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Faster Line Of Sight

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ElCeejo 2022-08-13 22:20:21 -07:00
parent 41dba26415
commit a591c7c69c
1 changed files with 16 additions and 6 deletions
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22
mob_meta.lua
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@ -33,11 +33,21 @@ local function vec_raise(v, n)
return {x = v.x, y = v.y + n, z = v.z} return {x = v.x, y = v.y + n, z = v.z}
end end
local function fast_ray_sight(pos1, pos2) local function get_sightline(pos1, pos2)
local ray = minetest.raycast(pos1, pos2, false, false) local dir = vec_dir(pos1, pos2)
for col in pairs(ray) do local dist = vec_dist(pos1, pos2)
if col.type == "node" for i = 0, dist do
and creatura.get_node_def(col.under).walkable then local pos
if dist > 0 then
pos = {
x = pos1.x + dir.x * (i / dist),
y = pos1.y + dir.y * (i / dist),
z = pos1.z + dir.z * (i / dist)
}
else
pos = pos1
end
if creatura.get_node_def(pos).walkable then
return false return false
end end
end end
@ -632,7 +642,7 @@ function mob:get_target(target)
if not pos then return false, false, nil end if not pos then return false, false, nil end
local tpos = target:get_pos() local tpos = target:get_pos()
tpos.y = floor(tpos.y + 0.5) tpos.y = floor(tpos.y + 0.5)
local line_of_sight = fast_ray_sight(pos, tpos) local line_of_sight = get_sightline(pos, tpos)
return true, line_of_sight, tpos return true, line_of_sight, tpos
end end