Skip to content

Precise identification of pointed node #3

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
RichardTry wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Precise identification of pointed node #3

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
30 changes: 12 additions & 18 deletions init.lua
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -88,24 +88,18 @@ minetest.register_chatcommand("witt", { -- Command to turn witt on/off
})

function get_looking_node(player) -- Return the node the given player is looking at or nil
local lookat
for i = 0, 10 do -- 10 is the maximum distance you can point to things in creative mode by default
local lookvector = -- This variable will store what node we might be looking at
vector.add( -- This add function corrects for the players approximate height
vector.add( -- This add function applies the camera's position to the look vector
vector.multiply( -- This multiply function adjusts the distance from the camera by the iteration of the loop we're in
player:get_look_dir(),
i -- Goes from 0 to 10
),
player:get_pos()
),
vector.new(0, 1.5, 0)
)
lookat = minetest.get_node_or_nil( -- This actually gets the node we might be looking at
lookvector
) or lookat
if lookat ~= nil and lookat.name ~= "air" and lookat.name ~= "walking_light:light" then break else lookat = nil end -- If we *are* looking at something, stop the loop and continue
end
local player_pos = player:get_pos()
player_pos.y = player_pos.y + player:get_properties().eye_height
local raycast = minetest.raycast(player_pos, vector.add(player_pos, vector.multiply(player:get_look_dir(), 20)), false)
local pointed = raycast:next()
local lookat = nil
--
-- You can use minetest.line_of_sight which seems faster than raycast, but not precise while looking through nodeboxes.
--
--local no_nodes, lookat_pos = minetest.line_of_sight(player_pos, vector.add(player_pos, vector.multiply(player:get_look_dir(), 20)))
--if not no_nodes then lookat = minetest.get_node(lookat_pos)
--
if pointed and pointed.type == "node" then lookat = minetest.get_node(pointed.under) end
return lookat
end

Expand Down