import java.util.*;

public class PJ_Battle{
    /****************************************Variables****************************************/
    //Base Variables
    public static Scanner scan = new Scanner(System.in);
    public static Random rand = new Random();
    public static int pokemonNum = 4;
    public static int moveNum = 2;
    public static int n = 0;
    //Title
    public static String TITLE = "Pokemon Java Battle System";
    //User Stats
    public static int cLVL = 5;
    public static int hp = 1;
    public static int cAtk;
    public static int cDef;
    public static int exp = 0;
    //Enemy Stats
    public static int elvl;
    public static int enemy;
    public static int eHP = 1;
    public static int eAtk;
    public static int eDef;
    //Other Stuff
    public static String pokemonChoice;
    public static int pChoice;
    public static int mChoice;
    public static int dmg;
    public static int gain;
    public final static String wS = "   ";
    //Arrays
    public static String[][] pokemon = new String[pokemonNum][4];
    public static String[][] moves = new String[pokemonNum][moveNum];
    public static int[] lvl = new int[100];
    public static String[] statements = new String[100];

    /****************************************Load Game****************************************/
    public static void main(String[] args) {
        /****************************************Data****************************************/
        //Levels
        lvl[n++] = 0;
        lvl[n++] = 0;
        lvl[n++] = 0;
        lvl[n++] = 0;
        lvl[n++] = 50;
        lvl[n++] = 150;
        lvl[n++] = 250;

        //Pokemon
        /*Template:
          pokemon[INDEX][0] = "Name";
          pokemon[INDEX][1] = "Heath";
          pokemon[INDEX][2] = "Attack";
          pokemon[INDEX][3] = "Defense";
        */
        //Pikachu
        pokemon[0][0] = "Pikachu";
        pokemon[0][1] = "19";
        pokemon[0][2] = "10";
        pokemon[0][3] = "7";
        //Charmander
        pokemon[1][0] = "Charmander";
        pokemon[1][1] = "20";
        pokemon[1][2] = "11";
        pokemon[1][3] = "5";
        //Squirtle
        pokemon[2][0] = "Squirtle";
        pokemon[2][1] = "18";
        pokemon[2][2] = "8";
        pokemon[2][3] = "8";
        //Bulbasuar
        pokemon[3][0] = "Bulbasuar";
        pokemon[3][1] = "22";
        pokemon[3][2] = "7";
        pokemon[3][3] = "9";

        //Moves
        moves[0][0] = "Tackle";
        moves[0][1] = "Growl";
        moves[1][0] = "Scratch";
        moves[1][1] = "Growl";
        moves[2][0] = "Tackle";
        moves[2][1] = "Tail Whip";
        moves[3][0] = "Tackle";
        moves[3][1] = "Growl";

        /****************************************Begin Game****************************************/
        System.out.println("Welcome to " + TITLE);
        System.out.println("Available Pokemon:");
        for(int x=0;x<pokemon.length;x++){
            System.out.println(x+1 + ") " + pokemon[x][0]);
        }
        System.out.print("Choose a pokemon: ");
        //Prompt for pokemon choice.
        pChoice = scan.nextInt() - 1;
        pokemonChoice = pokemon[0][pChoice];

        //Print chosen pokemon.
        System.out.println("\nYou chose " + pokemonChoice + ".\n");

        //Begin Gameplay
        while(true){
            battle();
        }
    }

    /****************************************Battle****************************************/
    public static void battle(){
            enemy = rand.nextInt(pokemonNum);
            hp = Integer.parseInt(pokemon[pChoice][1]) + (cLVL-4 * 2);
            cAtk = Integer.parseInt(pokemon[pChoice][2]) + (cLVL-4 * 2);
            cDef = Integer.parseInt(pokemon[pChoice][3]) + (cLVL-4 * 2);
            eHP = Integer.parseInt(pokemon[enemy][1]) + (cLVL-4 * 2);
            eAtk = Integer.parseInt(pokemon[enemy][2]) + (cLVL-4 * 2);
            eDef = Integer.parseInt(pokemon[enemy][2]) + (cLVL-4 * 2);
            initPrintStats(enemy);
    }

    /****************************************Attack****************************************/
    public static void attack(int enemy){
        System.out.print("Choose A Move: ");
        mChoice = scan.nextInt();
        attackCalc(mChoice, enemy);
    }

    public static void attackCalc(int move, int enemy){
        //Calculate Damage - You.
        boolean miss = rand.nextInt(100)<15?true:false;
        boolean evade = rand.nextInt(100)<10?true:false;
        if(miss==false && evade==false){
            dmg = ((((2*cLVL/5+2)*cAtk*cAtk/eDef)/ 50) + 2)*rand.nextInt(5);;
            if(dmg<=0) dmg = 4;
            eHP = eHP - dmg<0?0:eHP-dmg;
            //Print Outcome
            System.out.println("\nYou attack the foe's " + pokemon[enemy][0] + " for " + dmg + " damage.");

