Add AoE warning plugin

runelite-api/src/main/java/net/runelite/api/Perspective.java

@@ -244,13 +244,41 @@ public class Perspective
 	 */
 	public static Polygon getCanvasTilePoly(Client client, Point localLocation)
 	{
-		int plane = client.getPlane();
+		return getCanvasTileAreaPoly(client, localLocation, 1);
-		int halfTile = Perspective.LOCAL_TILE_SIZE / 2;
+	}
 
-		Point p1 = Perspective.worldToCanvas(client, localLocation.getX() - halfTile, localLocation.getY() - halfTile, plane);
+	/**
-		Point p2 = Perspective.worldToCanvas(client, localLocation.getX() - halfTile, localLocation.getY() + halfTile, plane);
+	 * Returns a polygon representing an area.
-		Point p3 = Perspective.worldToCanvas(client, localLocation.getX() + halfTile, localLocation.getY() + halfTile, plane);
+	 *
-		Point p4 = Perspective.worldToCanvas(client, localLocation.getX() + halfTile, localLocation.getY() - halfTile, plane);
+	 * @param client
+	 * @param localLocation Center location of the AoE
+	 * @param size size of the area. Ex. Lizardman Shaman AoE is a 3x3, so
+	 * size = 3
+	 * @return a polygon representing the tiles in the area
+	 */
+	public static Polygon getCanvasTileAreaPoly(Client client, Point localLocation, int size)
+	{
+		int plane = client.getPlane();
+		int halfTile = LOCAL_TILE_SIZE / 2;
+
+		// If the size is 5, we need to shift it up and left 2 units, then expand by 5 units to make a 5x5
+		int aoeSize = size / 2;
+
+		// Shift over one half tile as localLocation is the center point of the tile, and then shift the area size
+		Point topLeft = new Point(localLocation.getX() - (aoeSize * LOCAL_TILE_SIZE) - halfTile,
+			localLocation.getY() - (aoeSize * LOCAL_TILE_SIZE) - halfTile);
+		// expand by size
+		Point bottomRight = new Point(topLeft.getX() + size * LOCAL_TILE_SIZE,
+			topLeft.getY() + size * LOCAL_TILE_SIZE);
+		// Take the x of top left and the y of bottom right to create bottom left
+		Point bottomLeft = new Point(topLeft.getX(), bottomRight.getY());
+		// Similarly for top right
+		Point topRight = new Point(bottomRight.getX(), topLeft.getY());
+
+		Point p1 = worldToCanvas(client, topLeft.getX(), topLeft.getY(), plane);
+		Point p2 = worldToCanvas(client, topRight.getX(), topRight.getY(), plane);
+		Point p3 = worldToCanvas(client, bottomRight.getX(), bottomRight.getY(), plane);
+		Point p4 = worldToCanvas(client, bottomLeft.getX(), bottomLeft.getY(), plane);
 
 		if (p1 == null || p2 == null || p3 == null || p4 == null)
 		{

runelite-api/src/main/java/net/runelite/api/ProjectileID.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.api;
+
+public class ProjectileID
+{
+	public static final int LIZARDMAN_SHAMAN_AOE = 1293;
+	public static final int ICE_DEMON_RANGED_AOE = 1324;
+	public static final int ICE_DEMON_ICE_BARRAGE_AOE = 366;
+	public static final int VASA_AWAKEN_AOE = 1327;
+	public static final int VASA_RANGED_AOE = 1329;
+	public static final int TEKTON_METEOR_AOE = 660;
+}

runelite-client/src/main/java/net/runelite/client/callback/Hooks.java

@@ -34,6 +34,8 @@ import net.runelite.api.MainBufferProvider;
 import net.runelite.api.MenuAction;
 import net.runelite.api.MessageNode;
 import net.runelite.api.PacketBuffer;
+import net.runelite.api.Point;
+import net.runelite.api.Projectile;
 import net.runelite.api.Skill;
 import net.runelite.client.RuneLite;
 import net.runelite.client.events.*;
@@ -186,7 +188,7 @@ public class Hooks
 	public static void menuActionHook(int var0, int widgetId, int menuAction, int id, String menuOption, String menuTarget, int var6, int var7)
 	{
 		/* Along the way, the RuneScape client may change a menuAction by incrementing it with 2000.
-                 * I have no idea why, but it does. Their code contains the same conditional statement.
+		 * I have no idea why, but it does. Their code contains the same conditional statement.
 		 */
 		if (menuAction >= 2000)
 		{
@@ -231,6 +233,27 @@ public class Hooks
 		eventBus.post(chatMessage);
 	}
 
