mtcontrib/spears
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Version 2.4

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echoes91 2022-10-12 23:20:51 +02:00
parent f2e49d11cb
commit 8dad57e2a6
3 changed files with 98 additions and 53 deletions
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8
defaults.lua
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@ -5,3 +5,11 @@ DISABLE_BRONZE_SPEAR = false
DISABLE_DIAMOND_SPEAR = false
DISABLE_OBSIDIAN_SPEAR = false
DISABLE_GOLD_SPEAR = false
SPEARS_THROW_SPEED = 13
SPEARS_V_ZERO = {x = 0, y = 0, z = 0}
SPEARS_DRAG_COEFF = 0.1
SPEARS_NODE_UNKNOWN = nil
SPEARS_NODE_THROUGH = 0
SPEARS_NODE_STICKY = 1
SPEARS_NODE_CRACKY = 2
SPEARS_NODE_CRACKY_LIMIT = 3

142
functions.lua
View File

@ -7,30 +7,39 @@ function spears_throw (itemstack, player, pointed_thing)
local pitch = player:get_look_vertical()
local yaw = player:get_look_horizontal()
local rotation = vector.new(0, yaw + math.pi/2, pitch + math.pi/6)
-- Stick into node
if pointed_thing.type == "node" then
local node = minetest.get_node(pointed_thing.under)
if minetest.registered_nodes[node.name].walkable and vector.distance(pointed_thing.above, throw_pos) < 1 then
local spear_object = minetest.add_entity(vector.divide(vector.add(vector.multiply(pointed_thing.above, 2), pointed_thing.under), 3), spear)
local wear = itemstack:get_wear()
local pointed_a = pointed_thing.above
local pointed_b = pointed_thing.under
if pointed_thing.type == "node" and vector.distance(pointed_a, throw_pos) < 1 then -- Stick into node
local node = minetest.get_node(pointed_b)
local check_node = spears_check_node(node.name)
if check_node == SPEARS_NODE_UNKNOWN then
return false
elseif check_node == SPEARS_NODE_CRACKY then
minetest.sound_play("default_metal_footstep", {pos = pointed_a}, true)
return false
elseif check_node == SPEARS_NODE_STICKY then
local spear_object = minetest.add_entity(vector.divide(vector.add(vector.multiply(pointed_a, 2), pointed_b), 3), spear)
spear_object:set_rotation(rotation)
spear_object:get_luaentity()._wear = itemstack:get_wear()
spear_object:get_luaentity()._stickpos = pointed_thing.under
return
spear_object:get_luaentity()._wear = wear
spear_object:get_luaentity()._stickpos = pointed_b
minetest.sound_play("default_place_node", {pos = pointed_a}, true)
return false
end
else -- Avoid hitting yourself and throw
local throw_speed = SPEARS_THROW_SPEED
while vector.distance(player_pos, throw_pos) < 1.2 do
throw_pos = vector.add(throw_pos, vector.multiply(direction, 0.1))
end
local player_vel = player:get_velocity()
local spear_object = minetest.add_entity(throw_pos, spear)
spear_object:set_velocity(vector.add(player_vel, vector.multiply(direction, throw_speed)))
spear_object:set_rotation(rotation)
minetest.sound_play("spears_throw", {pos = player_pos}, true)
spear_object:get_luaentity()._wear = wear
spear_object:get_luaentity()._stickpos = nil
return true
end
-- Avoid hitting yourself and throw
local throw_speed = 12
while vector.distance(player_pos, throw_pos) < 1.2 do
throw_pos = vector.add(throw_pos, vector.multiply(direction, 0.1))
end
local player_vel = player:get_velocity()
local spear_object = minetest.add_entity(throw_pos, spear)
spear_object:set_velocity(vector.add(player_vel, vector.multiply(direction, throw_speed)))
spear_object:set_rotation(rotation)
minetest.sound_play("spears_throw", {pos = player_pos}, true)
spear_object:get_luaentity()._wear = itemstack:get_wear()
spear_object:get_luaentity()._stickpos = nil
return true
end
function spears_set_entity(spear_type, base_damage, toughness)
@ -59,36 +68,27 @@ function spears_set_entity(spear_type, base_damage, toughness)
end,
on_step = function(self, dtime)
if not self._wear then
local wear = self._wear
if wear == nil then
self.object:remove()
return
return false
end
local pos = self.object:get_pos()
local velocity = self.object:get_velocity()
local speed = vector.length(velocity)
-- Spear is stuck ?
if self._stickpos then
if self._stickpos ~= nil then -- Spear is stuck
local node = minetest.get_node(self._stickpos)
local node_cracky = minetest.registered_nodes[node.name].groups.cracky
if node_cracky and node_cracky < 3 then