            System.out.println();

            printStats(enemy);
        }
        else if(miss==true){
            System.out.println("\nYour attack missed.");

            System.out.println();

            printStats(enemy);
        }
        else{
            System.out.println("\nThe foe evaded your attack.");

            System.out.println();

            printStats(enemy);
        }
    }

    public static void eCalc(int enemy){
        boolean miss = rand.nextInt(100)<15?true:false;
        boolean evade = rand.nextInt(100)<10?true:false;
        if(miss==false && evade==false){
            dmg = ((((2*cLVL/5+2)*eAtk*eAtk/cDef)/ 50) + 2)*rand.nextInt(5);;
            if(dmg<=0) dmg = 4;
            hp = hp - dmg<0?0:hp-dmg;
            //Print Outcome
            System.out.println("\nThe foe's " + pokemon[enemy][0] + " attacks you for " + dmg + " damage.");

            System.out.println();

            printStats(enemy);
        }
        else if(miss==true){
            System.out.println("\nYour attack missed.");

            System.out.println();

            printStats(enemy);
        }
        else{
            System.out.println("\nThe foe evaded your attack.");

            System.out.println();

            printStats(enemy);
        }
    }

    /****************************************Stats****************************************/
    public static void initPrintStats(int enemy){
        //User Pokemon
        System.out.print("Pokemon: " + pokemonChoice);
        System.out.print(wS + "HP: " + hp);
        System.out.print(wS + "Level: " + cLVL);
        System.out.print(wS + "Experience: " + exp + "/" + lvl[cLVL-1]);
        System.out.println("\nMoves:");
        for(int x=0;x<moves[pChoice].length;x++){
            System.out.println(x + 1 + ") " + moves[pChoice][x]);
        }

        System.out.println();

        //Enemy Pokemon
        //Calculate Level
        boolean lvlR = rand.nextInt(100)>50?true:false;
        //Print enemy stats
        System.out.print("Opponent: " + pokemon[enemy][0]);
        if(lvlR==true){
            eHP -= rand.nextInt(5);
            System.out.print(wS + "HP: " + eHP);
            elvl = cLVL - rand.nextInt(3);
            System.out.print(wS + "Level:" + elvl);
            eAtk += rand.nextInt(elvl);
            eDef += rand.nextInt(elvl);
        }
        else{
            eHP += rand.nextInt(5);
            System.out.print(wS + "HP: " + eHP);
            elvl = cLVL + rand.nextInt(3);
            System.out.print(wS + "Level:" + elvl);
            eAtk -= rand.nextInt(elvl);
            eDef -= rand.nextInt(elvl);
        }

        System.out.println();

        attack(enemy);
    }

    public static void printStats(int enemy){
        //User Pokemon
        System.out.print("Pokemon: " + pokemonChoice);
        System.out.print(wS + "HP: " + hp);
        System.out.print(wS + "Level: " + cLVL);
        System.out.println(wS + "Experience: " + exp + "/" + lvl[cLVL-1]);
        System.out.println("Moves:");
        for(int x=0;x<moves[pChoice].length;x++){
            System.out.println(x + 1 + ") " + moves[pChoice][x]);
        }

        System.out.println();

        //Enemy Pokemon
        //Print enemy stats
        System.out.print("Oponent: " + pokemon[enemy][0]);
        System.out.print(wS + "HP: " + eHP);
        System.out.print(wS + "Level:" + elvl);

        if(eHP<=0){
            System.out.println("\n\nFoe " + pokemon[enemy][0] + " fainted.\n");
            exp(enemy);
            System.out.println(pokemonChoice + " gained " + gain + " experience.\n");
            scan.nextLine();
            battle();
        }
        else{
            System.out.println();
            attack(enemy);
        }
    }

    /****************************************Levels and EXP****************************************/
    public static void exp(int enemy){
        gain = cLVL*rand.nextInt(elvl) + ((Integer.parseInt(pokemon[enemy][2]) + Integer.parseInt(pokemon[enemy][2])/2));
        if(gain<=0)gain = Integer.parseInt(pokemon[enemy][2]);
        exp+=gain;
    }

    public static void level(int leftOver){

    }
}