+	/**
+	 * Called when a projectile is set to move towards a point. For
+	 * projectiles that target the ground, like AoE projectiles from
+	 * Lizardman Shamans, this is only called once
+	 *
+	 * @param projectile The projectile being moved
+	 * @param targetX X position of where the projectile is being moved to
+	 * @param targetY Y position of where the projectile is being moved to
+	 * @param targetZ Z position of where the projectile is being moved to
+	 * @param cycle
+	 */
+	public static void projectileMoved(Projectile projectile, int targetX, int targetY, int targetZ, int cycle)
+	{
+		Point position = new Point(targetX, targetY);
+		ProjectileMoved projectileMoved = new ProjectileMoved();
+		projectileMoved.setProjectile(projectile);
+		projectileMoved.setPosition(position);
+		projectileMoved.setPlane(targetZ);
+		eventBus.post(projectileMoved);
+	}
+
 	public static void setMessage(MessageNode messageNode, int type, String name, String sender, String value)
 	{
 		// Hook is fired prior to actually setting these on the MessageNode, so send them

runelite-client/src/main/java/net/runelite/client/events/ProjectileMoved.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.events;
+
+import net.runelite.api.Point;
+import net.runelite.api.Projectile;
+
+public class ProjectileMoved
+{
+	private Projectile projectile;
+	private Point position;
+	private int plane;
+
+	public Projectile getProjectile()
+	{
+		return projectile;
+	}
+
+	public void setProjectile(Projectile projectile)
+	{
+		this.projectile = projectile;
+	}
+
+	public Point getPosition()
+	{
+		return position;
+	}
+
+	public void setPosition(Point position)
+	{
+		this.position = position;
+	}
+
+	public int getPlane()
+	{
+		return plane;
+	}
+
+	public void setPlane(int plane)
+	{
+		this.plane = plane;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/aoewarnings/AoeProjectile.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.aoewarnings;
+
+import java.time.Instant;
+import net.runelite.api.Point;
+
+public class AoeProjectile
+{
+	private final Instant startTime;
+	private final Point targetPoint;
+	private final AoeProjectileInfo aoeProjectileInfo;
+
+	public AoeProjectile(Instant startTime, Point targetPoint, AoeProjectileInfo aoeProjectileInfo)
+	{
+		this.startTime = startTime;
+		this.targetPoint = targetPoint;
+		this.aoeProjectileInfo = aoeProjectileInfo;
+	}
+
+	public Instant getStartTime()
+	{
+		return startTime;
+	}
+
+	public Point getTargetPoint()
+	{
+		return targetPoint;
+	}
+
+	public AoeProjectileInfo getAoeProjectileInfo()
+	{
+		return aoeProjectileInfo;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/aoewarnings/AoeProjectileInfo.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.aoewarnings;
+
+import java.time.Duration;
+import net.runelite.api.ProjectileID;
+
+public enum AoeProjectileInfo
+{
+	LIZARDMAN_SHAMAN_AOE(ProjectileID.LIZARDMAN_SHAMAN_AOE, 3000, 3),
+	ICE_DEMON_RANGED_AOE(ProjectileID.ICE_DEMON_RANGED_AOE, 3000, 3),
+	/**
+	 * When you don't have pray range on ice demon does an ice barrage
+	 */
+	ICE_DEMON_ICE_BARRAGE_AOE(ProjectileID.ICE_DEMON_ICE_BARRAGE_AOE, 3000, 3),
+	/**
+	 * The AOE when vasa first starts
+	 */
+	VASA_AWAKEN_AOE(ProjectileID.VASA_AWAKEN_AOE, 4500, 3),
+	VASA_RANGED_AOE(ProjectileID.VASA_RANGED_AOE, 3000, 3),
+	TEKTON_METEOR_AOE(ProjectileID.TEKTON_METEOR_AOE, 4000, 3);
+
+	/**
+	 * The id of the projectile to trigger this AoE warning
+	 */
+	private final int id;
+
+	/**
+	 * How long the indicator should last for this AoE warning This might
+	 * need to be a bit longer than the projectile actually takes to land as
+	 * there is a fade effect on the warning
+	 */
+	private final Duration lifeTime;
+
+	/**
+	 * The size of the splash radius of the AoE warning Ex. Lizardman shaman
+	 * AoE is a 3x3, so aoeSize = 3
+	 */
+	private final int aoeSize;
+
+	AoeProjectileInfo(int id, int lifeTimeMillis, int aoeSize)
+	{
+		this.id = id;
+		this.lifeTime = Duration.ofMillis(lifeTimeMillis);
+		this.aoeSize = aoeSize;
+	}
+
+	public Duration getLifeTime()
+	{
+		return lifeTime;
+	}
+
+	public int getId()
+	{
+		return id;
+	}
+
+	public int getAoeSize()
+	{
+		return aoeSize;
+	}
+
+	public static AoeProjectileInfo getById(int id)
+	{
+		for (AoeProjectileInfo aoeProjectileInfo : values())
+		{
+			if (id == aoeProjectileInfo.getId())
+			{
+				return aoeProjectileInfo;
+			}
+		}
+		return null;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/aoewarnings/AoeWarningConfig.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.aoewarnings;
+
+import net.runelite.client.config.Config;
+import net.runelite.client.config.ConfigGroup;
+import net.runelite.client.config.ConfigItem;
+
+@ConfigGroup(
+	keyName = "aoewarning",
+	name = "AoE Projectile Warnings",
+	description = "Configuration for the AoE Projectile Warnings plugin"
+)
+public interface AoeWarningConfig extends Config
+{
+	@ConfigItem(
+		keyName = "enabled",
+		name = "AoE Warnings Enabled",
+		description = "Configures whether or not AoE Projectile Warnings plugin is displayed"
+	)
+	default boolean enabled()
+	{
+		return true;
+	}
+
+	@ConfigItem(
+		keyName = "lizardmanaoe",
+		name = "Lizardman Shamans",
+		description = "Configures whether or not AoE Projectile Warnings for Lizardman Shamans is displayed"
+	)
+	default boolean isShamansEnabled()
+	{
+		return true;
+	}
+
+	@ConfigItem(
+		keyName = "icedemon",
+		name = "Ice Demon",
+		description = "Configures whether or not AoE Projectile Warnings for Ice Demon is displayed"
+	)
+	default boolean isIceDemonEnabled()
+	{
+		return true;
+	}
+
+	@ConfigItem(
+		keyName = "vasa",
+		name = "Vasa",
+		description = "Configures whether or not AoE Projectile Warnings for Vasa is displayed"
+	)
+	default boolean isVasaEnabled()
+	{
+		return true;
+	}
+
+	@ConfigItem(
+		keyName = "tekton",
+		name = "Tekton",
+		description = "Configures whether or not AoE Projectile Warnings for Tekton is displayed"
+	)
+	default boolean isTektonEnabled()
+	{
+		return true;
+	}
+
+	@ConfigItem(
+		keyName = "outline",
+		name = "Display Outline",
+		description = "Configures whether or not AoE Projectile Warnings have an outline"
+	)
+	default boolean isOutlineEnabled()
+	{
+		return true;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/aoewarnings/AoeWarningOverlay.java

