From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 4 Nov 2021 11:50:35 -0700
Subject: [PATCH] Add hasCollision methods to various places


diff --git a/src/main/java/org/bukkit/Material.java b/src/main/java/org/bukkit/Material.java
index 8b04e0d81c56712057f1fee288b3609ef5718c60..c4f067598a40b0381bc9e601a3809e2683c10407 100644
--- a/src/main/java/org/bukkit/Material.java
+++ b/src/main/java/org/bukkit/Material.java
@@ -4720,6 +4720,21 @@ public enum Material implements Keyed, Translatable, net.kyori.adventure.transla
     }
     // Paper end - item default attributes API
 
+    // Paper start - isCollidable API
+    /**
+     * Checks if this material is collidable.
+     *
+     * @return true if collidable
+     * @throws IllegalArgumentException if {@link #isBlock()} is false
+     */
+    public boolean isCollidable() {
+        if (this.isBlock()) {
+            return this.asBlockType().hasCollision();
+        }
+        throw new IllegalArgumentException(this + " isn't a block type");
+    }
+    // Paper end - isCollidable API
+
     /**
      * Do not use for any reason.
      *
diff --git a/src/main/java/org/bukkit/block/Block.java b/src/main/java/org/bukkit/block/Block.java
index 6ada8c036f1a112f11a9fbc3baf1f79b3f1bfc8e..02361d58ac723d02d93db80a721b27d37f7dc3c1 100644
--- a/src/main/java/org/bukkit/block/Block.java
+++ b/src/main/java/org/bukkit/block/Block.java
@@ -482,6 +482,13 @@ public interface Block extends Metadatable, Translatable, net.kyori.adventure.tr
      * @return true if block is solid
      */
     boolean isSolid();
+
+    /**
+     * Checks if this block is collidable.
+     *
+     * @return true if collidable
+     */
+    boolean isCollidable();
     // Paper end
 
     /**
diff --git a/src/main/java/org/bukkit/block/BlockState.java b/src/main/java/org/bukkit/block/BlockState.java
index fd4a9bdcfb6775dfbdb7492e6c9eb90722d2ecdc..e573e70d9e74e444783a7363e6cdac126124d86d 100644
--- a/src/main/java/org/bukkit/block/BlockState.java
+++ b/src/main/java/org/bukkit/block/BlockState.java
@@ -245,4 +245,13 @@ public interface BlockState extends Metadatable {
      *         or 'virtual' (e.g. on an itemstack)
      */
     boolean isPlaced();
+
+    // Paper start
+    /**
+     * Checks if this block state is collidable.
+     *
+     * @return true if collidable
+     */
+    boolean isCollidable();
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/block/BlockType.java b/src/main/java/org/bukkit/block/BlockType.java
index a08c52949af1d2416ecb089fc559db2e3b29105c..8f430a4067fc722ebfbca846cccded4fb0a3a4e5 100644
--- a/src/main/java/org/bukkit/block/BlockType.java
+++ b/src/main/java/org/bukkit/block/BlockType.java
@@ -3500,4 +3500,13 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
     @Override
     @NotNull String getTranslationKey();
     // Paper end - add Translatable
+
+    // Paper start - hasCollision API
+    /**
+     * Checks if this block type has collision.
+     * <p>
+     * @return false if this block never has collision, true if it <b>might</b> have collision
+     */
+    boolean hasCollision();
+    // Paper end - hasCollision API
 }