yoyopixel/engine-v3.html at main · SbName/yoyopixel · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>YoYoPixel Engine v3 · Sprite Templates + Smart Shading</title>
<style>
  *{margin:0;padding:0;box-sizing:border-box}
  body{min-height:100vh;display:flex;flex-direction:column;align-items:center;gap:20px;background:#0e0e1a;font-family:'Courier New',monospace;color:#888;padding:30px 20px}
  canvas{image-rendering:pixelated;image-rendering:crisp-edges}
  h1{font-size:14px;letter-spacing:3px;color:#aaa}
  .row{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;align-items:flex-end}
  .card{text-align:center;background:#12122a;border:1px solid #222244;border-radius:8px;padding:12px 12px 8px;transition:border-color .3s}
  .card:hover{border-color:#e94560}
  .card h2{font-size:10px;color:#555;letter-spacing:2px;margin-top:6px}
  .sep{width:100%;height:1px;background:#1a1a3e;margin:4px 0}
  .note{font-size:11px;color:#444;max-width:700px;text-align:center;line-height:1.8}
  .tag{display:inline-block;background:#1a1a3e;color:#5a5a8a;padding:1px 6px;border-radius:3px;font-size:9px;margin:1px}
  .compare{display:flex;gap:8px;align-items:center}
  .compare .label{font-size:9px;color:#555;writing-mode:vertical-rl}
</style>
</head>
<body>
<h1>ENGINE V3 &middot; SPRITE TEMPLATES + HUE-SHIFT SHADING</h1>

<div class="row">
  <div class="card"><canvas id="items_v3"></canvas><h2>SMALL ITEMS (V3)</h2></div>
  <div class="card"><canvas id="items_v2"></canvas><h2>SAME ITEMS (V2 OLD)</h2></div>
</div>
<div class="row">
  <div class="card"><canvas id="furniture_v3"></canvas><h2>FURNITURE (V3)</h2></div>
  <div class="card"><canvas id="barrel_v3"></canvas><h2>BARREL + SACK (V3)</h2></div>
  <div class="card"><canvas id="weapons_v3"></canvas><h2>WEAPONS (V3)</h2></div>
</div>
<div class="row">
  <div class="card"><canvas id="shelf_v3"></canvas><h2>POTION SHELF (V3)</h2></div>
  <div class="card"><canvas id="bed_v3"></canvas><h2>BED (V3)</h2></div>
  <div class="card"><canvas id="table_v3"></canvas><h2>TABLE SET (V3)</h2></div>
</div>

<div class="note">
  <span class="tag">Sprite Templates</span>
  <span class="tag">Hue-Shift Shading</span>
  <span class="tag">Per-Material Shader</span>
  <span class="tag">Adaptive Outline</span>
  <span class="tag">Warm Palette</span>
</div>

<script>
(() => {
'use strict';

// ================================================================
//  ENGINE V3 — Sprite Templates + Hue-Shift Shading
// ================================================================

class PB {
  constructor(w,h){this.w=w;this.h=h;this.data=new Uint8ClampedArray(w*h*4)}
  set(x,y,r,g,b,a){x|=0;y|=0;if(x<0||x>=this.w||y<0||y>=this.h)return;const i=(y*this.w+x)<<2;this.data[i]=r;this.data[i+1]=g;this.data[i+2]=b;this.data[i+3]=a!==undefined?a:255}
  setC(x,y,c,a){this.set(x,y,c[0],c[1],c[2],a)}
  get(x,y){x|=0;y|=0;if(x<0||x>=this.w||y<0||y>=this.h)return null;const i=(y*this.w+x)<<2;if(this.data[i+3]===0)return null;return[this.data[i],this.data[i+1],this.data[i+2],this.data[i+3]]}
  has(x,y){x|=0;y|=0;return x>=0&&x<this.w&&y>=0&&y<this.h&&this.data[((y*this.w+x)<<2)+3]>0}
  blend(x,y,c,sA){x|=0;y|=0;if(x<0||x>=this.w||y<0||y>=this.h)return;const i=(y*this.w+x)<<2;const dA=this.data[i+3]/255,s=(sA!==undefined?sA:255)/255,oA=s+dA*(1-s);if(oA===0)return;this.data[i]=((c[0]*s+this.data[i]*dA*(1-s))/oA)|0;this.data[i+1]=((c[1]*s+this.data[i+1]*dA*(1-s))/oA)|0;this.data[i+2]=((c[2]*s+this.data[i+2]*dA*(1-s))/oA)|0;this.data[i+3]=(oA*255)|0}
}
function blit(s,d,dx,dy){for(let y=0;y<s.h;y++)for(let x=0;x<s.w;x++){const c=s.get(x,y);if(!c)continue;d.set(dx+x,dy+y,c[0],c[1],c[2],c[3])}}
function blitA(s,d,dx,dy,o){o=o||{};if(o.shadow)for(let y=0;y<s.h;y++)for(let x=0;x<s.w;x++){if(!s.has(x,y))continue;d.blend(dx+x+(o.so||[1,2])[0],dy+y+(o.so||[1,2])[1],[0,0,0],((o.sa||.18)*255)|0)};for(let y=0;y<s.h;y++)for(let x=0;x<s.w;x++){const c=s.get(x,y);if(!c)continue;d.set(dx+x,dy+y,c[0],c[1],c[2],c[3])}}
function H(x,y){let n=((x|0)*374761393+(y|0)*668265263+1013904223)|0;n=(((n>>13)^n)*1274126177)|0;return(((n>>16)^n)>>>0)/4294967296}
function hx(s){return[parseInt(s.slice(1,3),16),parseInt(s.slice(3,5),16),parseInt(s.slice(5,7),16)]}
function nz(c,x,y,r){const n=(H(x*7,y*13)-.5)*r;return c.map(v=>Math.max(0,Math.min(255,(v+n)|0)))}
function pk(a,x,y){return[...a[Math.floor(H(x,y)*a.length)%a.length]]}
function inE(x,y,cx,cy,rx,ry){const dx=(x-cx)/rx,dy=(y-cy)/ry;return dx*dx+dy*dy<=1}
function inRR(x,y,x1,y1,x2,y2,r){if(x<x1||x>=x2||y<y1||y>=y2)return false;for(const[cx,cy]of[[x1+r,y1+r],[x2-r,y1+r],[x1+r,y2-r],[x2-r,y2-r]]){if((x<x1+r||x>=x2-r)&&(y<y1+r||y>=y2-r)){const dx2=x-cx,dy2=y-cy;if(dx2*dx2+dy2*dy2>r*r)return false}}return true}