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.aoewarnings;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics2D;
+import java.awt.Polygon;
+import java.time.Instant;
+import java.util.Iterator;
+import java.util.Map;
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+import net.runelite.api.Client;
+import net.runelite.api.GameState;
+import net.runelite.api.Perspective;
+import net.runelite.api.Projectile;
+import net.runelite.client.ui.overlay.Overlay;
+import net.runelite.client.ui.overlay.OverlayPosition;
+
+public class AoeWarningOverlay extends Overlay
+{
+	private static final int FILL_START_ALPHA = 25;
+	private static final int OUTLINE_START_ALPHA = 255;
+
+	private final Client client;
+	private final AoeWarningPlugin plugin;
+	private final AoeWarningConfig config;
+
+	@Inject
+	public AoeWarningOverlay(@Nullable Client client, AoeWarningPlugin plugin, AoeWarningConfig config)
+	{
+		super(OverlayPosition.DYNAMIC);
+		this.client = client;
+		this.plugin = plugin;
+		this.config = config;
+	}
+
+	@Override
+	public Dimension render(Graphics2D graphics)
+	{
+		if (client.getGameState() != GameState.LOGGED_IN || !config.enabled())
+		{
+			return null;
+		}
+
+		Instant now = Instant.now();
+		Map<Projectile, AoeProjectile> projectiles = plugin.getProjectiles();
+		for (Iterator<AoeProjectile> it = projectiles.values().iterator(); it.hasNext();)
+		{
+			AoeProjectile aoeProjectile = it.next();
+
+			if (now.isAfter(aoeProjectile.getStartTime().plus(aoeProjectile.getAoeProjectileInfo().getLifeTime())))
+			{
+				it.remove();
+				continue;
+			}
+
+			Polygon tilePoly = Perspective.getCanvasTileAreaPoly(client, aoeProjectile.getTargetPoint(), aoeProjectile.getAoeProjectileInfo().getAoeSize());
+			if (tilePoly == null)
+			{
+				continue;
+			}
+
+			// how far through the projectiles lifetime between 0-1.
+			double progress = (System.currentTimeMillis() - aoeProjectile.getStartTime().toEpochMilli()) / (double) aoeProjectile.getAoeProjectileInfo().getLifeTime().toMillis();
+
+			int fillAlpha = (int) ((1 - progress) * FILL_START_ALPHA);//alpha drop off over lifetime
+			int outlineAlpha = (int) ((1 - progress) * OUTLINE_START_ALPHA);
+
+			if (fillAlpha < 0)
+			{
+				fillAlpha = 0;
+			}
+			if (outlineAlpha < 0)
+			{
+				outlineAlpha = 0;
+			}
+
+			if (fillAlpha > 255)
+			{
+				fillAlpha = 255;
+			}
+			if (outlineAlpha > 255)
+			{
+				outlineAlpha = 255;//Make sure we don't pass in an invalid alpha
+			}
+
+			if (config.isOutlineEnabled())
+			{
+				graphics.setColor(new Color(255, 0, 0, outlineAlpha));
+				graphics.drawPolygon(tilePoly);
+			}
+
+			graphics.setColor(new Color(255, 0, 0, fillAlpha));
+			graphics.fillPolygon(tilePoly);
+		}
+		return null;
+	}
+}

