LevelLoadingScreen.java

net.minecraft.client.gui.screens.LevelLoadingScreen

信息

• 全限定名：net.minecraft.client.gui.screens.LevelLoadingScreen
• 类型：public class
• 包：net.minecraft.client.gui.screens
• 源码路径：src/main/java/net/minecraft/client/gui/screens/LevelLoadingScreen.java
• 起始行号：L30
• 继承：Screen
• 职责：

  TODO

字段/常量

• DOWNLOADING_TERRAIN_TEXT

  • 类型: Component
  • 修饰符: private static final
  • 源码定位: L31
  • 说明:

    TODO

• READY_TO_PLAY_TEXT

  • 类型: Component
  • 修饰符: private static final
  • 源码定位: L32
  • 说明:

    TODO

• NARRATION_DELAY_MS

  • 类型: long
  • 修饰符: private static final
  • 源码定位: L33
  • 说明:

    TODO

• PROGRESS_BAR_WIDTH

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L34
  • 说明:

    TODO

• loadTracker

  • 类型: LevelLoadTracker
  • 修饰符: private
  • 源码定位: L35
  • 说明:

    TODO

• smoothedProgress

  • 类型: float
  • 修饰符: private
  • 源码定位: L36
  • 说明:

    TODO

• lastNarration

  • 类型: long
  • 修饰符: private
  • 源码定位: L37
  • 说明:

    TODO

• reason

  • 类型: LevelLoadingScreen.Reason
  • 修饰符: private
  • 源码定位: L38
  • 说明:

    TODO

• cachedNetherPortalSprite

  • 类型: TextureAtlasSprite
  • 修饰符: private
  • 源码定位: L39
  • 说明:

    TODO

• COLORS

  • 类型: Object2IntMap<ChunkStatus>
  • 修饰符: private static final
  • 源码定位: L40
  • 说明:

    TODO

内部类/嵌套类型

• net.minecraft.client.gui.screens.LevelLoadingScreen.Reason
  • 类型: enum
  • 修饰符: public static
  • 源码定位: L195
  • 说明:

    TODO

构造器

public LevelLoadingScreen(LevelLoadTracker loadTracker, LevelLoadingScreen.Reason reason) @ L56

• 构造器名：LevelLoadingScreen
• 源码定位：L56
• 修饰符：public

参数:

• loadTracker: LevelLoadTracker
• reason: LevelLoadingScreen.Reason

说明:

TODO

方法

下面的方法块按源码顺序生成。

public void update(LevelLoadTracker loadTracker, LevelLoadingScreen.Reason reason) @ L62

• 方法名：update
• 源码定位：L62
• 返回类型：void
• 修饰符：public

参数:

• loadTracker: LevelLoadTracker
• reason: LevelLoadingScreen.Reason

说明:

TODO

public boolean shouldCloseOnEsc() @ L67

• 方法名：shouldCloseOnEsc
• 源码定位：L67
• 返回类型：boolean
• 修饰符：public

参数:

• 无

说明:

TODO

protected boolean shouldNarrateNavigation() @ L72

• 方法名：shouldNarrateNavigation
• 源码定位：L72
• 返回类型：boolean
• 修饰符：protected

参数:

• 无

说明:

TODO

protected void updateNarratedWidget(NarrationElementOutput output) @ L77

• 方法名：updateNarratedWidget
• 源码定位：L77
• 返回类型：void
• 修饰符：protected

参数:

• output: NarrationElementOutput

说明:

TODO

public void tick() @ L84

• 方法名：tick
• 源码定位：L84
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

public void extractRenderState(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) @ L93

• 方法名：extractRenderState
• 源码定位：L93
• 返回类型：void
• 修饰符：public

参数:

• graphics: GuiGraphicsExtractor
• mouseX: int
• mouseY: int
• a: float

说明:

TODO

private void drawProgressBar(GuiGraphicsExtractor graphics, int left, int top, int width, int height, float progress) @ L120

• 方法名：drawProgressBar
• 源码定位：L120
• 返回类型：void
• 修饰符：private

参数:

• graphics: GuiGraphicsExtractor
• left: int
• top: int
• width: int
• height: int
• progress: float

说明:

TODO

public static void extractChunksForRendering(GuiGraphicsExtractor graphics, int xCenter, int yCenter, int size, int margin, ChunkLoadStatusView statusView) @ L125

• 方法名：extractChunksForRendering
• 源码定位：L125
• 返回类型：void
• 修饰符：public static

参数:

• graphics: GuiGraphicsExtractor
• xCenter: int
• yCenter: int
• size: int
• margin: int
• statusView: ChunkLoadStatusView

说明:

