claw-machine-js/dist/clawjs.umd.js

A physics based claw-machine simulation

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i={x:e.x,y:e.y},d=F({x:e.x+n,y:e.y+n},i,-e.angle),T=F({x:e.x+n,y:e.y+n+n},i,-e.angle),h=F({x:e.x,y:e.y+n+n+n},i,-e.angle),m=F({x:e.x-n,y:e.y+n},i,e.angle),C=F({x:e.x-n,y:e.y+n+n},i,e.angle),E=F({x:e.x,y:e.y+n+n+n},i,e.angle),Y={x:e.x,y:e.y-t},N=F({x:e.x+n+t,y:e.y+n-ve(t)},i,-e.angle),W=F({x:e.x+n+t,y:e.y+n+n+ve(t)},i,-e.angle),_=F({x:e.x,y:e.y+n+n+n+t},i,-e.angle),ue=F({x:e.x-n-t,y:e.y+n-ve(t)},i,e.angle),ie=F({x:e.x-n-t,y:e.y+n+n+ve(t)},i,e.angle),w=F({x:e.x,y:e.y+n+n+n+t},i,e.angle),ee={x:a-y-v,y:f},oe={x:a-y-v,y:s},se={x:a-y,y:f},J={x:a-y,y:s};return{innerLineStart:i,rightInnerLineMiddle1:d,rightInnerLineMiddle2:T,rightInnerLineEnd:h,leftInnerLineMiddle1:m,leftInnerLineMiddle2:C,leftInnerLineEnd:E,outerLineStart:Y,rightOuterLineMiddle1:N,rightOuterLineMiddle2:W,rightOuterLineEnd:_,leftOuterLineMiddle1:ue,leftOuterLineMiddle2:ie,leftOuterLineEnd:w,dividerLineLeftStart:ee,dividerLineLeftEnd:oe,dividerLineRightStart:se,dividerLineRightEnd:J}},mr=(e,n,t,a,s,y,v,f,i)=>e.map(d=>(d.dy+=n,d.x+=d.dx,d.y+=d.dy,cr(d,t,a,s,y),ur(d,i.innerLineStart,i.leftInnerLineMiddle1,i.leftInnerLineMiddle2,i.leftInnerLineEnd,f.returnOnContact,v),ir(d,i.innerLineStart,i.rightInnerLineMiddle1,i.rightInnerLineMiddle2,i.rightInnerLineEnd,f.returnOnContact,v),or(d,i.outerLineStart,i.rightOuterLineMiddle1,i.rightOuterLineMiddle2,i.rightOuterLineEnd),sr(d,i.outerLineStart,i.leftOuterLineMiddle1,i.leftOuterLineMiddle2,i.leftOuterLineEnd),fr(d,i.dividerLineLeftStart,i.dividerLineLeftEnd,i.dividerLineRightStart,i.dividerLineRightEnd),d.x>=i.dividerLineRightEnd.x&&d.y>=a-50&&(d.isInDropZone=!0),d)),hr=(e,n)=>e.filter(t=>t.y<=n).length>0,Rr=(e,n)=>{e.y<=e.targetY?e.y+=e.dy:(e.y-=e.dy,e.targetY=n,e.y<=n&&(e.y=n))},Er=(e,n)=>{e.x>e.targetX&&e.targetX>0?e.x-e.dx<e.targetX?e.x=e.targetX:e.x-=e.dx:e.x<e.targetX&&e.targetX<n&&(e.x+e.dx>e.targetX?e.x=e.targetX:e.x+=e.dx)},Tr=e=>{e.angle>e.targetAngle?e.angle-=e.dAngle:e.angle+=e.dAngle},_r=(e,n,t,a,s,y)=>{const 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J=O.useRef(null),K=O.useRef(null),V=O.useRef([]),Z=O.useRef({x:0,y:0}),c=O.useRef({x:C,y:E,angle:Y,targetY:E,targetX:C,targetAngle:Y,dx:N,dy:W,dAngle:_,returnOnContact:!1}),M=O.useRef(!0);O.useEffect(()=>{V.current&&(V.current=_r(e,ee,n,t,w,f),nr(V.current))},[e,w,n,t,f]),O.useEffect(()=>{c.current.dx&&(c.current.dx=N)},[N]),O.useEffect(()=>{c.current.dy&&(c.current.dy=W)},[W]),O.useEffect(()=>{c.current.dAngle&&(c.current.dAngle=_)},[_]);function H(){Rr(c.current,E)}function ge(){Er(c.current,n)}function le(){Tr(c.current)}O.useEffect(()=>{const D=J.current;if(!D)return;const S=D.getContext("2d");if(!S)return;const P=()=>{c.current.targetAngle=0,c.current.targetY=c.current.y},Q=setInterval(()=>{S.clearRect(0,0,n,t);const U=pr(c.current,v,m,n,t,f,d,i),Ee=mr(V.current,a,n,t,s,y,P,c.current,U),ce=Ee.filter($=>$.isInDropZone),Te=Ee.filter($=>!$.isInDropZone);ce.length>0&&oe(ce),dr(V.current),Te.forEach($=>{tr(S,$)}),er(S,d,t-i,U,T,h),V.current=Te,c.current.targetY!==c.current.y&&H(),c.current.targetX!==c.current.x&&ge(),c.current.angle!==c.current.targetAngle&&le(),we(m,S,U,ue,ie)},1e3/60);return()=>clearInterval(Q)},[Z.current,c.current,e,ee,n,t,f,d,m,v]);const xe=D=>{if(!M.current)return;const S=J.current;if(!S)return;const P=S.getBoundingClientRect();Z.current={x:D.clientX-P.left,y:D.clientY-P.top},Math.abs(c.current.x-Z.current.x)>20&&(c.current.targetX=Math.round(Z.current.x/2)*2)},fe=async D=>{await X(c.current.x+D,c.current.y,c.current.angle,!1)},pe=()=>{K.current!==null&&(clearInterval(K.current),K.current=null)},me=()=>{M.current&&(K.current=setInterval(()=>{fe(c.current.dx)},5))},he=()=>{M.current&&(K.current=setInterval(()=>{fe(-c.current.dx)},5))},X=(D,S,P,q=!1)=>new Promise(Q=>{M.current=!1,c.current.returnOnContact=q,c.current.targetX=Be(D,n),c.current.targetY=Be(S,t),c.current.targetAngle=P;const U=()=>{Math.abs(c.current.x-c.current.targetX)<=c.current.dx&&Math.abs(c.current.y-c.current.targetY)<=c.current.dy&&Math.abs(c.current.angle-c.current.targetAngle)<=c.current.dAngle?(M.current=!0,Q()):requestAnimationFrame(U)};requestAnimationFrame(U)}),Re=async D=>{M.current&&(await X(c.current.x,t-50,40,!0),await X(c.current.x,c.current.y,0),await X(c.current.x,E,0),hr(V.current,i)&&(await X(n-30,E,0),await X(n-30,E,40).then(()=>{setTimeout(()=>X(Math.round(n/4)*2,E,0),D||500)})))};return O.useImperativeHandle(se,()=>({moveClaw:X,moveClawRight:me,moveClawLeft:he,stopMoving:pe,moveClawDown:Re})),Fe.jsx("div",{children:Fe.jsx("canvas",{ref:J,width:n,height:t,style:{border:"1px solid black",width:"100%"},onMouseMove:xe,onMouseDown:()=>Re()})})}));G.ClawMachine=Cr,Object.defineProperty(G,Symbol.toStringTag,{value:"Module"})});