gcblue-commits

[<ddc...@us...>]

Update of /cvsroot/gcblue/gcb_wx/scripts
In directory sc8-pr-cvs1:/tmp/cvs-serv11677/scripts

Modified Files:
	AI.py 
Log Message:


Index: AI.py
===================================================================
RCS file: /cvsroot/gcblue/gcb_wx/scripts/AI.py,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** AI.py	5 Jan 2004 02:48:02 -0000	1.6
--- AI.py	8 Jan 2004 23:54:27 -0000	1.7
***************
*** 15,37 ****
          return
      elif (order_name == 'Patrol'):
!         targetid = UnitInfo.GetTarget()
!         if targetid != 0xFFFFFFFF:
!             InterceptTarget(UnitInfo)
!             return
!         UnitInfo.SetVar(0,0)  # set user variable 0 to zero
!         # patrol box
!         UnitInfo.SetAllSensorState(1)
!         heading = UnitInfo.GetHeading()
!         heading = heading + 45.0
!         if (heading >= 360.0):
!             heading = heading - 360.0
!         UnitInfo.SetHeading(heading)
!         UnitInfo.SetUpdate(30.0)
!         # engage hostiles in range
!         track_id = GetSuitableTarget(UnitInfo)
!         if (track_id != 0xFFFFFFFF):
!             UnitInfo.SetTarget(track_id)
!             UnitInfo.SetHeadingToInterceptTarget()
!             UnitInfo.SetUpdate(4.0)
      elif (order_name == 'Crash'):
          UnitInfo.SetAlt(0)
--- 15,19 ----
          return
      elif (order_name == 'Patrol'):
!         Patrol(UnitInfo)
      elif (order_name == 'Crash'):
          UnitInfo.SetAlt(0)
***************
*** 52,55 ****
--- 34,39 ----
              UnitInfo.CompletedOrder()
          AvoidGround(UnitInfo)   # adjust altitude to avoid crashing into terrain
+     elif (order_name == 'ZigZagPatrol'):
+         ZigZagPatrol(UnitInfo)
  
  
***************
*** 64,67 ****
--- 48,117 ----
  
  
+ def Patrol(UI):
+     targetid = UI.GetTarget()
+     if targetid != 0xFFFFFFFF:
+         InterceptTarget(UI)
+         return
+     UI.SetVar(0,0)  # set user variable 0 to zero
+     # patrol box
+     UI.SetAllSensorState(1)
+     heading = UI.GetHeading()
+     heading = heading + 45.0
+     if (heading >= 360.0):
+         heading = heading - 360.0
+     UI.SetHeading(heading)
+     UI.SetUpdate(30.0)
+     # engage hostiles in range
+     track_id = GetSuitableTarget(UI)
+     if (track_id != 0xFFFFFFFF):
+         UI.SetTarget(track_id)
+         UI.SetHeadingToInterceptTarget()
+         UI.SetUpdate(4.0)
+ 
+ # Patrols in given direction, zig-zagging along the way
+ # then reverses path
+ def ZigZagPatrol(UI):
+     targetid = UI.GetTarget()
+     if targetid != 0xFFFFFFFF:
+         InterceptTarget(UI)
+         return
+     call_count = UI.GetVar(0)
+     call_count = call_count + 1
+     UI.SetVar(0, call_count)   # increment call count
+     if (call_count == 1):
+         UI.SetVar(1, int(UI.GetHeading()))  # this heading is used to determine patrol direction
+         UI.SetAllSensorState(1)
+         if (UI.Rand() < 0.5):
+             UI.SetVar(2, 1)
+         else:
+             UI.SetVar(2, 0)
+     
+     axis_heading = float(UI.GetVar(1))
+     go_left = UI.GetVar(2)
+     if (go_left == 1):
+         UI.SetHeading(axis_heading - 30)
+     else:
+         UI.SetHeading(axis_heading + 30)
+         
+     UI.SetUpdate(20.0 + 2*UI.Rand())
+     # engage hostiles in range
+     track_id = GetSuitableTarget(UI)
+     if (track_id != 0xFFFFFFFF):
+         UI.SetTarget(track_id)
+         UI.SetHeadingToInterceptTarget()
+         UI.SetUpdate(4.0)        
+ 
+ # abs() of difference between two radian headings
+ def RadianHeadingDiff(h1, h2):
+     delta = h1 - h2
+     if (delta < -3.14159):
+         delta = delta + 6.28318
+     elif (delta > 3.14159):
+         delta = delta - 6.28318
+     if (delta < 0):
+         delta = -delta
+     return delta
+ 
+ 
  # Run from hostile missiles (will run from antiship missiles too!)
  # return 1 if evading, 0 otherwise
***************
*** 69,77 ****
      if (UI.IsAir()==0):
          return 0  # only evade with air platforms
      
!     threat_track = UI.GetClosestMissileTrack(100, 3)
      if (threat_track.IsValid()):
-         print 'fleeing'
-         flee_heading = UI.GetInterceptHeadingToTrack(threat_track) + 3.14
          UI.SetHeadingRad(flee_heading)  # run from missile
          if (UI.GetFuel() > 0.2):
--- 119,146 ----
      if (UI.IsAir()==0):
          return 0  # only evade with air platforms
+ 
+     max_range = 100  # max range in km to look for missile threats
+     track_list = UI.GetTrackList(64, max_range, 3) # 64 returns missiles, 3 hostiles
+     nMissiles = track_list.Size()
+     closest_range = 10000
+     foundThreat = 0
+     flee_heading = 0
+     for n in range(0, nMissiles):
+         missile_track = track_list.GetTrack(n)
+         track_range = UI.GetRangeToTrack(missile_track)
+         if (track_range < closest_range) or (~foundThreat):
+             int_heading = UI.GetInterceptHeadingToTrack(missile_track)
+             heading_diff = RadianHeadingDiff(int_heading, UI.GetHeadingRad())
+             diff_thresh = 15/track_range   # 90 deg at 10 km
+             if (heading_diff < diff_thresh): 
+                 foundThreat = 1
+                 closest_range = track_range
+                 flee_heading = int_heading + 3.14
+                 threat_track = missile_track
      
!     if (foundThreat==0):
!         return 0
! 
      if (threat_track.IsValid()):
          UI.SetHeadingRad(flee_heading)  # run from missile
          if (UI.GetFuel() > 0.2):
***************
*** 79,83 ****
          else:
              SetFractionalSpeed(UI, 1.0)
!         UI.SetUpdate(4.0)
          return 1
      else:
--- 148,152 ----
          else:
              SetFractionalSpeed(UI, 1.0)
!         UI.SetUpdate(6.0)
          return 1
      else: