60 lines
2.1 KiB
Java
60 lines
2.1 KiB
Java
package net.minecraft.client.gui.screens.inventory;
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import java.util.List;
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import net.fabricmc.api.EnvType;
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import net.fabricmc.api.Environment;
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import net.minecraft.client.gui.GuiGraphics;
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import net.minecraft.client.renderer.RenderPipelines;
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import net.minecraft.resources.ResourceLocation;
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import net.minecraft.util.ARGB;
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import net.minecraft.world.inventory.AbstractContainerMenu;
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import net.minecraft.world.inventory.Slot;
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@Environment(EnvType.CLIENT)
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public class CyclingSlotBackground {
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private static final int ICON_CHANGE_TICK_RATE = 30;
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private static final int ICON_SIZE = 16;
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private static final int ICON_TRANSITION_TICK_DURATION = 4;
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private final int slotIndex;
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private List<ResourceLocation> icons = List.of();
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private int tick;
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private int iconIndex;
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public CyclingSlotBackground(int slotIndex) {
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this.slotIndex = slotIndex;
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}
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public void tick(List<ResourceLocation> icons) {
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if (!this.icons.equals(icons)) {
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this.icons = icons;
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this.iconIndex = 0;
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}
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if (!this.icons.isEmpty() && ++this.tick % 30 == 0) {
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this.iconIndex = (this.iconIndex + 1) % this.icons.size();
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}
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}
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public void render(AbstractContainerMenu containerMenu, GuiGraphics guiGraphics, float partialTick, int x, int y) {
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Slot slot = containerMenu.getSlot(this.slotIndex);
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if (!this.icons.isEmpty() && !slot.hasItem()) {
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boolean bl = this.icons.size() > 1 && this.tick >= 30;
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float f = bl ? this.getIconTransitionTransparency(partialTick) : 1.0F;
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if (f < 1.0F) {
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int i = Math.floorMod(this.iconIndex - 1, this.icons.size());
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this.renderIcon(slot, (ResourceLocation)this.icons.get(i), 1.0F - f, guiGraphics, x, y);
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}
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this.renderIcon(slot, (ResourceLocation)this.icons.get(this.iconIndex), f, guiGraphics, x, y);
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}
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}
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private void renderIcon(Slot slot, ResourceLocation icon, float alpha, GuiGraphics guiGraphics, int x, int y) {
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guiGraphics.blitSprite(RenderPipelines.GUI_TEXTURED, icon, x + slot.x, y + slot.y, 16, 16, ARGB.white(alpha));
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}
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private float getIconTransitionTransparency(float partialTick) {
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float f = this.tick % 30 + partialTick;
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return Math.min(f, 4.0F) / 4.0F;
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}
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}
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