c8f7dd52c6
- Adjust some demo window sizes. - Replace Random.double by Double.uniform - Tweak some demos so screenshots look more interesting
45 lines
1.4 KiB
Kotlin
45 lines
1.4 KiB
Kotlin
import org.openrndr.application
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import org.openrndr.extra.expressions.evaluateExpression
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import org.openrndr.extra.gui.GUI
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import org.openrndr.extra.gui.addTo
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import org.openrndr.extra.parameters.TextParameter
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fun main() = application {
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program {
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val gui = GUI()
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gui.compartmentsCollapsedByDefault = false
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val settings = object {
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@TextParameter("x expression", order = 10)
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var xExpression = "cos(t) * 50.0 + width / 2.0"
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@TextParameter("y expression", order = 20)
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var yExpression = "sin(t) * 50.0 + height / 2.0"
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@TextParameter("radius expression", order = 30)
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var radiusExpression = "cos(t) * 50.0 + 50.0"
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}.addTo(gui)
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extend(gui)
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extend {
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//gui.visible = mouse.position.x < 200.0
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val expressionContext =
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mapOf("t" to seconds, "width" to drawer.bounds.width, "height" to drawer.bounds.height)
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fun eval(expression: String): Double =
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try {
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evaluateExpression(expression, expressionContext) ?: 0.0
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} catch (e: Throwable) {
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0.0
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}
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val x = eval(settings.xExpression)
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val y = eval(settings.yExpression)
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val radius = eval(settings.radiusExpression)
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drawer.circle(x, y, radius)
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}
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}
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}
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