trigonometry - Adjusting initial bullet angle to match user set distance(scope zero) (for math gods) -


so question pretty specific, means pretty hard find me on google or stackoverflow.

i want give users ability set distance/range on guns. have need make happen, don't have angle need add on direction angle @ bullet comes from. don't know equation/formula need this. not looking code-specific, idea of what/how this.

since not know formula use, started messing around numbers formula found:

(this formula applies actual sniper)   range = 1000 * actualtargetheight/targetheightinmils(on scope)    bulletdrop = bulletdropspeed*range^2/2*velocityofthebullet       milstoraisescope = 1000 * bulletdrop * rangetotarget

i replaced range whatever 0 user on. have feeling toss milstoraisescope trigonometry function. i'm not sure.

if confused i'm talking about, can find example of want in battlefield 4 or of arma games. snipers, can 0 in scope on whatever distance need won't have adjust bullet drop on scope.

sorry long question, want make sure understands! :)

mils corresponds (military) angular measurement unit of 1/1000 of radian, ready-to-use angle

second formula looks strange. height loss depends on time of flight:

dh = g*t^2/2 = g * (range / velocityofthebullet)^2 / 2

where g 9.81 m/sec^2


Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm ...
Read more

Add new key value to json node in java -

i have json file : { "id":1, "name":"abc", "addressdetails": { "city":"newyork" } } i wanted add 1 more key-value ("pincode" : "414141") node 'addressdetails'. i tried using : objectmapper mapper = new objectmapper(); jsonnode root = mapper.readtree(new file("d://test.json")); objectnode node = mapper.createobjectnode(); node.with("addressdetails").put("pincode", "414141"); but it's not getting added, there way can ? you can try you should modify file path objectmapper mapper = new objectmapper(); objectnode nodes = mapper.readvalue(new file("d:\\test.txt"), objectnode.class); nodes.with("addressdetails").put("pincode", "414141"); mapper.writer().writevalue(new file("d:\\test.txt"), nodes);
Read more