diff --git a/C++ProjectTemplate b/C++ProjectTemplate
index c1aa29d..af26d8d 100755
Binary files a/C++ProjectTemplate and b/C++ProjectTemplate differ
diff --git a/input b/input
new file mode 100644
index 0000000..d61e035
--- /dev/null
+++ b/input
@@ -0,0 +1,1031 @@
+$ cd /
+$ ls
+dir fchrtcbh
+dir hlnbrj
+dir jbt
+dir nnn
+57400 pfqcbp
+dir qsdv
+dir tdl
+dir tmcpgtz
+$ cd fchrtcbh
+$ ls
+dir fct
+dir fwttfps
+61765 nlr
+28736 pfqcbp.pfg
+224426 qcmtlbss
+145764 sgpmfdlt.tnd
+273765 wzmrclw.qbq
+$ cd fct
+$ ls
+dir ctzphlhl
+$ cd ctzphlhl
+$ ls
+25094 cfmw.rdv
+$ cd ..
+$ cd ..
+$ cd fwttfps
+$ ls
+69990 hdf.fjn
+146885 hqrzgvgn.wqp
+21206 wzmrclw.qbq
+$ cd ..
+$ cd ..
+$ cd hlnbrj
+$ ls
+dir mbwgsdcv
+$ cd mbwgsdcv
+$ ls
+156396 rdm.ttb
+$ cd ..
+$ cd ..
+$ cd jbt
+$ ls
+dir bbm
+dir gqbvgbt
+dir hzjzlwv
+dir jcstr
+dir llf
+$ cd bbm
+$ ls
+dir nsshzppb
+dir pfqcbp
+dir tdz
+dir tvqh
+$ cd nsshzppb
+$ ls
+5640 bvpnq.tbm
+241745 cmjshlw.qjh
+dir jlcqcb
+78459 nlfv.dgr
+dir pfqcbp
+245461 rjftj.gtj
+169808 tgvqrvq.mrw
+$ cd jlcqcb
+$ ls
+314748 fzsvgrcw
+32649 mmbfqp.lqc
+dir nzpvt
+dir pmncbz
+dir qqtlm
+321229 shtc.vtw
+10052 tdz
+320999 tdz.vfc
+$ cd nzpvt
+$ ls
+dir fct
+dir lbsng
+209182 nlr
+dir pfqcbp
+243321 srt.tqh
+3325 tdz.dbz
+332295 wzmrclw.qbq
+$ cd fct
+$ ls
+185072 drcmppfs
+dir fct
+92835 nlr
+$ cd fct
+$ ls
+230981 bpnvm
+$ cd ..
+$ cd ..
+$ cd lbsng
+$ ls
+dir mzsj
+116041 nzpvt.nll
+$ cd mzsj
+$ ls
+279834 vshfrzsg
+$ cd ..
+$ cd ..
+$ cd pfqcbp
+$ ls
+dir fct
+173141 mzb.lcd
+dir ssbv
+$ cd fct
+$ ls
+33372 tjznm
+$ cd ..
+$ cd ssbv
+$ ls
+273126 bccsm.rqq
+298840 cqzglqw.ppf
+dir fct
+dir pmqj
+126839 qdvm.wsc
+$ cd fct
+$ ls
+323437 bcqms.cbt
+91849 drcmppfs
+103408 jbmbrg.ggs
+261735 mnfrhs
+326197 wvrj.pzg
+$ cd ..
+$ cd pmqj
+$ ls
+34310 vhpqwp
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd pmncbz
+$ ls
+102403 rjhq.blj
+$ cd ..
+$ cd qqtlm
+$ ls
+dir ggjzcsfn
+dir nzpvt
+134921 wzmrclw.qbq
+$ cd ggjzcsfn
+$ ls
+dir nlfv
+$ cd nlfv
+$ ls
+219183 nbfqvdhb.pgr
+$ cd ..
+$ cd ..
+$ cd nzpvt
+$ ls
+141177 fct.bmj
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd pfqcbp
+$ ls
+312723 ngbm
+$ cd ..
+$ cd ..
