But the whole point was that you could pull of these from scratch without checking any code (well outside what I had to do to get canvas working).
My expectation is that the next patch after 1.2 will be bundled with the free DLC. That is assuming that 1.2 resolves the PS Store issue and they don't need to do a 1.3 for that.
I'm quite sure the disappearing cars is much simpler fix than you'd think, since it only clearly happens whenever a player is not watching, so it's not like they're unable to figure out how to keep assets on screen.
<html>
<canvas id="canvas" width="1200" height="600" style="border:1px solid #d3d3d3;" />
<script>
var canvas=document.getElementById("canvas"),ctx=canvas.getContext("2d");var cl=canvas.getBoundingClientRect(),w=canvas.width,h=canvas.height,car={x:600,y:300,ax:0,ay:0,angle:0},cw=20,ch=30,m={x:600,y:300},s=1,mxs=5,Rad2Deg=180/Math.PI,Deg2Rad=Math.PI/180,colors={grey:"#555",black:"#000",green:"#0F0",yellow:"#FF0",white:"#FFF"};function drawBackGround(){ctx.fillStyle=colors.grey,ctx.fillRect(0,0,w,h)}function changeCarMovement(){let c=Math.sqrt(m.x**2+m.y**2);if(c>3){let t=m.x-car.x,a=m.y-car.y;car.ax+=t*s/c,car.ay+=a*s/c}let t=Math.sqrt(car.ax**2+car.ay**2)/mxs;t>1&&(car.ax/=t,car.ay/=t),car.x+=car.ax,car.y+=car.ay}function drawCar(){ctx.save(),ctx.translate(car.x,car.y),car.angle=Math.atan2(car.ay,car.ax),ctx.rotate(car.angle+90*Deg2Rad),ctx.beginPath(),ctx.fillStyle=colors.green,ctx.fillRect(-cw/2,-ch/2,cw,ch),ctx.fill(),ctx.strokeStyle=colors.white,ctx.lineWidth=1,ctx.strokeRect(-cw/2,-ch/2,cw,ch),ctx.lineWidth=2,ctx.strokeStyle=colors.black,ctx.strokeRect(1-cw/2,-ch/4,cw-2,2*ch/3),ctx.fillStyle=colors.yellow,ctx.fillRect(-cw/2,-ch/2,5,5),ctx.fillRect(cw/2-5,-ch/2,5,5),ctx.stroke(),ctx.restore()}canvas.addEventListener("mousemove",function(c){c.clientX&&(m.x=c.clientX-cl.left,m.y=c.clientY-cl.top),calcAngle()}),setInterval(function(){changeCarMovement(),drawBackGround(),drawCar()},10);
</script>
</html>
<html>
<canvas id="canvas" width="1200" height="600" style="border:1px solid #d3d3d3;" />
<script>
var canvas=document.getElementById("canvas"),g=canvas.getContext("2d");g.font="30px Verdana";var cl=canvas.getBoundingClientRect(),w=canvas.width,h=canvas.height,sr=90*Math.PI/180,sd={a:300,b:800};function create(t,a){let e=Object.assign({},t);return Object.keys(a).forEach(t=>{e[t]=a[t]}),e}function hyp(t,a){return Math.sqrt(t**2+a**2)}var c={gr:"#DDD",bl:"#000",g:"#0F0",b:"#00F",y:"#FF0"},m={x:600,y:300},car={x:0,y:0,ax:0,ay:0,r:0,w:20,h:30,s:.1,mxs:null,t:null},A=create(car,{x:600,y:300,mxs:5,t:0}),pC=[];function nPC(t,a){let e=360*Math.random(),n=Math.cos(e)*(sd.a+Math.random()*sd.b),c=Math.sin(e)*(sd.a+Math.random()*sd.b);this.pC.push(create(this.car,{x:t+n,y:a+c,mxs:3,t:1}))}function dB(){g.fillStyle=c.gr,g.fillRect(0,0,w,h)}function mTD(t,a,e){let n=hyp(a-t.x,e-t.y);if(n>3){let c=a-t.x,l=e-t.y;t.ax+=c*t.s/n,t.ay+=l*t.s/n}let c=hyp(t.ax,t.ay)/t.mxs;c>1&&(t.ax/=c,t.ay/=c),t.x+=t.ax,t.y+=t.ay,drawCar(t)}function drawCar(t){g.save(),g.translate(t.x,t.y),t.r=Math.atan2(t.ay,t.ax),g.rotate(t.r+sr),g.beginPath(),g.fillStyle=t.t?c.b:c.g,g.fillRect(-t.w/2,-t.h/2,t.w,t.h),g.strokeStyle=c.bl,g.lineWidth=1,g.strokeRect(-t.w/2,-t.h/2,t.w,t.h),g.lineWidth=2,g.strokeStyle=c.bl,g.strokeRect(1-t.w/2,-t.h/4,t.w-2,2*t.h/3),g.fillStyle=c.y,g.fillRect(-t.w/2,-t.h/2,t.w/4,t.w/4),g.fillRect(t.w/2-5,-t.h/2,t.w/4,t.w/4),g.stroke(),g.restore()}nPC(A.x,A.y),nPC(A.x,A.y),nPC(A.x,A.y),canvas.addEventListener("mousemove",function(t){t.clientX&&(m.x=t.clientX-cl.left,m.y=t.clientY-cl.top)}),setInterval(function(){dB(),mTD(A,m.x,m.y);for(let t=0;t<this.pC.length;t++)mTD(this.pC[t],A.x,A.y)},10);
</script>
</html>
Only that over the years I have seen modders do amazing things yet the original devs did not even acknowledge. A recent example is how a modder figured out that GTA V online takes 5 minutes to load because it does an item check which is largely redundant or could be done more efficiently. He was able to knock off loading times by 60 to 70%.
Did you use the mod?, I cannot because I use Stadia... but looking at your video and their devlopment log, it looks like they "just" copied (i.e using assets already existing in the game) Kerry quest police car spawn (spawning at different places)... In the video that you posted, they force themselves to stay within a radius of the car-there is a fragment, that seems that they are moving in circle-; they have even a video in Nexus where driving in straight line cars stop chasing if they loose direct LOS from your car (as in Kerry quest). If you want a complete "chase" system, this is not enough by several orders of magnitude.
