Add basic minecarts and powered rails

master
Wuzzy 2017-01-05 15:23:14 +01:00
parent e1539e42e4
commit 1f18ca6aa2
24 changed files with 860 additions and 1 deletions

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@ -872,7 +872,7 @@ minetest.register_node("default:rail", {
fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
},
stack_max = 64,
groups = {bendy=2,dig_immediate=2,attached_node=1},
groups = {dig_immediate=2,attached_node=1,rail=1,connect_to_raillike=1},
})
minetest.register_node("default:ladder", {

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@ -0,0 +1,31 @@
mcl_minecarts
=============
Based on the mod "boost_carts" by Krock.
Target: Run smoothly and do not use too much CPU.
TODO:
- Make minecart smaller
- Minecraft-like physics
- Change minecart model and textures
- Add activator rail
- Add more rail textures
- Add loaded minecarts
License of source code:
-----------------------
WTFPL
License of media (textures, sounds and models):
-----------------------------------------------
CC-0
Authors of media files:
-----------------------
kddekadenz:
cart_bottom.png
cart_side.png
cart_top.png
Zeg9:
cart.x
cart.png

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@ -0,0 +1,2 @@
default
mesecons?

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@ -0,0 +1,150 @@
function mcl_minecarts:get_sign(z)
if z == 0 then
return 0
else
return z / math.abs(z)
end
end
function mcl_minecarts:velocity_to_dir(v)
if math.abs(v.x) > math.abs(v.z) then
return {x=mcl_minecarts:get_sign(v.x), y=mcl_minecarts:get_sign(v.y), z=0}
else
return {x=0, y=mcl_minecarts:get_sign(v.y), z=mcl_minecarts:get_sign(v.z)}
end
end
function mcl_minecarts:is_rail(pos, railtype)
local node = minetest.get_node(pos).name
if node == "ignore" then
local vm = minetest.get_voxel_manip()
local emin, emax = vm:read_from_map(pos, pos)
local area = VoxelArea:new{
MinEdge = emin,
MaxEdge = emax,
}
local data = vm:get_data()
local vi = area:indexp(pos)
node = minetest.get_name_from_content_id(data[vi])
end
if minetest.get_item_group(node, "rail") == 0 then
return false
end
if not railtype then
return true
end
return minetest.get_item_group(node, "connect_to_raillike") == railtype
end
function mcl_minecarts:check_front_up_down(pos, dir_, check_down, railtype)
local dir = vector.new(dir_)
local cur = nil
-- Front
dir.y = 0
cur = vector.add(pos, dir)
if mcl_minecarts:is_rail(cur, railtype) then
return dir
end
-- Up
if check_down then
dir.y = 1
cur = vector.add(pos, dir)
if mcl_minecarts:is_rail(cur, railtype) then
return dir
end
end
-- Down
dir.y = -1
cur = vector.add(pos, dir)
if mcl_minecarts:is_rail(cur, railtype) then
return dir
end
return nil
end
function mcl_minecarts:get_rail_direction(pos_, dir, ctrl, old_switch, railtype)
local pos = vector.round(pos_)
local cur = nil
local left_check, right_check = true, true
-- Check left and right
local left = {x=0, y=0, z=0}
local right = {x=0, y=0, z=0}
if dir.z ~= 0 and dir.x == 0 then
left.x = -dir.z
right.x = dir.z
elseif dir.x ~= 0 and dir.z == 0 then
left.z = dir.x
right.z = -dir.x
end
if ctrl then
if old_switch == 1 then
left_check = false
elseif old_switch == 2 then
right_check = false
end
if ctrl.left and left_check then
cur = mcl_minecarts:check_front_up_down(pos, left, false, railtype)
if cur then
return cur, 1
end
left_check = false
end
if ctrl.right and right_check then
cur = mcl_minecarts:check_front_up_down(pos, right, false, railtype)
if cur then
return cur, 2
end
right_check = true
end
end
-- Normal
cur = mcl_minecarts:check_front_up_down(pos, dir, true, railtype)
if cur then
return cur
end
-- Left, if not already checked
if left_check then
cur = mcl_minecarts:check_front_up_down(pos, left, false, railtype)
if cur then
return cur
end
end
-- Right, if not already checked
if right_check then
cur = mcl_minecarts:check_front_up_down(pos, right, false, railtype)
if cur then
return cur
end
end
-- Backwards
if not old_switch then
cur = mcl_minecarts:check_front_up_down(pos, {
x = -dir.x,
y = dir.y,
z = -dir.z
}, true, railtype)
if cur then
return cur
end
end
return {x=0, y=0, z=0}
end
function mcl_minecarts:boost_rail(pos, amount)
minetest.get_meta(pos):set_string("cart_acceleration", tostring(amount))
for _,obj_ in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
if not obj_:is_player() and
obj_:get_luaentity() and
obj_:get_luaentity().name == "mcl_minecarts:minecart" then
obj_:get_luaentity():on_punch()
end
end
end

