|
| 1 | +local S = minetest.get_translator(minetest.get_current_modname()) |
| 2 | + |
| 3 | +local function remove_flora(pos, radius) |
| 4 | + local pos1 = vector.subtract(pos, radius) |
| 5 | + local pos2 = vector.add(pos, radius) |
| 6 | + |
| 7 | + for _, p in ipairs(minetest.find_nodes_in_area(pos1, pos2, { |
| 8 | + "group:flora", "group:mushroom", "default:snow", "group:grenade_breakable" |
| 9 | + })) do |
| 10 | + if vector.distance(pos, p) <= radius then |
| 11 | + minetest.remove_node(p) |
| 12 | + end |
| 13 | + end |
| 14 | +end |
| 15 | + |
| 16 | +local function check_hit(pos1, pos2, obj) |
| 17 | + local ray = minetest.raycast(pos1, pos2, true, false) |
| 18 | + local hit = ray:next() |
| 19 | + |
| 20 | + -- Skip over non-normal nodes like ladders, water, doors, glass, leaves, etc |
| 21 | + -- Also skip over all objects that aren't the target |
| 22 | + -- Any collisions within a 1 node distance from the target don't stop the grenade |
| 23 | + while hit and ( |
| 24 | + ( |
| 25 | + hit.type == "node" |
| 26 | + and |
| 27 | + ( |
| 28 | + hit.intersection_point:distance(pos2) <= 1 |
| 29 | + or |
| 30 | + not minetest.registered_nodes[minetest.get_node(hit.under).name].walkable |
| 31 | + ) |
| 32 | + ) |
| 33 | + or |
| 34 | + ( |
| 35 | + hit.type == "object" and hit.ref ~= obj |
| 36 | + ) |
| 37 | + ) do |
| 38 | + hit = ray:next() |
| 39 | + end |
| 40 | + |
| 41 | + if hit and hit.type == "object" and hit.ref == obj then |
| 42 | + return true |
| 43 | + end |
| 44 | +end |
| 45 | + |
| 46 | +local fragdef = { |
| 47 | + description = S("Frag grenade (Kills anyone near blast)"), |
| 48 | + image = "grenades_frag.png", |
| 49 | + explode_radius = 10, |
| 50 | + explode_damage = 26, |
| 51 | + on_collide = function() |
| 52 | + return true |
| 53 | + end, |
| 54 | + on_explode = function(def, obj, pos, name) |
| 55 | + if not name or not pos then return end |
| 56 | + |
| 57 | + local player = minetest.get_player_by_name(name) |
| 58 | + if not player then return end |
| 59 | + |
| 60 | + local radius = def.explode_radius |
| 61 | + |
| 62 | + minetest.add_particlespawner({ |
| 63 | + amount = 20, |
| 64 | + time = 0.5, |
| 65 | + minpos = vector.subtract(pos, radius), |
| 66 | + maxpos = vector.add(pos, radius), |
| 67 | + minvel = {x = 0, y = 5, z = 0}, |
| 68 | + maxvel = {x = 0, y = 7, z = 0}, |
| 69 | + minacc = {x = 0, y = 1, z = 0}, |
| 70 | + maxacc = {x = 0, y = 1, z = 0}, |
| 71 | + minexptime = 0.3, |
| 72 | + maxexptime = 0.6, |
| 73 | + minsize = 7, |
| 74 | + maxsize = 10, |
| 75 | + collisiondetection = true, |
| 76 | + collision_removal = false, |
| 77 | + vertical = false, |
| 78 | + texture = "grenades_smoke.png", |
| 79 | + }) |
| 80 | + |
| 81 | + minetest.add_particle({ |
| 82 | + pos = pos, |
| 83 | + velocity = {x=0, y=0, z=0}, |
| 84 | + acceleration = {x=0, y=0, z=0}, |
| 85 | + expirationtime = 0.3, |
| 86 | + size = 15, |
| 87 | + collisiondetection = false, |
| 88 | + collision_removal = false, |
| 89 | + object_collision = false, |
| 90 | + vertical = false, |
| 91 | + texture = "grenades_boom.png", |
| 92 | + glow = 10 |
| 93 | + }) |
| 94 | + |
| 95 | + minetest.sound_play("grenades_explode", { |
| 96 | + pos = pos, |
| 97 | + gain = 1.0, |
| 98 | + max_hear_distance = 64, |
| 99 | + }) |
| 100 | + |
