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https://github.com/open-goal/jak-project
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water111
67 lines
2.5 KiB
Common Lisp
67 lines
2.5 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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(bundles "ENGINE.CGO" "GAME.CGO")
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(require "engine/camera/cam-interface-h.gc")
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(require "engine/math/quaternion.gc")
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(require "kernel/gstate.gc")
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(require "engine/gfx/math-camera-h.gc")
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(require "engine/entity/entity-h.gc")
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(require "engine/math/transformq-h.gc")
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;; DECOMP BEGINS
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(defun position-in-front-of-camera! ((out vector) (forward-distance float) (up-distance float))
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"Place out at forward-distance along the camera's
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forward axis and up-distance along its up axis, measured from the current camera translation."
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(vector-float*! out (-> *math-camera* inv-camera-rot vector 2) forward-distance)
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(vector+float*! out out (-> *math-camera* inv-camera-rot vector 1) up-distance)
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(vector+! out out (-> *math-camera* trans))
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out)
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(defun matrix-local->world ((smooth? symbol) (unused-mode symbol))
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"Return the camera local-to-world rotation. smooth? selects the
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smoothed inverse-camera matrix; the second argument is retained for the shared interface but is
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unused."
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(if smooth?
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(-> *math-camera* inv-camera-rot-smooth)
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(-> *math-camera* inv-camera-rot)))
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(defun matrix-world->local ()
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"Return the current world-to-camera rotation matrix."
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(-> *math-camera* camera-rot))
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(define-perm *camera-dummy-vector* vector (vector-reset! (new 'global 'vector)))
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(defun camera-pos ()
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"Return the active camera position. Prefer the combiner output while a
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camera transition is active, otherwise use the renderer camera, with a zero-vector fallback
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before camera initialization."
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(cond
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(*camera-combiner*
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(-> *camera-combiner* trans))
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(*math-camera*
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(-> *math-camera* trans))
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(else
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*camera-dummy-vector*)))
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(defun math-camera-pos ()
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"Return the renderer's current camera translation."
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(-> *math-camera* trans))
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(defun camera-angle ()
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"Return the camera's horizontal heading from the X and Z components of
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the world-to-camera right axis."
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(let ((right-x (-> *math-camera* camera-rot vector 0 x))
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(right-z (-> *math-camera* camera-rot vector 0 z)))
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(atan right-z right-x)))
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(defbehavior camera-teleport-to-entity process ((start-entity entity-actor))
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"Teleport the camera to the entity position."
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(let ((teleport-transform (new 'stack 'transformq)))
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(vector-copy! (-> teleport-transform trans) (-> start-entity extra trans))
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(quaternion-copy! (-> teleport-transform quat) (-> start-entity quat))
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(vector-identity! (-> teleport-transform scale))
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(send-event *camera* 'teleport-to-transformq teleport-transform))
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0
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(none))
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