Check null objects

[guile-irrlicht.git] / irrlicht / device.scm

diff --git a/irrlicht/device.scm b/irrlicht/device.scm
index b75d4d3f7b87d75e4bcf8ba3d967b1a9791d4232..04988d39602e24deb51ead3f2cce967fccbaa750 100644 (file)
--- a/irrlicht/device.scm
+++ b/irrlicht/device.scm
@@ -22,6 +22,7 @@
   #:use-module (oop goops)
   #:use-module (irrlicht base)
   #:use-module (irrlicht foreign)
+  #:use-module (irrlicht io)
   #:use-module (irrlicht irr)
   #:use-module (irrlicht gui)
   #:use-module (irrlicht scene)
@@ -30,7 +31,7 @@
 
 ;; IrrlichtDevice
 (define-class <irrlicht-device> (<reference-counted>)
-  (irr-class #:init-value "IrrlichtDevice" #:getter irr-class))
+  (irr-class #:init-value "IrrlichtDevice"))
 
 (define* (create-device #:key
                         (device-type 'software)
@@ -45,31 +46,51 @@
        "In procedure create-device: Wrong type argument (expecting <event-receiver>):"
        receiver))
 
-  (make <irrlicht-device>
-    #:irr-pointer
-    ((get-irrlicht-proc "createDevice")
-     device-type
-     window-size
-     bits
-     fullscreen
-     stencilbuffer
-     vsync
-     (irr-pointer receiver))))
+  (let* ((createDevice (get-irrlicht-proc "createDevice"))
+         (device-pointer (createDevice device-type window-size bits fullscreen stencilbuffer
+                                       vsync receiver)))
+    (cond ((null-pointer? device-pointer)
+           (error "In procedure create-device: Device cannot be created"))
+          (else
+           (make <irrlicht-device> #:irr-pointer device-pointer)))))
+
+(define-method (get-cursor-control (device <irrlicht-device>))
+  (let ((getCursorControl (get-irrlicht-proc "getCursorControl" device)))
+    (make <cursor-control>
+      #:irr-pointer (getCursorControl device))))
+
+(define-method (get-file-system (device <irrlicht-device>))
+  (let ((getFileSystem (get-irrlicht-proc "getFileSystem" device)))
+    (make <file-system>
+      #:irr-pointer (getFileSystem device))))
 
 (define-method (get-gui-environment (device <irrlicht-device>))
-  (make <gui-environment>
-    #:irr-pointer ((get-irrlicht-proc "getGUIEnvironment" device) (irr-pointer device))))
+  (let ((getGUIEnvironment (get-irrlicht-proc "getGUIEnvironment" device)))
+    (make <gui-environment>
+      #:irr-pointer (getGUIEnvironment device))))
 
 (define-method (get-scene-manager (device <irrlicht-device>))
   (make <scene-manager>
-    #:irr-pointer ((get-irrlicht-proc "getSceneManager" device) (irr-pointer device))))
+    #:irr-pointer ((get-irrlicht-proc "getSceneManager" device) device)))
 
 (define-method (get-video-driver (device <irrlicht-device>))
   (make <video-driver>
-    #:irr-pointer ((get-irrlicht-proc "getVideoDriver" device) (irr-pointer device))))
+    #:irr-pointer ((get-irrlicht-proc "getVideoDriver" device) device)))
+
+(define-method (is-window-active? (device <irrlicht-device>))
+  (let ((isWindowActive (get-irrlicht-proc "isWindowActive" device)))
+    (isWindowActive device)))
+
+(define-method (run (device <irrlicht-device>))
+  ((get-irrlicht-proc "run" device) device))
 
 (define-method (set-window-caption! (device <irrlicht-device>) text)
   ((get-irrlicht-proc "setWindowCaption" device)
-   (irr-pointer device) text))
+   device text))
+
+(define-method (yield-device (device <irrlicht-device>))
+  (let ((yield (get-irrlicht-proc "yield" device)))
+    (yield device)))
 
-(export create-device get-gui-environment get-scene-manager get-video-driver set-window-caption!)
+(export create-device get-cursor-control get-file-system get-gui-environment get-scene-manager
+        get-video-driver is-window-active? run set-window-caption! yield-device)