// ================================================================
//  V3 CORE: Hue-Shift Shading
// ================================================================

// Replace dk/lt with hue-aware shade function
// amount: -1 (full shadow) to +1 (full highlight)
// warmth: how much to shift hue (>0 = warm highlights, <0 = cool highlights)
function shade(c, amount, warmth) {
  warmth = warmth !== undefined ? warmth : 0.5;
  const r = c[0], g = c[1], b = c[2];
  if (amount > 0) {
    // Highlight: shift toward warm (add yellow/white)
    return [
      Math.min(255, (r + (255-r) * amount + warmth * amount * 15) | 0),
      Math.min(255, (g + (255-g) * amount + warmth * amount * 8) | 0),
      Math.min(255, (b + (255-b) * amount - warmth * amount * 10) | 0),
    ];
  } else {
    // Shadow: shift toward cool (add blue/purple)
    const a = -amount;
    return [
      Math.max(0, (r * (1-a) - warmth * a * 8) | 0),
      Math.max(0, (g * (1-a) - warmth * a * 15) | 0),
      Math.max(0, (b * (1-a) + warmth * a * 12) | 0),
    ];
  }
}

// Simple dk/lt still available for backwards compat
function dk(c,a){return shade(c,-a,0.5)}
function lt(c,a){return shade(c,a,0.5)}

// ================================================================
//  V3 CORE: Adaptive Outline
// ================================================================
function adaptiveOutlineColor(c) {
  // Saturated dark version: increase saturation, decrease brightness, slight cool shift
  const avg = (c[0]+c[1]+c[2])/3;
  return [
    Math.max(0, (c[0]*0.35 + (c[0]-avg)*0.15 - 5) | 0),
    Math.max(0, (c[1]*0.30 + (c[1]-avg)*0.15 - 8) | 0),
    Math.max(0, (c[2]*0.40 + (c[2]-avg)*0.15) | 0),
  ];
}

// ================================================================
//  V3 CORE: Per-Material Shading Strategies
// ================================================================
const MAT_SHADERS = {
  wood: {
    shade: (c, nx, ny, zoneW, zoneH) => {
      // Directional: top-left bright, bottom-right dark
      const l = (0.5-nx)*0.22 + (0.5-ny)*0.15;
      return shade(c, l, 0.6); // warm wood
    }
  },
  wood_dark: {
    shade: (c, nx, ny) => {
      const l = (0.5-nx)*0.25 + (0.5-ny)*0.18;
      return shade(c, l, 0.5);
    }
  },
  glass: {
    shade: (c, nx, ny, zw, zh, alpha) => {
      // Round cylinder: bright center-left, dark edges
      const center = Math.abs(nx-0.35)*1.5;
      const l = 0.25 - center*0.4 - ny*0.15;
      return shade(c, l, 0.2); // cool glass
    },
    alpha: 200,
    specular: {nx: 0.25, ny: 0.2, r: 0.15, intensity: 0.5}
  },
  liquid: {
    shade: (c, nx, ny) => {
      // Horizontal gradient, surface line highlight
      const surfLine = ny < 0.15 ? 0.3 : 0;
      const l = 0.1 - ny*0.25 + surfLine;
      return shade(c, l, 0.3);
    }
  },
  metal: {
    shade: (c, nx, ny) => {
      // Sharp specular band
      const spec = Math.exp(-((nx-0.3)**2)*30) * 0.4;
      const l = (0.5-ny)*0.2 + spec;
      return shade(c, l, 0.15); // cool metal
    }
  },
  gold: {
    shade: (c, nx, ny) => {
      const spec = Math.exp(-((nx-0.35)**2)*25) * 0.35;
      const l = (0.5-ny)*0.18 + spec;
      return shade(c, l, 0.7); // warm gold
    }
  },
  cloth: {
    shade: (c, nx, ny) => {
      // Soft directional with fold hint
      const fold = Math.sin(nx*8+ny*4)*0.08;
      const l = (0.5-nx)*0.15 + (0.5-ny)*0.12 + fold;
      return shade(c, l, 0.4);
    }
  },
  leather: {
    shade: (c, nx, ny) => {
      const l = (0.5-nx)*0.2 + (0.5-ny)*0.15;
      return shade(c, l, 0.55);
    }
  },
  ceramic: {
    shade: (c, nx, ny) => {
      const roundness = 1 - Math.sqrt((nx-0.4)**2 + (ny-0.4)**2)*1.2;
      return shade(c, roundness*0.25, 0.3);
    }
  },
  gem: {
    shade: (c, nx, ny) => {
      const facet = Math.sin(nx*6)*Math.cos(ny*6)*0.3;
      const spec = (nx<0.3&&ny<0.3) ? 0.4 : 0;
      return shade(c, facet+spec, 0.1);
    }
  },
  paper: {
    shade: (c, nx, ny) => shade(c, (0.5-ny)*0.08, 0.2)
  },
  flat: {
    shade: (c) => c  // no shading
  },
  cork: {
    shade: (c, nx, ny) => shade(c, (0.4-ny)*0.15, 0.5)
  },
  plant: {
    shade: (c, nx, ny) => {
      const l = (0.5-nx)*0.18 + (0.5-ny)*0.2;
      return shade(c, l, 0.4);
    }
  },
  fire: {
    shade: (c, nx, ny) => shade(c, (0.5-ny)*0.5, 0.8) // very warm, brighter on top
  }
};

