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Commit 81f8c8ae authored by SmallJoker's avatar SmallJoker Committed by paramat
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Carts: Move entity definition to seperate file

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mods/carts/cart_entity.lua 0 → 100644
+ 384
− 0
View file @ 81f8c8ae
local cart_entity = {
physical = false, -- otherwise going uphill breaks
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
visual = "mesh",
mesh = "carts_cart.b3d",
visual_size = {x=1, y=1},
textures = {"carts_cart.png"},
driver = nil,
punched = false, -- used to re-send velocity and position
velocity = {x=0, y=0, z=0}, -- only used on punch
old_dir = {x=1, y=0, z=0}, -- random value to start the cart on punch
old_pos = nil,
old_switch = 0,
railtype = nil,
attached_items = {}
}
function cart_entity:on_rightclick(clicker)
if not clicker or not clicker:is_player() then
return
end
local player_name = clicker:get_player_name()
if self.driver and player_name == self.driver then
self.driver = nil
carts:manage_attachment(clicker, nil)
elseif not self.driver then
self.driver = player_name
carts:manage_attachment(clicker, self.object)
end
end
function cart_entity:on_activate(staticdata, dtime_s)
self.object:set_armor_groups({immortal=1})
if string.sub(staticdata, 1, string.len("return")) ~= "return" then
return
end
local data = minetest.deserialize(staticdata)
if not data or type(data) ~= "table" then
return
end
self.railtype = data.railtype
if data.old_dir then
self.old_dir = data.old_dir
end
if data.old_vel then
self.old_vel = data.old_vel
end
end
function cart_entity:get_staticdata()
return minetest.serialize({
railtype = self.railtype,
old_dir = self.old_dir,
old_vel = self.old_vel
})
end
function cart_entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
local pos = self.object:getpos()
if not self.railtype then
local node = minetest.get_node(pos).name
self.railtype = minetest.get_item_group(node, "connect_to_raillike")
end
if not puncher or not puncher:is_player() then
local cart_dir = carts:get_rail_direction(pos, self.old_dir, nil, nil, self.railtype)
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
return
end
self.velocity = vector.multiply(cart_dir, 3)
self.punched = true
return
end
if puncher:get_player_control().sneak then
if self.sound_handle then
minetest.sound_stop(self.sound_handle)
end
-- Pick up cart: Drop all attachments
if self.driver then
if self.old_pos then
self.object:setpos(self.old_pos)
end
local player = minetest.get_player_by_name(self.driver)
carts:manage_attachment(player, nil)
end
for _,obj_ in ipairs(self.attached_items) do
if obj_ then
obj_:set_detach()
end
end
local leftover = puncher:get_inventory():add_item("main", "carts:cart")
if not leftover:is_empty() then
minetest.add_item(self.object:getpos(), leftover)
end
self.object:remove()
return
end
local vel = self.object:getvelocity()
if puncher:get_player_name() == self.driver then
if math.abs(vel.x + vel.z) > carts.punch_speed_max then
return
end
end
local punch_dir = carts:velocity_to_dir(puncher:get_look_dir())
punch_dir.y = 0
local cart_dir = carts:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
return
end
local punch_interval = 1
if tool_capabilities and tool_capabilities.full_punch_interval then
punch_interval = tool_capabilities.full_punch_interval
end
time_from_last_punch = math.min(time_from_last_punch or punch_interval, punch_interval)
