jordan4ibanez's improved grenade

init.lua

@@ -16,37 +16,63 @@ tnt.register_tnt(def)
 
 minetest.register_craftitem("grenade:grenade", {
 	description = "Grenade",
-	inventory_image = "default_coal_lump.png",
+	inventory_image = "grenade_grenade.png",
 	on_use = function(itemstack, user, pointed_thing)
 		local v = user:get_look_dir()
 		local pos = user:getpos()
 		pos.y = pos.y + 1.2
 
 		local obj = minetest.add_entity(pos, "grenade:grenade")
-		obj:setvelocity({x = v.x * 4, y = v.y * 2 + 4, z = v.z * 4})
-		obj:setacceleration({x = v.x / 4, y = v.y / 2 - 4, z = v.z / 4})
+		--play sound when throwing
+		minetest.sound_play("tnt_ignite", {
+			max_hear_distance = 20,
+			gain = 10.0,
+			object = obj,
+		})
+		obj:setvelocity({x = v.x * 7, y = v.y * 7 + 4, z = v.z * 7})
+		obj:setacceleration({x = 0, y = -10, z = 0})
 
 		itemstack:take_item()
 		return itemstack
 	end,
 })
 
+
 minetest.register_entity("grenade:grenade", {
 	physical = true,
 	collide_with_objects = true,
 	weight = 5,
 	collisionbox = {-0.25, -0.25, -0.25, 0.25, 0.25, 0.25},
-	textures = {"default_coal_lump.png"},
+	textures = {"grenade_grenade.png"},
 	on_activate = function(self, staticdata)
 		self.timer = 0
 	end,
 	on_step = function(self, dtime)
-		local acc = self.object:getacceleration()
-		self.object:setacceleration({x = acc.x * 2 / 4, y = acc.y, z = acc.z * 2 / 4})
-
+		local vel = self.object:getvelocity()
+		--standard blow up on timer
 		self.timer = self.timer + dtime
-		if self.timer > 4 then
+		if self.timer > 4 or vel.y == 0 then
 			tnt.boom(self.object:getpos(), def)
+			return -- to not crash
 		end
+		--Make grenades blow up when they hit something
+		if self.oldvel then
+		if  (math.abs(self.oldvel.x) ~= 0 and vel.x == 0) or
+			(math.abs(self.oldvel.y) ~= 0 and vel.y == 0) or
+			(math.abs(self.oldvel.z) ~= 0 and vel.z == 0) then
+			tnt.boom(self.object:getpos(), def)
+			return -- to not crash
+		end
+		end
+		
+		self.oldvel = vel
 	end,
 })
+minetest.register_craft({
+	output = "grenade:grenade",
+	recipe = {
+		{"default:stick", "default:steel_ingot", ""},
+		{"default:steel_ingot", "default:coal_lump", "default:steel_ingot"},
+		{"", "default:steel_ingot", ""}
+	}
+})