minetest.sound_play("default_metal_footstep", {pos = pos}, true)
local check_node = spears_check_node(node.name)
if check_node ~= SPEARS_NODE_STICKY then -- Fall when node is removed
self.object:remove()
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = self._wear})
elseif not self._node_walkable then
minetest.sound_play("default_place_node", {pos = pos}, true)
end
self._node_walkable = minetest.registered_nodes[node.name].walkable
if not node or not self._node_walkable then -- Fall when node is removed
self.object:remove()
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = self._wear})
return
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
return false
end
else -- Spear is flying
local direction = vector.normalize(velocity)
local yaw = minetest.dir_to_yaw(direction)
local pitch = math.acos(velocity.y/speed) - math.pi/3
local spearhead_pos = vector.add(pos, vector.multiply(direction, 0.5))
local node = minetest.get_node(spearhead_pos)
self.object:set_rotation({x = 0, y = yaw + math.pi/2, z = pitch})
-- Hit someone?
local objects_in_radius = minetest.get_objects_inside_radius(spearhead_pos, 0.6)
@ -98,26 +98,39 @@ function spears_set_entity(spear_type, base_damage, toughness)
object:punch(self.object, 1.0, {full_punch_interval = 1.0, damage_groups = {fleshy=damage},}, direction)
self.object:remove()
minetest.sound_play("spears_hit", {pos = pos}, true)
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = self._wear + 65535/toughness})
return
wear = spears_wear(wear, toughness)
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
return true
end
end
-- Hit a node?
if node and minetest.registered_nodes[node.name].walkable
and not minetest.registered_nodes[node.name].buildable_to
and not (minetest.registered_nodes[node.name].groups.slab and spearhead_pos.y % 1 < 0.5)
then -- Stick
self.object:set_acceleration({x = 0, y = 0, z = 0})
self.object:set_velocity({x = 0, y = 0, z = 0})
self._wear = self._wear + 65535/toughness
if self._wear >= 65535 then
-- Hit a node?
local node = minetest.get_node(spearhead_pos)
local check_node = spears_check_node(node.name)
if check_node == SPEARS_NODE_UNKNOWN then
self.object:remove()
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
elseif check_node ~= SPEARS_NODE_THROUGH then
wear = spears_wear(wear, toughness)
if wear >= 65535 then
minetest.sound_play("default_tool_breaks", {pos = pos}, true)
self.object:remove()
return
minetest.add_item(pos, {name='defaut:stick'})
return false
elseif check_node == SPEARS_NODE_CRACKY then
minetest.sound_play("default_metal_footstep", {pos = pos}, true)
self.object:remove()
minetest.add_item(pos, {name='spears:spear_' .. spear_type, wear = wear})
return false
elseif check_node == SPEARS_NODE_STICKY then
self.object:set_acceleration(SPEARS_V_ZERO)
self.object:set_velocity(SPEARS_V_ZERO)
minetest.sound_play("default_place_node", {pos = pos}, true)
self._stickpos = spearhead_pos
self._wear = wear
end
self._stickpos = spearhead_pos
else -- Get drag
local drag = math.max(minetest.registered_nodes[node.name].liquid_viscosity, 0.1)
else -- Get drag
local viscosity = minetest.registered_nodes[node.name].liquid_viscosity
local drag = math.max(viscosity, SPEARS_DRAG_COEFF)
local acceleration = vector.multiply(velocity, -drag)
acceleration.y = acceleration.y - 10 * ((7 - drag) / 7)
self.object:set_acceleration(acceleration)
@ -127,3 +140,26 @@ function spears_set_entity(spear_type, base_damage, toughness)
}
return SPEAR_ENTITY
end
function spears_check_node(node_name)
local node = minetest.registered_nodes[node_name]
if node == nil then
return SPEARS_NODE_UNKNOWN
elseif node.groups.cracky ~= nil and node.groups.cracky < SPEARS_NODE_CRACKY_LIMIT then
return SPEARS_NODE_CRACKY
elseif node.walkable and not node.buildable then
return SPEARS_NODE_STICKY
else
return SPEARS_NODE_THROUGH
end
end
function spears_wear(initial_wear, toughness)
if not minetest.settings:get_bool("creative_mode") then
local wear = initial_wear + 65535/toughness
return wear
else
local wear = initial_wear
return wear
end
end

1
spears.conf.example
View File

@ -5,3 +5,4 @@ DISABLE_BRONZE_SPEAR = true
DISABLE_DIAMOND_SPEAR = true
DISABLE_OBSIDIAN_SPEAR = true
DISABLE_GOLD_SPEAR = true
SPEARS_THROW_SPEED = 13