// ========== RENDERING ==========
// Extends Game.prototype — must be loaded after game.js

Object.assign(Game.prototype, {

_draw(){
    const c=this.cx;
    c.fillStyle=CO.bg;c.fillRect(0,0,CW,CH);
    c.fillStyle=CO.hud;c.fillRect(0,0,CW,HUD_TOP);c.fillRect(0,CH-HUD_BOT,CW,HUD_BOT);
    if(this.state==='start'){this._hud(c);return}
    this._maze(c);this._tLbl(c);this._dDots(c);this._dCyst(c);this._dBio(c);this._dPain(c);this._dPl(c);this._dFx(c);this._hud(c);
},

_maze(c){
    for(let r=0;r<ROWS;r++)for(let col=0;col<COLS;col++){
        const t=MAP[r][col],x=col*TILE,y=r*TILE+HUD_TOP;
        if(t===1){
            c.fillStyle=CO.wall;c.fillRect(x,y,TILE,TILE);
            c.strokeStyle=CO.we;c.lineWidth=1;
            const w=(dr,dc)=>{const rr=r+dr,cc=col+dc;if(rr<0||rr>=ROWS||cc<0||cc>=COLS)return true;const v=MAP[rr][cc];return v===1||v===3};
            if(!w(-1,0)){c.beginPath();c.moveTo(x,y+1.5);c.lineTo(x+TILE,y+1.5);c.stroke()}
            if(!w(1,0)){c.beginPath();c.moveTo(x,y+TILE-1.5);c.lineTo(x+TILE,y+TILE-1.5);c.stroke()}
            if(!w(0,-1)){c.beginPath();c.moveTo(x+1.5,y);c.lineTo(x+1.5,y+TILE);c.stroke()}
            if(!w(0,1)){c.beginPath();c.moveTo(x+TILE-1.5,y);c.lineTo(x+TILE-1.5,y+TILE);c.stroke()}
        }
        else if(t===3){c.fillStyle=CO.gW;c.fillRect(x,y,TILE,TILE)}
        else if(t===4){c.fillStyle=CO.gD;c.fillRect(x,y+TILE*.35,TILE,TILE*.3)}
    }
},

_tLbl(c){
    const ty=T_ROW*TILE+HUD_TOP,h=TILE;c.save();
    c.fillStyle='#7C3AED';c.beginPath();c.moveTo(2,ty+h/2);c.lineTo(18,ty-4);c.lineTo(18,ty+h+4);c.closePath();c.fill();
    c.fillRect(18,ty-2,72,h+4);c.fillStyle='#FFF';c.font='bold 6px "Press Start 2P",monospace';c.textAlign='center';c.textBaseline='middle';
    c.fillText('ANALYSE',54,ty+h/2-3);c.fillText('ZENTRUM',54,ty+h/2+5);
    c.fillStyle='#7C3AED';c.beginPath();c.moveTo(CW-2,ty+h/2);c.lineTo(CW-18,ty-4);c.lineTo(CW-18,ty+h+4);c.closePath();c.fill();
    c.fillRect(CW-90,ty-2,72,h+4);c.fillStyle='#FFF';c.fillText('ANALYSE',CW-54,ty+h/2-3);c.fillText('ZENTRUM',CW-54,ty+h/2+5);c.restore();
},

_dDots(c){c.fillStyle=CO.dot;for(const d of this.dots)if(!d.e)c.fillRect(d.c*TILE+TILE/2-2,d.r*TILE+HUD_TOP+TILE/2-2,4,4)},

_dCyst(c){
    for(const cs of this.cysts){if(!cs.v||cs.e)continue;const x=cs.c*TILE+TILE/2,y=cs.r*TILE+HUD_TOP+TILE/2,sz=TILE*.45;
    c.fillStyle=CO.cys;c.strokeStyle=CO.cysE;c.lineWidth=1.5;c.beginPath();
    for(let i=0;i<6;i++){const a=i*Math.PI/3-Math.PI/6,px=x+Math.cos(a)*sz,py=y+Math.sin(a)*sz;i===0?c.moveTo(px,py):c.lineTo(px,py)}
    c.closePath();c.fill();c.stroke();const sh=.3+.3*Math.sin(this.fr*.1);c.fillStyle=`rgba(255,255,200,${sh})`;c.fillRect(x-2,y-2,4,4)}
},

_dBio(c){
    for(const b of this.bios){const x=b.c*TILE+TILE/2,y=b.r*TILE+HUD_TOP+TILE/2,s=TILE*.38;
    c.fillStyle=CO.bag;c.beginPath();c.moveTo(x-s,y+s);c.lineTo(x-s*.7,y-s*.5);c.lineTo(x-s*.3,y-s*.9);c.lineTo(x+s*.3,y-s*.9);c.lineTo(x+s*.7,y-s*.5);c.lineTo(x+s,y+s);c.closePath();c.fill();
    c.fillStyle=CO.bagS;c.font=`${TILE*.5}px Arial`;c.textAlign='center';c.textBaseline='middle';c.fillText('☣',x,y+1)}
},

