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Event for when an object is within Player Reach (Reactive Crosshair mod idea)


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I've been hunting through the class files and honestly have probably looked past it a thousand times, but where is the event for when something is within the player's reach (when if it's a block it puts the frame around it)? I'm trying to make a reactive crosshair mod that will change the crosshair based on what you are aiming at and what item you are wielding (pickaxe icon, axe icon, sword icon when mobs are within reach, hammer when holding and aiming at a block, hand icon when aiming at a usable object like a button, door or lever, and a looting icon when aiming at chests). Help would be much appreciated!

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You can use


to get a MovingObjectPosition which has the block coords of the block hit.

Don't PM me with questions. They will be ignored! Make a thread on the appropriate board for support.


1.12 -> 1.13 primer by williewillus.


1.7.10 and older versions of Minecraft are no longer supported due to it's age! Update to the latest version for support.



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Since your code will be client side for the rendering, you can use Minecraft.getMinecraft().objectMouseOver, which is the current MovingObjectPosition as determined by the EntityRenderer. Use it during RenderGameOverlayEvent.Pre for event.type==ElementType.CROSSHAIRS, and you won't have to do any calculations yourself.

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