import {camera,add,mul} from './math.mjs';

// One pose drives visibility, the world-space camera, and the top-view locator.
export const sensorPose=angle=>camera(angle??35,12,5.2);
export function sensorEdges(angle){
 const {eye,forward,right,up}=sensorPose(angle);
 const point=(x,y,z)=>add(eye,add(mul(right,x),add(mul(up,y),mul(forward,z))));
 const ring=(w,h,z)=>[[-w,-h],[w,-h],[w,h],[-w,h]].map(([x,y])=>point(x,y,z));
 const back=ring(.17,.12,-.25),front=ring(.17,.12,-.04),lens=ring(.08,.06,.03),view=ring(.28,.21,.55),edges=[];
 for(const r of [back,front,lens,view])for(let i=0;i<4;i++)edges.push([r[i],r[(i+1)%4]]);
 for(let i=0;i<4;i++){edges.push([back[i],front[i]],[front[i],lens[i]],[lens[i],view[i]]);}
 return edges;
}
export function sensorLocator(angle){
 const {eye}=sensorPose(angle),scale=32/5.2;
 return {x:50+eye[0]*scale,y:48+eye[2]*scale,rotation:Math.atan2(eye[0],-eye[2])*180/Math.PI};
}