mirror of
https://github.com/pandorabox-io/spacecannon.git
synced 2025-03-09 20:02:29 +01:00
red/green/yellow cannon
This commit is contained in:
Thomas Rudin
278
cannon.lua
278
cannon.lua
@ -1,172 +1,132 @@
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local has_technic_mod = minetest.get_modpath("technic")
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local destroy = function(pos,range)
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for x=-range,range do
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for y=-range,range do
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for z=-range,range do
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if x*x+y*y+z*z <= range * range + range then
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local np={x=pos.x+x,y=pos.y+y,z=pos.z+z}
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local register_spacecannon = function(color, range, timeout, speed)
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if minetest.is_protected(np, "") then
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return -- fail fast
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end
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local entity_texture = "energycube_" .. color .. ".png"
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local n = minetest.env:get_node(np)
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if n.name ~= "air" then
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minetest.env:remove_node(np)
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end
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minetest.register_entity("spacecannon:energycube_" .. color, {
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initial_properties = {
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visual = "cube",
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visual_size = {x=0.25, y=0.25},
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textures = {entity_texture,entity_texture,entity_texture,entity_texture,entity_texture,entity_texture},
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collisionbox = {-0.25,-0.25,-0.25, 0.25,0.25,0.25},
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physical = false,
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},
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on_step = function(self, 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 node.name == "air" then
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local objs = minetest.get_objects_inside_radius({x=pos.x,y=pos.y,z=pos.z}, 3)
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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 ~= self.name and obj:get_luaentity().name ~= "__builtin:item" then --something other found
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local mob = obj
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-- self.on_mob_hit(self,pos,mob)
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end
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elseif obj:is_player() then --player found
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local player = obj
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-- self.on_player_hit(self,pos,player)
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end
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end
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elseif node.name ~= "air" then
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-- collision
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spacecannon.destroy(pos, range)
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self.object:remove()
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end
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end,
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on_activate = function(self, staticdata)
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minetest.after(timeout,
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function(self)
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self.object:remove()
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end,
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self)
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end
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})
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minetest.register_node("spacecannon:cannon_" .. color, {
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description = "Spacecannon (" .. color .. ")",
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-- top, bottom
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tiles = {"cannon_blank.png","cannon_front_" .. color .. ".png","cannon_blank.png","cannon_blank.png","cannon_blank.png","cannon_blank.png"},
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groups = {cracky=3,oddly_breakable_by_hand=3,technic_machine = 1, technic_hv = 1},
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drop = "spacecannon:cannon_" .. color,
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sounds = default.node_sound_glass_defaults(),
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paramtype2 = "facedir",
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mesecons = {effector = {
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action_on = function (pos, node)
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local dir = spacecannon.facedir_to_down_dir(node.param2)
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local obj = minetest.add_entity({x=pos.x+dir.x, y=pos.y+dir.y, z=pos.z+dir.z}, "spacecannon:energycube_" .. color)
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obj:setvelocity({x=dir.x*speed, y=dir.y*speed, z=dir.z*speed})
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end
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}},
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connects_to = {"group:technic_hv_cable"},
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connect_sides = {"bottom", "top", "left", "right", "front", "back"},
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after_place_node = function(pos, placer)
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local meta = minetest.get_meta(pos)
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meta:set_string("owner", placer:get_player_name() or "")
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end,
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_int("powerstorage", 0)
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if has_technic_mod then
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meta:set_int("HV_EU_input", 0)
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meta:set_int("HV_EU_demand", 0)
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end
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end,
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technic_run = function(pos, node)
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local meta = minetest.get_meta(pos)
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local eu_input = meta:get_int("HV_EU_input")
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local demand = meta:get_int("HV_EU_demand")
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local store = meta:get_int("powerstorage")
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meta:set_string("infotext", "Power: " .. eu_input .. "/" .. demand .. " Store: " .. store)
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if store < spacecannon.config.powerstorage then
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-- charge
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meta:set_int("HV_EU_demand", spacecannon.config.powerrequirement)
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store = store + eu_input
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meta:set_int("powerstorage", store)
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else
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-- charged
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meta:set_int("HV_EU_demand", 0)
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end
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end
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})
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if has_technic_mod then
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technic.register_machine("HV", "spacecannon:cannon_" .. color, technic.receiver)
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end
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--[[
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minetest.register_craft({
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output = 'spacecannon:cannon_' .. color,
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recipe = {
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{'', 'default:tnt', ''},
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{'default:diamond', 'default:mese_block', 'default:diamond'},
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{'', 'default:tnt', ''}
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}
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})
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--]]
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end
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minetest.register_entity("spacecannon:energycube", {
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initial_properties = {
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visual = "cube",
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visual_size = {x=0.25, y=0.25},
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textures = {"energycube_red.png","energycube_red.png","energycube_red.png","energycube_red.png","energycube_red.png","energycube_red.png"},
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collisionbox = {-0.25,-0.25,-0.25, 0.25,0.25,0.25},
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physical = false,
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},
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register_spacecannon("green", 1, 8, 10)
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register_spacecannon("yellow", 3, 8, 5)
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register_spacecannon("red", 5, 15, 3)
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on_step = function(self, 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 node.name == "air" then
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local objs = minetest.get_objects_inside_radius({x=pos.x,y=pos.y,z=pos.z}, 3)
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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 ~= self.name and obj:get_luaentity().name ~= "__builtin:item" then --something other found
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local mob = obj
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-- self.on_mob_hit(self,pos,mob)
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end
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elseif obj:is_player() then --player found
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local player = obj
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-- self.on_player_hit(self,pos,player)
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end
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end
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elseif node.name ~= "air" then
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-- collision
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destroy(pos, 1)
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self.object:remove()
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local radius = 1
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-- https://github.com/minetest/minetest_game/blob/master/mods/tnt/init.lua
