Files
Terrarum/src/net/torvald/terrarum/Terrarum.kt
2019-01-06 22:43:50 +09:00

742 lines
23 KiB
Kotlin

package net.torvald.terrarum
import com.badlogic.gdx.Gdx
import com.badlogic.gdx.Screen
import com.badlogic.gdx.assets.AssetManager
import com.badlogic.gdx.graphics.Color
import com.badlogic.gdx.graphics.GL20
import com.badlogic.gdx.graphics.OrthographicCamera
import com.badlogic.gdx.graphics.Texture
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import com.badlogic.gdx.graphics.glutils.FrameBuffer
import com.badlogic.gdx.graphics.glutils.ShaderProgram
import com.badlogic.gdx.graphics.glutils.ShapeRenderer
import com.badlogic.gdx.utils.GdxRuntimeException
import com.jme3.math.FastMath
import net.torvald.dataclass.CircularArray
import net.torvald.getcpuname.GetCpuName
import net.torvald.random.HQRNG
import net.torvald.terrarum.AppLoader.*
import net.torvald.terrarum.gameactors.Actor
import net.torvald.terrarum.gameactors.ActorID
import net.torvald.terrarum.imagefont.TinyAlphNum
import net.torvald.terrarum.itemproperties.ItemCodex
import net.torvald.terrarum.modulebasegame.Ingame
import net.torvald.terrarum.worlddrawer.FeaturesDrawer
import net.torvald.terrarum.worlddrawer.WorldCamera
import net.torvald.terrarumsansbitmap.gdx.GameFontBase
import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
import org.lwjgl.BufferUtils
import org.lwjgl.input.Controllers
import java.io.File
import kotlin.math.absoluteValue
typealias RGBA8888 = Int
/**
* Slick2d Version Created by minjaesong on 2015-12-30.
*
* LibGDX Version Created by minjaesong on 2017-06-15.
*/
object Terrarum : Screen {
/**
* All singleplayer "Player" must have this exact reference ID.
*/
const val PLAYER_REF_ID: Int = 0x91A7E2
lateinit var batch: SpriteBatch
lateinit var shapeRender: ShapeRenderer // DO NOT USE!! for very limited applications e.g. WeatherMixer
inline fun inShapeRenderer(shapeRendererType: ShapeRenderer.ShapeType = ShapeRenderer.ShapeType.Filled, action: (ShapeRenderer) -> Unit) {
shapeRender.begin(shapeRendererType)
action(shapeRender)
shapeRender.end()
}
//////////////////////////////
// GLOBAL IMMUTABLE CONFIGS //
//////////////////////////////
val WIDTH: Int
get() = AppLoader.screenW
val HEIGHT: Int
get() = AppLoader.screenH
//val WIDTH_MIN = 800
//val HEIGHT_MIN = 600
inline val HALFW: Int
get() = WIDTH.ushr(1)
inline val HALFH: Int
get() = HEIGHT.ushr(1)
/**
* To be used with physics simulator
*/
val PHYS_TIME_FRAME: Double = 26.0 + (2.0 / 3.0)
// 26.0 + (2.0 / 3.0) // lower value == faster gravity response (IT WON'T HOTSWAP!!)
