Guillermo Perez Guillen
Published © Apache-2.0

Space Invaders Game Using Blues And Accelerometer

Innovation of a light and comfortable joystick with Blues and accelerometer useful for people with disabilities while playing

IntermediateFull instructions provided8 hours112

Things used in this project

Hardware components

Blues Swan
Blues Swan
×1
Grove - 3-Axis Digital Accelerometer(±16g)
Seeed Studio Grove - 3-Axis Digital Accelerometer(±16g)
×1
USB-A to Micro-USB Cable
USB-A to Micro-USB Cable
×1

Software apps and online services

PlatformIO IDE
PlatformIO IDE
Visual Studio 2015
Microsoft Visual Studio 2015
Processing
The Processing Foundation Processing

Hand tools and fabrication machines

3D Printer (generic)
3D Printer (generic)

Story

Read more

Custom parts and enclosures

Joystick

Pieces

Schematics

Schematic Diagram

Electrical diagram of the device

Code

main.cpp

Arduino
Code to be uploaded to the Blues Swan board
// AUTHOR: GUILLERMO PEREZ GUILLEN
#include <Arduino.h>
#include <Notecard.h>
#include <NotecardPseudoSensor.h>

#include <Wire.h>
#include "MMA7660.h"
MMA7660 accelemeter;
void setup()
{
	accelemeter.init();  
	Serial.begin(9600);
}
void loop()
{
	int8_t x;
	int8_t y;
	int8_t z;
	float ax,ay,az;

	accelemeter.getXYZ(&x,&y,&z);
	accelemeter.getAcceleration(&ax,&ay,&az);

	int btnval = 0;

	int valX = (ax * 100) + 200;
	int toSendX = map (valX, 100, 300, 50, 950);

	int valY = (ay * 100) + 200;
	int toSendY = map (valY, 100, 300, 950, 50);

  Serial.print(toSendX);//Send xval value
  Serial.print(',');
  Serial.print(toSendY);//Send yval value
  Serial.print(',');
  Serial.print(btnval);//Send btnval value
  Serial.println(','); 
  delay(200);

  delay(100);
}

platformio.ini

Arduino
Code to be uploaded to the Blues Swan board
[env:bw_swan_r5]
platform = ststm32
board = bw_swan_r5
upload_protocol = dfu
framework = arduino
build_flags = -D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC
monitor_speed = 115200
lib_deps = 
	Wire
	blues/Blues Wireless Notecard@^1.4.5
	blues/Blues Wireless Notecard Pseudo Sensor@^1.1.0
	seeed-studio/Accelerometer_MMA7660@^1.0.0

Space_Invaders

Processing
Processing Code
// SPACE INVADERS
// AUTHOR: GUILLERMO PEREZ GUILLEN

import processing.serial.*; //Transferred to the serial library
import processing.sound.*; 


SoundFile file;//Create SoundFile objects file 
FFT fft;       //Create FFT objects fft 
Serial myPort; //Create Serial objects myPort 
PImage img;

int Rw[] = new int[3];
byte inBuffer[] = new byte[100];
int fire[]=new int[1];

Sky stars = new Sky();
Rect rect1;
Box[] boxes;
Time timer;
Drop[] drop;
PImage head;
int totaldrop=0;
int totalboxes=0;

