){
110    if( snake[i] ){
111      leds[snake[i]].setRGB(red, green, blue);
112     }
113  }
114  FastLED.show();
115  row = (int)(snakeDirection/16);  // row number   
116  if ( row&1 ){
117    col = (row+1) * 16 - snakeDirection - 1;
118  } else   {
119    col = snakeDirection - row * 16;
120  }
121  return snakeDirection;
122}
123
124void   food( int eaten ){
125  if( eaten == f ){
126    snakeSize++;
127    f = random(0,   255);
128    red = fred; 
129    green = fgreen; 
130    blue = fblue;
131    fred   = random(0, 255);
132    fgreen = random(0, 255);
133    fblue = random(0, 255);
134     snakeSpeed = snakeSpeed / 1.1;
135  } else {
136    leds[f].setRGB(fred, fgreen,   fblue);
137    FastLED.show();
138  }
139}
140
141void death(){
142    snakeSize   = 2;
143    snakeSpeed = 500;
144    red = 255;
145    green = 0;
146    blue =   0;  
147}
148
149void color(boolean sw){
150  if(!sw){
151
152    red = random(0,255);
153     green = random(0,255);
154    blue = random(0,255);
155    
156  }
157}
158
159void   loop() {
160  color( digitalRead(swPin) );
161  newDirection = Snakedirection(lastDirection,   analogRead(pinX), analogRead(pinY));
162  lastDirection = snakeMove(newDirection);
163   food(newDirection);
164  delay(snakeSpeed);
165}

#include <FastLED.h>

//matrix settings
#define NUM_LEDS 256
#define   DATA_PIN 3
#define BRIGHTNESS 8

//joystick settings
#define pinX    A2   // ось X джойстика
#define pinY    A1  // ось Y джойстика
#define swPin     2  // кнопка джойстика

int snake[256]; // array of snake elements
int   snakeSize = 2;  // real snake size 
int snakeSpeed = 500;

int row;        //   row number
int col;        // column number

int lastDirection = 135; //   start direction
int i, newDirection, OlddX = 1, OlddY, f;

int red, green,   blue, fred, fgreen, fblue; //colors
CRGB leds[NUM_LEDS];

void setup()   {
  red = random(0, 255);
  green = random(0, 255);
  blue = random(0,   255);
  fred = random(127, 255);
  fgreen = random(127, 255);
  fblue =   random(127, 255);
  
  Serial.begin(9600);
  pinMode(pinX, INPUT);
   pinMode(pinY, INPUT);
  pinMode(swPin, INPUT);
  digitalWrite(swPin, HIGH);
     
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
  FastLED.setBrightness(BRIGHTNESS);
   for( i=0; i<=255; i++ ){
    snake[i] = 0;
  }

  for( i=0; i<=snakeSize;   i++ ){
    snake[i] = lastDirection+i;
  }
    
  f = random(0, 255);
   FastLED.show();
}

int Snakedirection(int last, int dX, int dY ){
   dX = map(dX, 0, 1000, -1, 1);
  dY = map(dY, 0, 1000, -1, 1);
  if(dX ==   0 && dY == 0 && OlddX != dX){
    dX = OlddX;
  }
  if(dY == 0 && dX ==   0 && OlddY != dY){
    dY = OlddY;
  }
  int newDirection = last;
  if(   dX != 0 ){ // moving in X direction
    if ( row&1 ){
        if( col == 0   && dX == 1){ newDirection = last -15; } 
        else if( col == 15 && dX ==   -1){ newDirection = last +15; }
        else newDirection = last + dX; // четная
     } else {
        if( col == 0 && dX == 1){ newDirection = last +15; }
         else if( col == 15 && dX == -1 ){ newDirection = last -15; }
        else   newDirection = last - dX; // не четная
    }
  } 
  if( dY < 0){ // moving   in Y DOWN direction
    if(row == 15 && dY == -1){newDirection = col;}
    else   if ( row&1 ){
      newDirection = last + (col*2)+1; // четная
    } else   {
      newDirection = last + (16-col-1)+(16-col); // не четная
    }
   }
  if( dY > 0){ // moving in Y UP direction
    if( row == 0 && dY == 1){   newDirection = 255 - col;}
    else if ( row&1 ){
      newDirection = last   - (last - 16*row) - (16 - col); // четная
    } else {
      newDirection   = last - (col*2)-1; // не четная
    }
  }
  OlddX = dX;
  OlddY = dY;
   return newDirection;
}