// protip: using METER, game unit and SI unit will have same number
/**
* To be used with render, to achieve smooth frame drawing
* TARGET_INTERNAL_FPS > PHYS_TIME_FRAME for smooth frame drawing
*/
val TARGET_INTERNAL_FPS: Double = 60.0
internal val UPDATE_CATCHUP_MAX_TRIES = 4
var previousScreen: Screen? = null // to be used with temporary states like StateMonitorCheck
var ingame: IngameInstance? = null
private val javaHeapCircularArray = CircularArray<Int>(128)
private val nativeHeapCircularArray = CircularArray<Int>(128)
private val updateRateCircularArray = CircularArray<Double>(128)
val memJavaHeap: Int
get() {
javaHeapCircularArray.add((Gdx.app.javaHeap shr 20).toInt())
var acc = 0
javaHeapCircularArray.forEach { acc = maxOf(acc, it) }
return acc
}
val memNativeHeap: Int
get() {
nativeHeapCircularArray.add((Gdx.app.javaHeap shr 20).toInt())
var acc = 0
nativeHeapCircularArray.forEach { acc = maxOf(acc, it) }
return acc
}
val memXmx: Int
get() = (Runtime.getRuntime().maxMemory() shr 20).toInt()
val updateRateStr: String
get() {
updateRateCircularArray.add(updateRate)
var acc = 0.0
updateRateCircularArray.forEach { acc = maxOf(acc, it) }
return String.format("%.2f", acc)
}
val fontGame: GameFontBase = AppLoader.fontGame
lateinit var fontSmallNumbers: TinyAlphNum
var joypadLabelStart: Char = 0xE000.toChar() // lateinit
var joypadLableSelect: Char = 0xE000.toChar() // lateinit
var joypadLabelNinA: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinB: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinX: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinY: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinL: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinR: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinZL: Char = 0xE000.toChar() // lateinit TODO
var joypadLabelNinZR: Char = 0xE000.toChar() // lateinit TODO
val joypadLabelLEFT = 0xE068.toChar()
val joypadLabelDOWN = 0xE069.toChar()
val joypadLabelUP = 0xE06A.toChar()
val joypadLabelRIGHT = 0xE06B.toChar()
// 0x0 - 0xF: Game-related
// 0x10 - 0x1F: Config
// 0x100 and onward: unit tests for dev
val STATE_ID_SPLASH = 0x0
val STATE_ID_HOME = 0x1
val STATE_ID_GAME = 0x3
val STATE_ID_CONFIG_CALIBRATE = 0x11
val STATE_ID_TEST_FONT = 0x100
val STATE_ID_TEST_GFX = 0x101
val STATE_ID_TEST_TTY = 0x102
val STATE_ID_TEST_BLUR = 0x103
val STATE_ID_TEST_SHADER = 0x104
val STATE_ID_TEST_REFRESHRATE = 0x105
val STATE_ID_TEST_INPUT = 0x106
val STATE_ID_TEST_UI1 = 0x110
val STATE_ID_TOOL_NOISEGEN = 0x200
val STATE_ID_TOOL_RUMBLE_DIAGNOSIS = 0x201
var controller: org.lwjgl.input.Controller? = null
private set
val CONTROLLER_DEADZONE = 0.1f
/** Available CPU threads */
val THREADS = Runtime.getRuntime().availableProcessors() + 1
/**
* If the game is multithreading.
* True if:
*
* THREADS >= 2 and config "multithread" is true
*/
val MULTITHREAD: Boolean
get() = THREADS >= 3 && getConfigBoolean("multithread")
const val NAME = AppLoader.GAME_NAME
val systemArch = System.getProperty("os.arch")
val processor = GetCpuName.getModelName()
val processorVendor = GetCpuName.getCPUID()
lateinit var renderer: String
lateinit var rendererVendor: String
val is32BitJVM = !System.getProperty("sun.arch.data.model").contains("64")
lateinit var shaderBlur: ShaderProgram