runelite-client/src/main/java/net/runelite/client/plugins/aoewarnings/AoeWarningPlugin.java

@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.client.plugins.aoewarnings;
+
+import com.google.common.eventbus.Subscribe;
+import com.google.inject.Binder;
+import com.google.inject.Provides;
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+import javax.inject.Inject;
+import net.runelite.api.Point;
+import net.runelite.api.Projectile;
+import net.runelite.client.config.ConfigManager;
+import net.runelite.client.events.ProjectileMoved;
+import net.runelite.client.plugins.Plugin;
+import net.runelite.client.plugins.PluginDescriptor;
+import net.runelite.client.ui.overlay.Overlay;
+
+@PluginDescriptor(
+	name = "AoE projectile warning plugin"
+)
+public class AoeWarningPlugin extends Plugin
+{
+	@Inject
+	AoeWarningOverlay overlay;
+
+	@Inject
+	AoeWarningConfig config;
+
+	private final Map<Projectile, AoeProjectile> projectiles = new HashMap<>();
+
+	@Override
+	public void configure(Binder binder)
+	{
+		binder.bind(AoeWarningOverlay.class);
+	}
+
+	@Provides
+	AoeWarningConfig getConfig(ConfigManager configManager)
+	{
+		return configManager.getConfig(AoeWarningConfig.class);
+	}
+
+	@Override
+	public Overlay getOverlay()
+	{
+		return overlay;
+	}
+
+	public Map<Projectile, AoeProjectile> getProjectiles()
+	{
+		return projectiles;
+	}
+
+	/**
+	 * Called when a projectile is set to move towards a point. For
+	 * projectiles that target the ground, like AoE projectiles from
+	 * Lizardman Shamans, this is only called once
+	 *
+	 * @param event Projectile moved event
+	 */
+	@Subscribe
+	public void onProjectileMoved(ProjectileMoved event)
+	{
+		Projectile projectile = event.getProjectile();
+
+		// AoE projectiles do not target anything
+		if (projectile.getInteracting() != null)
+		{
+			return;
+		}
+
+		int projectileId = projectile.getId();
+		AoeProjectileInfo aoeProjectileInfo = AoeProjectileInfo.getById(projectileId);
+		if (aoeProjectileInfo != null && isConfigEnabledForProjectileId(projectileId))
+		{
+			Point targetPoint = event.getPosition();
+			AoeProjectile aoeProjectile = new AoeProjectile(Instant.now(), targetPoint, aoeProjectileInfo);
+			projectiles.put(projectile, aoeProjectile);
+		}
+	}
+
+	private boolean isConfigEnabledForProjectileId(int projectileId)
+	{
+		AoeProjectileInfo projectileInfo = AoeProjectileInfo.getById(projectileId);
+		if (projectileInfo == null)
+		{
+			return false;
+		}
+
+		switch (projectileInfo)
+		{
+			case LIZARDMAN_SHAMAN_AOE:
+				return config.isShamansEnabled();
+			case ICE_DEMON_RANGED_AOE:
+			case ICE_DEMON_ICE_BARRAGE_AOE:
+				return config.isIceDemonEnabled();
+			case VASA_AWAKEN_AOE:
+			case VASA_RANGED_AOE:
+				return config.isVasaEnabled();
+			case TEKTON_METEOR_AOE:
+				return config.isTektonEnabled();
+		}
+
+		return false;
+	}
+}