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| /* ============================================================================ | |
| BROOD CROWD — RENDER-ONLY SWARM DENSITY | |
| ---------------------------------------------------------------------------- | |
| These bodies are deliberately NOT units. They never enter the simulation, | |
| pathfinder, selection, targeting, fog, save, replay or network state. A | |
| visible real Brood ground unit is the only anchor allowed to submit one | |
| deterministic cluster, so crowd art cannot reveal a hidden army or create a | |
| second source of combat truth. | |
| Three LOD meshes keep the illusion honest. Close view adds one subordinate | |
| crawler; tactical view adds a three-body knot; distant view adds four very | |
| cheap silhouettes beneath the strategic icon tier. Every tier remains one | |
| InstMesh draw, and one global frame budget is shared across all three. | |
| ============================================================================ */ | |
| let MF_BROOD_CROWD_STREAMS=null; | |
| let MF_BROOD_CROWD_EPOCH=-1; | |
| let MF_BROOD_CROWD_FRAME={time:0,span:0,perf:1,diff:1,seed:0,budget:0,density:0,queued:0}; | |
| let MF_BROOD_CROWD_STAT={ | |
| enabled:false,quality:'high',budget:0,visibleAnchors:0,eligibleAnchors:0, | |
| clusterInstances:0,visualBodies:0,drawCalls:0,triangles:0, | |
| skippedDensity:0,skippedBudget:0,near:0,mid:0,far:0 | |
| }; | |
| function mfBroodCrowdHash(v){ | |
| v=(v|0)^0x6d2b79f5; | |
| v=Math.imul(v^(v>>>15),v|1); | |
| v^=v+Math.imul(v^(v>>>7),v|61); | |
| return (v^(v>>>14))>>>0; | |
| } | |
| function mfBroodCrowdStringHash(s){ | |
| s=String(s||''); | |
| let h=2166136261; | |
| for(let i=0;i<s.length;i++) h=Math.imul(h^s.charCodeAt(i),16777619); | |
| return h>>>0; | |
| } | |
| /* One crawler is intentionally less detailed than a real Skitterling. Its | |
| small subordinate silhouette prevents a cosmetic body being mistaken for a | |
| target with its own health, while CHITIN/LEAF keep the live organic shader | |
| response and animation instead of introducing a flat sprite species. */ | |
| function mfBroodCrowdCrawler(m,x,z,yaw,scale,legs){ | |
| m.translate(x,0,z);m.rotateY(yaw);m.scale3d(scale,scale,scale); | |
| m.mat(MAT.CHITIN).team(0); | |
| m.sphere(-.25,.72,0,1.34,5,CHIT_D,.55,false); | |
| m.sphere(1.02,.64,0,.72,4,CHITIN,.66,false); | |
| m.sphere(-1.22,.65,0,.62,4,CHIT_D,.58,false); | |
| /* A small team-bearing dorsal plate reads allegiance, but most of the body | |
| keeps authored chitin colour so a dense group does not become a neon blob. */ | |
| m.mat(MAT.CHITIN).team(1); | |
| m.sphere(-.15,1.19,0,.48,4,BIO_TEAM,.34,true); | |
| m.team(0).mat(MAT.LEAF); | |
| const n=Math.max(1,legs|0); | |
| for(let k=0;k<n;k++) for(const sd of [-1,1]){ | |
| const lx=n===1?.05:-.62+k*(1.24/Math.max(1,n-1)); | |
| const lz=sd*(1.12+(k&1)*.10); | |
| m.box(lx,.18,lz,1.72,.22,.25,BIO_LEG,sd*(.30+k*.09)); | |
| } | |
| m.popTransform();m.popTransform();m.popTransform(); | |
| } | |
| function mfBroodCrowdGeo(tier){ | |
| const m=MB(); | |
| if(tier==='near'){ | |
| mfBroodCrowdCrawler(m,2.7,1.2,.28,.82,3); | |
| }else if(tier==='mid'){ | |
| mfBroodCrowdCrawler(m,-2.8,-1.7,-.42,.76,2); | |
| mfBroodCrowdCrawler(m, 2.4,-1.2, .34,.70,2); | |
| mfBroodCrowdCrawler(m, -.2, 2.7,1.92,.66,2); | |
| }else{ | |
| mfBroodCrowdCrawler(m,-2.7,-1.8,-.34,.55,1); | |
| mfBroodCrowdCrawler(m, 2.5,-1.5, .46,.52,1); | |
| mfBroodCrowdCrawler(m,-1.7, 2.3,2.36,.48,1); | |
| mfBroodCrowdCrawler(m, 2.0, 2.1,1.18,.46,1); | |
| } | |
| return m.build(); | |
| } | |
| function mfBroodCrowdInit(){ | |
| if(typeof gl==='undefined'||!gl||typeof InstMesh!=='function'||typeof MB!=='function') return false; | |
| const epoch=typeof glEpoch==='number'?glEpoch:0; | |
| if(MF_BROOD_CROWD_STREAMS&&MF_BROOD_CROWD_EPOCH===epoch) return true; | |
| const near=mfBroodCrowdGeo('near'),mid=mfBroodCrowdGeo('mid'),far=mfBroodCrowdGeo('far'); | |
| MF_BROOD_CROWD_STREAMS={ | |