lateinit var shaderBayer: ShaderProgram
lateinit var shaderSkyboxFill: ShaderProgram
lateinit var shaderBlendGlow: ShaderProgram
lateinit var shaderRGBOnly: ShaderProgram
lateinit var shaderAtoGrey: ShaderProgram
lateinit var testTexture: Texture
/** Actually just a mesh of four vertices, two triangles -- not a literal glQuad */
val fullscreenQuad = AppLoader.fullscreenQuad
val deltaTime: Float; get() = Gdx.graphics.rawDeltaTime
lateinit var assetManager: AssetManager // TODO
init {
println("$NAME version ${AppLoader.getVERSION_STRING()}")
println("Java Runtime version ${System.getProperty("java.version")}")
println("LibGDX version ${com.badlogic.gdx.Version.VERSION}")
println("os.arch = $systemArch") // debug info
if (is32BitJVM) {
printdbgerr(this, "32 Bit JVM detected")
}
println("processor = $processor")
println("vendor = $processorVendor")
joypadLabelStart = when (getConfigString("joypadlabelstyle")) {
"nwii" -> 0xE04B.toChar() // + mark
"logitech" -> 0xE05A.toChar() // number 10
else -> 0xE042.toChar() // |> mark (sonyps, msxb360, generic)
}
joypadLableSelect = when (getConfigString("joypadlabelstyle")) {
"nwii" -> 0xE04D.toChar() // - mark
"logitech" -> 0xE059.toChar() // number 9
"sonyps" -> 0xE043.toChar() // solid rectangle
"msxb360" -> 0xE041.toChar() // <| mark
else -> 0xE043.toChar() // solid rectangle
}
// setting environment as MOBILE precedes this code
if (environment != RunningEnvironment.MOBILE) {
environment = try {
Controllers.getController(0) // test if controller exists
if (getConfigString("pcgamepadenv") == "console")
RunningEnvironment.CONSOLE
else
RunningEnvironment.PC
}
catch (e: IndexOutOfBoundsException) {
RunningEnvironment.PC
}
}
}
val RENDER_FPS = getConfigInt("displayfps")
val USE_VSYNC = getConfigBoolean("usevsync")
var VSYNC = USE_VSYNC
val VSYNC_TRIGGER_THRESHOLD = 56
val GL_VERSION: Int
get() = Gdx.graphics.glVersion.majorVersion * 100 +
Gdx.graphics.glVersion.minorVersion * 10 +
Gdx.graphics.glVersion.releaseVersion
val MINIMAL_GL_VERSION = 210
val GL_MAX_TEXTURE_SIZE: Int
get() {
val intBuffer = BufferUtils.createIntBuffer(16) // size must be at least 16, or else LWJGL complains
Gdx.gl.glGetIntegerv(GL20.GL_MAX_TEXTURE_SIZE, intBuffer)
intBuffer.rewind()
return intBuffer.get()
}
val MINIMAL_GL_MAX_TEXTURE_SIZE = 4096
override fun show() {
if (environment != RunningEnvironment.MOBILE) {
Gdx.gl.glDisable(GL20.GL_DITHER)
}
assetManager = AssetManager()
testTexture = Texture(Gdx.files.internal("./assets/test_texture.tga"))
val glInfo = Gdx.graphics.glVersion.debugVersionString
println("GL_VERSION = $GL_VERSION")
println("GL_MAX_TEXTURE_SIZE = $GL_MAX_TEXTURE_SIZE")
println("GL info:\n$glInfo") // debug info
// set up renderer info variables
renderer = Gdx.graphics.glVersion.rendererString
rendererVendor = Gdx.graphics.glVersion.vendorString
if (GL_VERSION < MINIMAL_GL_VERSION || GL_MAX_TEXTURE_SIZE < MINIMAL_GL_MAX_TEXTURE_SIZE) {
// TODO notify properly
throw GdxRuntimeException("Graphics device not capable -- device's GL_VERSION: $GL_VERSION, required: $MINIMAL_GL_VERSION; GL_MAX_TEXTURE_SIZE: $GL_MAX_TEXTURE_SIZE, required: $MINIMAL_GL_MAX_TEXTURE_SIZE")
}
// resize fullscreen quad?
TextureRegionPack.globalFlipY = true // !! TO MAKE LEGACY CODE RENDER ON ITS POSITION !!
