226 lines
7.5 KiB
Lua
226 lines
7.5 KiB
Lua
local creative_mode = minetest.settings:get_bool("creative_mode")
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-- Adjustable speed physics
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-- To deal with server lag
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local base_spear_velocity = 16
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local base_gravity = 9.8
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local base_drag = 0.3
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local statmodifier = nssm.spearmodifier
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--[[
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Spears thrown on servers have to contend with lag between spear movement and mob movement
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The more lag, the slower the spear needs to move -- the move step of the mob and spear is not as fluid
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as it is locally.
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--]]
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minetest.register_chatcommand("setspearstat",{
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description = "Set spear stats modifier - default 1 (somewhat fast)",
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params = "<(float)>",
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privs = {server = 1},
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func = function(playername, params)
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statmodifier = tonumber(params) or 1
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minetest.chat_send_player(playername, "Spear stat modifier set to "..tostring(statmodifier))
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end,
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})
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local function is_walkable(node_name)
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if not minetest.registered_nodes[node_name] then
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return true -- non-existent, we should stop the spear !
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end
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if minetest.registered_nodes[node_name].walkable == true
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or minetest.registered_nodes[node_name].walkable == nil
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then
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return true
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end
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return false
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end
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local function spears_shot(itemstack, player)
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local spear = itemstack:get_name() .. '_entity'
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local speed, gravity
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if spear == "nssm:spear_of_peace_entity" then
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speed = base_spear_velocity * statmodifier * 2
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gravity = base_gravity * statmodifier * 2
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else
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speed = base_spear_velocity * statmodifier
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gravity = base_gravity * statmodifier
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end
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local drag = base_drag * statmodifier
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local playerpos = player:getpos()
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local obj = minetest.add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, spear)
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local dir = player:get_look_dir()
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obj:setvelocity({x=dir.x*speed, y=dir.y*speed, z=dir.z*speed})
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obj:setacceleration({x=-dir.x*drag, y=-gravity, z=-dir.z*drag})
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obj:setyaw(player:get_look_horizontal()+(math.pi*1.5))
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minetest.sound_play("spears_sound", {pos=playerpos})
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obj:get_luaentity().wear = itemstack:get_wear()
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obj:get_luaentity().shooter = player
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return true
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end
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local function spears_set_entity(kind, eq, toughness, breadth)
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local spearname = "nssm:spear_"..kind
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local spearentityname = spearname.."_entity"
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local maxwear = 65535
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local weardown = maxwear/toughness
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breadth = breadth or 1
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local SPEAR_ENTITY = {
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physical = false,
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timer = 0,
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visual = "wielditem",
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visual_size = {x=0.15, y=0.1},
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textures = {spearname},
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lastpos = {},
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collisionbox = {0,0,0,0,0,0},
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on_punch = function(self, puncher)
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-- pick up item
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if puncher then
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if puncher:is_player() then
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local stack = {name=spearname, wear=self.wear}
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local inv = puncher:get_inventory()
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if inv:room_for_item("main", stack) then
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inv:add_item("main", stack)
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self.object:remove()
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end
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end
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end
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end,
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}
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SPEAR_ENTITY.on_step = function(self, dtime)
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self.timer = self.timer+dtime
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local pos = self.object:getpos()
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local node = minetest.get_node(pos)
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if not self.wear then
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self.object:remove()
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return
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end
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-- pos exists --> entity has moved at least once
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if self.lastpos.x then
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if node.name ~= "air" -- not air, walkable
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and is_walkable(node.name)
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then
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self.object:remove()
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local halfweardown = weardown/2
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if self.wear+halfweardown < maxwear then
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minetest.add_item(self.lastpos, {name=spearname, wear=self.wear+halfweardown})
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end
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-- air or non-walkable
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else
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local objs = minetest.get_objects_inside_radius({x=pos.x,y=pos.y,z=pos.z}, 1.5*breadth)
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local add_at
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for k, obj in pairs(objs) do
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if obj:get_luaentity() ~= nil then
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if obj:get_luaentity().name ~= spearentityname and obj:get_luaentity().name ~= "__builtin:item" then
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if not (obj:is_player() and obj:get_luaentity().shooter:get_player_name() == obj:get_player_name() ) then
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local speed = vector.length(self.object:getvelocity()) / statmodifier
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local damage = (speed + eq)^1.12-20
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obj:punch(self.object, 1.0, {
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full_punch_interval=1.0,
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damage_groups={fleshy=damage},
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}, nil)
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self.object:remove()
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-- Wear down for each mob hit
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if self.wear+weardown < maxwear then
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self.wear = self.wear+weardown
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add_at = {pos = self.lastpos, def={name=spearname, wear=self.wear}}
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end
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end
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end
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end
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end
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if add_at then
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minetest.add_item(add_at.pos, add_at.def)
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end
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end
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end
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self.lastpos={x=pos.x, y=pos.y, z=pos.z}
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end -- entity step definition
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return SPEAR_ENTITY
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end
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--Tools
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function spears_register_spear(kind, desc, eq, toughness, material, scale)
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scale = scale or 1
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minetest.register_tool("nssm:spear_" .. kind, {
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description = desc .. " Spear",
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wield_image = "spear_" .. kind .. ".png",
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inventory_image = "spear_" .. kind .. ".png^[transform4",
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wield_scale= {x=2*scale, y=1*scale, z=1*scale},
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on_drop = function(itemstack, user, pointed_thing)
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spears_shot(itemstack, user)
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if not creative_mode then
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itemstack:take_item()
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end
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return itemstack
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end,
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groups = {webdigger = 3},
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tool_capabilities = {
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full_punch_interval = 1.3,
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max_drop_level=1,
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groupcaps={
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snappy = {times={[3]=0.2, [2]=0.2, [1]=0.2}, uses=toughness, maxlevel=1},
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},
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damage_groups = {fleshy=eq},
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}
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})
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local SPEAR_ENTITY=spears_set_entity(kind, eq, toughness, scale)
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minetest.register_entity("nssm:spear_" .. kind .. "_entity", SPEAR_ENTITY)
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minetest.register_craft({
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output = 'nssm:spear_' .. kind,
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recipe = {
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{'group:wood', 'group:wood', material},
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}
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})
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minetest.register_craft({
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output = 'nssm:spear_' .. kind,
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recipe = {
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{material, 'group:wood', 'group:wood'},
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}
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})
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end
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spears_register_spear('duck_beak', 'Duck Beak', 5, 12, 'nssm:duck_beak')
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spears_register_spear('manticore', 'Manticore', 8, 16, 'nssm:manticore_spine')
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spears_register_spear('felucco_horn', 'Felucco Horn', 7, 18, 'nssm:felucco_horn')
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spears_register_spear('mantis', 'Mantis', 6, 20, 'nssm:mantis_claw')
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spears_register_spear('little_ice_tooth', 'Little Ice Tooth', 7, 20, 'nssm:little_ice_tooth')
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spears_register_spear('ant', 'Ant', 6, 50, 'nssm:ant_mandible')
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spears_register_spear('ice_tooth', 'Ice Tooth', 16, 200, 'nssm:ice_tooth')
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spears_register_spear('of_peace', 'Serenity', 30, 300, 'nssm:wrathful_moranga', 2)
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