From 1733fa81c7fcd230249b2cb9d6383d1cfa39a8e1 Mon Sep 17 00:00:00 2001
From: Remington Covert <bryce@brycecovertoperations.com>
Date: Sun, 1 Mar 2015 17:33:23 -0800
Subject: [PATCH] moving everyone.

---
 desktop/src-common/advent/screens/scene.clj | 25 +++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/desktop/src-common/advent/screens/scene.clj b/desktop/src-common/advent/screens/scene.clj
index 1a30f7db..01671781 100644
--- a/desktop/src-common/advent/screens/scene.clj
+++ b/desktop/src-common/advent/screens/scene.clj
@@ -36,6 +36,7 @@
             [clojure.core.async :refer [put! <! <!! >! chan go thread take! alts!!]])
   (:import [com.badlogic.gdx.graphics Pixmap Pixmap$Filter Texture Texture$TextureFilter GL20 GL30]
            [com.badlogic.gdx.graphics.g2d TextureRegion Animation]
+           [com.badlogic.gdx.math Vector3 Matrix4]
            [com.badlogic.gdx.utils.viewport FitViewport]
            [com.badlogic.gdx.scenes.scene2d Actor Stage]
            [java.lang Object]
@@ -431,6 +432,27 @@
     (update-fn screen entities)
     entities))
 
+(defn render-foreground [{:keys [camera renderer] :as screen} foreground]
+  (let [tmp (Vector3.)
+        tmp2 (Vector3.)
+        parallax-view (Matrix4.)
+        parallax-combined (Matrix4.)]
+    (.update camera)
+    (.set tmp (.position camera))
+    (set! (.x tmp) (* (.x tmp) 2))
+    (set! (.y tmp) (* (.y tmp) 2))
+    (.setToLookAt parallax-view tmp (-> tmp2
+                                          (.set tmp)
+                                          (.add (.direction camera))
+                                          ( .up camera)))
+    (.set parallax-combined (.projection camera))
+    (Matrix4/mul (.val parallax-combined) (.val parallax-view))
+    (.setProjectionMatrix camera parallax-combined)
+    (let [batch (.getBatch renderer)]
+      (.begin batch)
+      (draw! (:tex foreground) screen batch)
+      (.end batch))))
+
 
 (defscreen scene
   :on-timer
@@ -497,6 +519,8 @@
                                  :last :main
                                  :override nil
                                  :last-pos [0 0]}
+                        :foreground {:object nil
+                                     :tex (assoc (texture "outsidehouse/foreground.png") :x 0 :y 0 :baseline 1000)}
                         
                         :all-items (assoc items/items :object nil)
                         :started? {:value false
@@ -567,6 +591,7 @@
         (when m
           (music! m :set-volume (get-in entities [:volume :value]))))
       (render! screen (sort-by :baseline all-entities))
+      (render-foreground screen (:foreground entities))
       entities))
 
   :on-resize (fn [{:keys [viewport width height]} [entities]]