From 7c3131522d1e53d5fb047c875fea39465c86985e Mon Sep 17 00:00:00 2001 From: Matthew Huntington Date: Fri, 20 Feb 2026 18:53:27 -0500 Subject: [PATCH] first build --- index.html | 534 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 534 insertions(+) create mode 100644 index.html diff --git a/index.html b/index.html new file mode 100644 index 0000000..1b1bae5 --- /dev/null +++ b/index.html @@ -0,0 +1,534 @@ + + + + + + PF2e Perception & Stealth + + + + + +
+

PF2e Perception & Stealth

+

Flow of Control Reference — Player Core

+
+ +
+ + + + + +
+
+ + +
+ + +
+

Stealth Actions Flow

+

From the stealther’s perspective — how detection states change based on actions you take

+ +
+
Observed
+
Hidden
+
Undetected
+
Unnoticed
+
Action / Roll
+
+ +
+
+%%{init: {'theme':'dark','themeVariables':{'background':'#161210','primaryColor':'#193a14','primaryTextColor':'#e8d5b0','primaryBorderColor':'#3a7c32','lineColor':'#9a7e56','secondaryColor':'#3e2e06','tertiaryColor':'#1a2840','edgeLabelBackground':'#211a13','clusterBkg':'#211a13'}}}%% +flowchart LR + + classDef obs fill:#193a14,stroke:#3a7c32,color:#b8e8b0,rx:30 + classDef hid fill:#3e2e06,stroke:#a07a10,color:#f0e060 + classDef und fill:#3e1a06,stroke:#a04010,color:#f0a868 + classDef unn fill:#300c0c,stroke:#8a1010,color:#f07070 + classDef act fill:#1a2840,stroke:#4080b0,color:#90c0e8 + classDef roll fill:#201828,stroke:#6040a0,color:#c0a0e8 + + OBS(["OBSERVED"]):::obs + HID(["HIDDEN"]):::hid + UND(["UNDETECTED"]):::und + UNN(["UNNOTICED"]):::unn + + HIDE["HIDE + — needs cover or concealment — + secret Stealth roll vs Perception DC + Standard cover +2 · Greater cover +4"]:::act + + SNEAK["SNEAK + — cover at START and END — + move ≤ half Speed + secret Stealth roll vs Perception DC"]:::act + + OBS --> HIDE + HIDE -->|"✓ Success"| HID + HIDE -->|"✗ Failure"| OBS + + HID --> SNEAK + HID -->|"Non-stealthy action + or Strike"| OBS + HID -->|"STEP + with cover / concealment"| HID + HID -->|"Unobtrusive action + GM may require Stealth"| HID + + SNEAK -->|"✓ Success"| UND + SNEAK -->|"✗ Failure"| HID + SNEAK -->|"✗✗ Crit Failure + (not invisible)"| OBS + + UND -->|"SNEAK ✓ Success"| UND + UND -->|"HIDE ✓ Success"| HID + UND -->|"Speak or + make loud noise"| OBS + + UNN -.->|"may also be"| UND + UNN -->|"Speak, loud noise + or non-stealthy action"| OBS +
+
+ +
+

Key Rules

+
    +
  • HIDE requires that you have cover or concealment from the target. You can’t hide in the open.
    • +
  • SNEAK requires cover or concealment at both the start and end of your movement. You move up to half your Speed.
    • +
  • Taking any non-unobtrusive action while hidden immediately makes you Observed.
    • +
  • A Strike from a hidden or undetected position makes you Observed after the attack (target now knows your location).
    • +
  • An Invisible creature that critically fails a Sneak roll becomes Hidden rather than Observed, since it cannot be seen.
    • +
  • AVOID NOTICE (Exploration): Roll Stealth to start an encounter Hidden or Undetected rather than Observed.
    • +
+
+
+ + +
+

Detection & Targeting Flow

+

From the detector’s perspective — how to determine a creature’s condition and what you can do about it

+ +
+
Observed
+
Hidden
+
Undetected
+
Unnoticed
+
Action / Roll
+
Decision
+
+ +
+
+%%{init: {'theme':'dark','themeVariables':{'background':'#161210','primaryColor':'#211a13','primaryTextColor':'#e8d5b0','primaryBorderColor':'#7a5c18','lineColor':'#9a7e56','secondaryColor':'#2e2318','tertiaryColor':'#1a2840','edgeLabelBackground':'#211a13'}}}%% +flowchart TD + + classDef obs fill:#193a14,stroke:#3a7c32,color:#b8e8b0 + classDef hid fill:#3e2e06,stroke:#a07a10,color:#f0e060 + classDef und fill:#3e1a06,stroke:#a04010,color:#f0a868 + classDef unn fill:#300c0c,stroke:#8a1010,color:#f07070 + classDef act fill:#1a2840,stroke:#4080b0,color:#90c0e8 + classDef dec fill:#201828,stroke:#6040a0,color:#d0c0f0 + classDef start fill:#2a1f14,stroke:#7a5c18,color:#e8d5b0 + + START(["Start: What can you perceive?"]):::start + + Q1{"Can your precise sense\ndetect the creature?"}:::dec + Q2{"Do you know it\nis nearby?"}:::dec + Q3{"Do you know\nwhich space?"}:::dec + + OBS(["OBSERVED + — target normally — + off-guard? No + (if also concealed: DC 5 flat check)"]):::obs + + HID(["HIDDEN + — you know the space — + off-guard to you + DC 11 flat check before roll + Fail = actions wasted, still off-guard"]):::hid + + UND(["UNDETECTED + — don't know the space — + off-guard to you + Pick a square to attack + GM secretly rolls flat check + attack + Won't reveal why you missed"]):::und + + UNN(["UNNOTICED + — no idea it exists — + Cannot target at all"]):::unn + + SEEK["SEEK action + Secret Perception roll + vs creature's Stealth DC"]:::act + + START --> Q1 + Q1 -->|"YES — precise sense works"| OBS + Q1 -->|"NO"| Q2 + Q2 -->|"NO"| UNN + Q2 -->|"YES"| Q3 + Q3 -->|"YES — know the space"| HID + Q3 -->|"NO — don't know the space"| UND + + HID -->|"Use SEEK"| SEEK + UND -->|"Use SEEK"| SEEK + + SEEK -->|"Critical Success"| OBS + SEEK -->|"Success + (precise sense + creature visible)"| OBS + SEEK -->|"Success + (imprecise sense or creature invisible)"| HID + SEEK -->|"Failure — creature + stays at current state"| HID +
+
+ +
+

Targeting Summary

+
    +
  • Observed: Attack normally. If also concealed, attempt a DC 5 flat check before rolling — fail means no effect.
    • +
  • Hidden: Attempt a DC 11 flat check before rolling. On a fail, your actions (and spell slots, resources) are wasted. You remain off-guard to the creature regardless.
    • +
  • Undetected: Declare a square to attack. The GM secretly rolls both the flat check and your attack roll. The GM will not say whether you missed due to the flat check, the attack roll, or choosing the wrong square.
    • +
  • Unnoticed: You cannot target the creature directly. Area effects still work normally against undetected creatures.
    • +
  • Invisible creature starts as Hidden if you were already observing it when it turned invisible (you last know where it was). It can then Sneak to become Undetected.
    • +
  • Off-guard applies against you when attacking a creature that is hidden or undetected relative to you — it gets the −2 AC penalty.
    • +
+
+
+
+
+ + + +