code done demoing for video

BBB_frontend/main.js

@@ -105,6 +105,7 @@ async function submit(clickEvent){
             return {path:google.maps.geometry.encoding.decodePath(v.poly_line), color:v.color}
         })
         .then(o=>{
+            //console.log(`"${o.path}"`);
             let line = new google.maps.Polyline({
                 path:o.path,
                 strokeColor: o.color,

Cargo.lock

@@ -92,6 +92,15 @@ version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "080e9890a082662b09c1ad45f567faeeb47f22b5fb23895fbe1e651e718e25ca"
 
+[[package]]
+name = "approx"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "arrayref"
 version = "0.3.7"
@@ -494,6 +503,7 @@ dependencies = [
  "anyhow",
  "async-std",
  "chrono",
+ "geo-types",
  "reqwest",
  "serde",
  "serde_json",
@@ -920,6 +930,17 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "geo-types"
+version = "0.7.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "567495020b114f1ce9bed679b29975aa0bfae06ac22beacd5cfde5dabe7b05d6"
+dependencies = [
+ "approx",
+ "num-traits",
+ "serde",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.16"
@@ -1247,6 +1268,12 @@ version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
+[[package]]
+name = "libm"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.3.8"
@@ -1326,6 +1353,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
 dependencies = [
  "autocfg",
+ "libm",
 ]
 
 [[package]]

Cargo.toml

@@ -9,6 +9,7 @@ edition = "2021"
 anyhow = "1.0.79"
 async-std = { version = "1.12.0", features = ["tokio1", "attributes"] }
 chrono = "0.4.34"
+geo-types = "0.7.12"
 reqwest = "0.11.24"
 #sea-orm = "0.12.14"
 serde = { version = "1.0.196", features = ["derive"] }

README.md

@@ -8,7 +8,7 @@ to run you need a file called GOOGLE_API_KEY in the dir the app is run in which
 
 ## TODO:
 
-- test with BC buses
+- show lines for broome county buses
 - Make buttons change color to indicate toggle
 - Prevent buses from going backwards
 - make time estimate accurate (beyond hack divide by 3)
@@ -16,11 +16,12 @@ to run you need a file called GOOGLE_API_KEY in the dir the app is run in which
 - Trim poly lines down to the bit between bus stops
 - Fix the UI so console and alert aren't needed
 - refactor to work within docker and setup within docker-compose 
-- make route checking more advanced with better walking heuristic
+- make route checking more advanced with better walking heuristic (ideally taking the river into account)
 - make route checking more advanced by allowing multiple factors with multiple weights including
     - walking time (don't remove it)
     - bus travel time
-    - layover time
+    - layover time (both waiting for the initial bus and any intermediary buses)
     - ultimate arrival time
+- make route checking allow for specifying a future time
 - use a DB via SeaORM to avoid spaming APIs
 - use info in db to try and predict bus schedules in future

src/main.rs

@@ -4,6 +4,7 @@ extern crate reqwest;
 extern crate tide;
 extern crate anyhow;
 extern crate chrono;
+extern crate geo_types;
 //extern crate sea_orm;
 
 mod state;

src/route.rs

@@ -83,7 +83,7 @@ pub async fn broome_county_routes_get()->anyhow::Result<Vec<Route>>{
         let poly_line = crate::stop::poly_encode_stops(stops.clone());
         Route{
             id:route.id,
-            color:route.color,
+            color:"#".to_owned()+&route.color,
             name:route.name,
             poly_line,
             short_name: route.short_name,

src/stop.rs

@@ -68,39 +68,56 @@ pub async fn bc_stops_get()->anyhow::Result<Vec<Stop>>{
     let stops:Vec<BCStop> = serde_json::from_str(body.as_str())?;
     Ok(stops.into_iter().map(Stop::from).collect())
 }
-pub fn poly_encode_stops<I:IntoIterator<Item=Stop>>(stops:I)->String{
+pub fn poly_encode_stops(stops:Vec<Stop>)->String{
+    println!("{:?}",stops);
     stops.into_iter()
         .map(|stop|{
-            enc_float(stop.lat)
+            "".to_owned()//enc_float(stop.lat) + &enc_float(stop.lon)
         })
         .reduce(|s1,s2|s1+&s2).unwrap_or("".into())
 }
 fn enc_float(num:f64)->String{ 
-    let mut working:i32 = (num*1e5).round() as i32;
-    //hopethis does what's needed
-    working<<=1;
-    if num < 0.0 {
-        working = !working;
-    }
-    let mut bits:[bool;30] = [false;30];
-    for i in 0..30{
-        bits[i] = working % 2 == 1;
-        working >>=1;
-    }
-    bits.chunks(5).rev()
-        .map(|bools|{
-            let mut accu:u8 = 0;
-            for i in 0..5{
-                accu += if bools[4-i]{
-                    1
-                } else {0};
-                accu <<=1;
-            }
-            accu |= 0x20;
-            accu +=63;
-            char::from(accu)
-        }).collect::<String>()
 
+    let working:i32 = invoke_e5(num);
+    let working = two_comp(working,num);
+    let working = lshf(working);
+    let working = if_negative_invert(working,num);
+    let chunks = chunks(working);
+    chunks.iter().map(|v| char::from_u32(*v as u32).unwrap()).collect()
+}
+
+fn invoke_e5(n:f64)->i32{
+    (n*1e5).round() as i32
+}
+
+fn two_comp(n:i32, orig:f64)->i32{
+    if orig < 0.0{
+        n^-1 + 1
+    }
+    else {
+        n
+    }
+}
+
+fn lshf(n:i32)->i32{
+    n << 1
+}
+fn if_negative_invert(n:i32, orig:f64)->i32{
+    if orig < 0.0{
+        n ^ -1
+    }
+    else {
+        n
+    }
+}
+fn chunks(n:i32)->[u8;6]{
+    let mut chunks:[u8;6] = [0;6];
+    for i in 0..6{
+        chunks[i] = (n >> (5*i) ) as u8 & 0x1f;
+        if i != 5 {chunks[i] |= 0x20;}
+        chunks[i] += 63;
+    }
+    chunks
 }
 
 #[derive(serde::Serialize)]