+$ cd pfqcbp
+$ ls
+dir bvsj
+120921 cmzmmlqq.pqn
+308093 drcmppfs
+dir gvndh
+151290 hsjgzcf
+74851 tdz
+294395 wfp.lgp
+$ cd bvsj
+$ ls
+218258 qlnhddbw.pql
+dir sdjddn
+$ cd sdjddn
+$ ls
+dir tdl
+dir trpcd
+$ cd tdl
+$ ls
+271008 sqdggvm.hbh
+$ cd ..
+$ cd trpcd
+$ ls
+119088 wzmrclw.qbq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd gvndh
+$ ls
+dir bvg
+dir hsqmsqt
+125116 pfqcbp.fpb
+182960 wfp.lgp
+$ cd bvg
+$ ls
+183661 wzmrclw.qbq
+$ cd ..
+$ cd hsqmsqt
+$ ls
+dir bmvcv
+$ cd bmvcv
+$ ls
+85871 nlfv
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd tdz
+$ ls
+dir nzpvt
+$ cd nzpvt
+$ ls
+dir ttcwr
+$ cd ttcwr
+$ ls
+58678 wfp.lgp
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd tvqh
+$ ls
+111924 bccsm.rqq
+155539 drcmppfs
+dir hvqgrlb
+dir njqd
+67089 nlr
+dir nzpvt
+109311 nzpvt.bzz
+249415 nzpvt.ptr
+dir srq
+dir tdz
+dir vjdjl
+dir zmgzph
+$ cd hvqgrlb
+$ ls
+dir fct
+105914 jqtjglmh.glw
+94476 mst
+180432 nbb.fvv
+dir nhnp
+dir nlfv
+$ cd fct
+$ ls
+67110 fct
+310128 gdzswr.phr
+67231 mjbjvb.ngb
+285357 vtnlzs.slj
+dir zzl
+$ cd zzl
+$ ls
+118330 bccsm.rqq
+317825 cchprc
+$ cd ..
+$ cd ..
+$ cd nhnp
+$ ls
+302625 cwt
+319999 htrj.mgt
+$ cd ..
+$ cd nlfv
+$ ls
+dir tdz
+$ cd tdz
+$ ls
+127844 bccsm.rqq
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd njqd
+$ ls
+27880 jpscpmzn.thz
+dir ntrnlms
+dir nzpvt
+41048 pfqcbp.qzf
+dir vtvwjhm
+$ cd ntrnlms
+$ ls
+15229 sfr
+$ cd ..
+$ cd nzpvt
+$ ls
+dir fct
+dir ltzw
+dir sfwhmn
+dir tdz
+$ cd fct
+$ ls
+185362 fddlqjnn
+$ cd ..
+$ cd ltzw
+$ ls
+290023 wslq
+$ cd ..
+$ cd sfwhmn
+$ ls
+dir jmgzcqvd
+159166 mfdhjq
+15995 nddsdb.tcg
+173881 pqnh.nvt
+37665 qnbbmgtl.vcg
+275256 tdz.zrs
+$ cd jmgzcqvd
+$ ls
+dir dtr
+$ cd dtr
+$ ls
+dir tdz
+$ cd tdz
+$ ls
+12772 mzmpvqrt
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd tdz
+$ ls
+dir fgd
+dir pfqcbp
+dir tdz
+137421 vttcn.mgp
+308378 wzmrclw.qbq
+$ cd fgd
+$ ls
+75974 gdzrjn
+dir zfvwp
+$ cd zfvwp
+$ ls
+48696 nlr
+$ cd ..
+$ cd ..
+$ cd pfqcbp
+$ ls
+126220 wfp.lgp
+68328 zshscwhf.wvm
+$ cd ..
+$ cd tdz
+$ ls
+dir gwpps
+dir zdbsq
+$ cd gwpps
+$ ls
+193706 bccsm.rqq
+$ cd ..
+$ cd zdbsq
+$ ls
+90049 vqwwh
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd vtvwjhm
+$ ls
+291688 bccsm.rqq
+dir dnjgl
+17554 drcmppfs
+$ cd dnjgl
+$ ls
+dir lpdzhhf
+dir nlfv
+dir nmbrz
+168524 vbgwhhnq
+$ cd lpdzhhf
+$ ls
+317727 nlfv.wsf
+75497 nlr
+105712 wfp.lgp
+$ cd ..
