From 837fd81a2bd857011855ca1dc32e646629f14236 Mon Sep 17 00:00:00 2001 From: "Somhairle H. Marisol" Date: Tue, 29 Sep 2026 11:08:32 +0800 Subject: p74: 启动开场过渡（水墨式渐显）+ 开始界面布局回归 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 新增纯函数 InkReveal.fs（inkStrength ease-out 消散 + 6 滴预乘墨滴 dabs），DrawSplash 在场景层之上、标题之下绘制，与既有 reveal/veil 淡入叠加，形成可辨识水墨开场；单滴 alpha<255 且椭圆行落成，无实心黑块。开始界面沿用既有 开始/读档/退出（有档 继续）。新增 P74LaunchTransitionTests（4 例）与 LV_P74_SHOT/-analyze-p74 证据（5 帧墨幕非增、两两 diff>0，verdict=PASS）。HUD 结构未动；Desktop 350/350、Kernel 120/120、digest 与 p70 一致。 --- docs/evidence/p74-analysis.txt | 26 ++++ docs/evidence/p74-splash-008.png | Bin 0 -> 58446 bytes docs/evidence/p74-splash-030.png | Bin 0 -> 62277 bytes docs/evidence/p74-splash-060.png | Bin 0 -> 61750 bytes docs/evidence/p74-splash-100.png | Bin 0 -> 55210 bytes docs/evidence/p74-splash-140.png | Bin 0 -> 55286 bytes ...273\264\346\212\244\350\257\264\346\230\216.md" | 12 ++ scripts/analyze-p74.py | 132 +++++++++++++++++++++ .../LivingVillage.Desktop.Tests.fsproj | 1 + .../P74LaunchTransitionTests.fs | 59 +++++++++ src/LivingVillage.Desktop/Game.fs | 29 +++++ src/LivingVillage.Desktop/InkReveal.fs | 58 +++++++++ .../LivingVillage.Desktop.fsproj | 1 + 13 files changed, 318 insertions(+) create mode 100644 docs/evidence/p74-analysis.txt create mode 100644 docs/evidence/p74-splash-008.png create mode 100644 docs/evidence/p74-splash-030.png create mode 100644 docs/evidence/p74-splash-060.png create mode 100644 docs/evidence/p74-splash-100.png create mode 100644 docs/evidence/p74-splash-140.png create mode 100644 scripts/analyze-p74.py create mode 100644 src/LivingVillage.Desktop.Tests/P74LaunchTransitionTests.fs create mode 100644 src/LivingVillage.Desktop/InkReveal.fs diff --git a/docs/evidence/p74-analysis.txt b/docs/evidence/p74-analysis.txt new file mode 100644 index 0000000..907a063 --- /dev/null +++ b/docs/evidence/p74-analysis.txt @@ -0,0 +1,26 @@ +P74（启动开场过渡：水墨式渐显）证据分析 — 真实 Desktop xvfb 1280x720 +钩子：LV_P74_SHOT=1（60Hz 固定步进，splash 帧表 8/30/60/100/140 各一帧） +路径：splashFrame → InkReveal.inkStrength/dabs（预乘墨滴）→ 露出天色/水面/屋脊/标题 + +log shots: 8(ink=0.770), 30(ink=0.325), 60(ink=0.053), 100(ink=0.000), 140(ink=0.000) + +p74-splash-008.png: size=1280x720 brightness=46.5 std=25.6 dark_block=0 white_block=405 +p74-splash-030.png: size=1280x720 brightness=51.7 std=38.4 dark_block=0 white_block=232 +p74-splash-060.png: size=1280x720 brightness=56.0 std=48.9 dark_block=0 white_block=232 +p74-splash-100.png: size=1280x720 brightness=56.4 std=49.0 dark_block=0 white_block=232 +p74-splash-140.png: size=1280x720 brightness=56.4 std=49.1 dark_block=0 white_block=232 + +diff frame 008 vs 030: differing_pixels=670116 +diff