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Fix ender pearl regression causing player to sink into ground again

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This commit is contained in:
Wuzzy 2017-05-26 18:33:30 +02:00
parent 16d018b406
commit 73cd5498fb
1 changed files with 27 additions and 14 deletions
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41
mods/ITEMS/mcl_throwing/throwable.lua
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@ -184,35 +184,36 @@ local pearl_on_step = function(self, dtime)
-- First determine good teleport position
local dir = {x=0, y=0, z=0}
local v = self.object:getvelocity()
if walkable then
local vc = table.copy(v) -- vector for calculating
-- Node is walkable, we have to find a place somewhere outside of that node
local v = self.object:getvelocity()
v = vector.normalize(v)
vc = vector.normalize(vc)
-- Zero-out the two axes with a lower absolute value than
-- the axis with the strongest force
local lv, ld
lv, ld = math.abs(v.y), "y"
if math.abs(v.x) > lv then
lv, ld = math.abs(v.x), "x"
lv, ld = math.abs(vc.y), "y"
if math.abs(vc.x) > lv then
lv, ld = math.abs(vc.x), "x"
end
if math.abs(v.z) > lv then
lv, ld = math.abs(v.z), "z"
if math.abs(vc.z) > lv then
lv, ld = math.abs(vc.z), "z"
end
if ld ~= "x" then v.x = 0 end
if ld ~= "y" then v.y = 0 end
if ld ~= "z" then v.z = 0 end
if ld ~= "x" then vc.x = 0 end
if ld ~= "y" then vc.y = 0 end
if ld ~= "z" then vc.z = 0 end
-- Final tweaks to the teleporting pos, based on direction
-- Impact from the side
dir.x = v.x * -1
dir.z = v.z * -1
dir.x = vc.x * -1
dir.z = vc.z * -1
-- Special case: top or bottom of node
if v.y > 0 then
if vc.y > 0 then
-- We need more space when impact is from below
dir.y = -2.3
elseif v.y < 0 then
elseif vc.y < 0 then
-- Standing on top
dir.y = 0.5
end
@ -221,6 +222,18 @@ local pearl_on_step = function(self, dtime)
-- Final teleportation position
local telepos = vector.add(pos, dir)
local telenode = minetest.get_node(telepos)
--[[ It may be possible that telepos is walkable due to the algorithm.
Especially when the ender pearl is faster horizontally than vertical.
This applies final fixing, just to be sure we're not in a walkable node ]]
if minetest.registered_nodes[telenode.name].walkable then
if v.y < 0 then
telepos.y = telepos.y + 0.5
else
telepos.y = telepos.y - 2.3
end
end
player:setpos(telepos)
player:set_hp(player:get_hp() - 5)