New drop system

README.txt

@@ -48,8 +48,11 @@ This mod add some functions that you can use in other mods:
 		walk_velocity: the velocity when the monster is walking around
 		run_velocity: the velocity when the monster is attacking a player
 		damage: the damage per second
-		drop: the drop item of the monster
+		drops: is list of tables with the following fields:
-		drop_count: the number of items that are dropped
+			name: itemname
+			chance: the inverted chance (same as in abm) to get the item
+			min: the minimum number of items
+			max: the maximum number of items
 		armor: the armor (integer)(3=lowest; 1=highest)(fleshy group is used)
 		drawtype: "front" or "side"
 		water_damage: the damage per second if the mob is in water

api.lua

@@ -15,8 +15,7 @@ function mobs:register_mob(name, def)
 		light_damage = def.light_damage,
 		water_damage = def.water_damage,
 		lava_damage = def.lava_damage,
-		drop = def.drop,
+		drops = def.drops,
-		drop_count = def.drop_count,
 		armor = def.armor,
 		drawtype = def.drawtype,
 		on_rightclick = def.on_rightclick,
@@ -235,12 +234,16 @@ function mobs:register_mob(name, def)
 		on_punch = function(self, hitter)
 			if self.object:get_hp() <= 0 then
 				if hitter and hitter:is_player() and hitter:get_inventory() then
-					for i=1,math.random(0,2)-1+self.drop_count do
+					for _,drop in ipairs(self.drops) do
-						hitter:get_inventory():add_item("main", ItemStack(self.drop))
+						if math.random(1, drop.chance) == 1 then
+							hitter:get_inventory():add_item("main", ItemStack(drop.name.." "..math.random(drop.min, drop.max)))
+						end
 					end
 				else
-					for i=1,math.random(0,2)-1+self.drop_count do
+					for _,drop in ipairs(self.drops) do
-						local obj = minetest.env:add_item(self.object:getpos(), self.drop)
+						if math.random(1, drop.chance) == 1 then
+							for i=1,math.random(drop.min, drop.max) do
+								local obj = minetest.env:add_item(self.object:getpos(), drop.name)
 								if obj then
 									obj:get_luaentity().collect = true
 									local x = math.random(1, 5)
@@ -256,6 +259,8 @@ function mobs:register_mob(name, def)
 							end
 						end
 					end
+				end
+			end
 		end,
 		
 	})

init.lua

@@ -12,8 +12,12 @@ mobs:register_mob("mobs:dirt_monster", {
 	walk_velocity = 1,
 	run_velocity = 3,
 	damage = 2,
-	drop = "default:dirt",
+	drops = {
-	drop_count = 3,
+		{name = "default:dirt",
+		chance = 1,
+		min = 3,
+		max = 5,},
+	},
 	armor = 3,
 	drawtype = "front",
 	water_damage = 1,
@@ -35,8 +39,12 @@ mobs:register_mob("mobs:stone_monster", {
 	walk_velocity = 0.5,
 	run_velocity = 2,
 	damage = 3,
-	drop = "default:mossycobble",
+	drops = {
-	drop_count = 3,
+		{name = "default:mossycobble",
+		chance = 1,
+		min = 3,
+		max = 5,},
+	},
 	light_resistant = true,
 	armor = 2,
 	drawtype = "front",
@@ -59,8 +67,12 @@ mobs:register_mob("mobs:sand_monster", {
 	walk_velocity = 1.5,
 	run_velocity = 4,
 	damage = 1,
-	drop = "default:sand",
+	drops = {
-	drop_count = 3,
+		{name = "default:sand",
+		chance = 1,
+		min = 3,
+		max = 5,},
+	},
 	light_resistant = true,
 	armor = 3,
 	drawtype = "front",
@@ -80,8 +92,12 @@ mobs:register_mob("mobs:sheep", {
 	makes_footstep_sound = true,
 	walk_velocity = 1,
 	armor = 3,
-	drop = "mobs:meat_raw",
+	drops = {
-	drop_count = 2,
+		{name = "mobs:meat_raw",
+		chance = 1,
+		min = 2,
+		max = 3,},
+	},
 	drawtype = "side",
 	water_damage = 1,
 	lava_damage = 5,
@@ -130,8 +146,7 @@ mobs:register_mob("mobs:rat", {
 	makes_footstep_sound = false,
 	walk_velocity = 1,
 	armor = 3,
-	drop = "",
+	drops = {},
-	drop_count = 0,
 	drawtype = "side",
 	water_damage = 0,
 	lava_damage = 1,
@@ -185,8 +200,7 @@ mobs:register_mob("mobs:oerkki", {
 	walk_velocity = 1,
 	run_velocity = 3,
 	damage = 4,
-	drop = "",
+	drops = {},
-	drop_count = 0,
 	armor = 3,
 	drawtype = "front",
 	light_resistant = true,