290
mods/mcl_minecarts/init.lua Normal file
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@ -0,0 +1,290 @@
mcl_minecarts = {}
mcl_minecarts.modpath = minetest.get_modpath("mcl_minecarts")
mcl_minecarts.speed_max = 10
function vector.floor(v)
return {
x = math.floor(v.x),
y = math.floor(v.y),
z = math.floor(v.z)
}
end
dofile(mcl_minecarts.modpath.."/functions.lua")
dofile(mcl_minecarts.modpath.."/rails.lua")
mcl_minecarts.cart = {
physical = false,
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
visual = "mesh",
mesh = "cart.x",
visual_size = {x=1, y=1},
textures = {"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=0, y=0, z=0},
old_pos = nil,
old_switch = 0,
railtype = nil,
}
function mcl_minecarts.cart: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
clicker:set_detach()
elseif not self.driver then
self.driver = player_name
default.player_attached[player_name] = true
clicker:set_attach(self.object, "", {x=0, y=3, z=0}, {x=0, y=0, z=0})
end
end
function mcl_minecarts.cart:on_activate(staticdata, dtime_s)
self.object:set_armor_groups({immortal=1})
end
function mcl_minecarts.cart: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(vector.floor(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 = mcl_minecarts:get_rail_direction(pos, {x=1, y=0, z=0}, 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.old_pos = nil
self.punched = true
return
end
if puncher:get_player_control().sneak then
if self.driver then
if self.old_pos then
self.object:setpos(self.old_pos)
end
default.player_attached[self.driver] = nil
local player = minetest.get_player_by_name(self.driver)
if player then
player:set_detach()
end
end
self.object:remove()
puncher:get_inventory():add_item("main", "mcl_minecarts:minecart")
return
end
local vel = self.object:getvelocity()
if puncher:get_player_name() == self.driver then
if math.abs(vel.x + vel.z) > 7 then
return
end
end
local punch_dir = mcl_minecarts:velocity_to_dir(puncher:get_look_dir())
punch_dir.y = 0
local cart_dir = mcl_minecarts:get_rail_direction(pos, punch_dir, nil, nil, self.railtype)
if vector.equals(cart_dir, {x=0, y=0, z=0}) then
return
end
time_from_last_punch = math.min(time_from_last_punch, tool_capabilities.full_punch_interval)
local f = 3 * (time_from_last_punch / tool_capabilities.full_punch_interval)
self.velocity = vector.multiply(cart_dir, f)
self.old_pos = nil
self.punched = true
end
function mcl_minecarts.cart:on_step(dtime)
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
local dir, last_switch = nil, nil
local pos = self.object:getpos()
if self.old_pos and not self.punched then
local flo_pos = vector.floor(pos)
local flo_old = vector.floor(self.old_pos)
if vector.equals(flo_pos, flo_old) then
return
end
end
local ctrl, player = nil, nil
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
local diff = vector.subtract(self.old_pos, pos)
for _,v in ipairs({"x","y","z"}) do
if math.abs(diff[v]) > 1.1 then
local expected_pos = vector.add(self.old_pos, self.old_dir)
dir, last_switch = mcl_minecarts:get_rail_direction(pos, self.old_dir, ctrl, self.old_switch, self.railtype)
if vector.equals(dir, {x=0, y=0, z=0}) then
dir = false
pos = vector.new(expected_pos)
update.pos = true
end
break
end
end
end
if vel.y == 0 then
for _,v in ipairs({"x", "z"}) do
if vel[v] ~= 0 and math.abs(vel[v]) < 0.9 then
vel[v] = 0
update.vel = true
end
end
end
local cart_dir = mcl_minecarts:velocity_to_dir(vel)
local max_vel = mcl_minecarts.speed_max
if not dir then
dir, last_switch = mcl_minecarts:get_rail_direction(pos, cart_dir, ctrl, self.old_switch, self.railtype)
end
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}
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 * -1.8
local speed_mod = tonumber(minetest.get_meta(pos):get_string("cart_acceleration"))
if speed_mod and speed_mod ~= 0 then
if speed_mod > 0 then
for _,v in ipairs({"x","y","z"}) do
if math.abs(vel[v]) >= max_vel then
speed_mod = 0
break
end
end
end
acc = acc + (speed_mod * 8)
else
acc = acc - 0.4
-- Handbrake
if ctrl and ctrl.down and math.abs(vel.x + vel.z) > 1.2 then
acc = acc - 1.2
end
end
new_acc = vector.multiply(dir, acc)
end
self.object:setacceleration(new_acc)
self.old_pos = vector.new(pos)
self.old_dir = vector.new(dir)
self.old_switch = last_switch
-- Limits
for _,v in ipairs({"x","y","z"}) do
if math.abs(vel[v]) > max_vel then
vel[v] = mcl_minecarts:get_sign(vel[v]) * max_vel
update.vel = true
end
end
if self.punched then
self.punched = false
end
if not (update.vel or update.pos) then
return
end
local yaw = 0
if dir.x < 0 then
yaw = 0.5
elseif dir.x > 0 then
yaw = 1.5
elseif 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
update = nil
end
minetest.register_entity("mcl_minecarts:minecart", mcl_minecarts.cart)
minetest.register_craftitem("mcl_minecarts:minecart", {
description = "Minecart",
inventory_image = minetest.inventorycube("cart_top.png", "cart_side.png", "cart_side.png"),
wield_image = "cart_side.png",
on_place = function(itemstack, placer, pointed_thing)
if not pointed_thing.type == "node" then
return
end
if mcl_minecarts:is_rail(pointed_thing.under) then
minetest.add_entity(pointed_thing.under, "mcl_minecarts:minecart")
elseif mcl_minecarts:is_rail(pointed_thing.above) then
minetest.add_entity(pointed_thing.above, "mcl_minecarts:minecart")
else return end
itemstack:take_item()
return itemstack
end,
})
minetest.register_craft({
output = "mcl_minecarts:minecart",
recipe = {
{"default:steel_ingot", "", "default:steel_ingot"},
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
},
})

