Minetest jumpdrive mod patch to avoid falling through floor

jumpdrive-no_fall_through.patch

From 4e9c6e5822f884c0d113a06fee5507b274fddc8e Mon Sep 17 00:00:00 2001
From: techniX <sergei.mozhaisky@gmail.com>
Date: Sat, 14 Dec 2019 12:21:55 +0200
Subject: [PATCH] No fall through while jumping: - temporary disable gravity
 and player movement - re-enable gravity and player movement 3 sec after jump
 - sometimes player still falls through, so place player into right position 3
 sec after jump - disallow jump if gravity is not enabled yet - i.e.
 immediately after jump

---
 common.lua | 5 +++++
 move.lua   | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/common.lua b/common.lua
index 924cfec..1946e38 100644
--- a/common.lua
+++ b/common.lua
@@ -36,6 +36,11 @@ jumpdrive.simulate_jump = function(pos, player, show_marker)
 		return false, "Error: mapgen was active in this area, please try again later for your own safety!"
 	end
 
+
+	if player ~= nil and player:get_physics_override().gravity == 0 then
+		return false, "Error: jump is not finished!"
+	end
+
 	local meta = minetest.get_meta(pos)
 	local radius = jumpdrive.get_radius(pos)
 	local distance = vector.distance(pos, targetPos)
diff --git a/move.lua b/move.lua
index be51f36..f773133 100644
--- a/move.lua
+++ b/move.lua
@@ -107,7 +107,13 @@ jumpdrive.move = function(source_pos1, source_pos2, target_pos1, target_pos2)
 		if xMatch and yMatch and zMatch and player:is_player() then
 			minetest.log("action", "[jumpdrive] moving player: " .. player:get_player_name())
 			local new_player_pos = vector.add(playerPos, delta_vector)
+			local op = player:get_physics_override()
+			player:set_physics_override({speed = 0, gravity = 0, jump = 0})
 			player:set_pos( new_player_pos );
+			minetest.after(3, function(o, pos)
+				player:set_physics_override({gravity = o.gravity, jump = o.jump, speed = o.speed})
+				player:set_pos( pos );
+			end, op, new_player_pos)
 		end
 	end
 
-- 
2.17.1.windows.2