| 101 | + remove_flora(pos, radius/2) |
| 102 | + |
| 103 | + for _, v in pairs(minetest.get_objects_inside_radius(pos, radius)) do |
| 104 | + if v:is_player() and v:get_hp() > 0 and v:get_properties().pointable then |
| 105 | + local footpos = vector.offset(v:get_pos(), 0, 0.1, 0) |
| 106 | + local headpos = vector.offset(v:get_pos(), 0, v:get_properties().eye_height, 0) |
| 107 | + local footdist = vector.distance(pos, footpos) |
| 108 | + local headdist = vector.distance(pos, headpos) |
| 109 | + local target_head = false |
| 110 | + |
| 111 | + if footdist >= headdist then |
| 112 | + target_head = true |
| 113 | + end |
| 114 | + |
| 115 | + local hit_pos1 = check_hit(pos, target_head and headpos or footpos, v) |
| 116 | + |
| 117 | + -- Check the closest distance, but if that fails try targeting the farther one |
| 118 | + if hit_pos1 or check_hit(pos, target_head and footpos or headpos, v) then |
| 119 | + v:punch(player, 1, { |
| 120 | + punch_interval = 1, |
| 121 | + damage_groups = { |
| 122 | + grenade = 1, |
| 123 | + fleshy = def.explode_damage - ( (radius/3) * (target_head and headdist or footdist) ) |
| 124 | + } |
| 125 | + }, nil) |
| 126 | + end |
| 127 | + end |
| 128 | + end |
| 129 | + end, |
| 130 | +} |
| 131 | + |
| 132 | +grenades.register_grenade("ctf_grenades:frag", fragdef) |
| 133 | + |
| 134 | +-- Smoke Grenade |
| 135 | + |
| 136 | +local sounds = {} |
| 137 | +local SMOKE_GRENADE_TIME = 30 |
| 138 | + |
| 139 | +local register_smoke_grenade = function(name, description, image, damage) |
| 140 | + grenades.register_grenade("ctf_grenades:"..name, { |
| 141 | + description = description, |
| 142 | + image = image, |
| 143 | + on_collide = function() |
| 144 | + return true |
| 145 | + end, |
| 146 | + on_explode = function(def, obj, pos, pname) |
| 147 | + local player = minetest.get_player_by_name(pname) |
| 148 | + if not player or not pos then return end |
| 149 | + |
| 150 | + local pteam = ctf_teams.get(pname) |
| 151 | + local duration_multiplier = 1 |
| 152 | + -- it gets multiplied with the default duration |
| 153 | + |
| 154 | + if pteam then |
| 155 | + for flagteam, team in pairs(ctf_map.current_map.teams) do |
| 156 | + if not ctf_modebase.flag_captured[flagteam] and team.flag_pos then |
| 157 | + local distance_from_flag = vector.distance(pos, team.flag_pos) |
| 158 | + if distance_from_flag <= 15 and (damage or pteam == flagteam) then |
| 159 | + minetest.chat_send_player(pname, S("You can't explode smoke grenades so close to a flag!")) |
| 160 | + if player:get_hp() <= 0 then |
| 161 | + -- Drop the nade at its explode point if the thrower is dead |
| 162 | + -- Fixes https://github.com/MT-CTF/capturetheflag/issues/1160 |
| 163 | + minetest.add_item(pos, ItemStack("ctf_grenades:"..name)) |
| 164 | + else |
| 165 | + -- Add the nade back into the thrower's inventory |
| 166 | + player:get_inventory():add_item("main", "ctf_grenades:"..name) |
| 167 | + end |
| 168 | + return |
| 169 | + elseif damage and distance_from_flag <= 26 then |
| 170 | + duration_multiplier = 0.5 |
| 171 | + end |
| 172 | + end |
| 173 | + end |
| 174 | + end |
| 175 | + |
| 176 | + minetest.sound_play("grenades_glasslike_break", { |
| 177 | + pos = pos, |
| 178 | + gain = 1.0, |
| 179 | + max_hear_distance = 32, |
| 180 | + }) |
| 181 | + |
