import greenfoot.*;

import java.awt.*;
import javax.swing.*;
import java.awt.image.*;

import java.util.ArrayList;
import java.util.List;
import java.util.Collections;


public class RaY extends World
{
    int[] obbX = {900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900,900};
    double[] obbY = {0,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290};
    int x,y,color=0,score=0,bestScore=0,health=3,offY,alpha=128,accel;
    double slant;
    double speed = .7,offX=0,count=-1;
    boolean scored=false;
    String me;
    GreenfootImage screen = new GreenfootImage(500,300);

    List<UserInfo> highscores;
    List<UserInfo> nearbyscores;
    final static int scoresToDisplay = 10;
    Color flash;

    boolean scoreScreen = false;

    public RaY() {
        super(500,300, 1);
        for(int f=8;f<20;f++){
            obbX[f] = Greenfoot.getRandomNumber(80)-10;
        }
        screen = getBackground();
    }

    public void act()
    {
        screen.setColor(new Color(color,0,0,alpha));
        screen.fillRect(0,0,500,300);

        //change color
        flashColors();

        if(checkDisplayScores()){
            return;
        }

        drawLines();

        screen.setColor(flash);
        screen.drawString(" "+score,0,12);

        doEnemyActions();

        doPlayerActions();
    }

    public void flashColors(){
        //increase our counter as speed increases
        count = count+speed;
        if(count>15){   //if we have counted high enough
            flash = new Color(Greenfoot.getRandomNumber(200)+50,Greenfoot.getRandomNumber(200)+50,Greenfoot.getRandomNumber(200)+50);
            if(scored)flash = new Color(Greenfoot.getRandomNumber(100),Greenfoot.getRandomNumber(100),Greenfoot.getRandomNumber(100));
            count=0;
        }
    }

    public boolean checkDisplayScores(){
        if(health<=0  &&  !scored){
            UserInfo myInfo = UserInfo.getMyInfo();
            if(myInfo != null){
                bestScore = myInfo.getScore();
                if(score > bestScore){
                    myInfo.setScore(score);
                }
                for(int i=0; i<UserInfo.NUM_INTS; i++){
                    myInfo.setInt(i, 0xAABBCCDD);
                }
                for(int i=0; i<UserInfo.NUM_STRINGS; i++){
                    myInfo.setString(i, "TESTSTRING");
                }
                myInfo.store();
            }

            scored=true;
            highscores = UserInfo.getTop(10);
            nearbyscores = UserInfo.getNearby(10);
        }

        if(scored){
            screen.setColor(flash);
            screen.drawString("Final Score:  " + score, 5, 15);
            screen.drawString("Previous Best: " + bestScore, 5, 30);
            screen.drawString("Top Scores", 120, 60);

            for(int i=0; i<highscores.size(); i++){
                UserInfo u = highscores.get(i);
                screen.drawString(u.getRank() + ". " + u.getUserName() + ": " + u.getScore(), 100, i*20 + 80);

                if(nearbyscores != null){
                    screen.drawString("Similar Scores", 320, 60);
                    u = nearbyscores.get(i);
                    screen.drawString(u.getRank() + ". " + u.getUserName() + ": " + u.getScore(), 300, i*20 + 80);
                }
            }
            return true;
        }
        return false;
    }

    public void drawLines(){
        //draw top lines
        screen.setColor(new Color(70,70,70));
        x = 250+(int)(270*Math.atan2(40-offX,0));
        y = (int)(5000/Math.sqrt((40-offX)*(40-offX)));
        screen.drawLine(250,150,x,150-(int)(y/2)+(int)(.002*(250-x)*slant));
        x = 250+(int)(270*Math.atan2(-40-offX,0));
        y = (int)(5000/Math.sqrt((-40-offX)*(-40-offX)));
        screen.drawLine(250,150,x,150-(int)(y/2)+(int)(.002*(250-x)*slant));

        //draw lines on the field
        for(int f=-40;f<=40;f=f+5){
            x = 250+(int)(270*Math.atan2(f-offX,0));
            y = (int)(5000/Math.sqrt((f-offX)*(f-offX)));
            screen.drawLine(250,150,x,150+(int)(y/2)+(int)(.002*(250-x)*slant));
        }
    }

    public void doEnemyActions(){
        for(double k=0; k<1; k+=0.05){
            for(int f=0;f<30;f++){
                x = 250+(int)(270*Math.atan2(obbX[f]-offX,obbY[f]));
                y = (int)(400/Math.sqrt((obbX[f]-offX)*(obbX[f]-offX)  + obbY[f]*obbY[f]));
                offY = 150+(int)(270*Math.atan2(4,obbY[f]));

                screen.drawOval(x-(int)(y/2),offY-(int)(y/2)+(int)(.002*(250-(x-(int)(y/2)))*slant),y,y);
                obbY[f] = obbY[f] - speed*0.05;
                if(obbY[f]<9 && obbY[f]>6 && Math.abs(obbX[f] - offX)<1){   //we're hit!
                    color = 254;
                    obbY[f] = 290;
                    obbX[f] = Greenfoot.getRandomNumber(80)-40;
                    health--;
                }
                if(obbY[f]<5){
                    obbY[f] = 290;
                    obbX[f] = Greenfoot.getRandomNumber(80)-40;
                }
            }
        }
    }

    public void doPlayerActions(){
        if(Greenfoot.isKeyDown("left"))
            accel = accel - 5;
        if(Greenfoot.isKeyDown("right"))
            accel = accel+5;
        slant += (accel-slant)/5.0;
        if(offX+accel/100.0 > 39 || offX+accel/100.0<-39){
            accel = -accel;
        }
        offX = offX + accel/100.0;
        if(accel>0){
            accel = accel - 1;
        }
        if(accel<0){
            accel = accel + 1;
        }
        speed = speed+.0005;
        if(color>0){
            color = color - 2;
        }
        score++;    //increase the score

        //draw the player
        screen.drawRect(240,290,20,10);

        if(Greenfoot.isKeyDown("t") && alpha!=0)
            alpha--;
        if(Greenfoot.isKeyDown("y") && alpha!=255)
            alpha++;
    }
}