// ================================================================
//  V3 CORE: Sprite Template Renderer
// ================================================================
function renderSprite(template, colors, scale) {
  scale = scale || 1;
  const w = template.grid[0].length * scale;
  const h = template.grid.length * scale;
  const pb = new PB(w, h);

  // Pass 1: Fill base colors + per-material shading
  const zones = {}; // track bounding box per material zone
  // Pre-scan for zone bounds
  for (let gy = 0; gy < template.grid.length; gy++) {
    const row = template.grid[gy];
    for (let gx = 0; gx < row.length; gx++) {
      const ch = row[gx];
      if (ch === '.' || !template.materials[ch]) continue;
      if (!zones[ch]) zones[ch] = {x1:gx,y1:gy,x2:gx,y2:gy};
      zones[ch].x1 = Math.min(zones[ch].x1, gx);
      zones[ch].y1 = Math.min(zones[ch].y1, gy);
      zones[ch].x2 = Math.max(zones[ch].x2, gx);
      zones[ch].y2 = Math.max(zones[ch].y2, gy);
    }
  }

  for (let gy = 0; gy < template.grid.length; gy++) {
    const row = template.grid[gy];
    for (let gx = 0; gx < row.length; gx++) {
      const ch = row[gx];
      if (ch === '.') continue;
      const mat = template.materials[ch];
      if (!mat) continue;

      const baseColor = colors[ch] || [128,128,128];
      const shader = MAT_SHADERS[mat.type || mat] || MAT_SHADERS.flat;

      // Normalized position within zone
      const z = zones[ch];
      const zw = z.x2 - z.x1 + 1, zh = z.y2 - z.y1 + 1;
      const nx = zw > 1 ? (gx - z.x1) / (zw - 1) : 0.5;
      const ny = zh > 1 ? (gy - z.y1) / (zh - 1) : 0.5;

      // Apply per-material shading
      let c = shader.shade([...baseColor], nx, ny, zw, zh);

      // Per-pixel noise (very subtle)
      c = nz(c, gx*7, gy*13, 5);

      const alpha = shader.alpha || (mat.alpha) || 255;

      // Fill scaled pixels
      for (let sy = 0; sy < scale; sy++)
        for (let sx = 0; sx < scale; sx++)
          pb.setC(gx*scale+sx, gy*scale+sy, c, alpha);
    }
  }

  // Pass 2: Specular highlights
  for (const ch in template.materials) {
    const mat = template.materials[ch];
    const shader = MAT_SHADERS[mat.type || mat] || MAT_SHADERS.flat;
    if (!shader.specular) continue;
    const z = zones[ch]; if (!z) continue;
    const sp = shader.specular;
    const spx = (z.x1 + (z.x2-z.x1) * sp.nx) * scale;
    const spy = (z.y1 + (z.y2-z.y1) * sp.ny) * scale;
    const spr = Math.max(1, sp.r * Math.max(z.x2-z.x1, z.y2-z.y1) * scale);
    for (let y = Math.floor(spy-spr); y <= Math.ceil(spy+spr); y++)
      for (let x = Math.floor(spx-spr); x <= Math.ceil(spx+spr); x++) {
        const c = pb.get(x,y); if (!c) continue;
        const d = Math.sqrt((x-spx)**2+(y-spy)**2);
        if (d > spr) continue;
        const intensity = (1-d/spr)**2 * sp.intensity;
        pb.setC(x, y, shade(c, intensity, 0));
      }
  }

  // Pass 3: Adaptive outline
  const snap = new Uint8ClampedArray(pb.data);
  for (let y = 0; y < pb.h; y++) for (let x = 0; x < pb.w; x++) {
    if (!pb.has(x,y)) continue;
    let isEdge = false;
    for (const [ex,ey] of [[-1,0],[1,0],[0,-1],[0,1]])
      if (!pb.has(x+ex,y+ey)) { isEdge = true; break; }
    if (isEdge) {
      const i = (y*pb.w+x)<<2;
      const c = [snap[i],snap[i+1],snap[i+2]];
      const oc = adaptiveOutlineColor(c);
      pb.data[i]=oc[0]; pb.data[i+1]=oc[1]; pb.data[i+2]=oc[2];
    }
  }

  return pb;
}

// ================================================================
//  RENDER HELPER
// ================================================================
function render(pb,id,scale,bg){
  const cv=document.getElementById(id);cv.width=pb.w*scale;cv.height=pb.h*scale;
  const ctx=cv.getContext('2d');if(bg){ctx.fillStyle=bg;ctx.fillRect(0,0,cv.width,cv.height)}
  for(let y=0;y<pb.h;y++)for(let x=0;x<pb.w;x++){const i=(y*pb.w+x)<<2;if(pb.data[i+3]===0)continue;ctx.fillStyle=`rgb(${pb.data[i]},${pb.data[i+1]},${pb.data[i+2]})`;ctx.fillRect(x*scale,y*scale,scale,scale)}}