+$ cd nlfv
+$ ls
+121726 fct.lsw
+$ cd ..
+$ cd nmbrz
+$ ls
+14788 bccsm.rqq
+dir cjv
+64895 cqndrd.rbb
+dir fnmsjd
+dir hgzgq
+dir hst
+33320 nlfv.wwb
+111373 nlr
+271844 nzpvt.llp
+dir pfqcbp
+$ cd cjv
+$ ls
+108233 wfp.lgp
+$ cd ..
+$ cd fnmsjd
+$ ls
+108902 drcmppfs
+dir fbnmdwmw
+dir jzq
+dir tdz
+$ cd fbnmdwmw
+$ ls
+183892 wzmrclw.qbq
+$ cd ..
+$ cd jzq
+$ ls
+dir nzpvt
+$ cd nzpvt
+$ ls
+34417 gjqc
+$ cd ..
+$ cd ..
+$ cd tdz
+$ ls
+dir cmnw
+$ cd cmnw
+$ ls
+224596 nzpvt
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd hgzgq
+$ ls
+260727 bbqfd.cnm
+dir nzpvt
+302916 rclhngqn.dvh
+dir rhqj
+dir tdz
+168589 wzmrclw.qbq
+dir zfgf
+$ cd nzpvt
+$ ls
+212040 nzpvt
+196163 pfr.hpn
+$ cd ..
+$ cd rhqj
+$ ls
+36358 frfpn.bwd
+$ cd ..
+$ cd tdz
+$ ls
+7924 pfqcbp
+$ cd ..
+$ cd zfgf
+$ ls
+190752 nwntvrf.rns
+$ cd ..
+$ cd ..
+$ cd hst
+$ ls
+327527 bccsm.rqq
+90170 nlr
+$ cd ..
+$ cd pfqcbp
+$ ls
+163268 fct.qtw
+1178 fct.shw
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd nzpvt
+$ ls
+256871 bccsm.rqq
+219823 pfqcbp
+dir swtrnt
+146203 tdwv
+150052 wfp.lgp
+123164 zqmq
+$ cd swtrnt
+$ ls
+dir fct
+$ cd fct
+$ ls
+7540 nzpvt.lbv
+133952 tdz.rqf
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd srq
+$ ls
+294836 tdz.rrc
+192802 wzmrclw.qbq
+$ cd ..
+$ cd tdz
+$ ls
+255394 bccsm.rqq
+99901 nlfv.vfj
+316469 pbzcjplt.fgf
+104809 tjjmtzdc.jcq
+$ cd ..
+$ cd vjdjl
+$ ls
+60934 fct.jts
+270669 mmj.mqp
+dir nlfv
+dir nzpvt
+70744 qqjmpvh.dzv
+dir szrvs
+dir wmbbn
+$ cd nlfv
+$ ls
+dir bnjtlh
+132341 drcmppfs
+dir gmvjtj
+dir gzdj
+dir hpvrj
+49932 sqvz
+dir tdz
+$ cd bnjtlh
+$ ls
+dir fct
+255578 mftscrq
+dir nlfv
+76061 nlfv.bqm
+$ cd fct
+$ ls
+269563 wfp.lgp
+$ cd ..
+$ cd nlfv
+$ ls
+198725 ghh
+$ cd ..
+$ cd ..
+$ cd gmvjtj
+$ ls
+18219 fbhj.pjw
+41025 mchtc
+$ cd ..
+$ cd gzdj
+$ ls
+113277 dnzl
+dir fzhwfr
+133044 lrlfq.ndr
+120088 qcrv.mrs
+dir wgvw
+$ cd fzhwfr
+$ ls
+300485 gbcc
+71468 nzpvt.ztg
+180837 wfp.lgp
+$ cd ..
+$ cd wgvw
+$ ls
+123989 drcmppfs
+2266 pfqcbp.ccd
+$ cd ..
+$ cd ..
+$ cd hpvrj
+$ ls
+270481 bccsm.rqq
+$ cd ..
+$ cd tdz
+$ ls
+289817 bnp.wfp
+$ cd ..
+$ cd ..
+$ cd nzpvt
+$ ls
+dir bnt
+dir dtsr
+dir rhqrs
+dir tdz
+42376 wfp.lgp
+$ cd bnt
+$ ls
+dir gjdqwnd
+112688 nzpvt.bgh
+15859 nzpvt.ftj
+219526 nzpvt.gnt
+dir rwr
+dir tfvgnz
+dir ztpflr
+$ cd gjdqwnd
+$ ls
+dir ghsbcb
+dir gnnnslbh
+dir nnnh
+$ cd ghsbcb
+$ ls
+330485 bqnn.wsv
+148644 qvnl.rcw
+$ cd ..
+$ cd gnnnslbh
+$ ls
+dir fct
+dir nnp
+dir nzpvt
+152038 rlqsp.vsj
+118099 srsjsm
+dir vdjzwgz
+300404 zcjfnthp
+$ cd fct
+$ ls
+249569 hmpwz.ldw
+$ cd ..
+$ cd nnp
+$ ls
+232389 nhfhwbv
+$ cd ..
+$ cd nzpvt
+$ ls
+328734 phdw
+$ cd ..
+$ cd vdjzwgz
+$ ls
+130149 ttjzr.pjw
+dir zslhwc
+$ cd zslhwc
+$ ls
+dir lmhbnvzc
+$ cd lmhbnvzc
+$ ls
+316145 pfqcbp.jmd
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd nnnh
+$ ls
+247235 wfp.lgp
+$ cd ..
+$ cd ..
+$ cd rwr
+$ ls
+117412 jqncsgtz.srj
+$ cd ..
+$ cd tfvgnz
+$ ls
+301735 drcmppfs
+$ cd ..
+$ cd ztpflr
+$ ls
+dir pfscczq
+$ cd pfscczq
+$ ls
+258369 mmwrjjg.snm
+208621 qrn.bws
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd dtsr
+$ ls
+226917 cdgn
+58590 gqmp.bjw
+220622 nlr
+97205 tdz.lmf
+$ cd ..
+$ cd rhqrs
+$ ls
+dir bhrb
+$ cd bhrb
+$ ls
+98744 nzpvt.sgl
+$ cd ..
+$ cd ..
+$ cd tdz
+$ ls
+253051 cgn.fwb
+41573 qrvqml.vsj
+$ cd ..
+$ cd ..
+$ cd szrvs
+$ ls
+195204 dhdrjswp
+299349 drcmppfs
+2890 rzrc.bnd
+$ cd ..
+$ cd wmbbn
+$ ls
+248063 nzpvt
+56979 zpztvv
+$ cd ..
+$ cd ..
+$ cd zmgzph
+$ ls
+181700 bccsm.rqq
+322580 fzf.pdg
+189013 gpcrqlc
+260640 rwt
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd gqbvgbt
+$ ls
+dir jlh
+dir rvdfpd
+$ cd jlh
+$ ls
+47327 bccsm.rqq
+dir mlwz
+$ cd mlwz
+$ ls
+252054 tlg.lfd
+$ cd ..
+$ cd ..
+$ cd rvdfpd
+$ ls
+102223 cdmd.rzl
+120439 lnr
+$ cd ..
+$ cd ..
+$ cd hzjzlwv
+$ ls
+6753 czzvcvgc.qrw
+132168 wzmrclw.qbq
+$ cd ..
+$ cd jcstr
+$ ls
+224805 cvnfppdv
+$ cd ..
+$ cd llf
+$ ls
+dir dzpzvjw
+dir gvq
+131774 nlfv.llj
+$ cd dzpzvjw
+$ ls
+284397 dfdtpgsz.cdw
+dir fct
+dir pfqcbp
+210819 qvbzr
+dir sztbm
+$ cd fct
+$ ls
+242208 nlfv.zmb
+183434 pfqcbp
+224189 vdfzrvm.jlf
+222688 wfp.lgp
+291920 wzmrclw.qbq
+$ cd ..
+$ cd pfqcbp
+$ ls
+dir pfqcbp
+$ cd pfqcbp
+$ ls
+60445 tdz
+$ cd ..
+$ cd ..
+$ cd sztbm
+$ ls
+165502 mcqlcmc.rbp
+$ cd ..
+$ cd ..
