[Change] Unified attack thinking in ai scripts.

scripts/ai/collective.lua

@@ -6,7 +6,11 @@ control_rate = 0.5
 function control()
   local task = ai.taskname()
 
-  if task == "none" then
+  -- Think function for attack.
+  if task == "attack" then
+    attack_think()
+
+  elseif task == "none" then
     local enemy = ai.getenemy()
 
   if enemey ~= 0 then
@@ -16,8 +20,6 @@ function control()
   end
   elseif task == "hyperspace" then
     ai.hyperspace()
-  else
-    attack_closestenemy()
  end
 end
 

scripts/ai/empire.lua

@@ -5,11 +5,15 @@ control_rate = 2
 
 -- Required "control" function.
 function control()
- task = ai.taskname()
+  local task = ai.taskname()
+  local enemy = ai.getenemy()
 
- enemy = ai.getenemy()
- if task ~= "attack" and enemy ~= nil then
-   ai.hostile(enemy)
+  -- Think for attacking.
+  if task == "attack" then
+    attack_think()
+
+  -- Enemy sighted.
+  elseif enemy ~= nil then
    ai.pushtask(0, "attack", enemy)
 
  -- Enter hyperspace if possible.
@@ -17,7 +21,7 @@ function control()
    ai.hyperspace() -- Try to hyperspace.
 
  -- Get new task.
- elseif task == "none" then
+ else
   planet = ai.landplanet()
   -- Planet needs to exist..
   if planet == nil then

scripts/ai/include/basic.lua

@@ -6,16 +6,21 @@
 --]]
 
 --[[
---  Replaces the current target with a closer one if possible.
+--  Should be run when the pilot is in attack mode, something like:
+--  if task == "attack" then attack_think() end
+--  in control().
 --]]
-function attack_closestenemy()
-  local task = ai.taskname()
+function attack_think()
+  local enemy = ai.getenemy()
+  local target = ai.targetid()
 
-  if task == "attack" then
-    local enemy = ai.getenemy()
-    local target = ai.targetid()
+  -- Get new target if it's closer.
+  if enemy ~= target then
+    local dist = ai.dist(ai.pos(target))
+    local range = ai.getweaprange()
 
-    if enemy ~= target then
+    -- Shouldn't switch targets if close.
+    if dist > range * 1.3 then
       ai.poptask()
       ai.pushtask(0, "attack", enemy)
     end

scripts/ai/pirate.lua

@@ -7,7 +7,14 @@ control_rate = 2
 function control()
   task = ai.taskname()
 
-  if task == "hyperspace" then
+  if task == "attack" then
+    if ai.parmour() < 80 then
+      ai.pushtask(0, "runaway", ai.targetid())
+    else
+      attack_think()
+    end
+
+  elseif task == "hyperspace" then
     ai.hyperspace() -- Try to hyperspace.
 
   -- Running pilot has healed up some.
@@ -19,30 +26,12 @@ function control()
    ai.hyperspace()
   end
 
-  -- Hurt pilot wants to run away.
-  elseif task == "attack" then
-    if ai.parmour() < 80 then
-      ai.pushtask(0, "runaway", ai.targetid())
-    end
-
-    -- Nothing to do.
-  elseif task ~= "attack" and task ~= "runaway" then
+  -- Nothing to do.
+  else
     -- If getenemy() is 0, there is no enemy around.
     enemy = ai.getenemy()
     if ai.parmour() == 100 and enemy ~= 0 then
-      -- Taunts.
-      num = rnd.int(0,5)
-      if num == 0 then msg = "Prepare to be boarded!"
-      elseif num == 1 then msg = "Whoa! Lookie what we found here!"
-      elseif num == 2 then msg = "What's a ship like you doing in a place like this?"
-      end
-      ai.comm(enemy,msg)
-
-      -- Make hostile to the enemy (mainly, player! YOU!).
-      ai.hostile(enemy)
-
-      -- Go ahead and attack.
-      ai.combat() -- Set to be in combat.
+      taunt(enemy, true)
       ai.pushtask(0, "attack", enemy) -- Begin the attack.
     -- Nothing to attack.
     else
@@ -57,7 +46,7 @@ function attacked(attacker)
 
   -- Pirate isn't fighting or fleeing already.
   if task ~= "attack" and task ~= "runaway" then
-    taunt(attacker)
+    taunt(attacker, false)
     ai.pushtask(0, "attack", attacker)
   -- Pirate is fighting bit switches to new target (doesn't forget the old on though).
   elseif task == "attack" then
@@ -73,24 +62,27 @@ function create()
  end
 end
 
-function taunt(target)
+function taunt(target, offense)
+  -- Only 50$ of actually taunting.
+  if rnd.int(0,1) == 0 then
+    return
+  end
+
   -- Some taunts.
-  taunts = {
-    "How dare you attack me?!",
-    "Aha! You think you can best me!?",
-    "JUST! DIE!",
-    "Ohh, I'm going to enjoy this!"
-  }
+  if offense then
+    taunts = {
+      "Prepare to be boarded!",
+      "Yohoho!",
+      "What's a pretty ship like you doing in a place like this?!"
+    }
+  else
+    taunts = {
+      "You dare attack me?!",
+      "You think that you can take me on?!",
+      "JUST!! DIE!!",
+      "You'll regret this!"
+    }
+  end
   ai.comm(target, taunts[rnd.int(1, #taunts)])
 end
 
--- Fly to the player. Pointless until hyperspace is implemented.
-function fly()
-  target = player
-  dir = ai.face(target)
-  dist = ai.dist(ai.pos(target))
-  if dir < 10 and dist > 300 then
-    ai.accel()
-  end
-end
-