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[orx-fcurve] Add mfcurve, FCurve.min, FCurve.max, DemoFCurveSheet01.kt

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Edwin Jakobs
2024-05-13 08:30:05 +02:00
parent 968d544d3b
commit cc92dc26b2
6 changed files with 348 additions and 50 deletions
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12
orx-fcurve/README.md
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@@ -23,7 +23,7 @@ This is an example of a flat horizontal FCurve:
```kotlin
// set the initial value to 0.5, hold that value for 1 seconds
val sizeCurve = fcurve("M0.5 H1")
val sizeCurve = fcurve("M0.5 h1")
```
Two horizontal segments at different heights:
@@ -36,12 +36,6 @@ val sizeCurve = fcurve("M0.4 h0.5 M0.6 h0.5")
Note that `x` values are relative, except for `H` where `x` is absolute.
For `y` values, lower case commands are relative and upper case commands are absolute.
The last example can be written with absolute times as:
```kotlin
// hold value 0.4 until time 0.5, then hold value 0.6 until time 1.0
val sizeCurve = fcurve("M0.4 H0.5 M0.6 H1.0")
```
### Line
@@ -103,11 +97,11 @@ commands require the presence of a previous segment, otherwise the program will
```kotlin
// Hold the value 0.5 during 0.2 seconds
// then draw a smooth curve down to 0.5, up to 0.7 down to 0.3 and up to 0.7
val smoothCurveT = fcurve("M0.5 H0.2 T0.2,0.3 T0.2,0.7 T0.2,0.3 T0.2,0.7")
val smoothCurveT = fcurve("M0.5 h0.2 T0.2,0.3 T0.2,0.7 T0.2,0.3 T0.2,0.7")
// Hold the value 0.5 during 0.2 seconds
// then draw a smooth with 4 repetitions where we move up slowly and down quickly
val smoothCurveS = fcurve("M0.5 H0.2 S0.2,0.0,0.2,0.5 S0.2,0.0,0.2,0.5 S0.2,0.0,0.2,0.5 S0.2,0.0,0.2,0.5")
val smoothCurveS = fcurve("M0.5 h0.2 S0.2,0.0,0.2,0.5 S0.2,0.0,0.2,0.5 S0.2,0.0,0.2,0.5 S0.2,0.0,0.2,0.5")
```
## Useful FCurve methods