Add sniper_rifles mod (#453)

mods/ctf/ctf_classes/classes.lua

@@ -45,6 +45,8 @@ ctf_classes.register("shooter", {
 			"shooter_guns:rifle",
 			"shooter_guns:machine_gun",
 			"shooter_guns:shotgun",
+			"sniper_rifles:rifle_762",
+			"sniper_rifles:rifle_magnum"
 		},
 
 		shooter_multipliers = {

mods/ctf/ctf_crafting/init.lua

@@ -150,6 +150,24 @@ crafting.register_recipe({
 	level  = 1,
 })
 
+-- 7.62mm sniper rifle (unloaded)
+crafting.register_recipe({
+	type   = "inv",
+	output = "sniper_rifles:rifle_762",
+	items  = { "default:steelblock", "default:bronze_ingot 5", "default:mese_crystal", "default:wood" },
+	always_known = true,
+	level  = 1
+})
+
+-- Magnum sniper rifle (unloaded)
+crafting.register_recipe({
+	type   = "inv",
+	output = "sniper_rifles:rifle_magnum",
+	items  = { "default:steelblock", "default:bronzeblock", "default:diamond", "default:wood" },
+	always_known = true,
+	level  = 1,
+})
+
 -- Wooden ladder x4
 crafting.register_recipe({
 	type   = "inv",

mods/ctf/ctf_treasure/init.lua

@@ -24,6 +24,9 @@ function ctf_treasure.get_default_treasures()
 		{ "shooter:ammo",        0.3,  2, { 1, 10 } },
 		{ "shooter:arrow_white", 0.5,  2, { 2, 18 } },
 
+		{ "sniper_rifles:rifle_762_loaded",     0.1, 2, 1 },
+		{ "sniper_rifles:rifle_magnum_loaded", 0.01, 2, 1 },
+
 		{ "medkits:medkit",       0.8, 5, 2 },
 	}
 end

mods/other/random_messages/init.lua

@@ -77,6 +77,7 @@ function random_messages.read_messages()
 		"Change your class in your base by right clicking the home flag or typing /class.",
 		"Medics cause troops within 10 metres to regenerate health faster.",
 		"Hitting your enemy does more damage than not hitting them.",
+		"Press right mouse button or double-tap the screen to activate scope while wielding a sniper rifle."
 	}
 end
 

mods/pvp/sniper_rifles/LICENSE

@@ -0,0 +1,22 @@
+MIT License
+
+Code    : Copyright (c) 2019 Anand S, ClobberXD
+Textures: Copyright (c) 2020 LoneWolfHT
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

mods/pvp/sniper_rifles/README.md

@@ -0,0 +1,13 @@
+# Sniper Rifles
+
+This mod adds sniper rifles which behave like over-powered rifles, with the addition of the ability to toggle scoping using RMB (by default).
+
+## Licenses
+
+- Code license: MIT
+- Media license: CC0 1.0
+
+### Attributions
+
+- `sniper_rifles_rifle.ogg` (`CC0 1.0`)
+  - Converted from [Battle Rifle.wav](https://freesound.org/people/morganpurkis/sounds/391725/) by [morganpurkis](https://freesound.org/people/morganpurkishttps://freesound.org/people/morganpurkis/sounds/391725/).

