72 lines
3.1 KiB
Clojure
72 lines
3.1 KiB
Clojure
(ns advent.actions
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(:require [play-clj.core :refer :all]
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[play-clj.ui :refer :all]
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[play-clj.utils :refer :all]
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[play-clj.g2d :refer :all]
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[clojure.pprint]
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[advent.pathfind]
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[advent.actions :as actions]
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[advent.screens.dialogue :as dialogue])
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(:import [com.badlogic.gdx.graphics Pixmap Pixmap$Filter Texture Texture$TextureFilter]
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[com.badlogic.gdx.graphics.g2d TextureRegion]))
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(defn jump-to [screen entities entity [x y]]
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(let [scale-fn (-> entities :background :scale-fn)
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entity (assoc entity :x x
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:y y
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:baseline (- 240 y))]
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(if (:scaled entity)
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(assoc entity :scale-x (scale-fn y) :scale-y (scale-fn y))
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entity)))
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(defn walk-to [[target-x target-y] target-id]
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(fn [screen entities]
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(let [{from-x :x from-y :y :keys [left right anim] :as target-entity} (entities target-id)]
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(let [delta-x (- target-x from-x)
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delta-y (- target-y from-y)
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mag (Math/sqrt (+ (* delta-x delta-x) (* delta-y delta-y)))
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moved-x (* 1.5 (/ delta-x mag))
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moved-y (* 1.5 (/ delta-y mag))]
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(if (< mag 1)
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(assoc entities target-id (assoc target-entity :actions (rest (:actions target-entity)) :anim nil))
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(assoc entities target-id
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(assoc (jump-to screen entities target-entity [(+ moved-x from-x) (+ moved-y from-y)])
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:anim (if (< moved-x 0) left right))))))))
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(defn stop [target-id]
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(fn [screen entities]
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(let [target (target-id entities)]
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(run! dialogue/talking-screen :stop-talk :target-id target-id)
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(assoc-in entities [target-id] (merge target
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{:anim nil
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:actions (rest (:actions target))}
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(when (:anim target)
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(texture (animation! (:anim target) :get-key-frame 0.25))))))))
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(defn from-path [screen entities target-id [x y]]
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(let [entity (target-id entities)
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path (vec (take-nth 4 (advent.pathfind/visit-all
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(:collision (:background entities))
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[(int (:x entity)) (int (:y entity))]
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[(int x) (int y)])))
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actions (when (seq path)
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(concat
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[(stop target-id)]
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(map #(walk-to % target-id) (conj path [x y]))
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[(stop target-id)]))]
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actions))
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(defn talk [target-id text]
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(fn [screen entities]
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(let [target-y (get-in entities [target-id :y])
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scale-fn (get-in entities [:background :scale-fn])
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scale (scale-fn target-y)
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height (* scale 36)]
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(run! dialogue/talking-screen :on-talk :text text
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:x (get-in entities [target-id :x]) :y (+ (get-in entities [target-id :y]) height)
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:target-id target-id
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:scale scale)
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(-> entities
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(update-in [target-id :actions] rest)
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(assoc-in [target-id :anim] (get-in entities [target-id :talk]))))))
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