// V2 old-style for comparison
function oldDk(c,a){return c.map(v=>Math.max(0,(v*(1-a))|0))}
function oldLt(c,a){return c.map(v=>Math.min(255,(v+(255-v)*a)|0))}
function oldPP(pb){
  let sn=new Uint8ClampedArray(pb.data);
  for(let y=0;y<pb.h;y++)for(let x=0;x<pb.w;x++){if(!pb.has(x,y))continue;const i=(y*pb.w+x)<<2;const c=[sn[i],sn[i+1],sn[i+2]];const l=(.5-x/pb.w)*.1+(.5-y/pb.h)*.06;const a=l>0?oldLt(c,l):oldDk(c,-l);pb.data[i]=a[0];pb.data[i+1]=a[1];pb.data[i+2]=a[2]}
  sn=new Uint8ClampedArray(pb.data);for(let y=0;y<pb.h;y++)for(let x=0;x<pb.w;x++){if(!pb.has(x,y))continue;let e=false;for(const[ex,ey]of[[-1,0],[1,0],[0,-1],[0,1]])if(!pb.has(x+ex,y+ey)){e=true;break};if(e){const i=(y*pb.w+x)<<2;pb.data[i]=(sn[i]*.72)|0;pb.data[i+1]=(sn[i+1]*.72)|0;pb.data[i+2]=(sn[i+2]*.72)|0}}
  return pb}

// ================================================================
//  WARM PALETTES (v3 - more saturated)
// ================================================================
const C = {
  // Wood tones (warm amber, not muddy brown)
  wood_dk:  hx('#4a2810'),
  wood_md:  hx('#7a4820'),
  wood_lt:  hx('#a86830'),
  wood_hi:  hx('#c88848'),
  // Padded/leather
  pad_dk:   hx('#986830'),
  pad_md:   hx('#c89050'),
  pad_lt:   hx('#e0b068'),
  pad_hi:   hx('#f0c878'),
  // Dark frame
  frame_dk: hx('#2a1808'),
  frame_md: hx('#3a2810'),
  frame_lt: hx('#4a3818'),
  // Iron
  iron_dk:  hx('#282830'),
  iron_md:  hx('#404050'),
  iron_lt:  hx('#606070'),
  iron_hi:  hx('#8888a0'),
  // Steel (blue-ish)
  steel_dk: hx('#303848'),
  steel_md: hx('#485868'),
  steel_lt: hx('#688898'),
  steel_hi: hx('#90b8c8'),
  // Gold
  gold_dk:  hx('#705010'),
  gold_md:  hx('#b08020'),
  gold_lt:  hx('#d8a838'),
  gold_hi:  hx('#f0d060'),
  // Glass
  glass_dk: hx('#405060'),
  glass_md: hx('#6888a0'),
  glass_lt: hx('#90b0c8'),
  glass_hi: hx('#c0d8e8'),
  // Potion blue
  pot_blue: hx('#2848a0'),
  pot_green:hx('#208848'),
  pot_red:  hx('#a02020'),
  pot_purple:hx('#6030a0'),
  // Cloth white
  cloth_w:  hx('#e8e0d0'),
  cloth_r:  hx('#a03828'),
  // Cork
  cork:     hx('#907050'),
  // Ceramic
  ceramic:  hx('#c8b898'),
  // Paper
  paper:    hx('#d8c8a0'),
  // Plant
  plant_dk: hx('#1a5a10'),
  plant_md: hx('#308818'),
  plant_lt: hx('#48a828'),
  // Food
  food_y:   hx('#d8a830'),
  food_r:   hx('#c04030'),
  food_g:   hx('#48a838'),
  food_b:   hx('#3858b8'),
  // Fire
  fire:     hx('#f0c040'),
  // Gem
  gem_red:  hx('#c83030'),
  gem_blue: hx('#3060c0'),
};

// ================================================================
//  SPRITE TEMPLATES (hand-crafted shapes + material zones)
// ================================================================