int snakeMove(int snakeDirection){

  for(   i=0; i<=255; i++ ){
    if( snake[i] == snakeDirection ){
      death();
     }
  }
  
  FastLED.clear();
  for(i=snakeSize; i>=1; i--){
    snake[i]   = snake[i-1];
  }
  snake[0] = snakeDirection;
  for( i=0; i<=255; i++   ){
    if( snake[i] ){
      leds[snake[i]].setRGB(red, green, blue);
     }
  }
  FastLED.show();
  row = (int)(snakeDirection/16);  // row number   
  if ( row&1 ){
    col = (row+1) * 16 - snakeDirection - 1;
  } else   {
    col = snakeDirection - row * 16;
  }
  return snakeDirection;
}

void   food( int eaten ){
  if( eaten == f ){
    snakeSize++;
    f = random(0,   255);
    red = fred; 
    green = fgreen; 
    blue = fblue;
    fred   = random(0, 255);
    fgreen = random(0, 255);
    fblue = random(0, 255);
     snakeSpeed = snakeSpeed / 1.1;
  } else {
    leds[f].setRGB(fred, fgreen,   fblue);
    FastLED.show();
  }
}

void death(){
    snakeSize   = 2;
    snakeSpeed = 500;
    red = 255;
    green = 0;
    blue =   0;  
}

void color(boolean sw){
  if(!sw){

    red = random(0,255);
     green = random(0,255);
    blue = random(0,255);
    
  }
}

void   loop() {
  color( digitalRead(swPin) );
  newDirection = Snakedirection(lastDirection,   analogRead(pinX), analogRead(pinY));
  lastDirection = snakeMove(newDirection);
   food(newDirection);
  delay(snakeSpeed);
}