mods/pvp/sniper_rifles/init.lua

@@ -0,0 +1,104 @@
+------------------
+-- Private data --
+------------------
+
+-- Keep track of players who are scoping in, and their wielded item
+local scoped = {}
+
+-- Timer for scope-check globalstep
+local timer = 0.2
+
+-------------
+-- Helpers --
+-------------
+
+local function show_scope(name, item_name, fov_mult)
+	local player = minetest.get_player_by_name(name)
+	if not player then
+		return
+	end
+
+	scoped[name] = item_name
+	-- e.g. if fov_mult == 8, then FOV = 1/8 * current_FOV, a.k.a 8x zoom
+	player:set_fov(1 / fov_mult, true)
+	player:hud_set_flags({ wielditem = false })
+end
+
+local function hide_scope(name)
+	local player = minetest.get_player_by_name(name)
+	if not player then
+		return
+	end
+
+	scoped[name] = nil
+	player:set_fov(0)
+	player:hud_set_flags({ wielditem = true })
+end
+
+local function on_rclick(item, placer, pointed_thing)
+	if pointed_thing.type == "object" then
+		return
+	end
+
+	local name = placer:get_player_name()
+	if scoped[name] then
+		hide_scope(name)
+	else
+		-- Remove _loaded suffix added to item name by shooter
+		local item_name = item:get_name():gsub("_loaded", "")
+		local fov_mult = shooter.registered_weapons[item_name].fov_mult
+		show_scope(name, item_name, fov_mult)
+	end
+end
+
+------------------
+-- Sccope-check --
+------------------
+
+-- Hide scope if currently wielded item is not the same item
+-- player wielded when scoping
+
+local time = 0
+minetest.register_globalstep(function(dtime)
+	time = time + dtime
+	if time < timer then
+		return
+	end
+
+	time = 0
+	for name, original_item in pairs(scoped) do
+		local player = minetest.get_player_by_name(name)
+		if not player then
+			scoped[name] = nil
+		else
+			local wielded_item = player:get_wielded_item():get_name():gsub("_loaded", "")
+			if wielded_item ~= original_item then
+				hide_scope(name)
+			end
+		end
+	end
+end)
+
+----------------------------
+-- Rifle registration API --
+----------------------------
+
+sniper_rifles = {}
+
+function sniper_rifles.register_rifle(name, def)
+	assert(def.fov_mult, "Rifle definition must contain FOV multiplier (fov_mult)!")
+
+	shooter.register_weapon(name, def)
+
+	-- Manually add extra fields to itemdef that shooter doesn't allow
+	-- Also modify the _loaded variant
+	local overrides = {
+		on_secondary_use = on_rclick,
+		wield_scale = vector.new(2, 2, 1.5)
+	}
+	minetest.override_item(name, overrides)
+	minetest.override_item(name .. "_loaded", overrides)
+
+end
+
+dofile(minetest.get_modpath(minetest.get_current_modname()) .. "/rifles.lua")

mods/pvp/sniper_rifles/mod.conf

@@ -0,0 +1,3 @@
+name = sniper_rifles
+depends = shooter
+description = This mod adds a couple of sniper rifles that make use of the zoom_fov player property to scope in.

mods/pvp/sniper_rifles/rifles.lua

@@ -0,0 +1,37 @@
+-- Basic 7.62mm rifle
+sniper_rifles.register_rifle("sniper_rifles:rifle_762", {
+	description = "Sniper rifle (7.62mm)",
+	inventory_image = "sniper_rifles_rifle_762.png",
+	fov_mult = 4,
+	spec = {
+		rounds    = 30,
+		range     = 300,
+		step      = 30,
+		tool_caps = { full_punch_interval = 1.5, damage_groups = { fleshy = 12 } },
+		sounds    = { shot = "sniper_rifles_rifle" },
+		particle  = "shooter_bullet.png",
+		groups    = {
+			cracky = 3, snappy = 2, crumbly = 2, choppy = 2,
+			fleshy = 1, oddly_breakable_by_hand = 1
+		}
+	}
+})
+
+-- Magnum rifle
+sniper_rifles.register_rifle("sniper_rifles:rifle_magnum", {
+	description = "Sniper rifle (Magnum)",
+	inventory_image = "sniper_rifles_rifle_magnum.png",
+	fov_mult = 8,
+	spec = {
+		rounds    = 20,
+		range     = 400,
+		step      = 30,
+		tool_caps = { full_punch_interval = 2, damage_groups = { fleshy = 16 } },
+		sounds    = { shot = "sniper_rifles_rifle" },
+		particle  = "shooter_bullet.png",
+		groups    = {
+			cracky = 2, snappy = 1, crumbly = 1, choppy = 1,
+			fleshy = 1, oddly_breakable_by_hand = 1
+		}
+	}
+})