+$ cd gvq
+$ ls
+dir dwtj
+dir fnmvrslw
+dir tdz
+dir vndm
+$ cd dwtj
+$ ls
+dir qtrqhh
+$ cd qtrqhh
+$ ls
+115781 tdz.nzv
+123358 wfp.lgp
+$ cd ..
+$ cd ..
+$ cd fnmvrslw
+$ ls
+dir brzzr
+29456 fct.fqz
+257982 nlfv
+$ cd brzzr
+$ ls
+195396 mlsszsf
+309844 nlfv
+$ cd ..
+$ cd ..
+$ cd tdz
+$ ls
+dir stwrprz
+dir zmrm
+$ cd stwrprz
+$ ls
+143929 slfbtj.qtz
+$ cd ..
+$ cd zmrm
+$ ls
+128440 nlr
+$ cd ..
+$ cd ..
+$ cd vndm
+$ ls
+dir dnzlnmzc
+dir fct
+$ cd dnzlnmzc
+$ ls
+73389 nvdznjtw.fqp
+51123 rcrtl.fwc
+$ cd ..
+$ cd fct
+$ ls
+14933 drcmppfs
+324404 drm.fmg
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd nnn
+$ ls
+dir pfqcbp
+dir rlvfd
+$ cd pfqcbp
+$ ls
+285385 lspfqghn.ccl
+90876 nlr
+$ cd ..
+$ cd rlvfd
+$ ls
+198026 wpzg
+$ cd ..
+$ cd ..
+$ cd qsdv
+$ ls
+32915 fct.psc
+86919 qfzsfz
+$ cd ..
+$ cd tdl
+$ ls
+320007 tdbpggtw
+$ cd ..
+$ cd tmcpgtz
+$ ls
+dir brbn
+dir brt
+101599 hdtg.bbb
+dir jhz
+dir rbdbtd
+dir tdz
+dir trflnpmw
+dir wldfm
+$ cd brbn
+$ ls
+dir hfdlq
+145067 wfp.lgp
+$ cd hfdlq
+$ ls
+43395 htshjzd
+$ cd ..
+$ cd ..
+$ cd brt
+$ ls
+82871 drcmppfs
+dir fct
+dir qnghcq
+dir tgmrlh
+$ cd fct
+$ ls
+199814 wzmrclw.qbq
+$ cd ..
+$ cd qnghcq
+$ ls
+143210 mrqll
+162526 nlfv.bbs
+$ cd ..
+$ cd tgmrlh
+$ ls
+48165 bccsm.rqq
+318013 pfqcbp
+$ cd ..
+$ cd ..
+$ cd jhz
+$ ls
+dir cqqlhrgf
+244294 ftwmblf
+334112 gvm.lsw
+dir jjtjrsm
+dir nhjztw
+dir wdqmdszj
+238850 wzmrclw.qbq
+$ cd cqqlhrgf
+$ ls
+54323 fct.zrn
+dir gslvzq
+89225 nzpvt.jwn
+170612 vnszlrms.qmm
+124897 zcddc
+158922 zdzr
+$ cd gslvzq
+$ ls
+132083 nlfv
+$ cd ..
+$ cd ..
+$ cd jjtjrsm
+$ ls
+66475 vqlqwvd
+$ cd ..
+$ cd nhjztw
+$ ls
+128488 bccsm.rqq
+319667 nlfv.nql
+106856 pfqcbp
+$ cd ..
+$ cd wdqmdszj
+$ ls
+224155 zsntbsns.svg
+$ cd ..
+$ cd ..
+$ cd rbdbtd
+$ ls
+214776 pfqcbp.fwz
+$ cd ..
+$ cd tdz
+$ ls
+152287 gfmdcrt
+dir jsqd
+219555 jvstcp.ngl
+dir mmgjzmcc
+dir nlfv
+dir vpwmlq
+$ cd jsqd
+$ ls
+284781 bcsd.dll
+dir dttzdnpb
+217660 dvpj.qgq
+56055 jzslsrq.zsh
+dir nzpvt
+dir pfqcbp
+220497 tdz.mmv
+278405 zzhsgr.bqp
+$ cd dttzdnpb
+$ ls
+23222 pfqcbp.mpq
+50335 qdmcgbz.jpp
+$ cd ..