const SPRITES = {
  potion: {
    grid: [
      '..cc..',
      '..kk..',
      '.GGGG.',
      'GLLLLG',
      'GLLLLG',
      'GLLLLG',
      'GLLLLG',
      '.GGGG.',
    ],
    materials: { c:'cork', k:'cork', G:{type:'glass',alpha:200}, L:'liquid' }
  },
  book: {
    grid: [
      '.SSSS.',
      'SPPPP.',
      'SPPPP.',
      'SPPPP.',
      'SPPPP.',
      'SPPPP.',
      '.SSSS.',
    ],
    materials: { S:'leather', P:'paper' }
  },
  trophy: {
    grid: [
      '.GGGG.',
      'GGGGGG',
      'GGGGGG',
      '.GGGG.',
      '..GG..',
      '..GG..',
      '.MMMM.',
      '.MMMM.',
    ],
    materials: { G:'gold', M:'wood' }
  },
  sack: {
    grid: [
      '..rr..',
      '..CC..',
      '.CCCC.',
      'CCCCCC',
      'CCCCCC',
      'CCCCCC',
      '.CCCC.',
    ],
    materials: { r:'cloth', C:'cloth' }
  },
  bowl: {
    grid: [
      '.FFFF.',
      '.FFFF.',
      'CCCCCC',
      'CCCCCC',
      '.CCCC.',
    ],
    materials: { F:'flat', C:'ceramic' }
  },
  scroll: {
    grid: [
      'R.PPPP.R',
      'RPPPPPPR',
      'RPPPPPPR',
      'RPPPPPPR',
      'R.PPPP.R',
    ],
    materials: { R:'cork', P:'paper' }
  },
  candle: {
    grid: [
      '..f.',
      '.ff.',
      '..W.',
      '.WW.',
      '.WW.',
      '.WW.',
      '.WW.',
      '.MM.',
    ],
    materials: { f:'fire', W:'cloth', M:'metal' }
  },
  dagger: {
    grid: [
      '.M.',
      '.M.',
      '.M.',
      '.M.',
      '.M.',
      '.M.',
      'GMG',
      '.W.',
      '.W.',
      '.W.',
      '.G.',
    ],
    materials: { M:'metal', G:'gold', W:'wood' }
  },
  sword: {
    grid: [
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '..M..',
      '.MMM.',
      'GGGGG',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '.GgG.',
    ],
    materials: { M:'metal', G:'gold', g:'gem', W:{type:'wood_dark'} }
  },
  staff: {
    grid: [
      '.ggg.',
      '.ggg.',
      'GgggG',
      '.GGG.',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '..W..',
      '.GWG.',
      '..W..',
    ],
    materials: { g:'gem', G:'gold', W:'wood' }
  },
  bow: {
    grid: [
      '...W..',
      '..W...',
      '.W....',
      'W.s...',
      'W..s..',
      'W..s..',
      'W..s..',
      'W..s..',
      'W..s..',
      'W.s...',
      '.W....',
      '..W...',
      '...W..',
    ],
    materials: { W:'wood', s:'cloth' }
  },
  vase: {
    grid: [
      '..CC..',
      '.CCCC.',
      '.CCCC.',
      '..CC..',
      '..CC..',
      '.CCCC.',
      'CCCCCC',
      'CCCCCC',
      '.CCCC.',
    ],
    materials: { C:'ceramic' }
  },
  chest: {
    grid: [
      '.MMMMMMMMM.',
      'MWWWWWWWWWM',
      'MWWWWWWWWWM',
      'MMMMMgMMMMM',
      'MWWWWWWWWWM',
      'MWWWWWWWWWM',
      'MWWWWWWWWWM',
      'MMMMMMMMMMM',
    ],
    materials: { M:'metal', W:'wood', g:'gold' }
  },
};

// ================================================================
//  RENDER SPRITES AT SCALE
// ================================================================

function spriteWithColors(name, colorMap, scale) {
  return renderSprite(SPRITES[name], colorMap, scale || 1);
}

// ================================================================
//  DEMO 1: Small items comparison (v3 vs v2)
// ================================================================
const itemsV3 = new PB(120, 50);
for(let y=0;y<50;y++)for(let x=0;x<120;x++)itemsV3.set(x,y,192,192,184,255);

// Potion (blue)
blit(spriteWithColors('potion',{c:C.cork,k:C.cork,G:C.glass_md,L:C.pot_blue},2), itemsV3, 2, 10);
// Potion (green)
blit(spriteWithColors('potion',{c:C.cork,k:C.cork,G:C.glass_md,L:C.pot_green},2), itemsV3, 18, 10);
// Potion (red)
blit(spriteWithColors('potion',{c:C.cork,k:C.cork,G:C.glass_md,L:C.pot_red},2), itemsV3, 34, 10);
// Book (blue)
blit(spriteWithColors('book',{S:C.food_b,P:C.paper},2), itemsV3, 52, 12);
// Book (red)
blit(spriteWithColors('book',{S:C.cloth_r,P:C.paper},2), itemsV3, 66, 12);
// Trophy
blit(spriteWithColors('trophy',{G:C.gold_md,M:C.wood_dk},2), itemsV3, 82, 10);
// Sack
blit(spriteWithColors('sack',{r:C.cork,C:C.pad_dk},2), itemsV3, 98, 12);

// Second row
// Bowl with food
blit(spriteWithColors('bowl',{F:C.food_y,C:C.ceramic},2), itemsV3, 2, 34);
blit(spriteWithColors('bowl',{F:C.food_g,C:C.ceramic},2), itemsV3, 18, 34);
blit(spriteWithColors('bowl',{F:C.food_r,C:C.ceramic},2), itemsV3, 34, 34);
// Scroll
blit(spriteWithColors('scroll',{R:C.cork,P:C.paper},2), itemsV3, 52, 36);
// Candle
blit(spriteWithColors('candle',{f:C.fire,W:C.cloth_w,M:C.iron_md},2), itemsV3, 72, 30);
// Vase
blit(spriteWithColors('vase',{C:C.ceramic},2), itemsV3, 84, 30);
// Chest
blit(spriteWithColors('chest',{M:C.iron_md,W:C.wood_md,g:C.gold_md},2), itemsV3, 100, 32);

render(itemsV3, 'items_v3', 3, '#c0c0b8');

