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Implement slimeblock piston launchers: 

Adds the mechanic of launching entities standing on, or in
front of slimeblocks; which are attached to, and pushed by pistons.
This commit is contained in:
MysticTempest 2022-07-21 02:30:30 -05:00
parent 7d57b3448a
commit 2fd9e2ad53
1 changed files with 32 additions and 4 deletions
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36
mods/ITEMS/REDSTONE/mesecons_mvps/init.lua
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@ -1,3 +1,4 @@
local GRAVITY = tonumber(minetest.settings:get("movement_gravity"))
local table = table
--register stoppers for movestones/pistons
@ -328,17 +329,17 @@ function mesecon.mvps_move_objects(pos, dir, nodestack)
-- Move object at tip of stack, pushpos is position at tip of stack
local pushpos = vector.add(pos, vector.multiply(dir, #nodestack))
local objects = minetest.get_objects_inside_radius(pushpos, 1)
local objects = minetest.get_objects_inside_radius(pushpos, 1.15)
for _, obj in ipairs(objects) do
table.insert(objects_to_move, obj)
end
-- Move objects lying/standing on the stack (before it was pushed - oldstack)
if tonumber(minetest.settings:get("movement_gravity")) > 0 and dir.y == 0 then
if GRAVITY > 0 then
-- If gravity positive and dir horizontal, push players standing on the stack
for _, n in ipairs(nodestack) do
local p_above = vector.add(n.pos, {x=0, y=1, z=0})
local objects = minetest.get_objects_inside_radius(p_above, 1)
local objects = minetest.get_objects_inside_radius(p_above, 1.15)
for _, obj in ipairs(objects) do
table.insert(objects_to_move, obj)
end
@ -347,7 +348,10 @@ function mesecon.mvps_move_objects(pos, dir, nodestack)
for _, obj in ipairs(objects_to_move) do
local entity = obj:get_luaentity()
if not entity or not mesecon.is_mvps_unmov(entity.name) then
local player = obj:is_player()
if not entity or not player and not mesecon.is_mvps_unmov(entity.name) then
local np = vector.add(obj:get_pos(), dir)
--move only if destination is not solid
@ -355,6 +359,30 @@ function mesecon.mvps_move_objects(pos, dir, nodestack)
if not ((not minetest.registered_nodes[nn.name])
or minetest.registered_nodes[nn.name].walkable) then
obj:set_pos(np)
-- Launch Player, TNT & mobs like in Minecraft
-- Only doing so if slimeblock is attached.
for _, r in ipairs(mesecon.rules.alldirs) do
local adjpos = vector.add(np, r)
local adjnode = minetest.get_node(adjpos)
if minetest.registered_nodes[adjnode.name] and minetest.registered_nodes[adjnode.name].mvps_sticky then
local np = vector.add(obj:get_pos(), dir)
-- Reset acceleration of all objects before launching.
-- Fixes eggs, & snowballs thrown by dispensers
obj:set_acceleration({x=dir.x, y=-GRAVITY, z=dir.z})
--Need to set velocities differently for players, items & mobs/tnt, and falling anvils.
if player then
obj:add_velocity({x = dir.x * 10, y = dir.y * 13, z = dir.z * 10})
elseif entity.name == "__builtin:item" then
obj:add_velocity({x = dir.x * 9, y = dir.y * 11, z = dir.z * 9})
elseif entity.name == "__builtin:falling_node" then
obj:add_velocity({x = dir.x * 43, y = dir.y * 72, z = dir.z * 43})
else
obj:add_velocity({x = dir.x * 6, y = dir.y * 9, z = dir.z * 6})
end
end
end
end
end
end