@o_centralnakhonsawan: ใครที่กำลังตามหา OPPO A7 Pro Series 5G จำหน่ายแล้ววว 300 ก็เป็นเจ้าของเครื่องได้🤩🛍️ #OPPOA7ProSeries5GTH #OPPOBrandShop #oppoนครสวรรค์ #OPPOA7Pro5G #OPPOA7ProMax

O-Central Nakhon Sawan
O-Central Nakhon Sawan
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Sunday 27 September 2026 05:40:45 GMT
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That enemy who spotted you, ran behind cover, reloaded, flanked you and opened fire again? He wasn't thinking. He was running four layers, thirty times a second. Here's what's actually happening inside the game every time an NPC notices you: 1. SENSE — a vision cone (a real raycast against the walls), a hearing radius, distance to you, its own health, cover nearby. Updated every tick. 2. DECIDE — the simplest version is a finite state machine: PATROL → sees you → CHASE → close enough → ATTACK → health low → HIDE → you vanish → SEARCH. Five states already look smart. Bigger games use a behavior tree instead: a flowchart it walks top to bottom every tick. Am I dead? Is the player visible? Close enough to attack? If not, move in. 3. NAVIGATE — it can't walk through walls, so the level is cut into a nav mesh (walkable polygons + doorways + stairs) and A* finds the cheapest route across that invisible graph. It doesn't understand the building. It walks a graph you never see. 4. ANIMATE — the decision becomes visible. And the parts that feel most
That enemy who spotted you, ran behind cover, reloaded, flanked you and opened fire again? He wasn't thinking. He was running four layers, thirty times a second. Here's what's actually happening inside the game every time an NPC notices you: 1. SENSE — a vision cone (a real raycast against the walls), a hearing radius, distance to you, its own health, cover nearby. Updated every tick. 2. DECIDE — the simplest version is a finite state machine: PATROL → sees you → CHASE → close enough → ATTACK → health low → HIDE → you vanish → SEARCH. Five states already look smart. Bigger games use a behavior tree instead: a flowchart it walks top to bottom every tick. Am I dead? Is the player visible? Close enough to attack? If not, move in. 3. NAVIGATE — it can't walk through walls, so the level is cut into a nav mesh (walkable polygons + doorways + stairs) and A* finds the cheapest route across that invisible graph. It doesn't understand the building. It walks a graph you never see. 4. ANIMATE — the decision becomes visible. And the parts that feel most "human" are dials a designer turned: accuracy tied to difficulty, a deliberate reaction delay, and a rule that the first shots miss on purpose. A perfectly accurate enemy isn't fun. Open worlds with thousands of NPCs? Only the ones near you get the full stack. Far away, "this person is at work right now" is literally one row in a table until you walk back. Newer tools exist — utility scores, machine learning for specific behaviors, generative AI for dialogue — but most NPCs still ship on the old systems because they're predictable, fast, and a designer can edit a node. The NPC isn't thinking. The game is just extremely good at the illusion. Every overlay in this video is driven by a real simulation: the cone is raycast live, the state flips on the word, the route is real A*. Save this for the next time an enemy "outsmarts" you. #gamedev #npc #gamedesign #howgameswork #behaviortree

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