// V2 old style comparison
const itemsV2 = new PB(120, 50);
for(let y=0;y<50;y++)for(let x=0;x<120;x++)itemsV2.set(x,y,192,192,184,255);
// Recreate same items with old approach (flat color + old dk/lt + weak outline)
function oldSprite(template, colorMap, sc) {
  sc=sc||1;const w=template.grid[0].length*sc,h=template.grid.length*sc;const pb=new PB(w,h);
  for(let gy=0;gy<template.grid.length;gy++){const row=template.grid[gy];for(let gx=0;gx<row.length;gx++){const ch=row[gx];if(ch==='.'||!template.materials[ch])continue;const c=colorMap[ch]||[128,128,128];for(let sy=0;sy<sc;sy++)for(let sx=0;sx<sc;sx++)pb.setC(gx*sc+sx,gy*sc+sy,[...c])}}
  return oldPP(pb)}
blit(oldSprite(SPRITES.potion,{c:C.cork,k:C.cork,G:hx('#6888a0'),L:hx('#2848a0')},2),itemsV2,2,10);
blit(oldSprite(SPRITES.potion,{c:C.cork,k:C.cork,G:hx('#6888a0'),L:hx('#208848')},2),itemsV2,18,10);
blit(oldSprite(SPRITES.potion,{c:C.cork,k:C.cork,G:hx('#6888a0'),L:hx('#a02020')},2),itemsV2,34,10);
blit(oldSprite(SPRITES.book,{S:hx('#3858b8'),P:hx('#d8c8a0')},2),itemsV2,52,12);
blit(oldSprite(SPRITES.book,{S:hx('#a03828'),P:hx('#d8c8a0')},2),itemsV2,66,12);
blit(oldSprite(SPRITES.trophy,{G:hx('#b08020'),M:hx('#4a2810')},2),itemsV2,82,10);
blit(oldSprite(SPRITES.sack,{r:hx('#907050'),C:hx('#8a7050')},2),itemsV2,98,12);
blit(oldSprite(SPRITES.bowl,{F:hx('#d8a830'),C:hx('#c8b898')},2),itemsV2,2,34);
blit(oldSprite(SPRITES.bowl,{F:hx('#48a838'),C:hx('#c8b898')},2),itemsV2,18,34);
blit(oldSprite(SPRITES.bowl,{F:hx('#c04030'),C:hx('#c8b898')},2),itemsV2,34,34);
blit(oldSprite(SPRITES.scroll,{R:hx('#907050'),P:hx('#d8c8a0')},2),itemsV2,52,36);
blit(oldSprite(SPRITES.candle,{f:hx('#f0c040'),W:hx('#e8e0d0'),M:hx('#404050')},2),itemsV2,72,30);
blit(oldSprite(SPRITES.vase,{C:hx('#c8b898')},2),itemsV2,84,30);
blit(oldSprite(SPRITES.chest,{M:hx('#404050'),W:hx('#7a4820'),g:hx('#b08020')},2),itemsV2,100,32);
render(itemsV2, 'items_v2', 3, '#c0c0b8');

// ================================================================
//  DEMO 2: Furniture (v3 planks with strong contrast)
// ================================================================
function mkTableV3() {
  const p = new PB(54, 44);
  // Table top — v3 planks with strong gap contrast
  for (let y = 8; y < 34; y++) for (let x = 8; x < 46; x++) {
    const plankIdx = Math.floor((y-8) / 4);
    const inGap = (y-8) % 4 === 0;
    const plankSeed = H(plankIdx * 77, 1);
    // Per-plank base color variation
    const base = shade([...C.wood_md], (plankSeed-0.5)*0.15, 0.5);
    if (inGap) {
      p.setC(x, y, shade(C.frame_dk, -0.1, 0.3)); // deep dark gap
    } else {
      // Within plank: grain + directional shading
      const nx = (x-8)/38, ny = ((y-8)%4)/3;
      const grain = Math.sin(nx*14 + plankSeed*6)*0.08;
      let c = shade(base, (0.5-nx)*0.18 + grain, 0.6);
      c = nz(c, x, y, 4);
      p.setC(x, y, c);
    }
  }
  // Table frame edge
  for (let x = 7; x < 47; x++) { p.setC(x, 7, shade(C.frame_md, 0.1, 0.3)); p.setC(x, 34, shade(C.frame_dk, -0.05, 0.3)); }
  for (let y = 7; y < 35; y++) { p.setC(7, y, shade(C.frame_md, 0.05, 0.3)); p.setC(46, y, shade(C.frame_dk, -0.1, 0.3)); }
  // Chairs (6)
  for (const [cx,cy] of [[14,1],[27,1],[40,1],[14,36],[27,36],[40,36]]) {
    for (let y=cy;y<cy+7;y++) for (let x=cx;x<cx+7;x++) {
      if (!inRR(x,y,cx,cy,cx+7,cy+7,1)) continue;
      const nx=(x-cx)/6, ny=(y-cy)/6;
      p.setC(x, y, nz(shade(C.wood_dk, (0.5-nx)*0.15+(0.5-ny)*0.1, 0.5), x, y, 4));
    }
  }
  // Adaptive outline
  const snap = new Uint8ClampedArray(p.data);
  for (let y=0;y<p.h;y++) for (let x=0;x<p.w;x++) {
    if (!p.has(x,y)) continue;
    let isEdge=false;for(const[ex,ey]of[[-1,0],[1,0],[0,-1],[0,1]])if(!p.has(x+ex,y+ey)){isEdge=true;break}
    if(isEdge){const i=(y*p.w+x)<<2;const c=[snap[i],snap[i+1],snap[i+2]];const oc=adaptiveOutlineColor(c);p.data[i]=oc[0];p.data[i+1]=oc[1];p.data[i+2]=oc[2]}
  }
  return p;
}
render(mkTableV3(), 'furniture_v3', 5, '#c0c0b8');

