Added trailing smoke particles to the smoke grenade when thrown

API.md

@@ -18,6 +18,7 @@ Still WIP. Please suggest new features here: https://forum.minetest.net/viewtopi
             image = "grenades_smoke.png", -- The particle's image
             life = 1, -- How long (seconds) it takes for the particle to disappear
             size = 4, -- Size of the particle
-            glow = 0, -- brightens the texture in darkness
+            glow = 0, -- Brightens the texture in darkness
+            interval = 5, -- How long it takes before a particle can be added
         }
-	})`
+	})`

depends.txt

@@ -0,0 +1 @@
+default

grenades.lua

@@ -116,6 +116,7 @@ if not smoke or smoke == true then
             life = 1,
             size = 4,
             glow = 0,
+            interval = 5,
         }
     })
 end
@@ -130,7 +131,7 @@ if not settings:get_bool("enable_grenade_recipes") or settings:get_bool("enable_
 
     if not regular or regular == true then
         minetest.register_craft({
-            type = "shapeless",
+            type = "shaped",
             output = "grenades:grenade_regular",
             recipe = {
                 {"", "default:steel_ingot", ""},
@@ -144,7 +145,7 @@ if not settings:get_bool("enable_grenade_recipes") or settings:get_bool("enable_
 
     if not smoke or smoke == true then
         minetest.register_craft({
-            type = "shapeless",
+            type = "shaped",
             output = "grenades:grenade_smoke",
             recipe = {
                 {"", "default:steel_ingot", ""},
@@ -158,7 +159,7 @@ if not settings:get_bool("enable_grenade_recipes") or settings:get_bool("enable_
 
     if not flash or flash == true then
         minetest.register_craft({
-            type = "shapeless",
+            type = "shaped",
             output = "grenades:grenade_flashbang",
             recipe = {
                 {"", "default:steel_ingot", ""},

init.lua

@@ -28,13 +28,19 @@ function grenades.register_grenade(name, def)
             local node = minetest.get_node(pos)
             local obj = self.object
 
+            if self.particle == nil then
+                self.particle = 0
+            end
+
             if self.timer then
                 self.timer = self.timer + dtime
             else
                 self.timer = dtime
             end
 
-            if def.particle then
+            if def.particle and self.particle >= 4 then
+                self.particle = 0
+
                 minetest.add_particle({
                     pos = obj:get_pos(),
                     velocity = vector.divide(obj:get_velocity(), 2),
@@ -47,6 +53,8 @@ function grenades.register_grenade(name, def)
                     texture = def.particle.image,
                     glow = def.particle.glow
                 })
+            elseif def.particle and self.particle < def.particle.interval then
+                self.particle = self.particle + 1
             end
 
             if self.timer > def.timeout or node.name ~= "air" then