TODO

public void extractBackground(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) @ L146

• 方法名：extractBackground
• 源码定位：L146
• 返回类型：void
• 修饰符：public

参数:

• graphics: GuiGraphicsExtractor
• mouseX: int
• mouseY: int
• a: float

说明:

TODO

private TextureAtlasSprite getNetherPortalSprite() @ L170

• 方法名：getNetherPortalSprite
• 源码定位：L170
• 返回类型：TextureAtlasSprite
• 修饰符：private

参数:

• 无

说明:

TODO

public void onClose() @ L183

• 方法名：onClose
• 源码定位：L183
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

public boolean isPauseScreen() @ L189

• 方法名：isPauseScreen
• 源码定位：L189
• 返回类型：boolean
• 修饰符：public

参数:

• 无

说明:

TODO

代码

@OnlyIn(Dist.CLIENT)
public class LevelLoadingScreen extends Screen {
    private static final Component DOWNLOADING_TERRAIN_TEXT = Component.translatable("multiplayer.downloadingTerrain");
    private static final Component READY_TO_PLAY_TEXT = Component.translatable("narrator.ready_to_play");
    private static final long NARRATION_DELAY_MS = 2000L;
    private static final int PROGRESS_BAR_WIDTH = 200;
    private LevelLoadTracker loadTracker;
    private float smoothedProgress;
    private long lastNarration = -1L;
    private LevelLoadingScreen.Reason reason;
    private @Nullable TextureAtlasSprite cachedNetherPortalSprite;
    private static final Object2IntMap<ChunkStatus> COLORS = Util.make(new Object2IntOpenHashMap<>(), map -> {
        map.defaultReturnValue(0);
        map.put(ChunkStatus.EMPTY, 5526612);
        map.put(ChunkStatus.STRUCTURE_STARTS, 10066329);
        map.put(ChunkStatus.STRUCTURE_REFERENCES, 6250897);
        map.put(ChunkStatus.BIOMES, 8434258);
        map.put(ChunkStatus.NOISE, 13750737);
        map.put(ChunkStatus.SURFACE, 7497737);
        map.put(ChunkStatus.CARVERS, 3159410);
        map.put(ChunkStatus.FEATURES, 2213376);
        map.put(ChunkStatus.INITIALIZE_LIGHT, 13421772);
        map.put(ChunkStatus.LIGHT, 16769184);
        map.put(ChunkStatus.SPAWN, 15884384);
        map.put(ChunkStatus.FULL, 16777215);
    });
 
    public LevelLoadingScreen(LevelLoadTracker loadTracker, LevelLoadingScreen.Reason reason) {
        super(GameNarrator.NO_TITLE);
        this.loadTracker = loadTracker;
        this.reason = reason;
    }
 
    public void update(LevelLoadTracker loadTracker, LevelLoadingScreen.Reason reason) {
        this.loadTracker = loadTracker;
        this.reason = reason;
    }
 
    @Override
    public boolean shouldCloseOnEsc() {
        return false;
    }
 
    @Override
    protected boolean shouldNarrateNavigation() {
        return false;
    }
 
    @Override
    protected void updateNarratedWidget(NarrationElementOutput output) {
        if (this.loadTracker.hasProgress()) {
            output.add(NarratedElementType.TITLE, Component.translatable("loading.progress", Mth.floor(this.loadTracker.serverProgress() * 100.0F)));
        }
    }
 
    @Override
    public void tick() {
        super.tick();
        this.smoothedProgress = this.smoothedProgress + (this.loadTracker.serverProgress() - this.smoothedProgress) * 0.2F;
        if (this.loadTracker.isLevelReady()) {
            this.onClose();
        }
    }
 
    @Override
    public void extractRenderState(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) {
        super.extractRenderState(graphics, mouseX, mouseY, a);
        long current = Util.getMillis();
        if (current - this.lastNarration > 2000L) {
            this.lastNarration = current;
            this.triggerImmediateNarration(true);
        }
 
        int xCenter = this.width / 2;
        int yCenter = this.height / 2;
        ChunkLoadStatusView statusView = this.loadTracker.statusView();
        int textTop;
        if (statusView != null) {
            int size = 2;
            extractChunksForRendering(graphics, xCenter, yCenter, 2, 0, statusView);
            textTop = yCenter - statusView.radius() * 2 - 9 * 3;
        } else {
            textTop = yCenter - 50;
        }
 
        graphics.centeredText(this.font, DOWNLOADING_TERRAIN_TEXT, xCenter, textTop, -1);
        if (this.loadTracker.hasProgress()) {
            this.drawProgressBar(graphics, xCenter - 100, textTop + 9 + 3, 200, 2, this.smoothedProgress);
        }
    }
 
