Orkuncakilkaya
19fcf60599
ludic migrate state packages <every example program> packages/ludic.lab/example/plate.ludic 1804 vars into 126 states, 64 into lets; 23498 edits in 460 files Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
35 lines
1.7 KiB
Text
35 lines
1.7 KiB
Text
# shots.ludic - a scene names its cameras; the loop takes them in order
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function lab_shots_reset(lab_st: mut LabState) -> void {
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lab_st.lb_shot_names = new []string
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lab_st.lb_shot_pose = new []float
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}
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# a camera at (x, y, z) looking along yaw / pitch, both in DEGREES (cam_set's units)
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export function lab_shot(lab_st: mut LabState, name: string, x: float, y: float, z: float, yaw_deg: float, pitch_deg: float) -> void {
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push(lab_st.lb_shot_names, name)
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push(lab_st.lb_shot_pose, x)
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push(lab_st.lb_shot_pose, y)
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push(lab_st.lb_shot_pose, z)
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push(lab_st.lb_shot_pose, yaw_deg)
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push(lab_st.lb_shot_pose, pitch_deg)
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}
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# a camera `dist` metres from the point (tx, ty, tz), from bearing `from_deg` (0 = from +z),
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# `up_deg` above the horizontal, looking at the point
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export function lab_shot_at(lab_st: mut LabState, name: string, tx: float, ty: float, tz: float, dist: float, from_deg: float, up_deg: float) -> void {
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let b = Math.deg_to_rad(from_deg)
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let e = Math.deg_to_rad(up_deg)
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let hd = dist * Math.cos(e)
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let cx = tx + Math.sin(b) * hd
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let cz = tz + Math.cos(b) * hd
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let cy = ty + dist * Math.sin(e)
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let yaw = Math.atan2(cx - tx, cz - tz) * (180.0 / PI)
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lab_shot(lab_st, name, cx, cy, cz, yaw, -up_deg)
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}
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export function lab_shot_count(lab_st: LabState) -> int {
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if lab_st.lb_shot_names == null { return 0 }
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return len(lab_st.lb_shot_names)
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}
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function lab_shot_apply(lab_st: LabState, render3d_st: mut Render3dState, i: int) -> void {
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if i < 0 or i >= lab_shot_count(lab_st) { return }
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let o = i * 5
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cam_set(render3d_st, lab_st.lb_shot_pose[o], lab_st.lb_shot_pose[o + 1], lab_st.lb_shot_pose[o + 2], lab_st.lb_shot_pose[o + 3], lab_st.lb_shot_pose[o + 4])
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}
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