v1.4.4

attic/npcs/allergen/behavior.lua

@@ -0,0 +1,99 @@
+function init()
+  self.dead = false
+  self.sensors = sensors.create()
+
+  self.state = stateMachine.create({
+    "idleState",
+    "shootState",
+  })
+  self.state.leavingState = function(stateName)
+    entity.setAnimationState("default", "idle")
+  end
+
+  entity.setDamageOnTouch(true)
+  entity.setAggressive(true)
+  entity.setAnimationState("default", "idle")
+end
+
+function update(dt)
+  if util.trackTarget(entity.configParameter("shoot.seedShotDistance")) then
+    self.state.pickState({ targetId = self.targetId })
+  end
+  self.state.update(dt)
+  self.sensors.clear()
+end
+
+function damage(args)
+  if entity.health() <= 0 then
+    self.state.pickState({ die = true })
+  else
+    self.state.pickState({ targetId = args.sourceId })
+  end
+end
+
+--------------------------------------------------------------------------------
+idleState = {}
+
+function idleState.enter()
+  return { }
+end
+
+function idleState.update(dt, stateData)
+  entity.setAnimationState("default", "idle")
+
+  return true
+end
+
+--------------------------------------------------------------------------------
+shootState = {}
+
+function shootState.enterWith(args)
+  if args.targetId == nil then return nil end
+  
+  local targetPosition = world.entityPosition(args.targetId)
+  if targetPosition == nil then return nil end
+
+  return {
+    targetId = args.targetId,
+    targetPosition = targetPosition,
+    shotFired = false,
+    timer = entity.configParameter("shoot.fireTime"),
+    recoilTimer = entity.configParameter("shoot.recoilTime"),
+  }
+end
+
+function shootState.update(dt, stateData)
+  entity.setAnimationState("default", "shoot")
+
+  stateData.timer = stateData.timer - dt
+  if stateData.timer <= 0 then
+    if not stateData.shotFired then
+      local randDir = math.random() * math.pi -- 0 to pi
+      local direction = {
+        math.cos(randDir),
+        math.sin(randDir)
+      }
+      local oldTid = self.targetId
+      self.targetId = nil
+      if util.trackTarget(entity.configParameter("shoot.pollenShotDistance")) then
+        -- entity.setFireDirection({0, 0}, direction)
+        -- entity.startFiring("pollen")
+      else
+        self.targetId = oldTid
+        -- entity.setFireDirection({0, 0}, direction)
+        -- entity.startFiring("seed")
+      end
+      stateData.shotFired = true
+    else
+      -- entity.stopFiring()
+    end
+    stateData.recoilTimer = stateData.recoilTimer - dt
+  end
+
+  if stateData.recoilTimer <= 0 then
+    self.targetId = nil
+    return true
+  end
+
+  return false
+end