const playerSize = 50.;
const carSize = 40.;
const playerSpeed=.2;
const PNJSpeed=.02;
const bulletSpeed=playerSpeed*2;
const halfSqrtTwo=0.70710678118;
const defaulthealth=10;

class Player
{
    constructor (id,x,y,name,dir)
    {
        this.name=name;
        this.x=x;
        this.y=y;
        //this.z=z;//correspond to the map. Ex: 0=>main; 1=>arena
        this.id=id;
        this.visibleDir=1;
        this.dir=dir;//0=stand Still
                     //1=North
                     //2=North-East
                     //3=East
                     //4=South-East
                     //5=South
                     //6=South-West
                     //7=West
                     //8=North-West
        this.ammo=10;
        this.health=defaulthealth;
        this.kill=0;
        this.death=0;
    }

    takeDamage(amount,killerId)
    {
        this.health-=amount;
        if(this.health<=0)
        {
            this.death++;
            this.health=defaulthealth;

            net.died(this.id,killerId);
        }
    }

    changeDirection(newDirection){
        this.dir = newDirection;
        if(this.dir!=0){
            this.visibleDir = newDirection;
        }
    }

    update(squares,circles, dt)//update position
    {
        if(this.dir==0)
            return;

        let dx,dy;
        switch(this.dir)
        {
            case 1: dx=0.;dy=-playerSpeed;break;
            case 2: dx=halfSqrtTwo*playerSpeed;dy=-halfSqrtTwo*playerSpeed;break;
            case 3: dx=playerSpeed;dy=0.;break;
            case 4: dx=halfSqrtTwo*playerSpeed;dy=halfSqrtTwo*playerSpeed;break;
            case 5: dx=0.;dy=playerSpeed;break;
            case 6: dx=-halfSqrtTwo*playerSpeed;dy=halfSqrtTwo*playerSpeed;break;
            case 7: dx=-playerSpeed;dy=0.;break;
            case 8: dx=-halfSqrtTwo*playerSpeed;dy=-halfSqrtTwo*playerSpeed;break;
            default:
        }
        this.x += dx*dt;
        this.y += dy*dt;

        squares.forEach(square => {
            if(square.collide(this.x,this.y))
            {
                this.x-=dx*dt;
                this.y-=dy*dt;
                this.dir=0;
                return;
            }
        });
        
        circles.forEach(circle => {
            if(circle.collide(this.x,this.y))
            {
                this.x-=dx*dt;
                this.y-=dy*dt;
                this.dir=0;
                return;
            }
        });
    }

    get angle()
    {
        return (this.visibleDir-3)*3.1415926535/4.;
    }
}

class Bullet
{
    constructor (x,y,dx,dy,id)
    {
        bulletSound.play();
        this.x=x;
        this.y=y;
        this.dx=dx;
        this.dy=dy;
        this.deleted=false;
        this.shooterId=id;
    }

    update(dt)
    {
        if(!this.deleted)
        {
            this.x+=this.dx*dt*bulletSpeed;
            this.y+=this.dy*dt*bulletSpeed;
        }
    }

    checkCollisions(squares,circles)//only the client's player /!\
    {
        if(this.deleted)
            return;

        if(player!=null && player.id!=this.shooterId && Math.sqrt((player.x-this.x)**2+(player.y-this.y)**2)<playerSize/2)
        {
            player.takeDamage(1,this.shooterId);
            this.deleted=true;
            return;
        }
        squares.forEach((square) => {
            if(square.collide(this.x,this.y))
            {
                this.deleted=true;
                return;
            }
        });
        circles.forEach((circle) => {
            if(circle.collide(this.x,this.y))
            {
                this.deleted=true;
                return;
            }
        });
    }

}

class Square
{
    constructor(x,y,width,heigth)
    {
        this.x=x;
        this.y=y;
        this.w=width;
        this.h=heigth;
    }

    collide(x,y)
    {
        return this.x<=x && x<=this.x+this.w && this.y<=y && y<=this.y+this.h;
    }
}

class Circle
{
    constructor(x,y,radius)
    {
        this.x=x;
        this.y=y;
        this.r=radius;
    }

    collide(x,y)
    {
        return (x-this.x)**2+(y-this.y)**2 <= this.r**2;
    }
}

class Car
{
    constructor(type, spawn)
    {
        this.type=type; // 0 circule vers le haut
                        // 1 circule vers le bas

        if(this.type == 1)  { //vers le bas
            this.x=1247;
            this.y=-40;
            this.dir=4;
            this.angle=Math.PI/2;
        } else { //vers le haut
            this.x=947;
            this.y=1000;
            this.dir=2;
            this.angle=-Math.PI/2;            
        }

        this.drift=0;

        this.spawn=spawn;

        this.tick=0;
    }

    collide(x,y)
    {
        let cx=this.x-carSize/2;
        let cy=this.y-carSize/2;
        let collide = (cx<=x && x<=cx+carSize && cy<=y && y<=cy+carSize);
        if(collide) {
            driftSound.play()
            this.drift=1000;
        }
        return collide;
    }

