//Platformer made by me, using lots of code made by myself with some code from various sources.

//if you are playing this game know that some of it is very difficult
#include <MD_MAX72xx.h>

#define	MAX_DEVICES	2
#define	CS_PIN		10
#define BUTTON_PIN 12

#define HORZ_PIN A1
//x and y is used for displaying to the dot matrix and the yreverse is used for the level collision vertically
float x = 0;
float y = 1;
float yreverse = 6;
//jumpvel and is used for jumping (not named yvel because nothing else affects it)
float jumpvel;
int level = 0;
int arrayoflevel;

const int buzzer = 9;

//i found this function from a guide https://www.instructables.com/two-ways-to-reset-arduino-in-software/
void(* resetFunc) (void) = 0;//declare reset function at address 0


MD_MAX72XX mx = MD_MAX72XX(MD_MAX72XX::PAROLA_HW, CS_PIN, MAX_DEVICES);

//this method of making levels is probably not optimal but its easy for me to understand
//0 = empty space, 1 = block
//the commented out array below is an example of a level array
/*
{
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
  }
*/

//There is probably a way to make the levels take less memory,(low memory is why i cant i have too many levels)
//but i feel like 12 levels(my max with this system) is good enough anyways. Also, i dont want to change the way
//levels are implemented.
//game[] contains all of the levels in the game
bool game[12][8][16]=
{
  {
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0},
    {1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1}
  },
  {
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1}, 
    {0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1}, 
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1}, 
    {0,0,0,0,1,1,1,0,0,0,0,0,0,0,1,1}, 
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1}, 
    {1,1,1,0,0,0,0,0,0,0,0,0,0,0,1,1}
  },
  {
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0}, 
    {1,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0}, 
    {0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0}, 
    {1,0,0,1,1,1,0,0,0,0,0,0,0,1,1,1}
  },
  {
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,1,0,0,1,1,1,1,1,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
  },
  {
    {0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0},
    {1,1,1,1,0,0,0,1,1,0,1,1,1,1,1,1}
  },
  {
    {1,1,1,1,1,1,0,0,0,0,0,0,1,0,0,0},
    {1,1,1,1,1,1,0,0,0,0,0,0,1,0,0,0},
    {1,1,1,1,1,1,0,0,0,0,0,0,1,0,0,0},
    {0,0,1,1,1,1,0,0,0,0,0,0,1,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0},
    {1,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0}
  },
  {
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0},
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0},
    {1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0}
  },
  {
    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0},
    {0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0},
    {0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0},
    {0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0},
    {1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0}
  },
  {
    {0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,1},
    {0,1,0,1,0,0,0,0,1,0,0,0,0,0,0,1},
    {0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0},
    {0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,1},
    {0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1},
    {0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
    {0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
    {1,0,0,1,0,0,0,0,1,0,0,0,0,0,0,1}
  }
};

/*
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{1,0,0,0,1,0,0,1,1,0,0,1,0,0,0,1},
{0,1,0,1,0,0,1,0,0,1,0,0,1,0,1,0},
{0,0,1,0,0,0,1,1,1,1,0,0,0,1,0,0},
{0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0},
{0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
*/

//argument one should be an element of a level layout array
void renderline(bool row_of_level[], int row_of_screen){
  for(int i = 0; i < 16; i++){ 
    if (row_of_level[i] == true){
      mx.setPoint(row_of_screen,i,true);
    }
    else{
      mx.setPoint(row_of_screen,i,false);
    }
  }

}

void renderlevel(bool array[][16]){
  
  for(int i = 0, o = 7; i < 8; i++, o--){
    renderline(array[i],o);
  }
}

void levelend(){
  x = 0;
  y = 1;
  yreverse = 6;
  level++;
  renderlevel(game[level]);
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  mx.begin();
  mx.control(MD_MAX72XX::INTENSITY, MAX_INTENSITY / 2);
  mx.clear();
  renderlevel(game[level]);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  Serial.print("Level "); 
  Serial.println(level + 1);
  pinMode(buzzer, OUTPUT);
}


void loop() {
  // put your main code here, to run repeatedly:
  int horz = analogRead(HORZ_PIN);
  int buttonvalue = digitalRead((BUTTON_PIN));
  //gravity+collision
  if (game[level][static_cast<int>(yreverse)+1][static_cast<int>(x)]==0||y>=7){
    mx.setPoint(static_cast<int>(y+0.5),static_cast<int>(x),false); 
    y-=0.5; 
    yreverse+=0.5;
    //Serial.println(F("in the air"));
  }
  else{
    y=static_cast<int>(y+0.5);
    yreverse=static_cast<int>(yreverse+0.5);}
  //end of gravity+collision
  if (buttonvalue == HIGH) {
    
  }
  if (buttonvalue == LOW) {
    if (game[level][static_cast<int>(yreverse)+1][static_cast<int>(x)]==1 && game[level][static_cast<int>(yreverse)-1][static_cast<int>(x)]==0){jumpvel=2; tone(buzzer, 250);}
  }
  if (game[level][static_cast<int>(yreverse)+1][static_cast<int>(x)]==0 && jumpvel - 0.5 != -0.5){jumpvel-=0.5;}
  mx.setPoint(static_cast<int>(y+0.5),static_cast<int>(x),false);

  //this is a certified goto moment
  before_y_up:
  if(game[level][static_cast<int>(yreverse - jumpvel)][static_cast<int>(x)]==0){y += jumpvel; yreverse -= jumpvel;}
  else if(jumpvel>0) {jumpvel-=0.5; goto before_y_up;}


  if (horz < 400 && static_cast<int>(x) + 0.5 <= 15 && game[level][static_cast<int>(yreverse)][static_cast<int>(x)+1]==0){
    mx.setPoint(static_cast<int>(y+0.5),static_cast<int>(x),false);
    x += 0.5;}
  if (horz > 600 && static_cast<int>(x) - 0.5 >= 0 && game[level][static_cast<int>(yreverse)][static_cast<int>(x)-1]==0){
    mx.setPoint(static_cast<int>(y+0.5),static_cast<int>(x),false);
    x -= 0.5;}

  /*
  //good code for testing position:
  Serial.print("X:");
  Serial.println(x);
  Serial.print("Y:");
  Serial.println(y);
  Serial.print("Y REVERSE:");
  Serial.println(yreverse);
  */
  //somehow get inside a block
  if (game[level][static_cast<int>(yreverse)][static_cast<int>(x)]==1){yreverse--;renderlevel(game[level]);}
  //fall into pit
  if (y <= 0){tone(buzzer,150);delay(200);tone(buzzer,100);delay(400);noTone(buzzer); mx.clear(); delay(500); resetFunc(); }
  //beat level
  if (x == 15 && horz < 400){
    for (int i=0, o=300; i<16; i++){tone(buzzer, o); o+=20; delay(80); mx.setColumn(i,-1);}\
    tone(buzzer, 640);
    delay(400);
    noTone(buzzer);
    delay(400);
    if(level!=-1){levelend();Serial.print("Level "); Serial.println(level + 1);};
  }
  mx.setPoint(static_cast<int>(y+0.5),static_cast<int>(x),true);
  mx.update();
  delay(50);
  noTone(buzzer); 
}