| near:new InstMesh(gl,near,64), | |
| mid:new InstMesh(gl,mid,256), | |
| far:new InstMesh(gl,far,256), | |
| bodies:{near:1,mid:3,far:4}, | |
| tris:{near:near.count/3,mid:mid.count/3,far:far.count/3} | |
| }; | |
| MF_BROOD_CROWD_EPOCH=epoch; | |
| return true; | |
| } | |
| function mfBroodCrowdBeginFrame(time,ortho,perf,difficulty){ | |
| const quality=typeof mfGfxKey==='function'?mfGfxKey():'high'; | |
| const base=quality==='low'?96:quality==='medium'?160:256; | |
| const p=Number.isFinite(perf)?perf:1; | |
| /* Population pressure already drives perfScale. Honour that signal here | |
| rather than making the presentation layer compete with authoritative AI. */ | |
| const budget=p<.36?Math.min(base,64):p<.56?Math.min(base,112):base; | |
| const d=Math.max(0,Math.min(2,difficulty|0)); | |
| const density=[.28,.58,1.0][d]; | |
| const mapSeed=(typeof MAPDEFS!=='undefined'&&typeof curMap!=='undefined'&&MAPDEFS[curMap])? | |
| (MAPDEFS[curMap].seed|0):mfBroodCrowdStringHash(typeof curMap!=='undefined'?curMap:''); | |
| MF_BROOD_CROWD_FRAME={ | |
| time:Number.isFinite(time)?time:0,span:Number.isFinite(ortho)?ortho:0, | |
| perf:p,diff:d,seed:mapSeed,budget,density,queued:0 | |
| }; | |
| MF_BROOD_CROWD_STAT={ | |
| enabled:budget>0,quality,budget,visibleAnchors:0,eligibleAnchors:0, | |
| clusterInstances:0,visualBodies:0,drawCalls:0,triangles:0, | |
| skippedDensity:0,skippedBudget:0,near:0,mid:0,far:0 | |
| }; | |
| if(!mfBroodCrowdInit()){ MF_BROOD_CROWD_STAT.enabled=false; return false; } | |
| MF_BROOD_CROWD_STREAMS.near.clear(); | |
| MF_BROOD_CROWD_STREAMS.mid.clear(); | |
| MF_BROOD_CROWD_STREAMS.far.clear(); | |
| return true; | |
| } | |
| /* Called only after the real anchor passed camera and fog visibility gates. | |
| isBrood must come from the resolved faction kit, never from an assumed team | |
| number: an AI commander can field the Brood kit in an ordinary seat. */ | |
| function mfBroodCrowdQueue(unitIndex,type,x,y,h,yaw,T,teamColour,uLod,iconQ,moving,isBrood){ | |
| MF_BROOD_CROWD_STAT.visibleAnchors++; | |
| if(!MF_BROOD_CROWD_STAT.enabled||!isBrood||!T||T.air||T.naval||T.cat==='hero'||T.hero||T.size>24) return false; | |
| MF_BROOD_CROWD_STAT.eligibleAnchors++; | |
| const F=MF_BROOD_CROWD_FRAME; | |
| const hv=mfBroodCrowdHash((unitIndex|0)^Math.imul((type|0)+17,0x45d9f3b)^F.seed); | |
| if((hv&65535)/65535>F.density){ MF_BROOD_CROWD_STAT.skippedDensity++; return false; } | |
| if(F.queued>=F.budget){ MF_BROOD_CROWD_STAT.skippedBudget++; return false; } | |
| const iq=Number.isFinite(iconQ)?iconQ:0; | |
| let tier; | |
| if(iq>.12||F.span>1800||uLod===1) tier='far'; | |
| else if(F.span>760) tier='mid'; | |
| else tier='near'; | |
| /* Close view is where a tethered cosmetic body is easiest to notice. Keep | |
| only one in five eligible anchors there; mid/far carry the mass fantasy. */ | |
| if(tier==='near'&&((hv>>>16)%5)!==0){ MF_BROOD_CROWD_STAT.skippedDensity++; return false; } | |
| const stream=MF_BROOD_CROWD_STREAMS[tier],tc=teamColour||[190,92,230]; | |
| const jitter=.88+((hv>>>24)&255)/255*.22; | |
| const sc=Math.max(.68,Math.min(1.28,(T.size||12)/16))*jitter; | |
| const turn=((hv>>>8)&1023)/1023*6.2831853; | |
| const anim=tier==='far'||F.perf<.36?0:F.time*(moving?6.2:2.05)+(hv&2047)*.0137; | |
| stream.add(x,y,h,sc,yaw+turn,tc[0],tc[1],tc[2],255,sc,anim,0); | |
| F.queued++; | |
| MF_BROOD_CROWD_STAT.clusterInstances++; | |
| MF_BROOD_CROWD_STAT.visualBodies+=MF_BROOD_CROWD_STREAMS.bodies[tier]; | |
| MF_BROOD_CROWD_STAT.triangles+=MF_BROOD_CROWD_STREAMS.tris[tier]; | |
| MF_BROOD_CROWD_STAT[tier]++; | |
| return true; | |
| } | |
| function mfBroodCrowdFlush(){ | |
| if(!MF_BROOD_CROWD_STREAMS||typeof gl==='undefined'||!gl) return; | |
| for(const tier of ['near','mid','far']){ | |
| const stream=MF_BROOD_CROWD_STREAMS[tier]; | |
| if(stream.n){ MF_BROOD_CROWD_STAT.drawCalls++; stream.flush(gl); } | |
| } | |
| } | |
| function mfBroodCrowdStats(){ | |
| return Object.assign({},MF_BROOD_CROWD_STAT); | |
| } | |