+$ cd nzpvt
+$ ls
+128962 gwzvqc.bpj
+$ cd ..
+$ cd pfqcbp
+$ ls
+260384 pfqcbp.nfp
+$ cd ..
+$ cd ..
+$ cd mmgjzmcc
+$ ls
+255325 wzmrclw.qbq
+$ cd ..
+$ cd nlfv
+$ ls
+dir cfdj
+275703 nlr
+dir wlzd
+$ cd cfdj
+$ ls
+244185 wfp.lgp
+$ cd ..
+$ cd wlzd
+$ ls
+dir vtpjz
+$ cd vtpjz
+$ ls
+140890 wfp.lgp
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd vpwmlq
+$ ls
+dir bmtrdpdl
+dir cqvdppcg
+212696 fct.pnc
+32622 fzvsv.hsr
+26043 hwmmr
+176780 wqd.hbm
+$ cd bmtrdpdl
+$ ls
+145895 pfqcbp.jtp
+220677 pllqlvn
+49356 wfp.lgp
+$ cd ..
+$ cd cqvdppcg
+$ ls
+276847 jgthh.ssc
+$ cd ..
+$ cd ..
+$ cd ..
+$ cd trflnpmw
+$ ls
+dir gfgn
+dir jrlqjsc
+dir nlfv
+dir phmdq
+dir qnvmpzv
+311867 tdz
+$ cd gfgn
+$ ls
+255377 bccsm.rqq
+317338 pwfq
+$ cd ..
+$ cd jrlqjsc
+$ ls
+98803 wzmrclw.qbq
+$ cd ..
+$ cd nlfv
+$ ls
+dir fqt
+208205 tdfgzdbb.szm
+$ cd fqt
+$ ls
+99816 jcm
+11010 nlfv.fsv
+215962 nlr
+$ cd ..
+$ cd ..
+$ cd phmdq
+$ ls
+118845 cmssp.sgc
+238930 mdhs.tqd
+dir nlfv
+277199 qnwb
+287223 qpqdrvlf
+$ cd nlfv
+$ ls
+253884 bccsm.rqq
+$ cd ..
+$ cd ..
+$ cd qnvmpzv
+$ ls
+290671 rlnd.tps
+$ cd ..
+$ cd ..
+$ cd wldfm
+$ ls
+76173 drcmppfs
+dir gbzhcvn
+dir hrw
+$ cd gbzhcvn
+$ ls
+18543 nlr
+$ cd ..
+$ cd hrw
+$ ls
+260983 wfp.lgp
diff --git a/main.cpp b/main.cpp
index 8ab7e53..e96ba81 100644
--- a/main.cpp
+++ b/main.cpp
@@ -3,87 +3,151 @@
 #include "olcutils.h"
 
 using namespace olc;
-
-class Example : public olc::PixelGameEngine
-{
-public:
-	Example()
-	{
-		sAppName = "Example";
-	}
-
-public:
-    bool RayVsRect(const vf2d ray_origin, const vf2d ray_dir, const olc::utils::geom2d::rect<float> target, vf2d&contact_point, vf2d&contact_normal, float&t_hit_near){
-
-        contact_normal = { 0, 0 };
-        contact_point = { 0, 0 };
-
-        vf2d t_near = {(target.pos.x - ray_origin.x) / ray_dir.x, (target.pos.y - ray_origin.y) / ray_dir.y};
-        vf2d t_far = {(target.pos.x + target.size.x - ray_origin.x) / ray_dir.x, (target.pos.y + target.size.y - ray_origin.y) / ray_dir.y};
-
-        if (t_near.x > t_far.x) {float b; b = t_near.x; t_near.x = t_far.x; t_far.x = b;};
-        if (t_near.y > t_far.y) {float b; b = t_near.y; t_near.y = t_far.y; t_far.y = b;};
-
-        if (t_near.x > t_far.y || t_near.y > t_far.x) return false;
-
-        t_hit_near = fmax(t_near.x, t_near.y);
-        float t_hit_far = fmin(t_far.x, t_far.y);
-
-        if (t_hit_far < 0) return false;
-
-        contact_point.x = ray_origin.x + t_hit_near * ray_dir.x; 
-        contact_point.y = ray_origin.y + t_hit_near * ray_dir.y;
-
-        if (t_near.x > t_near.y)
-            if ( 1.0f / ray_dir.x < 0)
-                contact_normal = { 1, 0 };
-            else
-                contact_normal = { -1, 0};
-        else 
-        if ( t_near.x < t_near.y)
-            if ( 1.0f / ray_dir.y < 0)
-                contact_normal = { 0, 1 };
-            else
-                contact_normal = { 0, -1 };
-        
-        return true;
-
-        
-    }
-    vf2d originPoint={16,16};
-	bool OnUserCreate() override
-	{
