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More precice parachute collision checks b4 spawn

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Wuzzy 2022-08-09 14:32:56 +02:00
parent 59233a2578
commit 94a1054de7
1 changed files with 26 additions and 12 deletions
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38
mods/parachute/init.lua
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@ -54,22 +54,36 @@ local check_parachute_spawnable = function(pos, player)
-- definitely won't overlap with nodes or objects when
-- spawned.
local tiny = 0.01
local side = CBOX_SIDE + tiny
local offsets = {
-- for testing the middle
{ 0, 0 },
-- for testing the 4 edges of the collisionbox
{ -side, -side },
{ -side, side },
{ side, -side },
{ side, side },
}
local y_extend = 1 -- Check a little bit below the potential collisionbox as well
-- so the parachute isn't spawned when standing on the ground
local side = CBOX_SIDE + tiny
local bottom = CBOX_BOTTOM - y_extend - tiny
local top = CBOX_TOP + tiny
local offsets = {
-- Xmin, Ymin, Zmin, Xmax, Ymax, Zmax
-- for testing the middle
{ 0, bottom, 0, 0, top, 0 },
-- for testing the 4 vertical edges of the collisionbox
{ -side, bottom, -side, -side, top, -side },
{ -side, bottom, side, -side, top, side },
{ side, bottom, -side, side, top, -side },
{ side, bottom, side, side, top, side },
-- bottom edges
{ -side, bottom, -side, -side, bottom, side }, -- 00 --> 01
{ -side, bottom, -side, side, bottom, -side }, -- 00 --> 10
{ side, bottom, -side, side, bottom, side }, -- 10 --> 11
{ -side, bottom, side, side, bottom, side }, -- 01 --> 11
-- top edges
{ -side, top, -side, -side, top, side }, -- 00 --> 01
{ -side, top, -side, side, top, -side }, -- 00 --> 10
{ side, top, -side, side, top, side }, -- 10 --> 11
{ -side, top, side, side, top, side }, -- 01 --> 11
}
-- Finally check the rays
for i=1, #offsets do
local off_start = vector.new(offsets[i][1], CBOX_BOTTOM - y_extend - tiny, offsets[i][2])
local off_end = vector.new(offsets[i][1], CBOX_TOP + tiny, offsets[i][2])
local off_start = vector.new(offsets[i][1], offsets[i][2], offsets[i][3])
local off_end = vector.new(offsets[i][4], offsets[i][5], offsets[i][6])
local ray_start = vector.add(pos, off_start)
local ray_end = vector.add(pos, off_end)
local ray = minetest.raycast(ray_start, ray_end, true, true)