frame 008 vs 060: differing_pixels=686287 +diff frame 008 vs 100: differing_pixels=528158 +diff frame 008 vs 140: differing_pixels=537994 +diff frame 030 vs 060: differing_pixels=733221 +diff frame 030 vs 100: differing_pixels=692402 +diff frame 030 vs 140: differing_pixels=702640 +diff frame 060 vs 100: differing_pixels=525583 +diff frame 060 vs 140: differing_pixels=545037 +diff frame 100 vs 140: differing_pixels=120790 + +verdict=PASS + ink strength decays to 0 across the captured frames; frames render 1280x720, + no big black/white blocks, and every pair differs (the opening transition animates). diff --git a/docs/evidence/p74-splash-008.png b/docs/evidence/p74-splash-008.png new file mode 100644 index 0000000..d0c1a01 Binary files /dev/null and b/docs/evidence/p74-splash-008.png differ diff --git a/docs/evidence/p74-splash-030.png b/docs/evidence/p74-splash-030.png new file mode 100644 index 0000000..e42ba63 Binary files /dev/null and b/docs/evidence/p74-splash-030.png differ diff --git a/docs/evidence/p74-splash-060.png b/docs/evidence/p74-splash-060.png new file mode 100644 index 0000000..401c0d4 Binary files /dev/null and b/docs/evidence/p74-splash-060.png differ diff --git a/docs/evidence/p74-splash-100.png b/docs/evidence/p74-splash-100.png new file mode 100644 index 0000000..bce9efa Binary files /dev/null and b/docs/evidence/p74-splash-100.png differ diff --git a/docs/evidence/p74-splash-140.png b/docs/evidence/p74-splash-140.png new file mode 100644 index 0000000..71cef5a Binary files /dev/null and b/docs/evidence/p74-splash-140.png differ diff --git "a/docs/\347\273\264\346\212\244\350\257\264\346\230\216.md" "b/docs/\347\273\264\346\212\244\350\257\264\346\230\216.md" index 9d27dd1..3064e1a 100644 --- "a/docs/\347\273\264\346\212\244\350\257\264\346\230\216.md" +++ "b/docs/\347\273\264\346\212\244\350\257\264\346\230\216.md" @@ -209,6 +209,18 @@ dotnet src/LivingVillage.Headless/bin/Release/net8.0/LivingVillage.Headless.dll - 门槛：clean rebuild 0 警告 0 错误；`final_digest=953775FAEB2FDDE97289491AA260BD8D390C571E48A7A13AD2CB6FB7124F7F6C` 一致、`performance_determinism=PASS`。 +## P74 启动开场过渡（水墨式渐显） + +- 新增纯函数模块 `InkReveal.fs`：`inkStrength`（起手 1，`dissolveFrames=96` 内 ease-out 退到 0）、 + `dabs frame width height`（6 滴归一化种子墨滴，随消散半径外扩、alpha 下降）、`inkRgb=(26,36,52)`。 + 单滴 `alpha < 255` 且用 `VillageArt.ellipseRuns` + `premultiply` 落成柔光墨晕，**绝无实心黑块**。 +- 接线：`Game.DrawSplash` 在场景层（天色/云/屋脊/水面/灯笼）之上、标题之下绘制墨滴，与既有 + `LaunchScreen.revealProgress/veilAlpha` 淡入/暗幕退场叠加，形成可辨识的水墨开场；HUD 结构未动。 +- **回归**：`P74LaunchTransitionTests`（墨幕单调消散且为 0、墨滴确定/随帧变化、alpha<255、 + 半径 < 半屏、`LaunchScreen` 不变量、开始界面三项 开始/读档/退出 + 有档 继续/读档/退出）。 +- **证据**：`LV_P74_SHOT=1`（60Hz 固定步进，splash 帧表 8/30/60/100/140 各一帧）→ + `scripts/analyze-p74.py` 断言帧号/墨幕非增/无大黑块/两两 pixel diff>0，落 `docs/evidence/p74-*`。 + ## P17 批验：场景细节 / 人物动效 / 昼夜光照精修 - ①街边中式细节物：`scripts/make-jiangnan-art.py` 世界图集由 25 格扩到 28 格（新增 slot 25 石灯笼 / diff --git a/scripts/analyze-p74.py b/scripts/analyze-p74.py new file mode 100644 index 0000000..4569791 --- /dev/null +++ b/scripts/analyze-p74.py @@ -0,0 +1,132 @@ +#!/usr/bin/env python3 +"""P74（启动开场过渡：水墨式渐显）证据分析：真实 xvfb 录启动 0-3 秒序列抽帧。 + +判据（读真实实跑日志 + 逐帧像素统计）： + 1. 日志含 5 行 `p74-shot=p74-splash- inkStrength=`，帧号递增 {8,30,60,100,140}。 + 2. inkStrength 随帧非增，且在 dissolveFrames(96) 后为 0（墨幕确实在消散）。 + 3. 抽帧 PNG：1280x720、非空白（std>=6）、无 24x24 纯黑块（标题/屋脊的纯白属预期，仅报告不判失败）。 + 4. 动画在变：任意两帧 pixel diff > 0（且首末帧 diff 显著）。 + 5. 画面「是否好看/水墨味」的 vision 复核由 Hermes 侧完成，非本脚本判据。 + +Usage: python3 scripts/analyze-p74.py +Exit 0 pass / 1 fail / 2 usage. +""" + +import itertools +import re +import sys +from pathlib import Path + +import numpy as np +from PIL import Image + +SHOT_RE = re.compile(r"^p74-shot=p74-splash-(\d+) inkStrength=([\d.]+)$", re.MULTILINE) +EXPECTED = [8, 30, 60, 100, 140] +DARK_SIDE = 24 +DARK_MAX = 8 +WHITE_SIDE = 64 +WHITE_MIN = 250 + + +def max_block(rgba, side, predicate): + h, w = rgba.shape[0], rgba.shape[1] + if h < side or w < side: + return 0 + mask = predicate(rgba).astype(np.int64) + integral = np.zeros((h + 1, w + 1), dtype=np.int64) + integral[1:, 1:] = mask.cumsum(axis=0).cumsum(axis=1) + best = 0 + for y in range(0, h - side + 1): + for x in range(0, w - side + 1): + total = ( + integral[y + side, x + side] + - integral[y, x + side] + - integral[y + side, x] + + integral[y, x] + ) + best = max(best, int(total)) + return best + + +def main(): + if len(sys.argv) != 3: + print(__doc__) + return 2 + rec = Path(sys.argv[1]) + out = Path(sys.argv[2]) + log = (rec / "log.txt").read_text(encoding="utf-8", errors="replace") + failures = [] + lines = [ + "P74（启动开场过渡：水墨式渐显）证据分析 — 真实 Desktop xvfb 1280x720", + "钩子：LV_P74_SHOT=1（60Hz 固定步进，splash 帧表 8/30/60/100/140 各一帧）", + "路径：splashFrame → InkReveal.inkStrength/dabs（预乘墨滴）→ 露出天色/水面/屋脊/标题", + "", + ] + + shots = [(int(m.group(1)), float(m.group(2))) for m in SHOT_RE.finditer(log)] + got = [f for f, _ in shots] + lines.append("log shots: " + ", ".join(f"{f}(ink={v:.3f})" for f, v in shots)) + if got != EXPECTED: + failures.append(f"log frames {got} != expected {EXPECTED}") + strengths = [v for _, v in shots] + if strengths != sorted(strengths, reverse=True): + failures.append("inkStrength is not non-increasing across frames") + if not all(v == 0.0 for f, v in shots if f >= 96): + failures.append("inkStrength is not 0 after dissolveFrames (96)") + lines.append("") + + stats = {} + for frame