100 lines
3.0 KiB
Kotlin
100 lines
3.0 KiB
Kotlin
package net.shadowfacts.cacao
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import net.minecraft.client.MinecraftClient
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import net.minecraft.client.gui.screen.Screen
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import net.minecraft.sound.SoundEvents
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import net.minecraft.text.LiteralText
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import net.shadowfacts.cacao.geometry.Point
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import net.shadowfacts.cacao.util.MouseButton
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import net.shadowfacts.cacao.util.RenderHelper
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import net.shadowfacts.kiwidsl.dsl
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import java.util.*
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/**
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* This class serves as the bridge between Cacao and a Minecraft [Screen]. It renders Cacao [Window]s in Minecraft and
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* sends input events from Minecraft back to Cacao objects.
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*
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* @author shadowfacts
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*/
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open class CacaoScreen: Screen(LiteralText("CacaoScreen")) {
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// _windows is the internal, mutable object, since we only want it to by mutated by the add/removeWindow methods.
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private val _windows = LinkedList<Window>()
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/**
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* The list of windows that belong to this screen.
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* This list should never be modified directly, only by using the [addWindow]/[removeWindow] methods.
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*/
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val windows: List<Window> = _windows
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/**
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* Adds the given window to this screen's window list.
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* By default, the new window is added at the tail of the window list, making it the active window.
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* Only the active window will receive input events.
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*
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* @param window The Window to add to this screen.
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* @param index The index to insert the window into the window list at.
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* @return The window that was added, as a convenience.
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*/
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fun <T: Window> addWindow(window: T, index: Int = _windows.size): T {
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_windows.add(index, window)
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window.screen = this
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window.wasAdded()
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window.resize(width, height)
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return window
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}
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/**
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* Removes the given window from this screen's window list.
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*/
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fun removeWindow(window: Window) {
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_windows.remove(window)
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}
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override fun init() {
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super.init()
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windows.forEach {
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it.resize(width, height)
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}
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}
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override fun render(mouseX: Int, mouseY: Int, delta: Float) {
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if (minecraft != null) {
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// workaround this.minecraft sometimes being null causing a crash
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renderBackground()
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}
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val mouse = Point(mouseX, mouseY)
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windows.forEach {
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it.draw(mouse, delta)
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}
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}
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override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
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val window = windows.lastOrNull()
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val result = window?.mouseClicked(Point(mouseX, mouseY), MouseButton.fromMC(button))
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return if (result == true) {
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RenderHelper.playSound(SoundEvents.UI_BUTTON_CLICK)
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true
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} else {
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false
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}
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}
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override fun mouseDragged(mouseX: Double, mouseY: Double, button: Int, deltaX: Double, deltaY: Double): Boolean {
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val window = windows.lastOrNull()
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val startPoint = Point(mouseX, mouseY)
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val delta = Point(deltaX, deltaY)
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val result = window?.mouseDragged(startPoint, delta, MouseButton.fromMC(button))
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return result == true
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}
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override fun mouseReleased(mouseX: Double, mouseY: Double, button: Int): Boolean {
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val window = windows.lastOrNull()
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val result = window?.mouseReleased(Point(mouseX, mouseY), MouseButton.fromMC(button))
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return result == true
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}
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} |