From dbc822ba1961b67a66e3f9219e47f9fbcc112789 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson@vistahigherlearning.com>
Date: Sat, 17 Apr 2021 16:51:23 -0400
Subject: Add basic text box.

---
 game.scm | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 67 insertions(+), 3 deletions(-)

diff --git a/game.scm b/game.scm
index baaaa00..b5f1aed 100644
--- a/game.scm
+++ b/game.scm
@@ -1,4 +1,7 @@
-(use-modules (chickadee graphics texture)
+(use-modules (chickadee graphics color)
+             (chickadee graphics font)
+             (chickadee graphics texture)
+             (chickadee graphics viewport)
              (chickadee math vector)
              (oop goops)
              (starling asset)
@@ -8,17 +11,78 @@
              (starling node-2d)
              (starling scene))
 
+
+;;;
+;;; Constants
+;;;
+
 (define window-width 1280)
 (define window-height 720)
 (define game-width 640)
 (define game-height 360)
 
-(define-class <game> (<gui-scene>))
+
+;;;
+;;; Assets
+;;;
+
+(define-asset dialog-box-texture (load-image "assets/images/dialog-box.png"))
+(define-asset darkness (load-image "assets/images/darkness.png"))
+(define-asset room-background (load-image "assets/images/room.png"))
+(define-asset monogram-font (load-font "assets/fonts/monogram_extended.ttf" 12))
+
+
+;;;
+;;; Text Box
+;;;
+
+(define-class <text-box> (<widget>)
+  (text #:accessor text #:init-keyword #:text #:init-value "" #:watch? #t))
+
+(define-method (apply-theme (text-box <text-box>))
+  (next-method)
+  (replace text-box
+    (make <label>
+      #:name 'text
+      #:rank 1
+      #:font (font text-box)
+      #:text (text text-box)
+      #:position (vec2 6.0
+                       (- (height text-box)
+                          (font-line-height
+                           (asset-ref
+                            (font text-box))))))))
+
+
+;;;
+;;; Game
+;;;
+
+(define-theme gui-theme
+  (<text-box> (background dialog-box-texture)
+              (font monogram-font)))
+
+(define-class <game> (<gui-scene>)
+  (state #:accessor state #:init-value #f))
+
+(define-method (intro (game <game>))
+  (set! (state game) 'intro)
+  (parameterize ((current-theme gui-theme))
+    (attach-to game
+               (make <sprite>
+                 #:texture darkness)
+               (make <text-box>
+                 #:text "Hello"
+                 #:width game-width
+                 #:height 50.0))))
 
 (define-method (on-boot (game <game>))
   (set! (cameras game)
         (list (make <camera-2d>
-                #:resolution (vec2 game-width game-height)))))
+                #:resolution (vec2 game-width game-height)
+                #:viewport (make-viewport 0 0 window-width window-height
+                                          #:clear-color black))))
+  (intro game))
 
 (boot-kernel (make <kernel>
                #:window-config (make <window-config>
-- 
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