MinecraftForge/MinecraftForge — pull request #1256 by alucas (2014-07-27 20:47:37+00:00)
Title: Fix onEntityWalking call on the wrong block

Check hitbox of the block under the player feet to determine which block he his walking on.

Minecraft use a hardcoded check on the Block renderType() to determine if the block under the player feed is a Wall/Fence/FenceGate. This patch complete that behavior for block with different renderType but with the same property (hitbox maxY > 1).