// ================================================================
//  DEMO 3: Barrel + Sack
// ================================================================
function mkBarrelV3() {
  const p = new PB(48, 40);
  // Barrel
  for (let y = 4; y < 36; y++) for (let x = 22; x < 44; x++) {
    const ny = (y-4)/32, bulge = 1+Math.sin(ny*Math.PI)*0.12;
    if (!inE(x,y,33,20,11*bulge,16)) continue;
    const nx = (x-22)/22;
    const plank = Math.floor(nx*6); const inGap = Math.abs(nx*6-plank-0.5)>0.42;
    if (inGap) { p.setC(x,y,shade(C.frame_dk,-0.05,0.3)); continue; }
    const base = shade([...C.wood_md],(H(plank*77,1)-0.5)*0.12,0.5);
    let c = shade(base,(0.5-nx)*0.2-ny*0.08,0.6);
    p.setC(x,y,nz(c,x,y,4));
  }
  // Metal bands
  for (const by of [7,18,30]) for (let x=23;x<43;x++) {
    if (!p.has(x,by)) continue;
    const nx=(x-23)/20;
    let c = shade(C.iron_md, (0.5-nx)*0.25+Math.exp(-((nx-0.3)**2)*20)*0.3, 0.15);
    p.setC(x,by,c); p.setC(x,by+1,shade(c,-0.1,0.2));
  }
  // Top rim
  for (let x=25;x<41;x++) if(inE(x,3,33,4,8,2)){p.setC(x,3,shade(C.wood_lt,0.1,0.5));p.setC(x,2,shade(C.frame_md,0.05,0.3))}

  // Sack (left, with template)
  const sackPb = renderSprite({
    grid:['...rr...','...CC...','..CCCC..','..CCCC..','.CCCCCC.','.CCCCCC.','CCCCCCCC','CCCCCCCC','CCCCCCCC','.CCCCCC.'],
    materials:{r:'cloth',C:'cloth'}
  },{r:C.cork,C:C.pad_dk},1);
  blitA(sackPb,p,2,20,{shadow:true,so:[1,2],sa:.15});

  // Outline whole scene
  const snap=new Uint8ClampedArray(p.data);
  for(let y=0;y<p.h;y++)for(let x=0;x<p.w;x++){if(!p.has(x,y))continue;let e=false;for(const[ex,ey]of[[-1,0],[1,0],[0,-1],[0,1]])if(!p.has(x+ex,y+ey)){e=true;break};if(e){const i=(y*p.w+x)<<2;const c=[snap[i],snap[i+1],snap[i+2]];const oc=adaptiveOutlineColor(c);p.data[i]=oc[0];p.data[i+1]=oc[1];p.data[i+2]=oc[2]}}
  return p;
}
render(mkBarrelV3(), 'barrel_v3', 5, '#c0c0b8');

// ================================================================
//  DEMO 4: Weapons
// ================================================================
const wpn = new PB(60, 42);
for(let y=0;y<42;y++)for(let x=0;x<60;x++)wpn.set(x,y,192,192,184,255);
blit(spriteWithColors('sword',{M:C.steel_md,G:C.gold_md,g:C.gem_red,W:C.wood_dk},2),wpn,2,2);
blit(spriteWithColors('staff',{g:C.gem_red,G:C.gold_md,W:C.wood_md},2),wpn,16,5);
blit(spriteWithColors('dagger',{M:C.steel_md,G:C.gold_md,W:C.wood_dk},2),wpn,30,14);
blit(spriteWithColors('bow',{W:C.wood_md,s:hx('#a09078')},2),wpn,40,8);
render(wpn,'weapons_v3',4,'#c0c0b8');

// ================================================================
//  DEMO 5: Potion Shelf
// ================================================================
function mkShelfV3() {
  const p = new PB(42, 44);
  // Back panel (very dark)
  for (let y=0;y<44;y++) for (let x=0;x<42;x++) {
    if (!inRR(x,y,0,0,42,44,1)) continue;
    p.setC(x,y,shade(C.frame_dk,-0.2,0.3));
  }
  // Shelves
  for (const sy of [14,28]) for (let x=2;x<40;x++) {
    p.setC(x,sy,shade(C.wood_md,0.08,0.5));
    p.setC(x,sy+1,shade(C.wood_dk,-0.05,0.4));
  }
  // Frame edges
  for (let y=0;y<44;y++){p.setC(0,y,shade(C.frame_md,(0.5-y/44)*0.15,0.4));p.setC(41,y,shade(C.frame_dk,-0.05,0.3));p.setC(1,y,shade(C.frame_md,(0.5-y/44)*0.1,0.4))}
  for (let x=0;x<42;x++){p.setC(x,0,shade(C.frame_md,0.08,0.4));p.setC(x,43,shade(C.frame_dk,-0.08,0.3))}
  // Potions on shelves
  const potionTypes=[
    {G:C.glass_md,L:C.pot_blue,c:C.cork,k:C.cork},
    {G:C.glass_md,L:C.pot_green,c:C.cork,k:C.cork},
    {G:C.glass_md,L:C.pot_purple,c:C.cork,k:C.cork},
    {G:C.glass_md,L:C.pot_red,c:C.cork,k:C.cork},
    {G:C.glass_md,L:C.pot_blue,c:C.cork,k:C.cork},
  ];
  for (let shelf=0;shelf<2;shelf++) {
    const baseY = shelf===0 ? 2 : 16;
    for (let i=0;i<5;i++) {
      const potion = spriteWithColors('potion', potionTypes[(i+shelf*2)%potionTypes.length], 1);
      blit(potion, p, 4+i*7, baseY);
    }
  }
  // Books on bottom shelf
  const bookColors = [C.cloth_r, C.food_b, C.pot_green, C.gold_dk];
  for (let i=0;i<4;i++) {
    const book = spriteWithColors('book',{S:bookColors[i],P:C.paper},1);
    blit(book,p,5+i*8,30);
  }
  // Outline
  const snap=new Uint8ClampedArray(p.data);
  for(let y=0;y<p.h;y++)for(let x=0;x<p.w;x++){if(!p.has(x,y))continue;let e=false;for(const[ex,ey]of[[-1,0],[1,0],[0,-1],[0,1]])if(!p.has(x+ex,y+ey)){e=true;break};if(e){const i=(y*p.w+x)<<2;const c=[snap[i],snap[i+1],snap[i+2]];const oc=adaptiveOutlineColor(c);p.data[i]=oc[0];p.data[i+1]=oc[1];p.data[i+2]=oc[2]}}
  return p;
}
render(mkShelfV3(),'shelf_v3',5,'#c0c0b8');

