Grimrock

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materialOverrides = { ["wizard"] = "textureXY", },

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		{
			class = "RangedBrain",
			name = "brain",
			sight = 10,
         		morale = 100,
			seeInvisible = true,
			allAroundSight = true,
			onBloodied = function(self)
				self.go.move:setCooldown(1)
				self.go.basicAttack:setCooldown(2)
			end,
			onThink = function(self)
				-- call brain script
				local script = self.go.brainScript
				if script and script:isEnabled() and script.think then script.think(self) end
			end,
		}
		{
			class = "Script",
			name = "brainScript",
		},
		

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			onInit = function(self)
				self.go.brainScript:loadFile("mod_assets/monsters/lindworm_brainscript.lua")
			end

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scriptEntityHelper = "scriptHelper"
move = {{-1,-1},{-1,1},{1,-1},{1,1}}
cKnockback = 0


function think(self)
	
	local maxDist = 6
	local minDist = 3
	local retval = true
	local seq = math.random()
	local dist = math.max(math.abs(party.x - self.go.x), math.abs(party.y - self.go.y)) 
	local dx,dy = toLocal(self.go.x, self.go.y, self.go.facing, party.x, party.y)

	local udx,udy = getForward(self.go.facing)
	local urdx,urdy = getForward((self.go.facing +1) % 4)
	local ux = 0
	local uy = 0
	local front = 0
	local lateral = 0
	
	if (self.go.monster:getHealth()) <= 1 then 
		return self:performAction("die") or self:wait()
	end

	
  if self.go.map:checkLineOfFire(self.go.x+udx, self.go.y+udy, party.x, party.y, party.elevation) then
    if -2<dy and dy<2 and -2<dx and dx<2 then
      if cKnockback > 2 then
        local r = math.random(#move)
        for i = 1,#move do
          local j = (r+i)%#move+1
          if isSafeTile(self.go.x+move[j][1], self.go.y+move[j][2]) then
            local retval = self:seek(self.go.x+move[j][1], self.go.y+move[j][2])
            if retval then return retval end
          end
        end
      end
      cKnockback = cKnockback + 1
      return self:performAction("knockback")
		elseif dy == 2 then
			cKnockback = 0
			if dx == -1 then retval = self:performAction("wingAttack") or self:performAction("attackFrontLeft") or self:wait() end
			if dx == 1 then retval = self:performAction("attackFrontRight") or self:wait() end
			if dx == 0 then retval = self:performAction("basicAttack") or self:goTo("mine_rock_border_292") or self:wait() end  
		elseif (dx == 2 or dx == -2) and dy == 1 then
			cKnockback = 0
      return (dx==2 and self:turnRight() or self:turnLeft()) or self:wait()

		elseif  -2<dx and dx<2 and 2<dy and dy<6 then 
      return dx==0 and isSafeTile(self.go.x+5*udx, self.go.y+5*udy) 
      or self:performAction("rangedAttack") or moveTowardsParty(dx, dy, self.go.x+udx, self.go.y+udy) or self:wait()

		end
	end
	
	return retval
end

function isBlocked(front, lateral)
  local udx,udy = getForward(self.go.facing)
  local rdx,rdy = getForward((self.go.facing+1)%4)
  local x,y = self.go.x+udx*front+rdx*lateral, self.go.y+udy*front+rdy*lateral
  if not isSafeTile(x, y) then return true end
  for dy=-1,1 do for dx=-1,1 do if self.go.map:isBlocked(x+dx,y+dy,0) then return true end end end
  return false
end

function isSafeTile(x, y)
  return (x==11 or x==19) and (11<y and y<19) or (11<x and x<19 and 10<y and y<20)
end

function moveTowardsParty(dx, dy, mx, my)
  if dy>0 and isSafeTile(mx, my) then return self.go.brain:moveForward() end
  if dx<0 then return self.go.brain:turnLeft() end
  if dx>0 then return self.go.brain:turnRight() end
  return math.random()<0.5 and self.go.brain:turnLeft() or self.go.brain:turnRight() 
end

function wander()
  if self.go.x==wx and self.go.y==wy then wx,wy = math.random(11,19),math.random(11,19) end
  return self.go.brain:seek(wx,wy)
end