f0b38ae · elk · git.iko.soy

git.iko.soy/elk

Add Transform2D translation

I'm unsure of why so much code is commented out in Transform2D. A more mature version of this module could generally be useful for doing collision detection/modelling scenegraphs outside of the Collage interface.

commitf0b38aeb3c980bd943f0fa2320ebe35d92068c06 authorMichael Sondergaard <msond@cs.au.dk> dateMon 21 Oct 2013, 13:59 (13 years ago) parent71fb0a3

2 files changed+8−2

compare with master

unifiedsplit

libraries/Native/Transform2D.js+4−1 libraries/Transform2D.elm+4−1

libraries/Native/Transform2D.js+4−1

@@ -37,7 +37,9 @@ Elm.Native.Transform2D.make = function(elm) {

3737 var s = Math.sin(t);

3838 return new A([c, -s, 0, s, c, 0]);

3939 }

40−

40+ function translation(x,y) {

41+ return new A([1,0,x,0,1,y]);

42+ }

4143 function rotate(t,m) {

4244 var c = Math.cos(t);

4345 var s = Math.sin(t);

@@ -84,6 +86,7 @@ Elm.Native.Transform2D.make = function(elm) {

8486 identity:identity,

8587 matrix:F6(matrix),

8688 rotation:rotation,

89+ translation:F2(translation),

8790 multiply:F2(multiply)

8891 /*

8992 transform:F7(transform),

libraries/Transform2D.elm+4−1

@@ -46,6 +46,9 @@ Given an angle t, it creates a counterclockwise rotation matrix:

4646rotation : Float -> Transform2D

4747rotation = Native.Transform2D.rotation

4848

49+translation : Float -> Float -> Transform2D

50+translation = Native.Transform2D.translation

51+

4952{-| Multiplies two transforms together:

5053

5154 multiply a b

@@ -54,4 +57,4 @@ rotation = Native.Transform2D.rotation

5457 \ a21 a22 / \ b21 b22 /

5558-}

5659multiply : Transform2D -> Transform2D -> Transform2D

57−multiply = Native.Transform2D.multiply

60+multiply = Native.Transform2D.multiply