#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#define OLED_ADDRESS 0x3C
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define NUM_ALIEN_COLUMNS 7
#define NUM_ALIEN_ROWS 3

// bit maps
static const unsigned char PROGMEM nave1 []={
   B00100000,B10000000,
   B00010001,B00000000,
   B00111111,B10000000,
   B01101110,B11000000,
   B11111111,B11100000,
   B10111111,B10100000,
   B10100000,B10100000,
   B00011011,B00000000
};
struct matrix  {
  // base object which most other objects will include
    signed int X;
    signed int Y;  
};

struct nave_structura  {
  matrix Ord;
};
int h=1,s=1;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

nave_structura  naves[NUM_ALIEN_COLUMNS][NUM_ALIEN_ROWS];
void setup() {
display.begin(SSD1306_SWITCHCAPVCC,OLED_ADDRESS);
Inicio_nave();
}
void Inicio_nave() {
  for (int a=0;a<6;a++)
    for (int b=0;b<3;b++){
      naves[a][b].Ord.X=2*(a*8);
      naves[a][b].Ord.Y=2*(b*6);
    }
}

void Mueve_nave(int pos,int mm) {
  for (int a=0;a<6;a++)
    for (int b=0;b<3;b++){
      naves[a][b].Ord.X=naves[a][b].Ord.X+(pos*mm);
    
    }
      
}

void pnave(){
  display.clearDisplay();
  for(int a=0;a<6;a++)
    for (int b=0;b<3;b++){
  display.drawBitmap(naves[a][b].Ord.X,naves[a][b].Ord.Y,nave1,11,8,WHITE);
    }
  display.display();
}
void loop() {

 if ((s==1)){ 
  h++;
  if (h==9) s=-1;
 } 
pnave();
 Mueve_nave(h,s);
delay(300);
if ( (s==-1)){
  h--;
  if (h==2) s=1;
 }



 
}