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Remove objects from grid when they die.

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This commit is contained in:
David Thompson 2024-05-24 13:00:14 -04:00
parent feb5b8f3d6
commit e580454a97
1 changed files with 7 additions and 2 deletions
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9
modules/game/actors.scm
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@ -382,6 +382,7 @@
(('describe) `(bomb ,position ,($ exploding?)))
(('collide other offset grid-info) #f)))
;; TODO: Combine with ghost gem.
(define (^gem bcom x y)
(define position (vector x y 1))
(define picked-up? (spawn ^cell))
@ -394,7 +395,7 @@
(('exit obj grid-info) #f)
(('wire-state grid-info from from-x from-y) #f)
(('update-wire-state grid-info neighbor-grid) #f)
(('alive?) (pk 'gem-alive? (not ($ picked-up?))))
(('alive?) (not ($ picked-up?)))
(('describe) `(gem ,position))
(('collide other offset grid-info)
(when (eq? ($ other 'type) 'player)
@ -883,7 +884,11 @@
;; Cull dead objects.
(if ($ obj 'alive?)
(cons obj (lp rest))
(lp rest)))))))
(match ($ obj 'position)
(#(x y z)
(let ((cell (grid-ref grid x y)))
($ cell (delq obj ($ cell))))
(lp rest)))))))))
(define (tick-object obj)
(let ((prev-pos ($ obj 'position)))
($ obj 'tick grid-info)