Make water push players

mods/player_mechanics/flowing.lua

@@ -0,0 +1,70 @@
+local
+minetest,vector,math,pairs
+=
+minetest,vector,math,pairs
+
+local pool = {}
+
+local name
+local pos
+local node
+local node_above
+local goalx
+local goalz
+local currentvel
+local level
+local level2
+local nodename
+local acceleration
+found = false
+local function flow(player)
+    name = player:get_player_name()
+    pos = player:get_pos()
+    pos.y = pos.y + player:get_properties().collisionbox[2]
+    pos = vector.round(pos)
+    node = minetest.get_node(pos).name
+    node_above = minetest.get_node(vector.new(pos.x,pos.y+1,pos.z)).name
+    goalx = 0
+    goalz = 0
+    found = false
+    if node == "main:waterflow" then
+        currentvel = player:get_player_velocity()
+        level = minetest.get_node_level(pos)
+        for x = -1,1 do
+            for z = -1,1 do
+                if found == false then
+                    nodename = minetest.get_node(vector.new(pos.x+x,pos.y,pos.z+z)).name
+                    level2 = minetest.get_node_level(vector.new(pos.x+x,pos.y,pos.z+z))
+                    if level2 > level and nodename == "main:waterflow" or nodename == "main:water" then
+                        goalx = -x
+                        goalz = -z
+                        --diagonal flow
+                        if goalx ~= 0 and goalz ~= 0 then
+                            found = true
+                        end
+                    end
+                end
+            end
+        end
+        --only add velocity if there is one
+        --else this stops the player
+        if goalx ~= 0 and goalz ~= 0 then
+            acceleration = vector.new(goalx/3,0,goalz/3)
+            player:add_player_velocity(acceleration)
+        elseif goalx ~= 0 or goalz ~= 0 then
+            acceleration = vector.new(goalx/2.25,0,goalz/2.25)
+            player:add_player_velocity(acceleration)
+        end
+    end
+end
+
+local legs
+local flowing
+minetest.register_globalstep(function()
+    for _,player in ipairs(minetest.get_connected_players()) do
+        legs = minetest.get_item_group(get_player_legs_env(player),"water") > 0
+        if legs then
+            flow(player)
+        end
+    end
+end)

mods/player_mechanics/init.lua

@@ -3,3 +3,4 @@ dofile(path.."/version_info.lua")
 dofile(path.."/player_interaction.lua")
 dofile(path.."/player_mechanics.lua")
 dofile(path.."/eating_mechanics.lua")
+dofile(path.."/flowing.lua")