Gdx.graphics.isContinuousRendering = true
batch = SpriteBatch()
shapeRender = ShapeRenderer()
//fontGame = GameFontBase("assets/graphics/fonts/terrarum-sans-bitmap", flipY = true)
fontSmallNumbers = TinyAlphNum
ShaderProgram.pedantic = false
shaderBlur = ShaderProgram(Gdx.files.internal("assets/blur.vert"), Gdx.files.internal("assets/blur.frag"))
if (getConfigBoolean("fxdither")) {
shaderBayer = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/4096_bayer.frag"))
shaderBayer.begin()
shaderBayer.setUniformf("rcount", 64f)
shaderBayer.setUniformf("gcount", 64f)
shaderBayer.setUniformf("bcount", 64f)
shaderBayer.end()
shaderSkyboxFill = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/4096_bayer_skyboxfill.frag"))
shaderSkyboxFill.begin()
shaderSkyboxFill.setUniformf("rcount", 64f)
shaderSkyboxFill.setUniformf("gcount", 64f)
shaderSkyboxFill.setUniformf("bcount", 64f)
shaderSkyboxFill.end()
}
else {
shaderBayer = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/passthru.frag"))
shaderSkyboxFill = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/skyboxfill.frag"))
}
shaderBlendGlow = ShaderProgram(Gdx.files.internal("assets/blendGlow.vert"), Gdx.files.internal("assets/blendGlow.frag"))
shaderRGBOnly = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/rgbonly.frag"))
shaderAtoGrey = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/aonly.frag"))
if (!shaderBlendGlow.isCompiled) {
Gdx.app.log("shaderBlendGlow", shaderBlendGlow.log)
System.exit(1)
}
if (getConfigBoolean("fxdither")) {
if (!shaderBayer.isCompiled) {
Gdx.app.log("shaderBayer", shaderBayer.log)
System.exit(1)
}
if (!shaderSkyboxFill.isCompiled) {
Gdx.app.log("shaderSkyboxFill", shaderSkyboxFill.log)
System.exit(1)
}
}
AppLoader.GAME_LOCALE = getConfigString("language")
printdbg(this, "locale = ${AppLoader.GAME_LOCALE}")
ModMgr // invoke Module Manager
printdbg(this, "all modules loaded successfully")
// jump straight into the ingame
val ingame = Ingame(batch)
ingame.gameLoadInfoPayload = Ingame.NewWorldParameters(2400, 800, HQRNG().nextLong())
ingame.gameLoadMode = Ingame.GameLoadMode.CREATE_NEW
LoadScreen.screenToLoad = ingame
this.ingame = ingame
setScreen(LoadScreen)
// title screen
//AppLoader.getINSTANCE().setScreen(TitleScreen(batch))
}
fun setScreen(screen: Screen) {
AppLoader.getINSTANCE().setScreen(screen)
}
override fun render(delta: Float) {
AppLoader.debugTimers["GDX.delta"] = delta.times(1000_000_000f).toLong()
AppLoader.getINSTANCE().screen.render(deltaTime)
//GLOBAL_RENDER_TIMER += 1
// moved to AppLoader; global event must be place at the apploader to prevent ACCIDENTAL forgot-to-update type of bug.
}
override fun pause() {
AppLoader.getINSTANCE().screen.pause()
}
override fun resume() {
AppLoader.getINSTANCE().screen.resume()
}
override fun dispose() {
AppLoader.getINSTANCE().screen.dispose()
fontGame.dispose()
fontSmallNumbers.dispose()
//dispose any other resources used in this level
shaderBayer.dispose()
shaderSkyboxFill.dispose()
shaderBlur.dispose()
shaderBlendGlow.dispose()
shapeRender.dispose()
batch.dispose()
}
override fun hide() {
AppLoader.getINSTANCE().screen.hide()
}
override fun resize(width: Int, height: Int) {
/*try {
AppLoader.getINSTANCE().screen.resize(width, height)
}
catch (e: NullPointerException) { }*/ // I sense circular recursion...
printdbg(this, "newsize: ${Gdx.graphics.width}x${Gdx.graphics.height} | internal: ${width}x$height")
}
val currentSaveDir: File
get() {
val file = File(defaultSaveDir + "/test")
// failsafe?
