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[orx-fcurve] Add missing cursor update (#330)

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This commit is contained in:
Abe Pazos
2024-03-29 07:10:56 +00:00
committed by GitHub
parent 04814e683c
commit 48bdcc0c60
2 changed files with 14 additions and 11 deletions
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24
orx-fcurve/README.md
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@@ -1,18 +1,20 @@
# orx-fcurve
FCurves are 1 dimensional function curves constructed from 2D bezier functions.
FCurves are 1 dimensional function curves constructed from 2D bezier functions.
The language to express Fcurves is similar to SVG's path language.
| Command | Description |
|-----------------------|-------------------------------------------------------------|
| `m/M y` | move the pen only in the y-direction |
| `h/H x` | draw a horizontal line |
| `l/L x y` | line to (x, y) |
| `q/Q x0 y0 x y` | quadratic bezier to (x,y) and control-point (x0, y0) |
| `c/C x0 y0 x1 y1 x y` | cubic bezier to (x,y) and control-points (x0, y0), (x1, y1) |
| `t/T x y` | quadratic smooth to (x, y) |
| `s/S x1 y1 x y` | cubic smooth to (x,y) and control point (x1, y1) |
`x` values usually represent duration in seconds.
| Relative command | Absolute command | Description |
|---------------------|-----------------------|-------------------------------------------------------------|
| `m y` | `M y` | move the pen only in the y-direction |
| `h x` | `H x` | hold a value to draw a horizontal line |
| `l x,y` | `L x,y` | line to (x, y) |
| `q x0,y0,x,y` | `Q x0,y0,x,y` | quadratic bezier to (x,y) and control-point (x0, y0) |
| `c x0,y0,x1,y1,x,y` | `C x0,y0,x1,y1,x,y` | cubic bezier to (x,y) and control-points (x0, y0), (x1, y1) |
| `t x,y` | `T x,y` | quadratic smooth to (x, y) |
| `s x1,y1,x,y` | `S x1,y1,x,y` | cubic smooth to (x,y) and control point (x1, y1) |
## Example Fcurves
@@ -20,7 +22,7 @@ The language to express Fcurves is similar to SVG's path language.
`M0 h10 c3,10,5,-10,8,0.5 L5,5`
New lines are allowed, which can help in formatting the Fcurve
New lines and commas are optional. They can help with readability.
```
M0 h10
c3,10,5,-10,8,0.5

1
orx-fcurve/src/commonMain/kotlin/FCurve.kt
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@@ -297,6 +297,7 @@ class FCurveBuilder {
Vector2(cursor.x + x, cursor.y * r + y)
).scaleTangents()
)
cursor = Vector2(cursor.x + x, cursor.y * r + y)
path += "${if (relative) "s" else "S"}$x1,$y1,$x,$y"
}