    Update(dt)
    {
        if(this.tick==0 && (new Date()).getSeconds()%20==this.spawn) {
                this.tick=1;
        }

        if(this.tick==0)
            return;
        
        this.ChangeDirection();

        switch (this.dir) {
          case 1:
            this.x=this.x+this.tick
            break;
          case 2:
            this.y=this.y-this.tick
            break;
          case 3:
            this.x=this.x-this.tick
            break;
          case 4:
            this.y=this.y+this.tick
            break;
        }
        if(this.drift > 0) {
            this.drift-=dt;
        }else{
            this.drift = 0;
        }
    }

    pseudoaleatoire() {
        return Math.floor(Date.now()/1000)%10
    }

    ChangeDirection()
    {
        if(this.type == 1) {
            if(this.x==1247 && this.y==36) {
                this.dir=3
                this.angle=-Math.PI
            } else if(this.x==430 && this.y==36) {
                this.dir=4
                this.angle=Math.PI/2
            } else if(this.x==430 && this.y==330) {
                //tourner à droite
                this.dir=1
                this.angle=0
            } else if(this.x==607 && this.y==330) {
                if(this.pseudoaleatoire()>5) {
                    //vers le bas
                    this.dir=4
                    this.angle=Math.PI/2
                }
            } else if(this.x==1247 && this.y==330) {
                //vers le bas
                this.dir=4
                this.angle=Math.PI/2
            } else if(this.x==607 && this.y==551) {
                //vers la gauche
                this.dir=3
                this.angle=Math.PI
            } else if(this.x==190 && this.y==551) {
                //vers le bas
                this.dir=4
                this.angle=Math.PI/2
            } else if(this.x==190 && this.y==877) {
                //vers la droite
                this.dir=1
                this.angle=0
            } else if(this.x==907 && this.y==877) {
                //vers la droite
                this.dir=4
                this.angle=Math.PI/2
            } else if(this.x==1247 && this.y==550) {
                if(this.pseudoaleatoire()>5) {
                    //vers la gauche
                    this.dir=3
                    this.angle=Math.PI
                }
            } else if(this.x==910 && this.y==550) {
                //vers le bas
                this.dir=4
                this.angle=Math.PI/2
            } else if(this.x==1247 && this.y==840) {
                //vers la gauche
                this.dir=3
                this.angle=Math.PI
            } else if(this.x==907 && this.y==840) {
                //vers le bas
                this.dir=4
                this.angle=Math.PI/2
            } else if(this.y>1000) {
                if(this.drift > 0) {
                    this.drift--
                }     //tp
                this.x=1247
                this.y=-40
                this.tick=0;
            }
        } else {
            if(this.x == 1280 && this.y==75) {
                this.dir=2
                this.y=60
                this.angle=-Math.PI/2
            } else if(this.y<-40) {
                this.dir=2
                this.x=947
                this.y=1000
                this.tick=0;
            } else if(this.x==947 && this.y==875 ) {
                if(this.pseudoaleatoire()>7) {
                    //tourner à droite
                    this.dir=1
                    this.angle=0
                }
            } else if(this.x==947 && this.y==839 ) {
                if(this.pseudoaleatoire()>4) {
                    //tourner à gauche
                    this.dir=3
                    this.angle=-Math.PI
                }
            } else if(this.x==947 && this.y==587) {
                this.dir=1
                this.angle=0
            } else if(this.x==1280 && this.y>400) {
                this.dir=2
                this.angle=-Math.PI/2
            } else if(this.x==228 && this.y==839) {
                this.y==823
                this.dir=2
               this.angle=-Math.PI/2
            } else if(this.x==228 && this.y==587) {
                this.dir=1
                this.angle=0
            } else if(this.x==644 && this.y==587) {
                this.dir=2
                this.angle=-Math.PI/2
            } else if(this.dir==2 && this.y==295) {
                this.dir=3
                this.angle=-Math.PI
            } else if(this.x==468 && this.y==295) {
                this.dir=2
                this.angle=-Math.PI/2
            } else if(this.x==468 && this.y==75) {
                this.dir=1
                this.angle=0
            }
        }
    }
}

class PNJ{
    constructor(x, y){
        this.x=x;
        this.y=y;
        this.dir=1;
    }

    checkCollisions(x,y){
        let colliding = false;
        squares.forEach((square) => {
            if(square.collide(x,y))
            {
                colliding = true;
                return;
            }
        });
        circles.forEach((circle) => {
            if(circle.collide(x,y))
            {
                colliding=true;
                return;
            }
        });
        return colliding;
    }

    changeDirection(){
        let newDir = this.dir;
        while(newDir == this.dir){
            newDir = Math.floor(Math.random()*8);
        }
        this.dir = newDir;
    }

    update(dt)
    {
        let dx,dy;
        switch(this.dir)
        {
            case 1: dx=0.;dy=-PNJSpeed;break;
            case 2: dx=halfSqrtTwo*PNJSpeed;dy=-halfSqrtTwo*PNJSpeed;break;
            case 3: dx=PNJSpeed;dy=0.;break;
            case 4: dx=halfSqrtTwo*PNJSpeed;dy=halfSqrtTwo*PNJSpeed;break;
            case 5: dx=0.;dy=PNJSpeed;break;
            case 6: dx=-halfSqrtTwo*PNJSpeed;dy=halfSqrtTwo*PNJSpeed;break;
            case 7: dx=-PNJSpeed;dy=0.;break;
            case 8: dx=-halfSqrtTwo*PNJSpeed;dy=-halfSqrtTwo*PNJSpeed;break;
            default: dx=0;dy=0;break;
        }
        if(!this.checkCollisions(this.x + dx*dt, this.y + dy*dt)){
            this.x += dx*dt;
            this.y += dy*dt;
        }else{
            this.changeDirection();
        }

        if(Math.random()<=0.001){
            this.changeDirection();
        }
        
    }
}