Code

c_cpp

1#include <FastLED.h>
2
3//matrix settings
4#define NUM_LEDS 256
5#define  DATA_PIN 3
6#define BRIGHTNESS 8
7
8//joystick settings
9#define pinX    A2  // ось X джойстика
10#define pinY    A1  // ось Y джойстика
11#define swPin    2  // кнопка джойстика
12
13int snake[256]; // array of snake elements
14int  snakeSize = 2;  // real snake size 
15int snakeSpeed = 500;
16
17int row;        //  row number
18int col;        // column number
19
20int lastDirection = 135; //  start direction
21int i, newDirection, OlddX = 1, OlddY, f;
22
23int red, green,  blue, fred, fgreen, fblue; //colors
24CRGB leds[NUM_LEDS];
25
26void setup()  {
27  red = random(0, 255);
28  green = random(0, 255);
29  blue = random(0,  255);
30  fred = random(127, 255);
31  fgreen = random(127, 255);
32  fblue =  random(127, 255);
33  
34  Serial.begin(9600);
35  pinMode(pinX, INPUT);
36  pinMode(pinY, INPUT);
37  pinMode(swPin, INPUT);
38  digitalWrite(swPin, HIGH);
39    
40  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
41  FastLED.setBrightness(BRIGHTNESS);
42  for( i=0; i<=255; i++ ){
43    snake[i] = 0;
44  }
45
46  for( i=0; i<=snakeSize;  i++ ){
47    snake[i] = lastDirection+i;
48  }
49    
50  f = random(0, 255);
51  FastLED.show();
52}
53
54int Snakedirection(int last, int dX, int dY ){
55  dX = map(dX, 0, 1000, -1, 1);
56  dY = map(dY, 0, 1000, -1, 1);
57  if(dX ==  0 && dY == 0 && OlddX != dX){
58    dX = OlddX;
59  }
60  if(dY == 0 && dX ==  0 && OlddY != dY){
61    dY = OlddY;
62  }
63  int newDirection = last;
64  if(  dX != 0 ){ // moving in X direction
65    if ( row&1 ){
66        if( col == 0  && dX == 1){ newDirection = last -15; } 
67        else if( col == 15 && dX ==  -1){ newDirection = last +15; }
68        else newDirection = last + dX; // четная
69    } else {
70        if( col == 0 && dX == 1){ newDirection = last +15; }
71        else if( col == 15 && dX == -1 ){ newDirection = last -15; }
72        else  newDirection = last - dX; // не четная
73    }
74  } 
75  if( dY < 0){ // moving  in Y DOWN direction
76    if(row == 15 && dY == -1){newDirection = col;}
77    else  if ( row&1 ){
78      newDirection = last + (col*2)+1; // четная
79    } else  {
80      newDirection = last + (16-col-1)+(16-col); // не четная
81    }
82  }
83  if( dY > 0){ // moving in Y UP direction
84    if( row == 0 && dY == 1){  newDirection = 255 - col;}
85    else if ( row&1 ){
86      newDirection = last  - (last - 16*row) - (16 - col); // четная
87    } else {
88      newDirection  = last - (col*2)-1; // не четная
89    }
90  }
91  OlddX = dX;
92  OlddY = dY;
93  return newDirection;
94}
95
96int snakeMove(int snakeDirection){
97
98  for(  i=0; i<=255; i++ ){
99    if( snake[i] == snakeDirection ){
100      death();
101    }
102  }
103  
104  FastLED.clear();
105  for(i=snakeSize; i>=1; i--){
106    snake[i]  = snake[i-1];
107  }
108  snake[0] = snakeDirection;
109  for( i=0; i<=255; i++  ){
110    if( snake[i] ){
111      leds[snake[i]].setRGB(red, green, blue);
112    }
113  }
114  FastLED.show();
115  row = (int)(snakeDirection/16);  // row number  
116  if ( row&1 ){
117    col = (row+1) * 16 - snakeDirection - 1;
118  } else  {
119    col = snakeDirection - row * 16;
120  }
121  return snakeDirection;
122}
123
124void  food( int eaten ){
125  if( eaten == f ){
126    snakeSize++;
127    f = random(0,  255);
128    red = fred; 
129    green = fgreen; 
130    blue = fblue;
131    fred  = random(0, 255);
132    fgreen = random(0, 255);
133    fblue = random(0, 255);
134    snakeSpeed = snakeSpeed / 1.1;
135  } else {
136    leds[f].setRGB(fred, fgreen,  fblue);
137    FastLED.show();
138  }
139}
140
141void death(){
142    snakeSize  = 2;
143    snakeSpeed = 500;
144    red = 255;
145    green = 0;
146    blue =  0;  
147}
148
149void color(boolean sw){
150  if(!sw){
151
152    red = random(0,255);
153    green = random(0,255);
154    blue = random(0,255);
155    
156  }
157}
158
159void  loop() {
160  color( digitalRead(swPin) );
161  newDirection = Snakedirection(lastDirection,  analogRead(pinX), analogRead(pinY));
162  lastDirection = snakeMove(newDirection);
163  food(newDirection);
164  delay(snakeSpeed);
165}

#include <FastLED.h>

//matrix settings
#define NUM_LEDS 256
#define  DATA_PIN 3
#define BRIGHTNESS 8

//joystick settings
#define pinX    A2  // ось X джойстика
#define pinY    A1  // ось Y джойстика
#define swPin    2  // кнопка джойстика

int snake[256]; // array of snake elements
int  snakeSize = 2;  // real snake size 
int snakeSpeed = 500;

int row;        //  row number
int col;        // column number

int lastDirection = 135; //  start direction
int i, newDirection, OlddX = 1, OlddY, f;

int red, green,  blue, fred, fgreen, fblue; //colors
CRGB leds[NUM_LEDS];

void setup()  {
  red = random(0, 255);
  green = random(0, 255);
  blue = random(0,  255);
  fred = random(127, 255);
  fgreen = random(127, 255);
  fblue =  random(127, 255);
  