local f = 2 * (time_from_last_punch / punch_interval)
self.velocity = vector.multiply(cart_dir, f)
self.old_dir = cart_dir
self.punched = true
end
local function rail_on_step_event(handler, obj, dtime)
if handler then
handler(obj, dtime)
end
end
-- sound refresh interval = 1.0sec
local function rail_sound(self, dtime)
if not self.sound_ttl then
self.sound_ttl = 1.0
return
elseif self.sound_ttl > 0 then
self.sound_ttl = self.sound_ttl - dtime
return
end
self.sound_ttl = 1.0
if self.sound_handle then
local handle = self.sound_handle
self.sound_handle = nil
minetest.after(0.2, minetest.sound_stop, handle)
end
local vel = self.object:getvelocity()
local speed = vector.length(vel)
if speed > 0 then
self.sound_handle = minetest.sound_play(
"carts_cart_moving", {
object = self.object,
gain = (speed / carts.speed_max) / 2,
loop = true,
})
end
end
local function rail_on_step(self, dtime)
local pos = self.object:getpos()
local node = minetest.get_node(pos)
local railparams = carts.railparams[node.name] or {}
local vel = self.object:getvelocity()
local update = {}
if self.punched then
vel = vector.add(vel, self.velocity)
self.object:setvelocity(vel)
self.old_dir.y = 0
elseif vector.equals(vel, {x=0, y=0, z=0}) then
return
end
-- stop cart if velocity vector flips
if self.old_vel and (((self.old_vel.x * vel.x) < 0) or
((self.old_vel.z * vel.z) < 0)) and
(self.old_vel.y == 0) then
self.old_dir = {x = 0, y = 0, z = 0}
self.old_vel = {x = 0, y = 0, z = 0}
self.velocity = {x = 0, y = 0, z = 0}
self.old_pos = pos
self.object:setvelocity(vector.new())
self.object:setacceleration(vector.new())
rail_on_step_event(railparams.on_step, self, dtime)
return
end
self.old_vel = vector.new(vel)
if self.old_pos and not self.punched then
local flo_pos = vector.round(pos)
local flo_old = vector.round(self.old_pos)
if vector.equals(flo_pos, flo_old) then
-- Do not check one node multiple times
rail_on_step_event(railparams.on_step, self, dtime)
return
end
end
local ctrl, player
-- Get player controls
if self.driver then
player = minetest.get_player_by_name(self.driver)
if player then
ctrl = player:get_player_control()
end
end
if self.old_pos then
-- Detection for "skipping" nodes
local expected_pos = vector.add(self.old_pos, self.old_dir)
local found_path = carts:pathfinder(
pos, expected_pos, self.old_dir, ctrl, self.old_switch, self.railtype
)
if not found_path then
-- No rail found: reset back to the expected position
pos = vector.new(self.old_pos)
update.pos = true
end
end
local cart_dir = carts:velocity_to_dir(vel)
-- dir: New moving direction of the cart
-- switch_keys: Currently pressed L/R key, used to ignore the key on the next rail node
local dir, switch_keys = carts:get_rail_direction(
pos, cart_dir, ctrl, self.old_switch, self.railtype
)
local new_acc = {x=0, y=0, z=0}
if vector.equals(dir, {x=0, y=0, z=0}) then
vel = {x=0, y=0, z=0}
pos = vector.round(pos)
update.pos = true
update.vel = true
else
-- If the direction changed
if dir.x ~= 0 and self.old_dir.z ~= 0 then
vel.x = dir.x * math.abs(vel.z)
vel.z = 0
pos.z = math.floor(pos.z + 0.5)
update.pos = true
end
if dir.z ~= 0 and self.old_dir.x ~= 0 then
vel.z = dir.z * math.abs(vel.x)
vel.x = 0
pos.x = math.floor(pos.x + 0.5)
update.pos = true
end
-- Up, down?
if dir.y ~= self.old_dir.y then
vel.y = dir.y * math.abs(vel.x + vel.z)
pos = vector.round(pos)
update.pos = true
end
-- Slow down or speed up..
local acc = dir.y * -4.0
-- no need to check for railparams == nil since we always make it exist.
