function createGame({ sdk }) { var W = sdk.W, H = sdk.H; var kx, ky, hp, t, slimes, spawnTimer, wave, waveTimer, bladeAngle, hitFlash, killStreak, streakTimer; var moving, moveMeter, dodgeCool; sdk.music({ mood: "intense" }); sdk.tweaks({ moveSpeed: { value: 220, min: 120, max: 340, step: 10, label: "Speed", desc: "Knight move speed" }, bladeRange: { value: 62, min: 40, max: 100, step: 4, label: "Blade", desc: "Attack reach" }, swingSpeed: { value: 7, min: 3, max: 12, step: 0.5, label: "Swing", desc: "Blade swing speed" } }); function spawnSlime() { var edge = Math.floor(Math.random() * 4), x, yy; if (edge === 0) { x = Math.random() * W; yy = -20; } else if (edge === 1) { x = W + 20; yy = Math.random() * H; } else if (edge === 2) { x = Math.random() * W; yy = H + 20; } else { x = -20; yy = Math.random() * H; } var big = Math.random() < 0.18 + wave * 0.01; slimes.push({ x: x, y: yy, r: big ? 18 : 11, hp: big ? 3 : 1, spd: 40 + wave * 6 + Math.random() * 20, wob: Math.random() * 6.28, cool: 0, dodged: false }); } sdk.run({ reset: function () { kx = W / 2; ky = H / 2; hp = 3; t = 0; slimes = []; spawnTimer = 0; wave = 1; waveTimer = 0; bladeAngle = 0; hitFlash = 0; killStreak = 0; streakTimer = 0; moving = false; moveMeter = 0; dodgeCool = 0; }, update: function (dt, input) { t += dt; waveTimer += dt; bladeAngle += sdk.tweak("swingSpeed") * dt; if (hitFlash > 0) hitFlash -= dt; if (dodgeCool > 0) dodgeCool -= dt; if (streakTimer > 0) { streakTimer -= dt; if (streakTimer <= 0) killStreak = 0; } // steer — track whether the player is ACTIVELY moving this frame var spd = sdk.tweak("moveSpeed"); var pkx = kx, pky = ky; if (input.pointerX != null) { var dx = input.pointerX - kx, dy = input.pointerY - ky; var d = Math.hypot(dx, dy); if (d > 4) { kx += (dx / d) * spd * dt; ky += (dy / d) * spd * dt; } } else { if (input.left) kx -= spd * dt; if (input.right) kx += spd * dt; } kx = sdk.clamp(kx, 12, W - 12); ky = sdk.clamp(ky, 12, H - 12); var movedDist = Math.hypot(kx - pkx, ky - pky); // moveMeter decays; player intent keeps it alive → gates all scoring moveMeter = Math.max(0, moveMeter - dt); if (movedDist > spd * dt * 0.35) moveMeter = 0.6; moving = moveMeter > 0; // wave ramp (3s grace at start) var grace = t < 3; var spawnRate = grace ? 1.6 : Math.max(0.28, 1.1 - wave * 0.06); spawnTimer += dt; var maxSlimes = grace ? 3 : 6 + wave * 2; if (spawnTimer >= spawnRate && slimes.length < maxSlimes) { spawnTimer = 0; spawnSlime(); } if (waveTimer > 8 && !grace) { wave++; waveTimer = 0; sdk.juice.popup("WAVE " + wave + "!", W / 2, H * 0.35, "#ffe066"); sdk.juice.flash(0.35); sdk.tone("win"); sdk.haptic(20); sdk.juice.burst(kx, ky, "#ffe066", 24, 200); } // blade tip position var range = sdk.tweak("bladeRange"); var btx = kx + Math.cos(bladeAngle) * range; var bty = ky + Math.sin(bladeAngle) * range; // update slimes for (var i = slimes.length - 1; i >= 0; i--) { var s = slimes[i]; s.wob += dt * 4; var mdx = kx - s.x, mdy = ky - s.y, md = Math.hypot(mdx, mdy) || 1; s.x += (mdx / md) * s.spd * dt + Math.cos(s.wob) * 8 * dt; s.y += (mdy / md) * s.spd * dt + Math.sin(s.wob) * 8 * dt; if (s.cool > 0) s.cool -= dt; // DODGE reward — a near-miss while actively moving = skill, scores var kdNow = Math.hypot(kx - s.x, ky - s.y); if (!s.dodged && moving && dodgeCool <= 0 && kdNow < s.r + 26 && kdNow > s.r + 12) { s.dodged = true; dodgeCool = 0.25; sdk.addScore(1); sdk.juice.popup("DODGE", s.x, s.y - 14, "#8ecbff"); sdk.juice.burst(s.x, s.y, "#8ecbff", 6, 100); sdk.tone("jump"); } // blade hit — only counts as a KILL when the player is actively steering var bd = Math.hypot(btx - s.x, bty - s.y); if (bd < s.r + 12 && s.cool <= 0) { if (moving) { s.hp--; s.cool = 0.25; sdk.juice.burst(s.x, s.y, "#8affc0", 6, 120); if (s.hp <= 0) { slimes.splice(i, 1); killStreak++; streakTimer = 1.5; var pts = 1 + Math.floor(killStreak / 5); sdk.addScore(pts); sdk.juice.burst(s.x, s.y, "#5fff9f", 12, 160); sdk.tone("hit"); if (killStreak > 1 && killStreak % 5 === 0) { sdk.juice.popup(killStreak + "x!", s.x, s.y - 14, "#ffe066"); } else { sdk.juice.popup("+" + pts, s.x, s.y - 12, "#9cffc4"); } continue; } } else { // idle contact just nudges the slime, no points, no progress s.cool = 0.25; } } // slime touches knight var kd = Math.hypot(kx - s.x, ky - s.y); if (kd < s.r + 10) { slimes.splice(i, 1); hp--; hitFlash = 0.4; sdk.juice.burst(kx, ky, "#ff4d4d", 18, 180); sdk.juice.shake(9); sdk.juice.flash(0.4); sdk.tone("hit"); sdk.haptic(35); if (hp <= 0) { sdk.juice.burst(kx, ky, "#ff4d4d", 30, 260); sdk.juice.shake(14); return sdk.gameOver(); } } } }, draw: function (c) { c.fillStyle = "#0a0f1e"; c.fillRect(0, 0, W, H); // arena grid glow c.strokeStyle = "rgba(60,90,140,0.15)"; c.lineWidth = 1; for (var gx = 0; gx <= W; gx += 40) { c.beginPath(); c.moveTo(gx, 0); c.lineTo(gx, H); c.stroke(); } for (var gy = 0; gy <= H; gy += 40) { c.beginPath(); c.moveTo(0, gy); c.lineTo(W, gy); c.stroke(); } // slimes for (var i = 0; i < slimes.length; i++) { var s = slimes[i]; var sq = 1 + Math.sin(s.wob) * 0.12; c.save(); c.shadowColor = "#3fe08f"; c.shadowBlur = 12; c.fillStyle = s.r > 15 ? "#4fd07f" : "#7fffb0"; c.beginPath(); c.ellipse(s.x, s.y, s.r, s.r / sq, 0, 0, 6.2832); c.fill(); c.restore(); // eyes c.fillStyle = "#0a0f1e"; sdk.circle(c, s.x - s.r * 0.35, s.y - s.r * 0.1, 2); sdk.circle(c, s.x + s.r * 0.35, s.y - s.r * 0.1, 2); } // blade arc — dims when idle so the "no-score" state reads clearly var range = sdk.tweak("bladeRange"); var bright = moving ? 1 : 0.4; c.save(); c.strokeStyle = "rgba(180,220,255," + (0.35 * bright) + ")"; c.lineWidth = 3; c.shadowColor = "#bfe0ff"; c.shadowBlur = 14 * bright; c.beginPath(); c.arc(kx, ky, range, bladeAngle - 0.9, bladeAngle + 0.2); c.stroke(); // blade tip var btx = kx + Math.cos(bladeAngle) * range; var bty = ky + Math.sin(bladeAngle) * range; c.fillStyle = moving ? "#e8f4ff" : "#6a7a90"; c.beginPath(); c.moveTo(btx, bty); c.lineTo(kx + Math.cos(bladeAngle - 0.15) * (range - 14), ky + Math.sin(bladeAngle - 0.15) * (range - 14)); c.lineTo(kx + Math.cos(bladeAngle + 0.05) * (range - 14), ky + Math.sin(bladeAngle + 0.05) * (range - 14)); c.closePath(); c.fill(); c.restore(); // knight c.save(); c.shadowColor = hitFlash > 0 ? "#ff5555" : "#6cc4ff"; c.shadowBlur = 18; c.fillStyle = hitFlash > 0 ? "#ffb0b0" : "#cfe6ff"; sdk.circle(c, kx, ky, 10); c.restore(); c.font = "14px sans-serif"; c.textAlign = "center"; c.textBaseline = "middle"; c.fillText("⚔️", kx, ky); // HP hearts c.font = "18px sans-serif"; c.textAlign = "left"; for (var h = 0; h < hp; h++) c.fillText("❤️", 8 + h * 22, 20); } }); }

Blade Knight

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