_dPain(c){
    for(const p of this.pains){if(p.eaten)continue;const x=p.x+TILE/2,y=p.y+TILE/2,pu=1+.06*Math.sin(p.pulse),r=TILE*.44*pu;
    c.save();c.translate(x,y);c.fillStyle=p.scared?CO.pSc:CO.pB;c.beginPath();c.arc(0,2,r,Math.PI,0,false);c.lineTo(r,4);c.lineTo(-r,4);c.closePath();c.fill();
    if(!p.scared){c.strokeStyle=CO.pBo;c.lineWidth=1.5;[-r*.5,0,r*.5].forEach(bx=>{c.beginPath();c.moveTo(bx,-r*.15);c.lineTo(bx-2,-r*.55);c.lineTo(bx+1,-r*.45);c.lineTo(bx-1,-r*.9);c.stroke()})}
    else{c.fillStyle='#FFF';c.fillRect(-3,-4,2,2);c.fillRect(2,-4,2,2);c.strokeStyle='#FFF';c.lineWidth=1;c.beginPath();for(let i=0;i<5;i++){const qx=-4+i*2;i===0?c.moveTo(qx,1):c.lineTo(qx,i%2===0?1:3)}c.stroke()}
    c.restore()}
},

_dPl(c){
    const p=this.pl,x=p.x+TILE/2,y=p.y+TILE/2,r=TILE*.44;
    c.save();c.translate(x,y);const dir=p.moving?p.dir:p.lastFace;
    c.rotate({right:0,down:Math.PI/2,left:Math.PI,up:-Math.PI/2}[dir]||0);
    if(this.sup){const g=.3+.2*Math.sin(this.fr*.2);c.shadowColor=CO.sup;c.shadowBlur=14;c.fillStyle=`rgba(0,221,255,${g})`;c.beginPath();c.arc(0,0,r+5,0,Math.PI*2);c.fill();c.shadowBlur=0}
    const mo=p.mouth*.45;c.fillStyle=this.sup?'#FF9999':CO.kid;c.beginPath();c.arc(0,0,r,mo,Math.PI*2-mo,false);c.lineTo(0,0);c.closePath();c.fill();
    const ey=dir==='left'?r*.4:-r*.4;
    c.fillStyle=CO.kE;c.beginPath();c.arc(-r*.1,ey,r*.18,0,Math.PI*2);c.fill();
    c.fillStyle='#000';c.beginPath();c.arc(-r*.05,ey,r*.08,0,Math.PI*2);c.fill();c.restore();
},

_dFx(c){
    for(const f of this.fx){const pg=1-f.t/f.mx,al=1-pg;const hr=parseInt(f.co.slice(1,3),16),hg=parseInt(f.co.slice(3,5),16),hb=parseInt(f.co.slice(5,7),16);
    if(f.tp==='glow'){c.fillStyle=`rgba(${hr},${hg},${hb},${al*.4})`;c.beginPath();c.arc(f.x,f.y,12+pg*25,0,Math.PI*2);c.fill()}
    else if(f.tp==='exp'){for(let i=0;i<8;i++){const a=i/8*Math.PI*2,d=pg*28;c.fillStyle=`rgba(255,${0|120+135*(1-pg)},0,${al})`;c.fillRect(f.x+Math.cos(a)*d-2,f.y+Math.sin(a)*d-2,4,4)}}
    else if(f.tp==='burst'){c.strokeStyle=`rgba(${hr},${hg},${hb},${al})`;c.lineWidth=2;c.beginPath();c.arc(f.x,f.y,pg*18,0,Math.PI*2);c.stroke()}}
},

_hud(c){
    c.font='10px "Press Start 2P",monospace';c.textBaseline='middle';const ty=HUD_TOP/2;
    c.fillStyle=CO.hudT;c.textAlign='left';c.fillText('PUNKTE: '+(this.lsc+this.sc),8,ty);
    c.textAlign='center';c.fillText('LEVEL '+this.lv,CW/2,ty-6);
    if(this.sup){c.fillStyle=CO.sup;c.fillText('SUPER: '+Math.ceil(this.supT/FPS)+'s',CW/2,ty+8)}
    const sec=0|this.lt/FPS;c.fillStyle=CO.hudT;c.textAlign='right';c.fillText('ZEIT: '+(0|sec/60)+':'+String(sec%60).padStart(2,'0'),CW-8,ty);
    const by=CH-HUD_BOT/2;
    for(let i=0;i<this.lives;i++){const lx=16+i*26;c.fillStyle=CO.kid;c.beginPath();c.arc(lx,by,8,.3,Math.PI*2-.3);c.lineTo(lx,by);c.closePath();c.fill();c.fillStyle='#FFF';c.beginPath();c.arc(lx-1,by-3,2.5,0,Math.PI*2);c.fill();c.fillStyle='#000';c.beginPath();c.arc(lx,by-3,1,0,Math.PI*2);c.fill()}
    c.fillStyle=CO.bag;c.textAlign='right';c.font='9px "Press Start 2P",monospace';c.fillText('\u2623 x'+Math.max(0,this.combN-this.combD),CW-10,by);
}

});