local speed_mod = railparams.acceleration
if speed_mod and speed_mod ~= 0 then
-- Try to make it similar to the original carts mod
acc = acc + speed_mod
else
-- Handbrake
if ctrl and ctrl.down then
acc = acc - 1.6
else
acc = acc - 0.4
end
end
new_acc = vector.multiply(dir, acc)
end
-- Limits
local max_vel = carts.speed_max
for _,v in ipairs({"x","y","z"}) do
if math.abs(vel[v]) > max_vel then
vel[v] = carts:get_sign(vel[v]) * max_vel
new_acc[v] = 0
update.vel = true
end
end
self.object:setacceleration(new_acc)
self.old_pos = vector.new(pos)
if not vector.equals(dir, {x=0, y=0, z=0}) then
self.old_dir = vector.new(dir)
end
self.old_switch = switch_keys
if self.punched then
-- Collect dropped items
for _,obj_ in ipairs(minetest.get_objects_inside_radius(pos, 1)) do
if not obj_:is_player() and
obj_:get_luaentity() and
not obj_:get_luaentity().physical_state and
obj_:get_luaentity().name == "__builtin:item" then
obj_:set_attach(self.object, "", {x=0, y=0, z=0}, {x=0, y=0, z=0})
self.attached_items[#self.attached_items + 1] = obj_
end
end
self.punched = false
update.vel = true
end
if not (update.vel or update.pos) then
rail_on_step_event(railparams.on_step, self, dtime)
return
end
local yaw = 0
if self.old_dir.x < 0 then
yaw = 0.5
elseif self.old_dir.x > 0 then
yaw = 1.5
elseif self.old_dir.z < 0 then
yaw = 1
end
self.object:setyaw(yaw * math.pi)
local anim = {x=0, y=0}
if dir.y == -1 then
anim = {x=1, y=1}
elseif dir.y == 1 then
anim = {x=2, y=2}
end
self.object:set_animation(anim, 1, 0)
self.object:setvelocity(vel)
if update.pos then
self.object:setpos(pos)
end
-- call event handler
rail_on_step_event(railparams.on_step, self, dtime)
end
function cart_entity:on_step(dtime)
rail_on_step(self, dtime)
rail_sound(self, dtime)
end
minetest.register_entity("carts:cart", cart_entity)
minetest.register_craftitem("carts:cart", {
description = "Cart (Sneak+Click to pick up)",
inventory_image = minetest.inventorycube("carts_cart_top.png", "carts_cart_side.png", "carts_cart_side.png"),
wield_image = "carts_cart_side.png",
on_place = function(itemstack, placer, pointed_thing)
if not pointed_thing.type == "node" then
return
end
if carts:is_rail(pointed_thing.under) then
minetest.add_entity(pointed_thing.under, "carts:cart")
elseif carts:is_rail(pointed_thing.above) then
minetest.add_entity(pointed_thing.above, "carts:cart")
else
return
end
minetest.sound_play({name = "default_place_node_metal", gain = 0.5},
{pos = pointed_thing.above})
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
return itemstack
end,
})
minetest.register_craft({
output = "carts:cart",
recipe = {
{"default:steel_ingot", "", "default:steel_ingot"},
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
},
})
mods/carts/init.lua
+ 1
− 384
View file @ 81f8c8ae
......@@ -17,387 +17,4 @@ if not default.player_attached then
default.player_attached = {}
end
local cart_entity = {
physical = false, -- otherwise going uphill breaks
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
visual = "mesh",
mesh = "carts_cart.b3d",
visual_size = {x=1, y=1},
textures = {"carts_cart.png"},
driver = nil,
punched = false, -- used to re-send velocity and position
velocity = {x=0, y=0, z=0}, -- only used on punch
old_dir = {x=1, y=0, z=0}, -- random value to start the cart on punch
old_pos = nil,
old_switch = 0,
railtype = nil,
attached_items = {}
}
function cart_entity:on_rightclick(clicker)
if not clicker or not clicker:is_player() then
return
end
local player_name = clicker:get_player_name()
if self.driver and player_name == self.driver then
self.driver = nil
carts:manage_attachment(clicker, nil)
elseif not self.driver then
self.driver = player_name
carts:manage_attachment(clicker, self.object)
end
end
function cart_entity:on_activate(staticdata, dtime_s)
self.object:set_armor_groups({immortal=1})
if string.sub(staticdata, 1, string.len("return")) ~= "return" then
return
end
local data = minetest.deserialize(staticdata)
if not data or type(data) ~= "table" then
return
end
self.railtype = data.railtype
if data.old_dir then
self.old_dir = data.old_dir
end
if data.old_vel then
self.old_vel = data.old_vel
end
end
function cart_entity:get_staticdata()
return minetest.serialize({
railtype = self.railtype,
old_dir = self.old_dir,
old_vel = self.old_vel
})
end
function cart_entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
local pos = self.object:getpos()
if not self.railtype then
local node = minetest.get_node(pos).name
self.railtype = minetest.get_item_group(node, "connect_to_raillike")
end
if not puncher or not puncher:is_player() then
