45 lines
1.4 KiB
Factor
45 lines
1.4 KiB
Factor
! Copyright (C) 2006 Alex Chapman
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! See http://factorcode.org/license.txt for BSD license.
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USING: kernel sequences arrays math namespaces opengl gadgets tetris tetris-board tetris-piece tetromino ;
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IN: tetris-gl
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#! OpenGL rendering for tetris
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: draw-block ( block -- )
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dup { 1 1 } v+ gl-fill-rect ;
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: draw-piece-blocks ( piece -- )
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piece-blocks [ draw-block ] each ;
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: draw-piece ( piece -- )
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dup tetromino-colour gl-color draw-piece-blocks ;
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: draw-next-piece ( piece -- )
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dup tetromino-colour clone 0.1 3 pick set-nth gl-color draw-piece-blocks ;
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! TODO: move implementation specific stuff into tetris-board
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: (draw-row) ( y row x -- y )
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swap dupd nth [ gl-color over 2array draw-block ] [ drop ] if* ;
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: draw-row ( y row -- )
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dup length [ (draw-row) ] each-with drop ;
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: draw-board ( board -- )
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board-rows dup length [ tuck swap nth draw-row ] each-with ;
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: scale-tetris ( width height tetris -- )
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[ board-width swap ] keep board-height / -rot / swap 1 glScalef ;
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: (draw-tetris) ( width height tetris -- )
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#! width and height are in pixels
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GL_MODELVIEW [
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[ scale-tetris ] keep
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GL_COLOR_BUFFER_BIT glClear
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dup tetris-board draw-board
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dup tetris-next-piece draw-next-piece
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tetris-current-piece draw-piece
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] do-matrix ;
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: draw-tetris ( width height tetris -- )
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origin get [ (draw-tetris) ] with-translation ;
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