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author | Holden Rohrer <hr@hrhr.dev> | 2020-02-09 16:07:56 -0500 |
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committer | Holden Rohrer <hr@hrhr.dev> | 2020-02-09 16:16:03 -0500 |
commit | 57d6b3e077f55b63ec98a5fefdbdae50b5335e09 (patch) | |
tree | 8f23331a7765b99a2b3c1a0d74abfaa0da68cfd1 /utils/vec.js | |
parent | 0cdbd87a8eb1994c47dd8970fc6c948cf97fabab (diff) |
externalized charToTile component of raster
Diffstat (limited to 'utils/vec.js')
-rw-r--r-- | utils/vec.js | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/utils/vec.js b/utils/vec.js index d595989..57104df 100644 --- a/utils/vec.js +++ b/utils/vec.js @@ -33,6 +33,9 @@ exports.dot = function(orig,vec){ exports.tileToChar = function(orig){ return exports.dot(orig, [8,16]); } +exports.charToTile = function(orig){ + return exports.elem(exports.dot(orig, [1/8, 1/16]), [], a => Math.floor(a)); +} exports.norm = function(orig){ let sum = orig.reduce( (acc, cur) => acc+cur ); return exports.dot(orig, 1/sum); |