local cart_dir = carts:get_rail_direction(pos, self.old_dir, nil, nil, self.railtype)
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
return
end
self.velocity = vector.multiply(cart_dir, 3)
self.punched = true
return
end
if puncher:get_player_control().sneak then
if self.sound_handle then
minetest.sound_stop(self.sound_handle)
end
-- Pick up cart: Drop all attachments
if self.driver then
if self.old_pos then
self.object:setpos(self.old_pos)
end
local player = minetest.get_player_by_name(self.driver)
carts:manage_attachment(player, nil)
end
for _,obj_ in ipairs(self.attached_items) do
if obj_ then
obj_:set_detach()
end
end
local leftover = puncher:get_inventory():add_item("main", "carts:cart")
if not leftover:is_empty() then
minetest.add_item(self.object:getpos(), leftover)
end
self.object:remove()
return
end
local vel = self.object:getvelocity()
if puncher:get_player_name() == self.driver then
if math.abs(vel.x + vel.z) > carts.punch_speed_max then
return
end
end
local punch_dir = carts:velocity_to_dir(puncher:get_look_dir())
punch_dir.y = 0
local cart_dir = carts:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
return
end
local punch_interval = 1
if tool_capabilities and tool_capabilities.full_punch_interval then
punch_interval = tool_capabilities.full_punch_interval
end
time_from_last_punch = math.min(time_from_last_punch or punch_interval, punch_interval)
local f = 2 * (time_from_last_punch / punch_interval)
self.velocity = vector.multiply(cart_dir, f)
self.old_dir = cart_dir
self.punched = true
end
local function rail_on_step_event(handler, obj, dtime)
if handler then
handler(obj, dtime)
end
end
-- sound refresh interval = 1.0sec
local function rail_sound(self, dtime)
if not self.sound_ttl then
self.sound_ttl = 1.0
return
elseif self.sound_ttl > 0 then
self.sound_ttl = self.sound_ttl - dtime
return
end
self.sound_ttl = 1.0
if self.sound_handle then
local handle = self.sound_handle
self.sound_handle = nil
minetest.after(0.2, minetest.sound_stop, handle)
end
local vel = self.object:getvelocity()
local speed = vector.length(vel)
if speed > 0 then
self.sound_handle = minetest.sound_play(
"carts_cart_moving", {
object = self.object,
gain = (speed / carts.speed_max) / 2,
loop = true,
})
end
end
local function rail_on_step(self, dtime)
local pos = self.object:getpos()
local node = minetest.get_node(pos)
local railparams = carts.railparams[node.name] or {}
local vel = self.object:getvelocity()
local update = {}
if self.punched then
vel = vector.add(vel, self.velocity)
self.object:setvelocity(vel)
self.old_dir.y = 0
elseif vector.equals(vel, {x=0, y=0, z=0}) then
return
end
-- stop cart if velocity vector flips
if self.old_vel and (((self.old_vel.x * vel.x) < 0) or
((self.old_vel.z * vel.z) < 0)) and
(self.old_vel.y == 0) then
self.old_dir = {x = 0, y = 0, z = 0}
self.old_vel = {x = 0, y = 0, z = 0}
self.velocity = {x = 0, y = 0, z = 0}
self.old_pos = pos
self.object:setvelocity(vector.new())
self.object:setacceleration(vector.new())
rail_on_step_event(railparams.on_step, self, dtime)
return
end
self.old_vel = vector.new(vel)
if self.old_pos and not self.punched then
local flo_pos = vector.round(pos)
local flo_old = vector.round(self.old_pos)
if vector.equals(flo_pos, flo_old) then
-- Do not check one node multiple times
rail_on_step_event(railparams.on_step, self, dtime)
return
end
end
local ctrl, player
-- Get player controls
if self.driver then
player = minetest.get_player_by_name(self.driver)
if player then
ctrl = player:get_player_control()
end
end
if self.old_pos then
-- Detection for "skipping" nodes
local expected_pos = vector.add(self.old_pos, self.old_dir)
local found_path = carts:pathfinder(
pos, expected_pos, self.old_dir, ctrl, self.old_switch, self.railtype
)
if not found_path then
-- No rail found: reset back to the expected position
pos = vector.new(self.old_pos)
update.pos = true
end
end
local cart_dir = carts:velocity_to_dir(vel)
-- dir: New moving direction of the cart
-- switch_keys: Currently pressed L/R key, used to ignore the key on the next rail node
local dir, switch_keys = carts:get_rail_direction(
pos, cart_dir, ctrl, self.old_switch, self.railtype
)
local new_acc = {x=0, y=0, z=0}
if vector.equals(dir, {x=0, y=0, z=0}) then
vel = {x=0, y=0, z=0}
pos = vector.round(pos)
update.pos = true
update.vel = true
else
-- If the direction changed
if dir.x ~= 0 and self.old_dir.z ~= 0 then
vel.x = dir.x * math.abs(vel.z)
vel.z = 0
pos.z = math.floor(pos.z + 0.5)
update.pos = true
end
if dir.z ~= 0 and self.old_dir.x ~= 0 then
vel.z = dir.z * math.abs(vel.x)
vel.x = 0
pos.x = math.floor(pos.x + 0.5)
update.pos = true
end
-- Up, down?
