diff options
Diffstat (limited to 'technic/technic/tools/mining_lasers.lua')
| -rw-r--r-- | technic/technic/tools/mining_lasers.lua | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/technic/technic/tools/mining_lasers.lua b/technic/technic/tools/mining_lasers.lua new file mode 100644 index 0000000..4c83ae9 --- /dev/null +++ b/technic/technic/tools/mining_lasers.lua @@ -0,0 +1,178 @@ +local mining_lasers_list = { +-- {<num>, <range of the laser shots>, <max_charge>, <charge_per_shot>}, + {"1", 7, 50000, 1000}, + {"2", 14, 200000, 2000}, + {"3", 21, 650000, 3000}, +} + +local S = technic.getter + +minetest.register_craft({ + output = 'technic:laser_mk1', + recipe = { + {'default:diamond', 'technic:brass_ingot', 'default:obsidian_glass'}, + {'', 'technic:brass_ingot', 'technic:red_energy_crystal'}, + {'', '', 'default:copper_ingot'}, + } +}) +minetest.register_craft({ + output = 'technic:laser_mk2', + recipe = { + {'default:diamond', 'technic:carbon_steel_ingot', 'technic:laser_mk1'}, + {'', 'technic:carbon_steel_ingot', 'technic:green_energy_crystal'}, + {'', '', 'default:copper_ingot'}, + } +}) +minetest.register_craft({ + output = 'technic:laser_mk3', + recipe = { + {'default:diamond', 'technic:carbon_steel_ingot', 'technic:laser_mk2'}, + {'', 'technic:carbon_steel_ingot', 'technic:blue_energy_crystal'}, + {'', '', 'default:copper_ingot'}, + } +}) + +-- Based on code by Uberi: https://gist.github.com/Uberi/3125280 +local function rayIter(pos, dir, range) + local p = vector.round(pos) + local x_step, y_step, z_step = 0, 0, 0 + local x_component, y_component, z_component = 0, 0, 0 + local x_intersect, y_intersect, z_intersect = 0, 0, 0 + + if dir.x == 0 then + x_intersect = math.huge + elseif dir.x > 0 then + x_step = 1 + x_component = 1 / dir.x + x_intersect = x_component + else + x_step = -1 + x_component = 1 / -dir.x + end + if dir.y == 0 then + y_intersect = math.huge + elseif dir.y > 0 then + y_step = 1 + y_component = 1 / dir.y + y_intersect = y_component + else + y_step = -1 + y_component = 1 / -dir.y + end + if dir.z == 0 then + z_intersect = math.huge + elseif dir.z > 0 then + z_step = 1 + z_component = 1 / dir.z + z_intersect = z_component + else + z_step = -1 + z_component = 1 / -dir.z + end + + return function() + if x_intersect < y_intersect then + if x_intersect < z_intersect then + p.x = p.x + x_step + x_intersect = x_intersect + x_component + else + p.z = p.z + z_step + z_intersect = z_intersect + z_component + end + elseif y_intersect < z_intersect then + p.y = p.y + y_step + y_intersect = y_intersect + y_component + else + p.z = p.z + z_step + z_intersect = z_intersect + z_component + end + if vector.distance(pos, p) > range then + return nil + end + return p + end +end + +local function laser_node(pos, node, player) + local def = minetest.registered_nodes[node.name] + if def and def.liquidtype ~= "none" then + minetest.remove_node(pos) + minetest.add_particle({ + pos = pos, + vel = {x=0, y=2, z=0}, + acc = {x=0, y=-1, z=0}, + expirationtime = 1.5, + size = 6 + math.random() * 2, + texture = "smoke_puff.png^[transform" .. math.random(0, 7), + }) + return + end + minetest.node_dig(pos, node, player) +end + +local no_destroy = { + ["air"] = true, + ["default:lava_source"] = true, + ["default:lava_flowing"] = true, +} +local function laser_shoot(player, range, particle_texture, sound) + local player_pos = player:getpos() + local player_name = player:get_player_name() + local dir = player:get_look_dir() + + local start_pos = vector.new(player_pos) + -- Adjust to head height + start_pos.y = start_pos.y + 1.9 + minetest.add_particle({ + pos = startpos, + vel = dir, + acc = vector.multiply(dir, 50), + expirationtime = range / 11, + size = 1, + texture = particle_texture .. "^[transform" .. math.random(0, 7), + }) + minetest.sound_play(sound, {pos = player_pos, max_hear_distance = range}) + for pos in rayIter(start_pos, dir, range) do + if minetest.is_protected(pos, player_name) then + minetest.record_protection_violation(pos, player_name) + break + end + local node = minetest.get_node_or_nil(pos) + if not node then + break + end + if not no_destroy[node.name] then + laser_node(pos, node, player) + end + end +end + + +for _, m in pairs(mining_lasers_list) do + technic.register_power_tool("technic:laser_mk"..m[1], m[3]) + minetest.register_tool("technic:laser_mk"..m[1], { + description = S("Mining Laser Mk%d"):format(m[1]), + inventory_image = "technic_mining_laser_mk"..m[1]..".png", + stack_max = 1, + wear_represents = "technic_RE_charge", + on_refill = technic.refill_RE_charge, + on_use = function(itemstack, user) + local meta = minetest.deserialize(itemstack:get_metadata()) + if not meta or not meta.charge then + return + end + + -- If there's enough charge left, fire the laser + if meta.charge >= m[4] then + laser_shoot(user, m[2], "technic_laser_beam_mk"..m[1]..".png", "technic_laser_mk"..m[1]) + if not technic.creative_mode then + meta.charge = meta.charge - m[4] + technic.set_RE_wear(itemstack, meta.charge, m[3]) + itemstack:set_metadata(minetest.serialize(meta)) + end + end + return itemstack + end, + }) +end + |