if (!file.exists()) file.mkdir()
return file // TODO TEST CODE
}
/** Position of the cursor in the world */
inline val mouseX: Double
get() = WorldCamera.x + Gdx.input.x / (ingame?.screenZoom ?: 1f).toDouble()
/** Position of the cursor in the world */
inline val mouseY: Double
get() = WorldCamera.y + Gdx.input.y / (ingame?.screenZoom ?: 1f).toDouble()
/** Position of the cursor in the world */
@JvmStatic inline val mouseTileX: Int
get() = (mouseX / FeaturesDrawer.TILE_SIZE).floorInt()
/** Position of the cursor in the world */
@JvmStatic inline val mouseTileY: Int
get() = (mouseY / FeaturesDrawer.TILE_SIZE).floorInt()
inline val mouseScreenX: Int
get() = Gdx.input.x
inline val mouseScreenY: Int
get() = Gdx.input.y
/** Bigger than 1.0 */
inline val updateRate: Double
get() = 1.0 / Gdx.graphics.deltaTime
/** Smaller than 1.0 */
val renderRate = 1.0 / TARGET_INTERNAL_FPS
val renderRateStr = TARGET_INTERNAL_FPS.toString()
/**
* Usage:
*
* override var referenceID: Int = generateUniqueReferenceID()
*/
fun generateUniqueReferenceID(renderOrder: Actor.RenderOrder): ActorID {
fun hasCollision(value: ActorID) =
try {
Terrarum.ingame!!.theGameHasActor(value) ||
value < ItemCodex.ACTORID_MIN ||
value !in when (renderOrder) {
Actor.RenderOrder.BEHIND -> Actor.RANGE_BEHIND
Actor.RenderOrder.MIDDLE -> Actor.RANGE_MIDDLE
Actor.RenderOrder.MIDTOP -> Actor.RANGE_MIDTOP
Actor.RenderOrder.FRONT -> Actor.RANGE_FRONT
Actor.RenderOrder.OVERLAY-> Actor.RANDE_OVERLAY
}
}
catch (gameNotInitialisedException: KotlinNullPointerException) {
false
}
var ret: Int
do {
ret = HQRNG().nextInt().and(0x7FFFFFFF) // set new ID
} while (hasCollision(ret)) // check for collision
return ret
}
}
inline fun SpriteBatch.inUse(action: (SpriteBatch) -> Unit) {
this.begin()
action(this)
this.end()
}
inline fun ShapeRenderer.inUse(shapeRendererType: ShapeRenderer.ShapeType = ShapeRenderer.ShapeType.Filled, action: (ShapeRenderer) -> Unit) {
this.begin(shapeRendererType)
action(this)
this.end()
}
/** Use Batch inside of it! */
inline fun FrameBuffer.inAction(camera: OrthographicCamera?, batch: SpriteBatch?, action: (FrameBuffer) -> Unit) {
//this.begin()
FrameBufferManager.begin(this)
camera?.setToOrtho(true, this.width.toFloat(), this.height.toFloat())
camera?.position?.set((this.width / 2f).round(), (this.height / 2f).round(), 0f) // TODO floor? ceil? round?
camera?.update()
batch?.projectionMatrix = camera?.combined
action(this)
//this.end()
FrameBufferManager.end()
camera?.setToOrtho(true, Terrarum.WIDTH.toFloat(), Terrarum.HEIGHT.toFloat())
camera?.update()
batch?.projectionMatrix = camera?.combined
}
fun Float.round(): Float {
return Math.round(this).toFloat()
}
// ShapeRenderer alternative for rects
fun SpriteBatch.fillRect(x: Float, y: Float, w: Float, h: Float) {
this.draw(AppLoader.textureWhiteSquare, x, y, w, h)
}
fun SpriteBatch.drawStraightLine(x: Float, y: Float, otherEnd: Float, thickness: Float, isVertical: Boolean) {
if (!isVertical)
this.fillRect(x, y, otherEnd - x, thickness)
else
this.fillRect(x, y, thickness, otherEnd - y)
}
infix fun Color.mul(other: Color): Color = this.cpy().mul(other)
/*inline fun Color.toRGB10(): RGB10 {
val bits = this.toIntBits() // ABGR
// 0bxxRRRRRRRRRRGGGGGGGGGGBBBBBBBBBB
// 0bAAAAAAAABBBBBBBBGGGGGGGGRRRRRRRR
return bits.and(0x0000FF).shl(20) or bits.and(0x00FF00).shl(2) or bits.and(0xFF0000).ushr(16)
}*/
fun blendMul(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_DST_COLOR, GL20.GL_ONE_MINUS_SRC_ALPHA)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
}
fun blendNormal(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
}
fun blendScreen(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_ONE, GL20.GL_ONE_MINUS_SRC_COLOR)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
}
fun blendDisable(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).disableBlending()
}
object BlendMode {
const val SCREEN = "screen"
const val MULTIPLY = "multiply"
const val NORMAL = "normal"
//const val MAX = "GL_MAX" // not supported by GLES -- use shader
fun resolve(mode: String, batch: SpriteBatch? = null) {
when (mode) {
SCREEN -> blendScreen(batch)
MULTIPLY -> blendMul(batch)
NORMAL -> blendNormal(batch)
//MAX -> blendLightenOnly() // not supported by GLES -- use shader
else -> throw Error("Unknown blend mode: $mode")
}
}
}
enum class RunningEnvironment {
PC, CONSOLE, MOBILE
}
infix fun Color.screen(other: Color) = Color(
1f - (1f - this.r) * (1f - other.r),
1f - (1f - this.g) * (1f - other.g),
1f - (1f - this.b) * (1f - other.b),
1f - (1f - this.a) * (1f - other.a)
)
infix fun Color.minus(other: Color) = Color( // don't turn into an operator!