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@ -0,0 +1 @@
name = mcl_minecarts

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0.500000; 0.500000;,
0.500000; 1.000000;,
0.000000; 1.000000;,
0.031250; 0.500000;,
-0.000000; 0.500000;,
-0.000000; 0.468750;,
0.031250; 0.468750;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
1.000000; 0.500000;,
0.468750; 0.468750;,
0.500000; 0.468750;,
0.500000; 0.500000;,
0.468750; 0.500000;,
0.031250; 0.468750;,
0.468750; 0.468750;,
0.468750; 0.500000;,
0.031250; 0.500000;,
0.468750; 0.000000;,
0.500000; 0.000000;,
0.500000; 0.031250;,
0.468750; 0.031250;,
0.468750; 0.031250;,
0.500000; 0.031250;,
0.500000; 0.468750;,
0.468750; 0.468750;,
0.468750; 0.031250;,
0.031250; 0.031250;,
0.031250; 0.000000;,
0.468750; 0.000000;,
1.000000; 0.500000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
0.031250; 0.031250;,
0.000000; 0.031250;,
0.000000; 0.000000;,
0.031250; 0.000000;,
0.031250; 0.468750;,
-0.000000; 0.468750;,
0.000000; 0.031250;,
0.031250; 0.031250;,
0.000000; 0.500000;,
0.500000; 0.500000;,
0.500000; 1.000000;,
0.000000; 1.000000;,
1.000000; 0.500000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
1.000000; 0.500000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
1.000000; 0.500000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
1.000000; 0.500000;,
1.000000; 0.000000;,
1.000000; 0.500000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
0.500000; 0.500000;,
0.500000; 0.000000;,
1.000000; 0.000000;,
1.000000; 0.500000;;
} //End of Cube_001 UV Coordinates
} //End of Cube_001 Mesh
} //End of Cube
} //End of Root Frame
AnimationSet {
Animation {
{Cube}
AnimationKey { //Position
2;
4;
0;3; 0.000000, 0.000000, 0.000000;;,
1;3; 0.000000, 3.000000, 3.000000;;,
2;3; 0.000000,-3.000000, 3.000000;;,
3;3; 0.000000,-3.000000, 3.000000;;;
}
AnimationKey { //Rotation
0;
4;
0;4; -1.000000, 0.000000, 0.000000, 0.000000;;,
1;4; -0.923880,-0.382683,-0.000000, 0.000000;;,
2;4; -0.923880, 0.382683, 0.000000, 0.000000;;,
3;4; -0.923880, 0.382683, 0.000000, 0.000000;;;
}
AnimationKey { //Scale
1;
4;
0;3; 5.000000, 5.000000, 5.000000;;,
1;3; 5.000000, 5.000000, 5.000000;;,
2;3; 5.000000, 5.000000, 5.000000;;,
3;3; 5.000000, 5.000000, 5.000000;;;
}
}
} //End of AnimationSet

View File

@ -0,0 +1,46 @@
-- Speed up
minetest.register_node("mcl_minecarts:golden_rail", {
description = "Powered Rail",
drawtype = "raillike",
tiles = {"carts_rail_pwr.png", "carts_rail_curved_pwr.png", "carts_rail_t_junction_pwr.png", "carts_rail_crossing_pwr.png"},
inventory_image = "carts_rail_pwr.png",
wield_image = "carts_rail_pwr.png",
paramtype = "light",
is_ground_content = true,
walkable = false,
selection_box = {
type = "fixed",
-- but how to specify the dimensions for curved and sideways rails?
fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
},
groups = {dig_immediate = 2, attached_node = 1, rail = 1, connect_to_raillike = 1},
after_place_node = function(pos, placer, itemstack)
if not mesecon then
minetest.get_meta(pos):set_string("cart_acceleration", "0.5")
end
end,
mesecons = {
effector = {
action_on = function(pos, node)
mcl_minecarts:boost_rail(pos, 0.5)
end,
action_off = function(pos, node)
minetest.get_meta(pos):set_string("cart_acceleration", "0")
end,
},
},
})
minetest.register_craft({
output = "mcl_minecarts:golden_rail 6",
recipe = {
{"default:gold_ingot", "", "default:gold_ingot"},
{"default:gold_ingot", "default:stick", "default:gold_ingot"},
{"default:gold_ingot", "mesecons:redstone_dust", "default:gold_ingot"},
}
})

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