87 lines
2.6 KiB
Factor
87 lines
2.6 KiB
Factor
USING: alien.c-types alien.data arrays colors.constants grouping
|
|
kernel locals math math.vectors namespaces opengl opengl.demo-support
|
|
opengl.gl opengl.glu sequences sequences.generalizations shuffle ;
|
|
IN: processing.shapes
|
|
|
|
SYMBOL: fill-color
|
|
SYMBOL: stroke-color
|
|
|
|
COLOR: black stroke-color set-global
|
|
COLOR: white fill-color set-global
|
|
|
|
: fill-mode ( -- )
|
|
GL_FRONT_AND_BACK GL_FILL glPolygonMode
|
|
fill-color get gl-color ;
|
|
|
|
: stroke-mode ( -- )
|
|
GL_FRONT_AND_BACK GL_LINE glPolygonMode
|
|
stroke-color get gl-color ;
|
|
|
|
: gl-vertex-2d ( vertex -- ) first2 glVertex2d ;
|
|
|
|
: gl-vertices-2d ( vertices -- ) [ gl-vertex-2d ] each ;
|
|
|
|
: draw-point* ( x y -- ) stroke-mode GL_POINTS [ glVertex2d ] do-state ;
|
|
: draw-point ( point -- ) stroke-mode GL_POINTS [ gl-vertex-2d ] do-state ;
|
|
: draw-points ( points -- ) stroke-mode GL_POINTS [ gl-vertices-2d ] do-state ;
|
|
|
|
: draw-line** ( x y x y -- )
|
|
stroke-mode GL_LINES [ glVertex2d glVertex2d ] do-state ;
|
|
|
|
: draw-line* ( a b -- ) stroke-mode GL_LINES [ [ gl-vertex-2d ] bi@ ] do-state ;
|
|
|
|
: draw-lines ( seq -- ) stroke-mode GL_LINES [ gl-vertices-2d ] do-state ;
|
|
|
|
: draw-line ( seq -- ) draw-lines ;
|
|
|
|
: line-strip ( seq -- ) stroke-mode GL_LINE_STRIP [ gl-vertices-2d ] do-state ;
|
|
|
|
: draw-triangles ( seq -- )
|
|
[ fill-mode GL_TRIANGLES [ gl-vertices-2d ] do-state ]
|
|
[ stroke-mode GL_TRIANGLES [ gl-vertices-2d ] do-state ] bi ;
|
|
|
|
: draw-triangle ( seq -- ) draw-triangles ;
|
|
|
|
: draw-triangle* ( a b c -- ) 3array draw-triangles ;
|
|
|
|
: draw-triangle** ( x y x y x y -- ) 6 narray 2 group draw-triangles ;
|
|
|
|
: draw-polygon ( seq -- )
|
|
[ fill-mode GL_POLYGON [ gl-vertices-2d ] do-state ]
|
|
[ stroke-mode GL_POLYGON [ gl-vertices-2d ] do-state ] bi ;
|
|
|
|
:: draw-rectangle ( loc dim -- )
|
|
loc first2 :> ( x y )
|
|
dim first2 :> ( dx dy )
|
|
|
|
x y 2array
|
|
x dx + y 2array
|
|
x dx + y dy + 2array
|
|
x y dy + 2array
|
|
4array
|
|
draw-polygon ;
|
|
|
|
: draw-rectangle* ( x y width height -- ) [ 2array ] 2bi@ draw-rectangle ;
|
|
|
|
: gl-translate-2d ( pos -- ) first2 0 glTranslated ;
|
|
|
|
: gl-scale-2d ( xy -- ) first2 1 glScaled ;
|
|
|
|
: gl-ellipse ( center dim -- )
|
|
glPushMatrix
|
|
[ gl-translate-2d ] [ gl-scale-2d ] bi*
|
|
gluNewQuadric
|
|
dup 0 0.5 20 1 gluDisk
|
|
gluDeleteQuadric
|
|
glPopMatrix ;
|
|
|
|
: gl-get-line-width ( -- width )
|
|
GL_LINE_WIDTH 0 double <ref> tuck glGetDoublev double deref ;
|
|
|
|
: draw-ellipse ( center dim -- )
|
|
GL_FRONT_AND_BACK GL_FILL glPolygonMode
|
|
[ stroke-color get gl-color gl-ellipse ]
|
|
[ fill-color get gl-color gl-get-line-width 2 * dup 2array v- gl-ellipse ] 2bi ;
|
|
|
|
: draw-circle ( center size -- ) dup 2array draw-ellipse ;
|