// ================================================================
//  DEMO 6: Bed
// ================================================================
function mkBedV3() {
  const p = new PB(52, 30);
  // Headboard
  for (let y=0;y<8;y++) for (let x=0;x<52;x++) {
    if (!inRR(x,y,0,0,52,8,2)) continue;
    const nx=x/52;
    p.setC(x,y,nz(shade(C.wood_dk,(0.5-nx)*0.2+(0.5-y/8)*0.1,0.5),x,y,4));
  }
  // Frame
  for (let y=6;y<30;y++) for (let x=0;x<52;x++) {
    const isFrame = x<3||x>=49||y>=27;
    if (!isFrame && y<8) continue;
    if (isFrame) p.setC(x,y,nz(shade(C.wood_dk,(0.5-x/52)*0.15,0.5),x,y,4));
  }
  // Blanket
  for (let y=8;y<27;y++) for (let x=3;x<49;x++) {
    const nx=(x-3)/46,ny=(y-8)/19;
    const fold = Math.sin(nx*6+ny*3)*0.1;
    p.setC(x,y,nz(shade(C.cloth_r,(0.5-nx)*0.15+fold,0.5),x,y,4));
  }
  // Pillows
  for (let i=0;i<3;i++) {const px=6+i*15;
    for(let y=6;y<14;y++)for(let x=px;x<px+12;x++){
      if(!inRR(x,y,px,6,px+12,14,2))continue;
      const nx2=(x-px)/12,ny2=(y-6)/8;
      const puff=1-Math.sqrt((nx2-0.5)**2+(ny2-0.5)**2)*1.5;
      p.setC(x,y,nz(shade(C.cloth_w,puff*0.2,0.3),x,y,3));
    }
  }
  // Outline
  const snap=new Uint8ClampedArray(p.data);
  for(let y=0;y<p.h;y++)for(let x=0;x<p.w;x++){if(!p.has(x,y))continue;let e=false;for(const[ex,ey]of[[-1,0],[1,0],[0,-1],[0,1]])if(!p.has(x+ex,y+ey)){e=true;break};if(e){const i=(y*p.w+x)<<2;const c=[snap[i],snap[i+1],snap[i+2]];const oc=adaptiveOutlineColor(c);p.data[i]=oc[0];p.data[i+1]=oc[1];p.data[i+2]=oc[2]}}
  return p;
}
render(mkBedV3(),'bed_v3',5,'#c0c0b8');

// ================================================================
//  DEMO 7: Round Table Set
// ================================================================
function mkRoundTableV3(items) {
  const p = new PB(38, 38);
  // Chairs
  for (const [cx,cy] of [[16,0],[16,30],[0,15],[30,15]]) {
    for(let y=cy;y<cy+8;y++)for(let x=cx;x<cx+8;x++){
      if(!inRR(x,y,cx,cy,cx+8,cy+8,2))continue;
      const nx2=(x-cx)/7,ny2=(y-cy)/7;
      p.setC(x,y,nz(shade(C.wood_dk,(0.5-nx2)*0.15+(0.5-ny2)*0.1,0.5),x,y,4));
    }
  }
  // Table circle with cloth
  for(let y=6;y<32;y++)for(let x=6;x<32;x++){
    if(!inE(x,y,19,19,13,13))continue;
    const nx2=(x-6)/26,ny2=(y-6)/26;
    const fold=Math.sin(nx2*8+ny2*6)*0.06;
    p.setC(x,y,nz(shade(C.cloth_w,(0.5-nx2)*0.12+(0.5-ny2)*0.08+fold,0.3),x,y,3));
  }
  // Items on table
  if (items) {
    for (const item of items) {
      const sprite = spriteWithColors(item.type, item.colors, 1);
      blit(sprite, p, item.x, item.y);
    }
  }
  // Outline
  const snap=new Uint8ClampedArray(p.data);
  for(let y=0;y<p.h;y++)for(let x=0;x<p.w;x++){if(!p.has(x,y))continue;let e=false;for(const[ex,ey]of[[-1,0],[1,0],[0,-1],[0,1]])if(!p.has(x+ex,y+ey)){e=true;break};if(e){const i=(y*p.w+x)<<2;const c=[snap[i],snap[i+1],snap[i+2]];const oc=adaptiveOutlineColor(c);p.data[i]=oc[0];p.data[i+1]=oc[1];p.data[i+2]=oc[2]}}
  return p;
}

const tableScene = new PB(82,42);
for(let y=0;y<42;y++)for(let x=0;x<82;x++)tableScene.set(x,y,192,192,184,255);
// Table with candle
blit(mkRoundTableV3([{type:'candle',colors:{f:C.fire,W:C.cloth_w,M:C.iron_md},x:16,y:14}]),tableScene,0,2);
// Table with food
blit(mkRoundTableV3([
  {type:'bowl',colors:{F:C.food_y,C:C.ceramic},x:14,y:14},
  {type:'bowl',colors:{F:C.food_r,C:C.ceramic},x:21,y:14},
]),tableScene,42,2);
render(tableScene,'table_v3',4,'#c0c0b8');

})();
</script>
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</html>