in EXPECTED: + path = rec / f"p74-splash-{frame:03d}.png" + if not path.exists(): + failures.append(f"missing frame {path.name}") + continue + rgba = np.asarray(Image.open(path).convert("RGBA"), dtype=np.uint8) + rgb = rgba[:, :, :3].astype(np.float64) + h, w = rgb.shape[0], rgb.shape[1] + brightness = float(rgb.mean()) + std = float(rgb.std()) + dark = max_block( + rgba, DARK_SIDE, + lambda a: (a[:, :, 0] <= DARK_MAX) & (a[:, :, 1] <= DARK_MAX) & (a[:, :, 2] <= DARK_MAX) & (a[:, :, 3] >= 250), + ) + white = max_block( + rgba, WHITE_SIDE, + lambda a: (a[:, :, 0] >= WHITE_MIN) & (a[:, :, 1] >= WHITE_MIN) & (a[:, :, 2] >= WHITE_MIN) & (a[:, :, 3] >= 250), + ) + stats[frame] = {"brightness": brightness, "std": std} + lines.append(f"p74-splash-{frame:03d}.png: size={w}x{h} brightness={brightness:.1f} std={std:.1f} dark_block={dark} white_block={white}") + if (w, h) != (1280, 720): + failures.append(f"{path.name} size {w}x{h} != 1280x720") + if std < 6.0: + failures.append(f"{path.name} looks blank (std={std:.1f})") + if dark > 0: + failures.append(f"{path.name} has {DARK_SIDE}x{DARK_SIDE} pure-black block") + lines.append("") + + have = [f for f in EXPECTED if f in stats] + for a, b in itertools.combinations(have, 2): + ia = np.asarray(Image.open(rec / f"p74-splash-{a:03d}.png").convert("RGB"), dtype=np.int16) + ib = np.asarray(Image.open(rec / f"p74-splash-{b:03d}.png").convert("RGB"), dtype=np.int16) + differing = int((np.abs(ia - ib).sum(axis=2) > 0).sum()) + lines.append(f"diff frame {a:03d} vs {b:03d}: differing_pixels={differing}") + if differing == 0: + failures.append(f"frame {a} identical to {b}") + + lines.append("") + if failures: + lines.append("verdict=FAIL") + for f in failures: + lines.append(" - " + f) + else: + lines.append("verdict=PASS") + lines.append(" ink strength decays to 0 across the captured frames; frames render 1280x720,") + lines.append(" no big black blocks, and every pair differs (the opening transition animates).") + out.parent.mkdir(parents=True, exist_ok=True) + out.write_text("\n".join(lines) + "\n", encoding="utf-8") + print(f"wrote {out} verdict={'FAIL' if failures else 'PASS'}") + return 1 if failures else 0 + + +if __name__ == "__main__": + sys.exit(main()) diff --git a/src/LivingVillage.Desktop.Tests/LivingVillage.Desktop.Tests.fsproj b/src/LivingVillage.Desktop.Tests/LivingVillage.Desktop.Tests.fsproj index 11a1b90..fb7ecb7 100644 --- a/src/LivingVillage.Desktop.Tests/LivingVillage.Desktop.Tests.fsproj +++ b/src/LivingVillage.Desktop.Tests/LivingVillage.Desktop.Tests.fsproj @@ -45,6 +45,7 @@ + diff --git a/src/LivingVillage.Desktop.Tests/P74LaunchTransitionTests.fs b/src/LivingVillage.Desktop.Tests/P74LaunchTransitionTests.fs new file mode 100644 index 0000000..880f33b --- /dev/null +++ b/src/LivingVillage.Desktop.Tests/P74LaunchTransitionTests.fs @@ -0,0 +1,59 @@ +namespace LivingVillage.Desktop.Tests + +open Microsoft.VisualStudio.TestTools.UnitTesting +open LivingVillage.Desktop +open LivingVillage.Kernel +open LivingVillage.Kernel.Sim + +/// P74 回归：启动开场过渡（水墨渐显）纯函数性质 + 开始界面布局入口。 +[] +type P74LaunchTransitionTests () = + + let width = 1280 + let height = 720 + + [] + member _.InkRevealDissolvesMonotonicallyAndStaysSoft () = + // 起手满墨、96 帧后散尽，且整体强度随帧非增（确定性 ease-out）。 + Assert.AreEqual(1.0f, InkReveal.inkStrength 0L) + Assert.AreEqual(0.0f, InkReveal.inkStrength InkReveal.dissolveFrames) + Assert.AreEqual(0.0f, InkReveal.inkStrength 140L) + let strengths = [ 0L; 8L; 30L; 60L; 95L ] |> List.map InkReveal.inkStrength + Assert.AreEqual(strengths, strengths |> List.sortDescending) + // 墨滴始终存在、均在画布内、alpha < 255（柔和墨晕，非实心黑块）、半径不覆盖半屏。 + for frame in [ 0L; 8L; 30L; 60L; 95L ] do + let dabs = InkReveal.dabs frame width height + Assert.IsTrue(dabs.Length > 0, "墨滴集合不得为空") + for dab in dabs do + Assert.IsTrue(dab.Alpha >= 0 && dab.Alpha < 255, sprintf "alpha %d 越界" dab.Alpha) + Assert.IsTrue(dab.Rx > 0 && dab.Rx < width / 2, "Rx 覆盖过半屏") + Assert.IsTrue(dab.Ry > 0 && dab.Ry < height / 2, "Ry 覆盖过半屏") + + [] + member _.InkRevealDabsChangeOverTheTransition () = + // 同一帧两次调用一致（确定性）；不同帧墨滴布局不同（动画在变）。 + Assert.AreEqual(InkReveal.dabs 20L width height, InkReveal.dabs 20L width height) + Assert.AreNotEqual(InkReveal.dabs 8L width height, InkReveal.dabs 60L width height) + + [] + member _.LaunchScreenTransitionIsDeterministic () = + Assert.AreEqual(0.0f, LaunchScreen.revealProgress 0L) + Assert.AreEqual(1.0f, LaunchScreen.revealProgress LaunchScreen.fadeInFrames) + Assert.AreEqual(1.0f, LaunchScreen.veilAlpha 0L) + Assert.AreEqual(0.0f, LaunchScreen.veilAlpha LaunchScreen.durationFrames) + Assert.IsTrue(LaunchScreen.isComplete LaunchScreen.durationFrames) + Assert.IsFalse(LaunchScreen.isComplete (LaunchScreen.durationFrames - 1L)) + Assert.AreEqual("江南水乡", LaunchScreen.title) + + [] + member _.StartMenuLayoutExposesStartLoadExit () = + // 开场结束后的可交互开始界面：无存档 → 开始/读档/退出。 + let fresh = MenuState.create { Paused = false; Speed = OneX } false + Assert.AreEqual(MainMenu, fresh.Page) + Assert.AreEqual([ NewGameItem; LoadItem; ExitItem ], MenuState.items fresh) + let labels = MenuState.items fresh |> List.map MenuState.itemLabel + Assert.AreEqual([ "开始"; "读档"; "退出" ], labels) + // 有进行中的世界 → 继续/读档/退出。 + let resumed = MenuState.create { Paused = false; Speed = OneX } true + Assert.AreEqual([ ContinueItem; LoadItem; ExitItem ], MenuState.items resumed) + Assert.AreEqual("继续", MenuState.itemLabel (MenuState.selectedItem resumed)) diff --git a/src/LivingVillage.Desktop/Game.fs b/src/LivingVillage.Desktop/Game.fs index 3d04ca7..a4f994b 100644 --- a/src/LivingVillage.Desktop/Game.fs +++ b/src/LivingVillage.Desktop/Game.fs @@ -319,6 +319,10 @@ type LivingVillageGame() as this = let p42ShotMode = Environment.GetEnvironmentVariable("LV_P42_SHOT") = "1" let mutable p42SplashEarlyDone = false let mutable p42SplashLateDone = false + // P74 证据钩子：LV_P74_SHOT=1 时在 60Hz 固定步进下按 splash 帧表拍开场过渡序列，拍完退出。 + let p74ShotMode = Environment.GetEnvironmentVariable("LV_P74_SHOT") = "1" + let p74Frames = [ 8L; 30L; 60L; 100L; 140L ] + let mutable p74Saved = Set.empty // P43 证据钩子：LV_P43_SHOT=1 时在真实世界里拍昼/夜两张 HUD 整帧（日历钟卡 + 体力条 + 10 格 hotbar）。 let p43ShotMode = Environment.GetEnvironmentVariable("LV_P43_SHOT") = "1" let mutable p43Step = 0 @@ -2617,6 +2621,20 @@ type LivingVillageGame() as this = printfn "p42-shot=done" this.Exit() + /// P74 证据：splash 帧表逐帧落盘（证明开场过渡在变），拍完即退出。 + member private this.CaptureP74Shot () = + if splashActive then + match p74Frames |> List.tryFind (fun f -> not (Set.contains f p74Saved) && splashFrame >= f) with + | Some frame -> + p74Saved <- Set.add frame p74Saved + System.IO.Directory.CreateDirectory recordDirectory |> ignore + this.SaveBackBuffer(sprintf "%s/p74-splash-%03d.png" recordDirectory frame) + printfn "p74-shot=p74-splash-%03d inkStrength=%.3f" frame (InkReveal.inkStrength splashFrame) + | None -> () + if p74Saved.Count >= p74Frames.Length then + printfn "p74-shot=done" + this.Exit() + /// P20 证据：把一次 MapGen 绘制渲染到指定尺寸离屏 target，返回绘制瓦片数与纹理。 /// P28：可传入世界 tint 与可选 veil tick（夜景取证用）。 member private this.RenderMapGen (targetWidth: int) (targetHeight: int) (camX: int) (camY: int) (drawFitted: bool) (tint: Color) (veilTick: int64 option) : int * Texture2D = @@ -2867,6 +2885,8 @@ type LivingVillageGame() as this = this.CaptureMenuShot() if p42ShotMode then this.CaptureP42Shot() + if p74ShotMode then + this.CaptureP74Shot() if storyShotMode && storyShotPrepared then storyShotFrame <- storyShotFrame + 1L if not storyShotSaved && storyShotFrame = 20L then @@ -2990,6 +3010,15 @@ type LivingVillageGame() as this = spriteBatch.Draw(pixel, Rectangle(lx - 1, ly - 7, 4, 2), Color(90, 60, 40)) spriteBatch.Draw(pixel, Rectangle(lx - 2, ly + 5, 6, 2), Color(90, 60, 40)) + // P74 水墨式渐显：柔和墨滴从画布各处晕开、随帧消散，露出后方天色/水面/屋脊。 + // 单滴 alpha < 255 且用预乘椭圆行落成，绝无实心黑块；绘在标题之下、场景之上。 + let inkR, inkG, inkB = InkReveal.inkRgb + for dab in InkReveal.dabs splashFrame width height do + if dab.Alpha > 0 then + let inkColor = VillageArt.premultiply inkR inkG inkB dab.Alpha + for (runX, runY, runW) in VillageArt.ellipseRuns dab.X dab.Y dab.Rx dab.Ry do + spriteBatch.Draw(pixel, Rectangle(runX, runY, runW, 1), inkColor) + // 标题：淡入 + 上浮，先画深色投影再画亮面。 