I was bothering doublec about this on irc yesterday. It is more a general
question, not something too specific. If I want to add opengl inits like
changing the background color and different types of shading and I only want
it to effect the newly opened window. Where should I put those inits? I
thought about putting opengl-init in the 'graft' definition, but it looks
like the opengl parameters effect the main window.
I could put it in draw-gadget, but draw-gadget gets update so it might be
slopppy to have some kind of sentinel-init-loaded? type of code. Is there
some other gadget method I could use to place this code?
IN: mechbot
USING: kernel gadgets opengl math arrays threads interpreter
prettyprint io namespaces canvas timers generic inference ;
TUPLE: mechbot-gadget loaded? mechbot ticks ;
: width 640 ; inline
: height 480 ; inline
C: mechbot-gadget ( mechbot -- gadget )
[ set-mechbot-gadget-mechbot ] keep
[ f swap set-mechbot-gadget-loaded? ] keep
[ 0 swap set-mechbot-gadget-ticks ] keep
[ delegate>gadget ] keep ;
! ==== Method Declarations ================================
M: mechbot-gadget graft* 120 50 add-timer ;
M: mechbot-gadget ungraft* dup delegate ungraft* remove-timer ;
M: mechbot-gadget tick relayout-1 ;
M: mechbot-gadget pref-dim* drop width height 2array ;
! ==== Method Declarations(end) ===========================
: game-tick ( gadget -- )
dup mechbot-gadget-ticks 1 + swap
set-mechbot-gadget-ticks ;
M: mechbot-gadget draw-gadget* ( gadget -- )
"** in draw-gadget=" print flush
[ game-tick ] keep
"** tick=" write mechbot-gadget-ticks pprint
nl flush
! where should the init go again?
glinit ;
: run ( -- )
<new-mechbot> <mechbot-gadget> "mechbot" open-window ;
: glinit ( -- )
"GL Init, loading opengl game properties..." print flush
! Enable Smooth Shading
GL_SMOOTH glShadeModel
! Black Background
0.0 0.0 0.0 0.0 glClearColor
! Depth Buffer Setup
1.0 glClearDepth
GL_NORMALIZE glEnable
GL_FRONT_AND_BACK GL_FILL glPolygonMode
GL_SMOOTH glShadeModel
! Enables Depth Testing
GL_DEPTH_TEST glEnable
! The Type Of Depth Testing To Do
GL_LEQUAL glDepthFunc
! Really Nice Perspective Calculations
GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint ;
--
Berlin Brown
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