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First cut at a time travel screen (woooooooo!!)

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This commit is contained in:
Jeremy Penner 2013-03-19 21:50:11 -04:00
parent bfe42007f3
commit 0e9de617fa
1 changed files with 57 additions and 16 deletions
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65
src/hottub/core.clj
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@ -3,33 +3,74 @@
[hottub.gs :as gs]
[hottub.resource :as res]
[hottub.timeline :as tln]
[hottub.screen :as scr]))
[hottub.screen :as scr]
[hottub.util :as u]))
(defn -main [& args]
(res/start-resource-expiry-thread)
(slick/start-game "Test game" {:id :game}))
(defmethod scr/screen-from-spec :game [spec]
{:gs (gs/update-gs gs/gs-empty
{:tln (tln/timeline-insert (tln/timeline-create) 0
(gs/update-gs gs/gs-empty
(gs/add-index :name)
(gs/add-index :type)
(gs/set-entity (gs/gen-id) {:type :sprite :x 50 :y 50
:image "res/man.png" :name :man}))})
:image "res/man.png" :name :man})))
:timestamp-last (u/timestamp)})
(defmethod scr/spec-from-screen :game [screen] {:id :game})
(defmethod slick/update-game :game [state inputtln delta]
(assoc state :gs (gs/update-gs (:gs state)
(if-let [input (tln/timeline-last-value inputtln)]
(defn update-gs [input]
(let [man (first (gs/q :name :man))]
(gs/update-entity (assoc man :x (:mousex input) :y (:mousey input))))))))
(gs/update-entity (assoc man :x (:mousex input) :y (:mousey input)))))
(defmethod slick/render-game :game [state graphics]
(gs/with-gs (:gs state)
(defn render-gs [gs]
(gs/with-gs gs
(doseq [sprite (gs/q :type :sprite)]
(if-let [image (res/get-image (:image sprite))]
(.draw image (:x sprite) (:y sprite))))))
(defmethod slick/update-game :game [screen inputtln delta]
(if-let [input (tln/timeline-last-value inputtln)]
(if (contains? (:keys input) ",")
(scr/push-modal-screen screen
{:id :timeshift
:ts (-> (:tln screen) last key)})
(let [ts (u/timestamp)
screentslast (-> (:tln screen) last key)
screents (+ screentslast (- ts (:timestamp-last screen)))
tln (:tln screen)
gslast (tln/timeline-last-value tln)
gsnext (gs/update-gs gslast (update-gs input))
tlnnext (tln/timeline-insert tln screents gsnext)
screennext (assoc screen :timestamp-last ts :tln tlnnext)]
(scr/update-screen screen screennext)))))
(defmethod slick/render-game :game [screen graphics]
(render-gs (tln/timeline-last-value (:tln screen))))
(defmethod slick/update-game :timeshift [screen inputtln delta]
(let [input-from-tln (tln/timeline-last-value inputtln)
input-from-screen (:input screen)
input (or input-from-tln input-from-screen)
keys (:keys input)]
(if (contains? keys " ")
(scr/pop-modal-screen screen)
(let [ts (:ts screen)
ts (cond
(contains? keys ",") (- ts delta)
(contains? keys ".") (+ ts delta)
:else ts)
screennext (assoc screen :ts ts :input input)]
(scr/update-screen screen screennext)))))
(defmethod slick/render-game :timeshift [screen graphics]
(let [subscreen (scr/screen-behind-modal screen)
tln (:tln subscreen)
ts (tln/time-nearest tln (:ts screen))
gs (last (get tln ts))]
(render-gs gs)))
;;; repl helpers
(def ^:dynamic g nil)
(def ^:dynamic s nil)
@ -40,4 +81,4 @@
(defmethod slick/eval-with-bindings :default [state game f]
(binding [g game s state *newscreen* (atom nil)]
(let [gsnew (gs/update-gs (:gs state) (f))]
(slick/game-setstate! game (or @*newscreen* (assoc state :gs gsnew))))))
(slick/game-setscreen! game (or @*newscreen* (assoc state :gs gsnew))))))