| 182 | + local hiss = minetest.sound_play("grenades_hiss", { |
| 183 | + pos = pos, |
| 184 | + gain = 1.0, |
| 185 | + loop = true, |
| 186 | + max_hear_distance = 32, |
| 187 | + }) |
| 188 | + sounds[hiss] = true |
| 189 | + local stop = false |
| 190 | + if damage then |
| 191 | + local function damage_fn() |
| 192 | + local thrower = minetest.get_player_by_name(pname) |
| 193 | + |
| 194 | + if thrower then |
| 195 | + for _, target in pairs(minetest.get_connected_players()) do |
| 196 | + if vector.distance(target:get_pos(), pos) <= 6 then |
| 197 | + local dname = target:get_player_name() |
| 198 | + local dteam = ctf_teams.get(dname) |
| 199 | + if dname ~= pname and dteam ~= pteam then |
| 200 | + target:punch(thrower, 1, { |
| 201 | + damage_groups = { |
| 202 | + fleshy = 2, |
| 203 | + grenade = 1, |
| 204 | + poison_grenade = 1, |
| 205 | + } |
| 206 | + }) |
| 207 | + end |
| 208 | + end |
| 209 | + end |
| 210 | + end |
| 211 | + |
| 212 | + if not stop then |
| 213 | + minetest.after(1, damage_fn) |
| 214 | + end |
| 215 | + end |
| 216 | + damage_fn() |
| 217 | + end |
| 218 | + |
| 219 | + minetest.after(SMOKE_GRENADE_TIME * duration_multiplier, function() |
| 220 | + sounds[hiss] = nil |
| 221 | + minetest.sound_stop(hiss) |
| 222 | + stop = true |
| 223 | + end) |
| 224 | + |
| 225 | + local p = "grenades_smoke.png^[" |
| 226 | + local particletexture |
| 227 | + if pteam and damage then |
| 228 | + particletexture = p .. "colorize:" .. ctf_teams.team[pteam].color .. ":76^[noalpha" |
| 229 | + else |
| 230 | + particletexture = p .. "noalpha" |
| 231 | + end |
| 232 | + |
| 233 | + for i = 0, 5, 1 do |
| 234 | + minetest.add_particlespawner({ |
| 235 | + amount = 40, |
| 236 | + time = (SMOKE_GRENADE_TIME * duration_multiplier) + (damage and 1 or 3), |
| 237 | + minpos = vector.subtract(pos, 2), |
| 238 | + maxpos = vector.add(pos, 2), |
| 239 | + minvel = {x = 0, y = 2, z = 0}, |
| 240 | + maxvel = {x = 0, y = 3, z = 0}, |
| 241 | + minacc = {x = 1, y = 0.2, z = 1}, |
| 242 | + maxacc = {x = 1, y = 0.2, z = 1}, |
| 243 | + minexptime = 1, |
| 244 | + maxexptime = 1, |
| 245 | + minsize = 125, |
| 246 | + maxsize = 140, |
| 247 | + collisiondetection = false, |
| 248 | + collision_removal = false, |
| 249 | + vertical = false, |
| 250 | + texture = particletexture, |
| 251 | + }) |
| 252 | + end |
| 253 | + end, |
| 254 | + particle = { |
| 255 | + image = "grenades_smoke.png".. (damage and "^[multiply:#00ff00" or ""), |
| 256 | + life = 1, |
| 257 | + size = 4, |
| 258 | + glow = 0, |
| 259 | + interval = 0.3, |
| 260 | + } |
| 261 | + }) |
| 262 | +end |
| 263 | + |
| 264 | +register_smoke_grenade( |
| 265 | + "smoke", |
| 266 | + S("Smoke grenade (Generates smoke around blast site)"), |
| 267 | + "grenades_smoke_grenade.png", |
| 268 | + false |
| 269 | +) |
| 270 | +register_smoke_grenade( |
| 271 | + "poison", |
| 272 | + S("Poison grenade (Generates poisonous smoke around blast site)"), |
| 273 | + "grenades_smoke_grenade.png^[multiply:#00ff00", |
| 274 | + true |
| 275 | +) |
| 276 | + |
| 277 | +ctf_api.register_on_match_end(function() |
| 278 | + for sound in pairs(sounds) do |
| 279 | + minetest.sound_stop(sound) |
| 280 | + end |
| 281 | + sounds = {} |
| 282 | +end) |
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