dndengine.clj

;; EFFECTS
;; effects are the fundamentall building block of the engine. they provide a means of interacting with entities and changing their state. they should be as mini.al as possible, leaving the method of their application to higher order elements.

{:type :constant
 :target "%.aim"
 :operator :add
 :value 5}

{:type :expression
 :target "%.mobility"
 :operator :add
 :expression "%.mobility * 0.2"}

{:type :expression
 :target "%.will"
 :operator :sub
 :expression "(min (enemies-in-los %) 5)"}

;; ATTRIBUTES
;; attributes are meant to be a way of budling effects and other associated metadata (possible time-to-live, what to do when they are removed) so that other conponents can apply complex sets of effects by referencing an attribute's key. they can also specify dependencies on other attributes. 

;; im still trying to decide if i want ttl's and other action oriented metadata as part of attributes pr not, and if that metadata should be placed in abilities.

{:key :hunkered
 :name "Hunkered Down"
 :description "Pressed yourself close against yourcover"
 :requires {:or [:half-cover :full-cover]}
 :effects [{:type constant
            :target "%.defense"
            :operator :add
            :value 20}]}

{:key :acided
 :name "Acided"
 :description "Covered in toxic acid that's eating away at your armor and effecting  your movement."
 :ttl 3
 :repeats false
 :effects [{:type :expression
            :target "%.mobility"
            :operator :set
            :expression "%.mobility / 2"}
           {:type :constant
            :target "%.aim"
            :operator :sub
            :value 20}]}

{:key :on-fire
 :name "On Fire"
 :description "Lit on fire and taking damage over time"
 :ttl 3
 :repeats true
 :effects [{:type :constant
            :target "%.health"
            :operator :sub
            :value 5}]}

;; ENTITIES
;; entities are anything that has a physical manifestation. they are patloads for user defined characteristics that can be targeted by effects.

;; possibly entities would be augmented by systems that provide the actual functionality of being a player, an npc, etc.


{:key :sectoid
 :name "Sectoid"
 :description "Ayyy Lmao"
 :characteristics {:health 100
                   :mobility 11}
 :traits #{}
 :abilities #{}
 :systems #{}}

;; ABILITIES
;; abilities are functions capable of imparting effects/attributes on command. they cover anything that acts upon the world; shooting, healing, etc. 

;; SYSTEMS
;; [LONG TERM GOAL]
;; Systems are modular pieces of functionality that can be applied to entities. they cover anything from movement, player, containers, and more.