Custom Wither Cloak (#375)

Co-authored-by: nopo <nopotheemail@gmail.com>
Co-authored-by: IRONM00N <64110067+IRONM00N@users.noreply.github.com>
Co-authored-by: hannibal2 <24389977+hannibal00212@users.noreply.github.com>

1 files changed, 129 insertions, 0 deletions

diff --git a/src/main/java/io/github/moulberry/notenoughupdates/miscfeatures/WitherCloakChanger.java b/src/main/java/io/github/moulberry/notenoughupdates/miscfeatures/WitherCloakChanger.java
new file mode 100644
index 00000000..84ee76c5
--- /dev/null
+++ b/src/main/java/io/github/moulberry/notenoughupdates/miscfeatures/WitherCloakChanger.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2022 NotEnoughUpdates contributors
+ *
+ * This file is part of NotEnoughUpdates.
+ *
+ * NotEnoughUpdates is free software: you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * NotEnoughUpdates is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package io.github.moulberry.notenoughupdates.miscfeatures;
+
+import io.github.moulberry.notenoughupdates.NotEnoughUpdates;
+import io.github.moulberry.notenoughupdates.core.util.render.RenderUtils;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.Vec3;
+import net.minecraftforge.client.event.ClientChatReceivedEvent;
+import net.minecraftforge.client.event.RenderWorldLastEvent;
+import net.minecraftforge.event.world.WorldEvent;
+import net.minecraftforge.fml.common.eventhandler.EventPriority;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL14;
+
+public class WitherCloakChanger {
+	public static boolean isCloakActive = false;
+	public static long lastDeactivate = System.currentTimeMillis();
+
+	@SubscribeEvent(priority = EventPriority.HIGHEST)
+	public void onChatMessage(ClientChatReceivedEvent event) {
+		if (!NotEnoughUpdates.INSTANCE.isOnSkyblock()) return;
+		if (event.message.getUnformattedText().startsWith("Creeper Veil ")) {
+			if (isCloakActive && !event.message.getUnformattedText().equals("Creeper Veil Activated!")) {
+				isCloakActive = false;
+				lastDeactivate = System.currentTimeMillis();
+			} else {
+				isCloakActive = true;
+			}
+		} else if (event.message.getUnformattedText().startsWith("Not enough mana! Creeper Veil De-activated!")) {
+			isCloakActive = false;
+			lastDeactivate = System.currentTimeMillis();
+		}
+	}
+
+	@SubscribeEvent
+	public void onWorldChange(WorldEvent.Unload event) {
+		isCloakActive = false;
+	}
+
+	private static final ResourceLocation witherCloakShield = new ResourceLocation(
+		"notenoughupdates:wither_cloak_shield.png");
+
+	@SubscribeEvent
+	public void onRenderLast(RenderWorldLastEvent event) {
+		if (!NotEnoughUpdates.INSTANCE.isOnSkyblock() || !isCloakActive ||
+			!NotEnoughUpdates.INSTANCE.config.itemOverlays.customWitherCloakToggle) return;
+		Minecraft mc = Minecraft.getMinecraft();
+
+		//CONSTANTS (Other contribs, mess with these as you wish, but you should know I chose these for a reason)
+		final double shieldWidth = 0.8d; //How wide they are
+		final double shieldHeight = 2.0d; //How tall they are
+		final double accuracy =
+			4.0d; //Will be accurate to 1/accuracy of a degree (so updates every 0.25 degrees with an accuracy of 4)
+
+		for (int i = 0; i < NotEnoughUpdates.INSTANCE.config.itemOverlays.customWitherCloakCount; i++) {
+			double angle = (int) (
+				((System.currentTimeMillis() / 30 * NotEnoughUpdates.INSTANCE.config.itemOverlays.customWitherCloakSpeed *
+					-0.5 * accuracy)) % (360 * accuracy)) / accuracy;
+			angle += (360d / NotEnoughUpdates.INSTANCE.config.itemOverlays.customWitherCloakCount) * i;
+			angle %= 360;
+			double posX = mc.thePlayer.posX - (shieldWidth / 2);
+			double posY = mc.thePlayer.posY;
+			double posZ = mc.thePlayer.posZ + NotEnoughUpdates.INSTANCE.config.itemOverlays.customWitherCloakDistance;
+
+			Vec3 topLeft = rotateAboutOrigin(
+				mc.thePlayer.posX,
+				mc.thePlayer.posZ,
+				angle,
+				new Vec3(posX, posY + shieldHeight, posZ)
+			);
+			Vec3 topRight = rotateAboutOrigin(
+				mc.thePlayer.posX,
+				mc.thePlayer.posZ,
+				angle,
+				new Vec3(posX + shieldWidth, posY + shieldHeight, posZ)
+			);
+			Vec3 bottomRight = rotateAboutOrigin(
+				mc.thePlayer.posX,
+				mc.thePlayer.posZ,
+				angle,
+				new Vec3(posX + shieldWidth, posY, posZ)
+			);
+			Vec3 bottomLeft = rotateAboutOrigin(mc.thePlayer.posX, mc.thePlayer.posZ, angle, new Vec3(posX, posY, posZ));
+			RenderUtils.drawFilledQuadWithTexture(
+				topLeft,
+				topRight,
+				bottomRight,
+				bottomLeft, /*NotEnoughUpdates.INSTANCE.config.misc.customWitherCloakTransparency*/
+				1.0f,
+				witherCloakShield
+			);
+		}
+		GL14.glBlendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, GL11.GL_ONE, GL11.GL_ONE_MINUS_SRC_ALPHA);
+		GlStateManager.tryBlendFuncSeparate(
+			GL11.GL_SRC_ALPHA,
+			GL11.GL_ONE_MINUS_SRC_ALPHA,
+			GL11.GL_ONE,
+			GL11.GL_ONE_MINUS_SRC_ALPHA
+		);
+	}
+
+	private static Vec3 rotateAboutOrigin(double originX, double originZ, double angle, Vec3 point) {
+		double a = angle * Math.PI / 180;
+		double newX = originX + (Math.cos(a) * (point.xCoord - originX) + Math.sin(a) * (point.zCoord - originZ));
+		double newZ = originZ + (-Math.sin(a) * (point.xCoord - originX) + Math.cos(a) * (point.zCoord - originZ));
+		return new Vec3(newX, point.yCoord, newZ);
+	}
+}