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UINSMenu is made to show how to code 'UI dragging'

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This commit is contained in:
Minjae Song
2018-12-09 20:00:52 +09:00
parent 0c20ed3418
commit b44699ae04
5 changed files with 80 additions and 13 deletions
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16
src/net/torvald/terrarum/ui/UICanvas.kt
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@@ -3,6 +3,7 @@ package net.torvald.terrarum.ui
import com.badlogic.gdx.Gdx
import com.badlogic.gdx.graphics.Camera
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import net.torvald.terrarum.AppLoader
import net.torvald.terrarum.Terrarum
import net.torvald.terrarum.Second
import net.torvald.terrarum.roundInt
@@ -80,7 +81,12 @@ abstract class UICanvas(
/** Override this for the actual update. Note that you must update uiItems by yourself. */
abstract fun updateUI(delta: Float)
/** Override this for the actual render. Note that you must render uiItems by yourself. */
/**
* Override this for the actual render. Note that you must render uiItems by yourself.
*
* Under normal circumstances, draws are automatically translated as per the handler's X/Y position.
* This means, don't write like: ```draw(posX + 4, posY + 32)```, do instead: ```draw(4, 32)``` unless you have a good reason to do so.
*/
abstract fun renderUI(batch: SpriteBatch, camera: Camera)
/**
@@ -109,6 +115,8 @@ abstract class UICanvas(
uiItems.add(uiItem)
}
fun mouseInScreen(x: Int, y: Int) = x in 0 until AppLoader.appConfig.width && y in 0 until AppLoader.appConfig.height
open fun mouseMoved(screenX: Int, screenY: Int): Boolean {
if (this.isVisible) {
uiItems.forEach { it.mouseMoved(screenX, screenY) }
@@ -117,6 +125,10 @@ abstract class UICanvas(
}
else return false
}
/**
* When implementing this, make sure to use ```mouseInScreen()``` function!
*/
open fun touchDragged(screenX: Int, screenY: Int, pointer: Int): Boolean {
if (this.isVisible) {
uiItems.forEach { it.touchDragged(screenX, screenY, pointer) }
@@ -126,7 +138,7 @@ abstract class UICanvas(
else return false
}
open fun touchDown(screenX: Int, screenY: Int, pointer: Int, button: Int): Boolean {
if (this.isVisible) {
if (this.isVisible && mouseInScreen(screenX, screenY)) {
uiItems.forEach { it.touchDown(screenX, screenY, pointer, button) }
handler.subUIs.forEach { it.touchDown(screenX, screenY, pointer, button) }
return true