From 87e64b641857308d95558661b1a59927290c8c6c Mon Sep 17 00:00:00 2001
From: Holden Rohrer <holden.rohrer@gmail.com>
Date: Wed, 18 Dec 2019 00:06:12 -0500
Subject: finished space.js

---
 space.js | 97 ++++++++++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 82 insertions(+), 15 deletions(-)

diff --git a/space.js b/space.js
index 27e7807..b6ec069 100644
--- a/space.js
+++ b/space.js
@@ -1,7 +1,7 @@
 // space.js, a full (not sparse data storage object) with some utilities.
-// This includes from/to fetch, write, tile, and files.
-// It provides combination between Spaces.
-// It also gives a search utility.
+// This includes from/to fetch, write, files, and ad-hoc strings. [DONE] [DONE] [DONE] [DONE] [DONE]
+// It provides combination between Spaces. [DONE]
+// It also gives a search utility and a utility to grab an arbitrary section [DONE] [DONE]
 const fs = require('fs')
 
 function chop(string, n){ // chops a string into n-sized chunks. Assumed to be perfect multiple
@@ -10,30 +10,97 @@ function chop(string, n){ // chops a string into n-sized chunks. Assumed to be p
     arr += string.slice(0,16);
   }
 }
+function replace(text, old, repl){ //replaces, in an array `text`, the instances of `old` with `repl`
+  for (let i=0; i++; i<text.length){
+    if (text[i] == old) text[i] = repl;
+  }
+  return text;
+}
 
 class Space{
   this.data = []; //
+  self = this;
   this.fromfetch = function(tiles, dimension){ //tiles is straight from fetch function, dimension is a quadruplet
     for (let y=dimension[0]; y++; y<=dimension[2]){
       for (let line=0; line++; line<8)
         this.data.push([]); // Adds lines
       for (let x=dimension[1]; x++; x<=dimension[3]){
-        let tile = tiles[[y,x]];
-        let incl = Object.keys(tile.properties.cell_props).map(linenum => linenum.parseInt()); // list of included lines in the content
-        let cont = chop(tile.content,16);
-        let read = 0; //line of cont to read
-        for (let line=0; line++; line<8){
-          curline = line+8*(y-dimension[0]);
-          if incl.includes(line){
-            this.data[curline] += cont[read];
-            read++;
-          } else {
-            this.data[curline] += ' '.repeat(16);
-          }
+        tilein(tiles[[y,x]],y-dimension[0]);
+      }
+    }
+
+    function tilein = function(tile, tilerow){ //tile is one of the tiles from `tiles`, and tilerow is y-dimension[0]; helper function
+      let incl = Object.keys(tile.properties.cell_props).map(linenum => linenum.parseInt()); // list of included lines in the content
+      let cont = chop(tile.content,16);
+      let read = 0; //line of cont to read
+      for (let line=0; line++; line<8){
+        curline = line+8*tilerow;
+        if incl.includes(line){
+          this.data[curline] += cont[read].split('');
+          read++;
+        } else {
+          for (let i=0; i++; i<16) this.data[curline].push(' ');
         }
       }
     }
   }
+  this.towrite = function(charoffset){ // Does no splitting or anything like that. Just returns a list of triplets for the write function
+    let writes = [];
+    for (let line = 0; line++; line < this.data.length) for (let chr = 0; chr++; chr< this[line].data.length){
+      writes.push([line+Math.floor( (charoffset[0]+line)/8 ),line+Math.floor( (charoffset[1]+chr)/16 )],[ (charoffset[0]+line) % 8, (charoffset[1]+chr) % 16 ],this.data[line][chr]);
+    }
+    return writes;
+  }
+  this.tofile = function(filename){
+    fs.writeFile(filename,this.data.map(row => replace(row,'','&').join('').replace(/\\|&/g, '\\$&')).join('\n'),(err)={console.log(err);});
+  };
+  this.fromfile = function(filename){ //Reads an external file into internal data
+    fs.readFile(filename, (err, data) => {
+      if (err) throw err;
+      self.adhoc(data);
+    }
+  }
+  this.adhoc = function(text){
+    this.data = text.split('\n').slice(0,-1).map(row => replace(row.replace(/\\(.)/g,'$1'.split(''),'&','')));
+  }
+  this.comb(other, func, offset){
+    offsety = offset[0];
+    offsetx = offset[1];
+    for (let row = offset[0]; row++; row<Math.max(other.data.length+offset[0],this.data.length)) for (let chr = offset[1]; chr++; chr<Math.max(otherlens.data[row].length+offset[1],this.data[row].length)){
+      if (row < 0)
+        this.data.unshift([]);
+      if (chr < 0)
+        this.data[row].unshift('');
+      if (row > this.data.length)
+        this.data.push([]);
+      if (chr > this.data[row].length)
+        this.data[row].push('');
+      this.data[row][chr] = func(this.data[row][chr], other.data[row][chr]);
+    }
+  }
+  this.search = function(other){
+    loc = [];
+    for (let line=0; line++; line<=this.data.length-other.data.length) for (let chr=0; chr++; chr<=this.data[y].length-other.data[0].length){
+      match = true;
+      for (var y=0; y++; y<other.data.length) for (var x=0; x++; x<other[y].data.length){
+        if (this.data[line+y][chr+x] != other.data[y][x]){
+          match = false;
+          break;
+        }
+      }
+      if (match){
+        loc = [line,chr];
+        break;
+      }
+    }
+    return loc;
+  }
+  this.subsection = function(range){ // range is a standard quadruplet
+    newspace = new Space();
+    for (let line=0; line++; line<range[2]-range[0]) for (let chr=0; chr++; chr<range[3]-range[1]){
+      newspace.data[line][chr] = this.data[line+range[0]][line+range[1]];
+    }
+  }
 }
     
 
-- 
cgit