let titleRise = int (24.0f * (1.0f - reveal)) PixelText.draw spriteBatch pixel cjkAtlas (layout.TitleX + 4) (layout.TitleY + titleRise + 4) layout.TitleScale (Color(12, 20, 28, alpha 255)) LaunchScreen.title diff --git a/src/LivingVillage.Desktop/InkReveal.fs b/src/LivingVillage.Desktop/InkReveal.fs new file mode 100644 index 0000000..04c1675 --- /dev/null +++ b/src/LivingVillage.Desktop/InkReveal.fs @@ -0,0 +1,58 @@ +namespace LivingVillage.Desktop + +open System + +/// P74 启动开场过渡：纯程序实现的水墨式渐显。 +/// 启动最初数帧用若干柔和墨滴（预乘 alpha 椭圆行，绝无整屏纯色/大黑块）从中心向外 +/// 晕开，同时整体墨幕强度随帧 ease-out 消退，露出后方的天色/水面/屋脊/标题。 +/// 全部为帧计数与画布尺寸的纯函数，确定性可复现；Kernel 不参与。 +module InkReveal = + + /// 墨幕完全消散所需帧数（< LaunchScreen.durationFrames，先散墨再见标题）。 + let dissolveFrames = 96L + + /// 单滴墨的最大 alpha：始终 < 255，保证是柔光墨晕而非实心黑块。 + let maxAlpha = 200 + + /// 墨滴种子：归一化中心 + 归一化基准半径 + 相位（纯数据，确定性布局）。 + let private seeds : (float32 * float32 * float32 * float32 * int) list = + [ (0.22f, 0.30f, 0.14f, 0.10f, 0) + (0.46f, 0.22f, 0.18f, 0.12f, 1) + (0.74f, 0.34f, 0.12f, 0.10f, 2) + (0.58f, 0.62f, 0.20f, 0.13f, 3) + (0.30f, 0.70f, 0.16f, 0.11f, 4) + (0.83f, 0.67f, 0.11f, 0.08f, 5) ] + + let private clamp01 (v: float32) = if v < 0.0f then 0.0f elif v > 1.0f then 1.0f else v + + /// 整体墨幕强度：起手 1，随帧 ease-out 退到 0（dissolveFrames 后为 0）。 + let inkStrength (frame: int64) : float32 = + if frame <= 0L then 1.0f + elif frame >= dissolveFrames then 0.0f + else + let t = clamp01 (float32 frame / float32 dissolveFrames) + 1.0f - t |> fun remaining -> remaining * remaining * remaining + + /// 一滴墨：像素中心/半径/alpha。alpha 已含墨幕强度，绘制方按 alpha 预乘 rgb。 + type Dab = + { X: int + Y: int + Rx: int + Ry: int + Alpha: int } + + /// 当前帧的墨滴集合：消散过程中半径外扩、alpha 下降，读起来像墨在水中晕开。 + let dabs (frame: int64) (width: int) (height: int) : Dab list = + let strength = inkStrength frame + let expand = 1.0f + 0.9f * (1.0f - strength) + seeds + |> List.map (fun (cx, cy, brx, bry, phase) -> + let wobble = 1.0f + 0.06f * float32 (sin (float (phase) * 1.7)) + { X = int (cx * float32 width) + Y = int (cy * float32 height) + Rx = max 1 (int (brx * float32 width * expand * wobble)) + Ry = max 1 (int (bry * float32 height * expand * wobble)) + Alpha = int (float32 maxAlpha * strength) }) + + /// 墨色（深靛而非纯黑），绘制时与 alpha 预乘。 + let inkRgb : int * int * int = (26, 36, 52) diff --git a/src/LivingVillage.Desktop/LivingVillage.Desktop.fsproj b/src/LivingVillage.Desktop/LivingVillage.Desktop.fsproj index 7243705..8abbdd6 100644 --- a/src/LivingVillage.Desktop/LivingVillage.Desktop.fsproj +++ b/src/LivingVillage.Desktop/LivingVillage.Desktop.fsproj @@ -21,6 +21,7 @@ + -- cgit v1.2.3