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minetest.add_particlespawner({
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amount = 64,
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time = 0.5,
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minpos = vector.subtract(pos, radius / 2),
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maxpos = vector.add(pos, radius / 2),
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minvel = {x = -10, y = -10, z = -10},
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maxvel = {x = 10, y = 10, z = 10},
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minacc = vector.new(),
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maxacc = vector.new(),
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minexptime = 1,
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maxexptime = 2.5,
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minsize = radius * 3,
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maxsize = radius * 5,
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texture = "spacecannon_spark.png",
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})
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minetest.sound_play("tnt_explode", {pos = pos, gain = 1.5, max_hear_distance = math.min(radius * 20, 128)})
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end
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end,
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on_activate = function(self, staticdata)
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minetest.after(8.0,
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function(self)
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self.object:remove()
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end,
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self)
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end,
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on_rightclick=function(self, clicker)
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end,
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on_punch = function(self, hitter)
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end,
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})
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local facedir_to_down_dir = function(facing)
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return (
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{[0]={x=0, y=-1, z=0},
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{x=0, y=0, z=-1},
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{x=0, y=0, z=1},
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{x=-1, y=0, z=0},
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{x=1, y=0, z=0},
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{x=0, y=1, z=0}})[math.floor(facing/4)]
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end
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minetest.register_node("spacecannon:cannon", {
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description = "Spacecannon",
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-- top, bottom
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tiles = {"cannon_blank.png","cannon_front_red.png","cannon_blank.png","cannon_blank.png","cannon_blank.png","cannon_blank.png"},
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groups = {cracky=3,oddly_breakable_by_hand=3,technic_machine = 1, technic_hv = 1},
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drop = "spacecannon:cannon",
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sounds = default.node_sound_glass_defaults(),
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paramtype2 = "facedir",
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mesecons = {effector = {
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action_on = function (pos, node)
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local dir = facedir_to_down_dir(node.param2)
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local obj = minetest.add_entity({x=pos.x+dir.x, y=pos.y+dir.y, z=pos.z+dir.z}, "spacecannon:energycube")
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local speed = 3
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obj:setvelocity({x=dir.x*speed, y=dir.y*speed, z=dir.z*speed})
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end
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}},
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connects_to = {"group:technic_hv_cable"},
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connect_sides = {"bottom", "top", "left", "right", "front", "back"},
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after_place_node = function(pos, placer)
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local meta = minetest.get_meta(pos)
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meta:set_string("owner", placer:get_player_name() or "")
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end,
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_int("powerstorage", 0)
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if has_technic_mod then
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meta:set_int("HV_EU_input", 0)
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meta:set_int("HV_EU_demand", 0)
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end
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end,
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technic_run = function(pos, node)
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local meta = minetest.get_meta(pos)
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local eu_input = meta:get_int("HV_EU_input")
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local demand = meta:get_int("HV_EU_demand")
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local store = meta:get_int("powerstorage")
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meta:set_string("infotext", "Power: " .. eu_input .. "/" .. demand .. " Store: " .. store)
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if store < spacecannon.config.powerstorage then
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-- charge
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meta:set_int("HV_EU_demand", spacecannon.config.powerrequirement)
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store = store + eu_input
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meta:set_int("powerstorage", store)
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else
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-- charged
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meta:set_int("HV_EU_demand", 0)
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end
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end
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})
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if has_technic_mod then
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technic.register_machine("HV", "spacecannon:cannon", technic.receiver)
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end
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minetest.register_craft({
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output = 'spacecannon:cannon',
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recipe = {
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{'', 'default:tnt', ''},
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{'default:diamond', 'default:mese_block', 'default:diamond'},
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{'', 'default:tnt', ''}
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}
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})
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1
init.lua
1
init.lua
@ -12,6 +12,7 @@ spacecannon = {
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local MP = minetest.get_modpath("spacecannon")
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dofile(MP.."/util.lua")
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dofile(MP.."/cannon.lua")
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print("[OK] Spacecannon")
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57
util.lua
Normal file
57
util.lua
Normal file
@ -0,0 +1,57 @@
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-- destroy stuff in range
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spacecannon.destroy = function(pos,range)
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for x=-range,range do
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for y=-range,range do
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for z=-range,range do
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if x*x+y*y+z*z <= range * range + range then
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local np={x=pos.x+x,y=pos.y+y,z=pos.z+z}
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if minetest.is_protected(np, "") then
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return -- fail fast
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end
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local n = minetest.env:get_node(np)
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if n.name ~= "air" then
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minetest.env:remove_node(np)
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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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local radius = range
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-- https://github.com/minetest/minetest_game/blob/master/mods/tnt/init.lua
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minetest.add_particlespawner({
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amount = 64,
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time = 0.5,
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minpos = vector.subtract(pos, radius / 2),
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maxpos = vector.add(pos, radius / 2),
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minvel = {x = -10, y = -10, z = -10},
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maxvel = {x = 10, y = 10, z = 10},
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minacc = vector.new(),
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maxacc = vector.new(),
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minexptime = 1,
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maxexptime = 2.5,
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minsize = radius * 3,
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maxsize = radius * 5,
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texture = "spacecannon_spark.png",
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})
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minetest.sound_play("tnt_explode", {pos = pos, gain = 1.5, max_hear_distance = math.min(radius * 20, 128)})
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end
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-- convert face dir to vector
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spacecannon.facedir_to_down_dir = function(facing)
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return (
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{[0]={x=0, y=-1, z=0},
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{x=0, y=0, z=-1},
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{x=0, y=0, z=1},
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{x=-1, y=0, z=0},
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{x=1, y=0, z=0},
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{x=0, y=1, z=0}})[math.floor(facing/4)]
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end
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