void setup(){
  file = new SoundFile(this,"Linked Horizon.mp3");
  file.play(); 
  size(560,600);
  // Open the serial port and set the baud rate to 9600
  // This experiment blues board is connected to COM23, here please
  myPort = new Serial(this,"COM23",9600);
  img = loadImage("LOGO.png");
  fire[0] = 0;
  smooth();
  rect1=new Rect();
  stars.setup(); 
  head = loadImage("spaceship.png");
  timer=new Time(300);
  drop=new Drop[1000];
  boxes=new Box[100];
  timer.start();
}
void draw(){
  background(0);
  readSensors();
  rect1.setlocation(-Rw[1]/2+275,-Rw[0]/2+550);
  rect1.display();
  stars.move(); 
  stars.display(); 
  imageMode(CENTER);
  image(head,-Rw[1]/2+275,-Rw[0]/2+550);
  if(timer.isFinished()){
    drop[totaldrop]=new Drop();
    boxes[totalboxes]=new Box();
    totaldrop++;
    totalboxes++;
    if(totaldrop>=drop.length){
      totaldrop=0;
    }
    if(totalboxes>=boxes.length){
      totalboxes=0;
    }
    timer.start();
  }
  if(fire[0]==1){
    for(int i=0;i<totaldrop;i++){ 
      drop[i].move();     
      drop[i].display();
    }
  }
  for(int j=0;j<totalboxes;j++){
    boxes[j].move();
    boxes[j].display();
    for(int i=0;i<totaldrop;i++){
      if(drop[i].intersect(boxes[j])){
        boxes[j].caught();
        drop[i].caught1();
      }
      if(rect1.inter(boxes[j])){
        gameover();
      }
    }
  }
  image(img,520,550);
}
void gameover() { 
  fill (240, 40, 40); 
  textSize (60);  //
  textAlign(CENTER); 
  text ("GAME OVER", width/2, height/2);
} 
class Time{
  int savedtime;
  int totaltime;
  Time(int temptotaltime){
    totaltime=temptotaltime;
  }
  void start(){
    savedtime=millis();
  }
  boolean isFinished(){
    int passedtime=millis()-savedtime;
    if(passedtime>totaltime){
      return true;
    }else{
      return false;
    }
  }
}
class Drop{
  float x,y;
  float r;
  float speed;
  color c;
  Drop(){
    if(Rw[2]==0){
    r=3;
    y=-Rw[0]/2+550;
    x=-Rw[1]/2+275;
    speed=25;// 30
    c=color(255,0,0);
    fire[0]=1;
    }
  }
  void move(){
    y=y-speed;
  }
  void display(){
    noStroke();
    fill(c);
    for(int i=9;i>r;i--){
      ellipse(x,y-i*6,i*2,i*2);
    }
  }
  boolean intersect(Box b){
    float distance=dist(x,y,b.x,b.y);
    if(distance<r+55){
      return true;
    }else{
      return false;
    }
  }
  void caught1(){
    speed=0;
    y=-1000;
  }
  void stop2(){
    speed=0;
  }
}
class Box{
  float x = random(width); 
  float y = random(1); 
  int life; 
  int speed;
  Box(){
    life = 3; 
    speed =1; 
  }
  void display(){
    ellipseMode (CENTER); 
    rectMode (CENTER); 
    stroke (255); 
    strokeWeight (1); 
    fill (37, 198, 37); // green    
    rect (x, y-15, 65, 6); 
    rect (x, y-15, 85, 5); 
    arc (x, y-8, 16, 35, PI, PI*2); 
    ellipse (x, y-10, 35, 16); 
    fill (0, 80, 192); // blue
    ellipse (x-26, y-15, 13, 13); 
    ellipse (x+26, y-15, 13, 13); 
    fill (249, 231, 69); // yellow
    ellipse (x+26, y-15, 5, 5); 
    ellipse (x-26, y-15, 5, 5); 
  }
  void move(){
    y=y+speed;
  }
  void caught(){
    speed=0;
    y=-1000;
  }
  void stop1(){
    speed=0;
  }
}
class Sky { 
  int n = 60; 
  float speed = 1; 
  float[] x = new float [n]; 
  float[] y = new float [n]; 
  float[] d = new float [n]; 

Sky () { 
} 

void setup() { 
  for (int i=0; i<n; i++) { 
  if (i%5 == 0) 
  d[i] = random (0, 2); 
  else 
  d[i] = 3; 
  x[i] = random (0, width); 
  y[i] = random (-height, height*2); 
} 
} 
void move() { 
  for (int i=0; i<n; i++) { 
  y[i] += d[i]*speed; 
  if (y[i]>height*2) 
  y[i] = random (-height-100, -height+100); 
} 
} 
void display() { 
  fill (255); 
  noStroke(); 
  for (int i=0; i<n; i++) { 
    ellipse (x[i], y[i], d[i], d[i]); 
  } 
} 
}
class Rect{
  float x;
  float y;
  float w;
  float h;
  Rect(){
    x=0;
    y=0;
    w=85;
    h=60;
  }
  void setlocation(float tempx,float tempy){
    x=tempx;
    y=tempy;
  }
  void display(){
    noStroke();
    fill(0);
    rectMode(CENTER);
    rect(x,y,w,h);
  }
  boolean inter(Box b1){
    float distance1=dist(x+40,y+30,b1.x+40,b1.y+6);
    if(distance1<70){
      return true;
    }else{
      return false;
    }
  }
}
void  readSensors(){
  if(myPort.available()>0){
     if(myPort.readBytesUntil(10,inBuffer)>0){//Read to determine whether the wrap 10BYTE
      String inputString = new String(inBuffer);
      String inputStringArr[] = split(inputString,',');
      Rw[0] = int(inputStringArr[0]);//Read the X value
      Rw[1] = int(inputStringArr[1]);//Read the y value
      Rw[2] = int(inputStringArr[2]);
      Rw[0] = 515 - Rw[0];//Rocker midpoint value 515 into 0
      if(Rw[0]<0){
      Rw[0]=0;
      }
      Rw[1] = Rw[1] - 515;//Converted to negative (rocker line out)
    }
  }
}

space-invaders-game-using-blues-and-accelerometer

Repository

Credits

Guillermo Perez Guillen

Guillermo Perez Guillen

57 projects • 63 followers
Electronics and Communications Engineer (ECE) & Renewable Energy: 14 prizes in Hackster / Hackaday Prize Finalist 2021-22-23

Comments