Human AI with pathfinding and room hazard avoidance

2015-11-23 01:22:38 +02:00
parent 77024a31fb
commit c456fa3c90
32 changed files with 665 additions and 126 deletions
@@ -0,0 +1,89 @@
+using Microsoft.Xna.Framework;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Barotrauma
+{
+    class AIObjectiveFindSafety : AIObjective
+    {
+        const float SearchHullInterval = 1.0f;
+        const float MinSafety = 50.0f;
+
+        AIObjectiveGoTo gotoObjective;
+        
+        float currenthullSafety;
+
+        float searchHullTimer;
+
+        protected override void Act(float deltaTime, Character character)
+        {
+            if (character.AnimController.CurrentHull == null || GetHullSafety(character.AnimController.CurrentHull) > MinSafety)
+            {
+                character.AIController.SteeringManager.SteeringSeek(character.AnimController.CurrentHull.Position);
+
+                gotoObjective = null;
+                return;
+            }
+
+            if (searchHullTimer>0.0f)
+            {
+                searchHullTimer -= deltaTime;
+                return;
+            }
+
+            searchHullTimer = SearchHullInterval;
+
+            Hull bestHull = null;
+            float bestValue = currenthullSafety;
+
+            foreach (Hull hull in Hull.hullList)
+            {
+                if (hull == character.AnimController.CurrentHull) continue;
+
+                float hullValue =  GetHullSafety(hull);
+                hullValue -= (float)Math.Sqrt(Math.Abs(character.Position.X- hull.Position.X));
+                hullValue -= (float)Math.Sqrt(Math.Abs(character.Position.Y - hull.Position.Y)*2.0f);
+
+                if (bestHull==null || hullValue > bestValue)
+                {
+                    bestHull = hull;
+                    bestValue = hullValue;
+                }
+            }
+
+            if (bestHull != null)
+            {
+                gotoObjective = new AIObjectiveGoTo(bestHull.AiTarget, character);
+                //character.AIController.SelectTarget(bestHull.AiTarget);
+            }
+
+            gotoObjective.TryComplete(deltaTime, character);
+        }
+
+        public override float GetPriority(Character character)
+        {
+            if (character.AnimController.CurrentHull == null) return 0.0f;
+            currenthullSafety = GetHullSafety(character.AnimController.CurrentHull);
+            priority = 100.0f - currenthullSafety;
+            return priority;
+        }
+
+        private float GetHullSafety(Hull hull)
+        {
+            float waterPercentage = (hull.Volume / hull.FullVolume)*100.0f;
+            float fireAmount = 0.0f;
+
+            foreach (FireSource fireSource in hull.FireSources)
+            {
+                fireAmount += fireSource.Size.X;
+            }
+            
+            float safety = 100.0f - fireAmount - waterPercentage;
+            if (hull.OxygenPercentage < 30.0f) safety -= (30.0f-hull.OxygenPercentage)*3.0f;
+
+            return safety;
+        }
+    }
+}