-		// Called once at the start, so create things here
-		return true;
-	}
-
-	bool OnUserUpdate(float fElapsedTime) override
-	{
-        vf2d velocity={(GetKey(D).bHeld-GetKey(A).bHeld)*20*fElapsedTime,(GetKey(S).bHeld-GetKey(W).bHeld)*20*fElapsedTime};
-        vf2d contact_point;
-        vf2d contact_normal;
-        float t_hit_near;
-
-		Clear(Pixel(64,64,255));
-        if (!olc::utils::geom2d::overlaps(olc::utils::geom2d::circle<float>{originPoint+velocity,5},olc::utils::geom2d::rect<float>{{32,32},{64,32}})) {
-            originPoint+=velocity;
-            DrawCircle(originPoint,5);
-        } else {
-            DrawCircle(originPoint,5,RED);
-        }
-        DrawLine(originPoint,GetMousePos());
-
-        DrawRect({32,32},{64,32},RayVsRect(originPoint, GetMousePos()-originPoint, olc::utils::geom2d::rect<float>{{32,32},{64,32}},contact_point,contact_normal,t_hit_near)&&t_hit_near<1?YELLOW:WHITE);
-		return true;
-	}
+std::ifstream file("testinput");
+std::map<std::string,int> filedata;
+std::string pwd;
+std::string tempstr;
+
+class File{
+    public:
+    std::map<std::string,File> files;
+    int size;
 };
 
+int DisplayContents(File&f,std::string path,int filter,int*filtersum){
+    std::cout<<" Contents of "<<path<<"(Size "<<f.size<<"): "<<std::endl;
+    int sum=0;
+    for (std::map<std::string,File>::iterator it=f.files.begin();it!=f.files.end();it++){
+        int amt=DisplayContents(it->second,(path=="/")?path+it->first:path+"/"+it->first,filter,filtersum);
+        sum+=amt;
+    }
+    if (sum<=filter){
+        *filtersum+=sum;
+    }
+    std::cout<<"  Size of "<<path<<": "<<sum<<std::endl;
+    return sum+f.size;
+}
 
 int main()
 {
-	Example demo;
-	if (demo.Construct(128, 120, 8, 8))
-		demo.Start();
+    File rootFile{{},0};
+    while (file.good()||tempstr.length()>0){
+        std::string line;
+        if (tempstr.length()!=0){
+            line=tempstr;
+            tempstr="";
+        } else {
+            std::getline(file,line);
+        }
+        //std::cout<<line<<std::endl;
+        if (line[0]=='$'){
+            //Command.
+            std::string command=line.substr(line.find_first_of(' ')+1,2);
+            std::string arg=line.substr(line.find_last_of(' ')+1,std::string::npos);
+            std::cout<<"Command "<<command<<" w/arg "<<arg<<std::endl;
+            if (command=="cd"){
+                if (arg==".."){
+                    pwd=pwd.substr(0,pwd.find_last_of('/'));
+                } else
+                if (arg=="/"){
+                    pwd="/";
+                } else {
+                    if (pwd=="/"){
+                        pwd+=arg;
+                    } else {
+                        pwd+="/"+arg;
+                    }
+                }
+                std::cout<<"New directory is "<<pwd<<std::endl;
+            } else {
+                //It's ls.
+                while (file.good()) {
+                    std::getline(file,line);
+                    if (line[0]=='$'){
+                        tempstr=line;
+                        break; //It's now a command again.
