eHUD(); } function moveProjectiles(a,dt){a.forEach(function(p){p.x=wrapX(p.x+p.vx*dt);p.y=wrapY(p.y+p.vy*dt);p.life-=dt})} function friendlyHit(source,owner,allyIndex,amount,kind,x,y){var key=String(source&&source.id||source&&source.fid||kind)+'-'+owner+'-'+allyIndex;if(friendlyHitGuard[key])return false;friendlyHitGuard[key]=performance.now();metrics.friendlyFire++;damage(ships[allyIndex],allyIndex,amount,'friendly');notify(allyIndex,'FRIENDLY FIRE'+(kind==='blast'?' · BLAST':''),750);notify(owner,'FRIENDLY FIRE'+(kind==='blast'?' · BLAST':''),750);burst(x,y,'#d38cff',kind==='blast'?16:12);logA('friendly fire · '+ships[owner].label+' '+(kind==='blast'?'blast caught ':'struck ')+ships[allyIndex].label);return true} function collisions(){ shots.forEach(function(s){ if(level===4){ships.forEach(function(ally,ai){if(ai!==s.owner&&s.life>0&&ally.alive&&distObj(s,ally)<18){s.life=0;friendlyHit(s,s.owner,ai,10,'direct',s.x,s.y)}})} enemies.forEach(function(e){if(s.life>0&&e.hull>0&&distObj(s,e)<18){s.life=0;e.hull-=12+ships[s.owner].build.cannon*4+coordinatedHit(e,s.owner);burst(s.x,s.y,'#ffb36a',6);if(e.hull<=0){e.hull=0;metrics.kills++;progression.levelKills++;ships[s.owner].score+=100;awardRescue(e,s.owner);burst(e.x,e.y,'#ff5b66',14);if(level===1)dropComponent(e.x,e.y);dropPower(e.x,e.y)}}}); meteors.forEach(function(m){if(s.life>0&&!m.resolved&&distObj(s,m)0&&s.alive&&distObj(b,s)<17){b.life=0;damage(s,i,15,'bolt')}})}); meteors.forEach(function(m){ships.forEach(function(s,i){if(!m.resolved&&s.alive&&distObj(m,s)0&&s.alive&&distObj(e,s)<32){e.hull=0;metrics.kills++;progression.levelKills++;if(level===1)dropComponent(e.x,e.y);dropPower(e.x,e.y);damage(s,i,30,'collision');burst(e.x,e.y,'#ff5b66',14)}})}) } function breakShield(s){if(!s.shieldCharges)return;s.shieldCharges=0;s.shieldUntil=0;s.shieldShatterUntil=performance.now()+500;burst(s.x,s.y,'#6ef2ff',34)} function damage(s,i,n,why){if(!s||!s.alive||!Number.isFinite(n)||n<=0)return;var now=performance.now();if(s.shieldCharges>0&&nowH'+s.build.hull+' C'+s.build.cannon+' T'+s.build.thruster+' B'+s.build.bio;var items=[];if(s.shieldCharges>0&&s.shieldUntil>now)items.push('SH '+Math.max(0,(s.shieldUntil-now)/1000).toFixed(1)+'');if(s.spreadUntil>now)items.push('SP '+((s.spreadUntil-now)/1000).toFixed(1)+'');if(s.rapidUntil>now)items.push('RP '+((s.rapidUntil-now)/1000).toFixed(1)+'');if(s.repairUntil>now)items.push('R+');document.querySelector('#powers'+i).innerHTML=items.join('');var band=altitudeBand(s.altitude);document.querySelectorAll('#alt'+i+' span').forEach(function(el){el.classList.toggle('active',Number(el.dataset.band)===band)})}); var speed=level===5?Math.min(599,390+Math.round(levelElapsed*4)):Math.round((Math.hypot(ships[0].vx,ships[0].vy)+Math.hypot(ships[1].vx,ships[1].vy))/2);speedValueEl.textContent=String(s