this.r - other.r,
this.g - other.g,
this.b - other.b,
this.a - other.a
)
fun Int.toHex() = this.toLong().and(0xFFFFFFFF).toString(16).padStart(8, '0').toUpperCase()
fun MutableList<Any>.shuffle() {
for (i in this.size - 1 downTo 1) {
val rndIndex = (Math.random() * (i + 1)).toInt()
val t = this[rndIndex]
this[rndIndex] = this[i]
this[i] = t
}
}
val ccW = GameFontBase.toColorCode(0xFFFF)
val ccY = GameFontBase.toColorCode(0xFE8F)
val ccO = GameFontBase.toColorCode(0xFB2F)
val ccR = GameFontBase.toColorCode(0xF88F)
val ccF = GameFontBase.toColorCode(0xFAEF)
val ccM = GameFontBase.toColorCode(0xEAFF)
val ccB = GameFontBase.toColorCode(0x88FF)
val ccC = GameFontBase.toColorCode(0x8FFF)
val ccG = GameFontBase.toColorCode(0x8F8F)
val ccV = GameFontBase.toColorCode(0x080F)
val ccX = GameFontBase.toColorCode(0x853F)
val ccK = GameFontBase.toColorCode(0x888F)
typealias Second = Float
fun Int.sqr(): Int = this * this
fun Double.floorInt() = Math.floor(this).toInt()
fun Float.floorInt() = FastMath.floor(this)
fun Float.floor() = FastMath.floor(this).toFloat()
fun Double.ceilInt() = Math.ceil(this).toInt()
fun Float.ceil(): Float = FastMath.ceil(this).toFloat()
fun Float.ceilInt() = FastMath.ceil(this)
fun Double.round() = Math.round(this).toDouble()
fun Double.floor() = Math.floor(this)
fun Double.ceil() = this.floor() + 1.0
fun Double.roundInt(): Int = Math.round(this).toInt()
fun Float.roundInt(): Int = Math.round(this)
fun Double.abs() = Math.abs(this)
fun Double.sqr() = this * this
fun Double.sqrt() = Math.sqrt(this)
fun Float.sqrt() = FastMath.sqrt(this)
fun Int.abs() = this.absoluteValue
fun Double.bipolarClamp(limit: Double) =
this.coerceIn(-limit, limit)
fun absMax(left: Double, right: Double): Double {
if (left > 0 && right > 0)
if (left > right) return left
else return right
else if (left < 0 && right < 0)
if (left < right) return left
else return right
else {
val absL = left.abs()
val absR = right.abs()
if (absL > absR) return left
else return right
}
}
fun Double.magnSqr() = if (this >= 0.0) this.sqr() else -this.sqr()
fun Double.sign() = if (this > 0.0) 1.0 else if (this < 0.0) -1.0 else 0.0
fun interpolateLinear(scale: Double, startValue: Double, endValue: Double): Double {
if (startValue == endValue) {
return startValue
}
if (scale <= 0.0) {
return startValue
}
if (scale >= 1.0) {
return endValue
}
return (1.0 - scale) * startValue + scale * endValue
}
fun <T> List<T>.linearSearch(selector: (T) -> Boolean): Int? {
this.forEachIndexed { index, it ->
if (selector.invoke(it)) return index
}
return null
}
fun <T> List<T>.linearSearchBy(selector: (T) -> Boolean): T? {
this.forEach {
if (selector.invoke(it)) return it
}
return null
}