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7d69311552
* update scripts * decomp some of `fact-h`
52 lines
1.5 KiB
Common Lisp
52 lines
1.5 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: dynamics-h.gc
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;; name in dgo: dynamics-h
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;; dgos: GAME, ENGINE
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(deftype dynamics (basic)
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((name basic :offset-assert 4)
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(gravity-max float :offset-assert 8) ;; meters
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(gravity-length float :offset-assert 12) ;; meters
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(gravity vector :inline :offset-assert 16)
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(gravity-normal vector :inline :offset-assert 32)
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(walk-distance float :offset-assert 48) ;; meters
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(run-distance float :offset-assert 52) ;; meters
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)
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:method-count-assert 9
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:size-assert #x38
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:flag-assert #x900000038
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)
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(defun time-to-apex ((arg0 float) (arg1 float))
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(the int (/ arg0 (- (vel-tick arg1))))
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)
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(defun time-to-ground ((velocity float) (gravity float) (height float))
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"How long to fall from height?"
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(let ((height-checked 0.0)
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(ticks 0))
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;; loop in ticks until we reach the ground
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(while (< (- height) height-checked)
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(let ((velocity (- velocity (vel-tick gravity))))
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(+! height-checked (vel-tick velocity))
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)
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(+! ticks 1)
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)
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ticks
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)
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)
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(define *standard-dynamics*
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(new 'static 'dynamics
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:name 'standard
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:gravity-max GRAVITY_MAX
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:gravity-length GRAVITY_AMOUNT
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:gravity (new 'static 'vector :x 0.0 :y GRAVITY_AMOUNT :z 0.0 :w 1.0)
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:gravity-normal (new 'static 'vector :x 0.0 :y 1.0 :z 0.0 :w 1.0)
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:walk-distance (meters 2)
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:run-distance (meters 5)
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)
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)
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