  Serial.begin(9600);
  pinMode(pinX, INPUT);
  pinMode(pinY, INPUT);
  pinMode(swPin, INPUT);
  digitalWrite(swPin, HIGH);
    
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
  FastLED.setBrightness(BRIGHTNESS);
  for( i=0; i<=255; i++ ){
    snake[i] = 0;
  }

  for( i=0; i<=snakeSize;  i++ ){
    snake[i] = lastDirection+i;
  }
    
  f = random(0, 255);
  FastLED.show();
}

int Snakedirection(int last, int dX, int dY ){
  dX = map(dX, 0, 1000, -1, 1);
  dY = map(dY, 0, 1000, -1, 1);
  if(dX ==  0 && dY == 0 && OlddX != dX){
    dX = OlddX;
  }
  if(dY == 0 && dX ==  0 && OlddY != dY){
    dY = OlddY;
  }
  int newDirection = last;
  if(  dX != 0 ){ // moving in X direction
    if ( row&1 ){
        if( col == 0  && dX == 1){ newDirection = last -15; } 
        else if( col == 15 && dX ==  -1){ newDirection = last +15; }
        else newDirection = last + dX; // четная
    } else {
        if( col == 0 && dX == 1){ newDirection = last +15; }
        else if( col == 15 && dX == -1 ){ newDirection = last -15; }
        else  newDirection = last - dX; // не четная
    }
  } 
  if( dY < 0){ // moving  in Y DOWN direction
    if(row == 15 && dY == -1){newDirection = col;}
    else  if ( row&1 ){
      newDirection = last + (col*2)+1; // четная
    } else  {
      newDirection = last + (16-col-1)+(16-col); // не четная
    }
  }
  if( dY > 0){ // moving in Y UP direction
    if( row == 0 && dY == 1){  newDirection = 255 - col;}
    else if ( row&1 ){
      newDirection = last  - (last - 16*row) - (16 - col); // четная
    } else {
      newDirection  = last - (col*2)-1; // не четная
    }
  }
  OlddX = dX;
  OlddY = dY;
  return newDirection;
}

int snakeMove(int snakeDirection){

  for(  i=0; i<=255; i++ ){
    if( snake[i] == snakeDirection ){
      death();
    }
  }
  
  FastLED.clear();
  for(i=snakeSize; i>=1; i--){
    snake[i]  = snake[i-1];
  }
  snake[0] = snakeDirection;
  for( i=0; i<=255; i++  ){
    if( snake[i] ){
      leds[snake[i]].setRGB(red, green, blue);
    }
  }
  FastLED.show();
  row = (int)(snakeDirection/16);  // row number  
  if ( row&1 ){
    col = (row+1) * 16 - snakeDirection - 1;
  } else  {
    col = snakeDirection - row * 16;
  }
  return snakeDirection;
}

void  food( int eaten ){
  if( eaten == f ){
    snakeSize++;
    f = random(0,  255);
    red = fred; 
    green = fgreen; 
    blue = fblue;
    fred  = random(0, 255);
    fgreen = random(0, 255);
    fblue = random(0, 255);
    snakeSpeed = snakeSpeed / 1.1;
  } else {
    leds[f].setRGB(fred, fgreen,  fblue);
    FastLED.show();
  }
}

void death(){
    snakeSize  = 2;
    snakeSpeed = 500;
    red = 255;
    green = 0;
    blue =  0;  
}

void color(boolean sw){
  if(!sw){

    red = random(0,255);
    green = random(0,255);
    blue = random(0,255);
    
  }
}

void  loop() {
  color( digitalRead(swPin) );
  newDirection = Snakedirection(lastDirection,  analogRead(pinX), analogRead(pinY));
  lastDirection = snakeMove(newDirection);
  food(newDirection);
  delay(snakeSpeed);
}

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