+                    }
+                    std::string data1=line.substr(0,line.find_first_of(' '));
+                    std::string filename=line.substr(line.find_first_of(' ')+1,std::string::npos);
+                    std::cout<<"ls part 1: "<<data1<<"// Filename:"<<filename<<std::endl;
+                    if (data1=="dir"){
+                        std::string navigator;
+                        if (pwd=="/") {
+                            navigator=pwd+filename;
+                        } else {
+                            navigator=pwd+"/"+filename;
+                        }
+                        std::cout<<"  Navigator starts at "<<navigator<<std::endl;
+                        File*filer=&rootFile;
+                        while(navigator!=filename){
+                            std::string dir=navigator.substr(0,navigator.find_first_of('/'));
+                            if (dir.length()==0){
+                                navigator=navigator.substr(navigator.find_first_of('/')+1,std::string::npos);
+                                continue;
+                            }
+                            if (filer->files.find(dir)==filer->files.end()){
+                                //Does not exist. Create.
+                                filer->files[dir]=File();
+                                std::cout<<"Created "<<dir<<". Size: "<<filer->files.size()<<std::endl;
+                                filer=&filer->files[dir];
+                            }else{
+                                filer=&filer->files[dir];
+                            }
+                            navigator=navigator.substr(navigator.find_first_of('/')+1,std::string::npos);
+                            std::cout<<"  Navigator is now at "<<navigator<<std::endl;
+                        }
+                        //Create this directory too.
+                        if (filer->files.find(navigator)==filer->files.end()){
+                            //Does not exist. Create.
+                            filer->files[navigator]=File();
+                            std::cout<<"Created "<<navigator<<". Size: "<<filer->files.size()<<std::endl;
+                            filer=&filer->files[navigator];
+                        }else{
+                            filer=&filer->files[navigator];
+                        }
+                    } else
+                    if (data1.length()>0&&data1!="dir"){
+                        int size=std::atoi(line.substr(0,line.find_first_of(' ')).c_str());
+                        std::string filename=line.substr(line.find_first_of(' ')+1,std::string::npos);
+                        File*filer=&rootFile;
+                        std::string navigator;
+                        if (pwd=="/") {
+                            navigator=pwd+filename;
+                        } else {
+                            navigator=pwd+"/"+filename;
+                        }
+                        std::cout<<"  Navigator starts at "<<navigator<<std::endl;
+                        while(navigator!=filename){
+                            std::string dir=navigator.substr(0,navigator.find_first_of('/'));
+                            if (dir.length()==0){
+                                navigator=navigator.substr(navigator.find_first_of('/')+1,std::string::npos);
+                                continue;
+                            }
+                            if (filer->files.find(dir)==filer->files.end()){
+                                //Does not exist. Create.
+                                filer->files[dir]=File();
+                                std::cout<<"Created "<<dir<<". Size: "<<filer->files.size()<<std::endl;
+                                filer=&filer->files[dir];
+                            }else{
+                                filer=&filer->files[dir];
+                            }
+                            navigator=navigator.substr(navigator.find_first_of('/')+1,std::string::npos);
+                            std::cout<<"  Navigator is now at "<<navigator<<std::endl;
+                        }
+                        //This file gets its size set.
+                        filer->files[navigator]=File();
+                        std::cout<<"Created "<<navigator<<". Size: "<<filer->files.size()<<std::endl;
+                        filer->files[navigator].size=size;
+                    }
+                }
+                std::cout<<"end ls"<<std::endl;
+            }
+        }
+        std::cout<<line<<std::endl;
+    }
+    int sum=0;
+    DisplayContents(rootFile,"/",100000,&sum);
+    std::cout<<"Sum: "<<sum<<std::endl;
 
 	return 0;
 }
diff --git a/testinput b/testinput
new file mode 100644
index 0000000..bcbb513
--- /dev/null
+++ b/testinput
@@ -0,0 +1,23 @@
+$ cd /
+$ ls
+dir a
+14848514 b.txt
+8504156 c.dat
+dir d
+$ cd a
+$ ls
+dir e
+29116 f
+2557 g
+62596 h.lst
+$ cd e
+$ ls
+584 i
+$ cd ..
+$ cd ..
+$ cd d
+$ ls
+4060174 j
+8033020 d.log
+5626152 d.ext
+7214296 k
\ No newline at end of file