    private void drawProgressBar(GuiGraphicsExtractor graphics, int left, int top, int width, int height, float progress) {
        graphics.fill(left, top, left + width, top + height, -16777216);
        graphics.fill(left, top, left + Math.round(progress * width), top + height, -16711936);
    }
 
    public static void extractChunksForRendering(GuiGraphicsExtractor graphics, int xCenter, int yCenter, int size, int margin, ChunkLoadStatusView statusView) {
        int width = size + margin;
        int diameter = statusView.radius() * 2 + 1;
        int totalWidth = diameter * width - margin;
        int xStart = xCenter - totalWidth / 2;
        int yStart = yCenter - totalWidth / 2;
        if (Minecraft.getInstance().debugEntries.isCurrentlyEnabled(DebugScreenEntries.VISUALIZE_CHUNKS_ON_SERVER)) {
            int centerWidth = width / 2 + 1;
            graphics.fill(xCenter - centerWidth, yCenter - centerWidth, xCenter + centerWidth, yCenter + centerWidth, -65536);
        }
 
        for (int x = 0; x < diameter; x++) {
            for (int z = 0; z < diameter; z++) {
                ChunkStatus status = statusView.get(x, z);
                int xCellStart = xStart + x * width;
                int yCellStart = yStart + z * width;
                graphics.fill(xCellStart, yCellStart, xCellStart + size, yCellStart + size, ARGB.opaque(COLORS.getInt(status)));
            }
        }
    }
 
    @Override
    public void extractBackground(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) {
        switch (this.reason) {
            case NETHER_PORTAL:
                graphics.blitSprite(
                    RenderPipelines.GUI_OPAQUE_TEXTURED_BACKGROUND, this.getNetherPortalSprite(), 0, 0, graphics.guiWidth(), graphics.guiHeight()
                );
                break;
            case END_PORTAL:
                TextureManager textureManager = Minecraft.getInstance().getTextureManager();
                AbstractTexture skyTexture = textureManager.getTexture(AbstractEndPortalRenderer.END_SKY_LOCATION);
                AbstractTexture portalTexture = textureManager.getTexture(AbstractEndPortalRenderer.END_PORTAL_LOCATION);
                TextureSetup textureSetup = TextureSetup.doubleTexture(
                    skyTexture.getTextureView(), skyTexture.getSampler(), portalTexture.getTextureView(), portalTexture.getSampler()
                );
                graphics.fill(RenderPipelines.END_PORTAL, textureSetup, 0, 0, this.width, this.height);
                break;
            case OTHER:
                this.extractPanorama(graphics, a);
                this.extractBlurredBackground(graphics);
                this.extractMenuBackground(graphics);
        }
    }
 
    private TextureAtlasSprite getNetherPortalSprite() {
        if (this.cachedNetherPortalSprite != null) {
            return this.cachedNetherPortalSprite;
        } else {
            this.cachedNetherPortalSprite = this.minecraft
                .getModelManager()
                .getBlockStateModelSet()
                .getParticleMaterial(Blocks.NETHER_PORTAL.defaultBlockState())
                .sprite();
            return this.cachedNetherPortalSprite;
        }
    }
 
    @Override
    public void onClose() {
        this.minecraft.getNarrator().saySystemNow(READY_TO_PLAY_TEXT);
        super.onClose();
    }
 
    @Override
    public boolean isPauseScreen() {
        return false;
    }
 
    @OnlyIn(Dist.CLIENT)
    public static enum Reason {
        NETHER_PORTAL,
        END_PORTAL,
        OTHER;
    }
}

引用的其他类

• Minecraft

  • 引用位置: 方法调用
  • 关联成员: Minecraft.getInstance()

• GuiGraphicsExtractor

  • 引用位置: 参数

• NarrationElementOutput

  • 引用位置: 参数

• TextureSetup

  • 引用位置: 方法调用
  • 关联成员: TextureSetup.doubleTexture()

• Screen

  • 引用位置: 继承

• LevelLoadTracker

  • 引用位置: 参数/字段

• TextureAtlasSprite

  • 引用位置: 字段/返回值

• Component

  • 引用位置: 字段/方法调用
  • 关联成员: Component.translatable()

• ChunkLoadStatusView

  • 引用位置: 参数

• ARGB

  • 引用位置: 方法调用
  • 关联成员: ARGB.opaque()

• Mth

  • 引用位置: 方法调用
  • 关联成员: Mth.floor()

• Util

  • 引用位置: 方法调用
  • 关联成员: Util.getMillis(), Util.make()

• ChunkStatus

  • 引用位置: 字段