74 lines
1.5 KiB
Scheme
74 lines
1.5 KiB
Scheme
(module (bd grid) ()
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(import scheme
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(chicken base)
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(chicken module)
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raylib
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(imugi core)
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(imugi drawing)
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(imugi math)
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(srfi 1)
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(srfi 99))
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(export grid)
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(define (grid len wid default)
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(define (iter i acc)
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(if (= len i)
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acc
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(iter
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(+ 1 i)
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(cons (make-list wid default) acc))))
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(iter 0 '()))
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(export gv)
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(define (gv grd x y)
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(list-ref (list-ref grd y) x))
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(export gv!)
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(define (gv! grd x y val)
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(set! (list-ref (list-ref grd y) x) val))
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(define (draw-grid-square offset width x y entity)
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(let ((square-pos (v+ offset
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(vec (* x width)
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(* y width)))))
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(push-render-object
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'screen
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0
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(lambda ()
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(draw-rectangle-2d
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square-pos
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width
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width
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(cond
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((eqv? entity 'player) (make-color 0 0 1 1))
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((eqv? entity 'foe) (make-color 1 0 0 1))
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(else (make-color 0 0 0 1)))
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(not (eqv? entity 'none))
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2)))))
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(export draw-grid)
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(define draw-grid
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(make-system
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'draw-grid
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10
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'entity
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'(<grid-view>)
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(lambda (_ grid-view)
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(let ((gd (grid-view-grid grid-view))
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(width (grid-view-width grid-view))
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(pos (grid-view-pos grid-view)))
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(do ((i 0 (+ 1 i)))
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((= i (length gd)) gd)
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(let ((row (list-ref gd i)))
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(do ((j 0 (+ 1 j)))
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((= j (length row)) row)
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(draw-grid-square pos width i j (list-ref row j)))))))))
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(export grid-view grid-view-grid)
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(define-record-type <grid-view>
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(grid-view start-pos gd width)
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grid-view?
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(start-pos grid-view-pos set-grid-view-pos!)
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(gd grid-view-grid set-grid-view-grid!)
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(width grid-view-width set-grid-view-width!))
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)
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