if dir.y ~= self.old_dir.y then
vel.y = dir.y * math.abs(vel.x + vel.z)
pos = vector.round(pos)
update.pos = true
end
-- Slow down or speed up..
local acc = dir.y * -4.0
-- no need to check for railparams == nil since we always make it exist.
local speed_mod = railparams.acceleration
if speed_mod and speed_mod ~= 0 then
-- Try to make it similar to the original carts mod
acc = acc + speed_mod
else
-- Handbrake
if ctrl and ctrl.down then
acc = acc - 1.6
else
acc = acc - 0.4
end
end
new_acc = vector.multiply(dir, acc)
end
-- Limits
local max_vel = carts.speed_max
for _,v in ipairs({"x","y","z"}) do
if math.abs(vel[v]) > max_vel then
vel[v] = carts:get_sign(vel[v]) * max_vel
new_acc[v] = 0
update.vel = true
end
end
self.object:setacceleration(new_acc)
self.old_pos = vector.new(pos)
if not vector.equals(dir, {x=0, y=0, z=0}) then
self.old_dir = vector.new(dir)
end
self.old_switch = switch_keys
if self.punched then
-- Collect dropped items
for _,obj_ in ipairs(minetest.get_objects_inside_radius(pos, 1)) do
if not obj_:is_player() and
obj_:get_luaentity() and
not obj_:get_luaentity().physical_state and
obj_:get_luaentity().name == "__builtin:item" then
obj_:set_attach(self.object, "", {x=0, y=0, z=0}, {x=0, y=0, z=0})
self.attached_items[#self.attached_items + 1] = obj_
end
end
self.punched = false
update.vel = true
end
if not (update.vel or update.pos) then
rail_on_step_event(railparams.on_step, self, dtime)
return
end
local yaw = 0
if self.old_dir.x < 0 then
yaw = 0.5
elseif self.old_dir.x > 0 then
yaw = 1.5
elseif self.old_dir.z < 0 then
yaw = 1
end
self.object:setyaw(yaw * math.pi)
local anim = {x=0, y=0}
if dir.y == -1 then
anim = {x=1, y=1}
elseif dir.y == 1 then
anim = {x=2, y=2}
end
self.object:set_animation(anim, 1, 0)
self.object:setvelocity(vel)
if update.pos then
self.object:setpos(pos)
end
-- call event handler
rail_on_step_event(railparams.on_step, self, dtime)
end
function cart_entity:on_step(dtime)
rail_on_step(self, dtime)
rail_sound(self, dtime)
end
minetest.register_entity("carts:cart", cart_entity)
minetest.register_craftitem("carts:cart", {
description = "Cart (Sneak+Click to pick up)",
inventory_image = minetest.inventorycube("carts_cart_top.png", "carts_cart_side.png", "carts_cart_side.png"),
wield_image = "carts_cart_side.png",
on_place = function(itemstack, placer, pointed_thing)
if not pointed_thing.type == "node" then
return
end
if carts:is_rail(pointed_thing.under) then
minetest.add_entity(pointed_thing.under, "carts:cart")
elseif carts:is_rail(pointed_thing.above) then
minetest.add_entity(pointed_thing.above, "carts:cart")
else
return
end
minetest.sound_play({name = "default_place_node_metal", gain = 0.5},
{pos = pointed_thing.above})
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
return itemstack
end,
})
minetest.register_craft({
output = "carts:cart",
recipe = {
{"default:steel_ingot", "", "default:steel_ingot"},
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
},
})
dofile(carts.modpath.."/cart_entity.lua")
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