mirror of
https://github.com/curioustorvald/Terrarum.git
synced 2026-06-12 03:24:06 +09:00
better splash
This commit is contained in:
minjaesong
@@ -1,20 +1,32 @@
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package net.torvald.terrarum
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import com.badlogic.gdx.graphics.Color
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import com.badlogic.gdx.graphics.GL20
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import com.badlogic.gdx.graphics.OrthographicCamera
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import com.badlogic.gdx.graphics.Texture
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import com.badlogic.gdx.graphics.g2d.SpriteBatch
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import net.torvald.terrarum.langpack.Lang
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import net.torvald.terrarum.ui.Toolkit
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import net.torvald.terrarum.ui.UICanvas
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import net.torvald.terrarum.ui.UIItemHorzSlider
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import kotlin.math.max
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/**
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* Draws the loading bar and subtitle on the cold-boot splash screen.
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* Called from App.drawSplash() (Java static context) on the GL thread.
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* Draws the cold-boot splash screen: backdrop, logo, loading bar, subtitle, and health messages.
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* Consolidated from App.drawSplash() so all splash rendering lives here.
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*
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* Progress is time-based: p = t / (t + HALF_TIME_MS), snapping to 1.0 when
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* [loadingComplete] is set to true by App right before transitioning to the title screen.
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*
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* Created by minjaesong on 2026-04-06.
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*/
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object SplashScreen {
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/** Set to true by App when loading completes, to snap the bar to 100%. */
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@JvmField @Volatile var loadingComplete = false
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private const val HALF_TIME_MS = 1500L // progress = t / (t + HALF_TIME_MS)
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private val stubParent = object : UICanvas() {
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override var width = 0
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override var height = 0
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@@ -25,15 +37,74 @@ object SplashScreen {
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private var loadingBar: UIItemHorzSlider? = null
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private var lastBarWidth = 0
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private var startTime = 0L
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private val subtitleCol = Color(0.75f, 0.75f, 0.75f, 1f)
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@JvmStatic
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fun render(batch: SpriteBatch, camera: OrthographicCamera) {
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val progress = CommonResourcePool.loadingProgress
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@JvmStatic fun render(batch: SpriteBatch, camera: OrthographicCamera) {
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App.setCameraPosition(0f, 0f)
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val batch = App.logoBatch
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val scr = App.scr
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val drawWidth = Toolkit.drawWidth
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val showHealth = App.getConfigBoolean("showhealthmessageonstartup")
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batch.color = Color.WHITE
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batch.setBlendFunctionSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_ONE, GL20.GL_ONE_MINUS_SRC_ALPHA)
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val safetyTextLen = if (showHealth) App.fontGame.getWidth(Lang["APP_WARNING_HEALTH_AND_SAFETY", true]) else 0
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val logoPosX0 = (drawWidth - App.splashScreenLogo.regionWidth - safetyTextLen) ushr 1
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val logoPosY = Math.round(scr.height / 15f)
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val textY = logoPosY + App.splashScreenLogo.regionHeight - 16
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// backdrop
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App.splashBackdrop?.let { backdrop ->
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batch.setShader(null)
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batch.inUse {
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val size = max(scr.width, scr.height).toFloat()
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val x = if (scr.width > scr.height) 0f else (scr.width - size) / 2f
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val y = if (scr.width > scr.height) (scr.height - size) / 2f else 0f
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batch.draw(backdrop, x, y, size, size)
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}
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}
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val logoPosX = logoPosX0
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// logo reflection
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batch.setShader(App.shaderReflect)
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batch.color = Color.WHITE
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batch.inUse {
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if (showHealth) {
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batch.draw(App.splashScreenLogo, logoPosX.toFloat(), (logoPosY + App.splashScreenLogo.regionHeight).toFloat())
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} else {
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batch.draw(App.splashScreenLogo,
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(drawWidth - App.splashScreenLogo.regionWidth) / 2f,
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(scr.height - App.splashScreenLogo.regionHeight * 2) / 2f + App.splashScreenLogo.regionHeight)
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}
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}
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// logo
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batch.setShader(null)
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batch.inUse {
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if (showHealth) {
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batch.draw(App.splashScreenLogo, logoPosX.toFloat(), logoPosY.toFloat())
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} else {
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batch.draw(App.splashScreenLogo,
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(drawWidth - App.splashScreenLogo.regionWidth) / 2f,
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(scr.height - App.splashScreenLogo.regionHeight * 2) / 2f)
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}
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}
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// loading bar+subtitle
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if (startTime == 0L) startTime = System.currentTimeMillis()
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val elapsed = System.currentTimeMillis() - startTime
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val progress = if (loadingComplete) 1f
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else elapsed.toFloat() / (elapsed + HALF_TIME_MS).toFloat()
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val barWidth = (Toolkit.drawWidth * 0.4f).toInt().coerceAtLeast(200)
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val barX = (Toolkit.drawWidth - barWidth) / 2
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val barY = App.scr.height - 48
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val barY = App.scr.height - App.scr.tvSafeGraphicsHeight - 24
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if (loadingBar == null || lastBarWidth != barWidth) {
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lastBarWidth = barWidth
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@@ -48,16 +119,36 @@ object SplashScreen {
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bar.posY = barY
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bar.handleWidth = (progress * barWidth).toInt().coerceIn(12, barWidth)
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val subtitle = "${App.GAME_NAME} ${App.getVERSION_STRING()}"
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val subtitle = "Reticulating Splines..."
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val subtitleW = App.fontGame.getWidth(subtitle)
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val subtitleX = (Toolkit.drawWidth - subtitleW) / 2f
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val subtitleY = (barY - 20).toFloat() // leave gap above the bar
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val subtitleY = (barY - 32).toFloat()
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batch.inUse {
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batch.color = subtitleCol
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App.fontGame.draw(batch, subtitle, subtitleX, subtitleY)
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batch.color = Color.WHITE
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bar.render(0f, batch, camera)
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}
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// health messages
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if (showHealth) {
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batch.setShader(null)
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batch.inUse {
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batch.color = App.splashTextCol
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App.fontGame.draw(batch, Lang["APP_WARNING_HEALTH_AND_SAFETY", true],
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(logoPosX + App.splashScreenLogo.regionWidth).toFloat(), textY.toFloat())
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val tex1 = CommonResourcePool.getAsTexture("title_health1")
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val tex2 = CommonResourcePool.getAsTexture("title_health2")
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val virtualHeight = scr.height - logoPosY - App.splashScreenLogo.regionHeight / 4
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val virtualHeightOffset = scr.height - virtualHeight
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batch.drawFlipped(tex1, ((drawWidth - tex1.width) ushr 1).toFloat(), (virtualHeightOffset + (virtualHeight ushr 1) - 16).toFloat(), tex1.width.toFloat(), (-tex1.height).toFloat())
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batch.drawFlipped(tex2, ((drawWidth - tex2.width) ushr 1).toFloat(), (virtualHeightOffset + (virtualHeight ushr 1) + 16 + tex2.height).toFloat(), tex2.width.toFloat(), (-tex2.height).toFloat())
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}
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}
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App.batch.setBlendFunctionSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_ONE, GL20.GL_ONE_MINUS_SRC_ALPHA)
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batch.begin()
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batch.color = subtitleCol
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App.fontGame.draw(batch, subtitle, subtitleX, subtitleY)
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batch.color = Color.WHITE
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bar.render(0f, batch, camera)
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batch.end()
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}
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}
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