Rebalance bronze and steel tools, swap ore depths

Reduce bronze tool capabilities to be between stone and steel.
Swap depths of iron ore and tin / copper ores for corresponding
progression.

mods/default/mapgen.lua

@@ -556,41 +556,6 @@ function default.register_ores()
 		y_min          = -31000,
 	})
 
-	-- Iron
-
-	minetest.register_ore({
-		ore_type       = "scatter",
-		ore            = "default:stone_with_iron",
-		wherein        = "default:stone",
-		clust_scarcity = 9 * 9 * 9,
-		clust_num_ores = 12,
-		clust_size     = 3,
-		y_max          = 31000,
-		y_min          = 1025,
-	})
-
-	minetest.register_ore({
-		ore_type       = "scatter",
-		ore            = "default:stone_with_iron",
-		wherein        = "default:stone",
-		clust_scarcity = 7 * 7 * 7,
-		clust_num_ores = 5,
-		clust_size     = 3,
-		y_max          = -64,
-		y_min          = -127,
-	})
-
-	minetest.register_ore({
-		ore_type       = "scatter",
-		ore            = "default:stone_with_iron",
-		wherein        = "default:stone",
-		clust_scarcity = 12 * 12 * 12,
-		clust_num_ores = 29,
-		clust_size     = 5,
-		y_max          = -128,
-		y_min          = -31000,
-	})
-
 	-- Tin
 
 	minetest.register_ore({
@@ -611,8 +576,8 @@ function default.register_ores()
 		clust_scarcity = 13 * 13 * 13,
 		clust_num_ores = 4,
 		clust_size     = 3,
-		y_max          = -128,
+		y_max          = -64,
-		y_min          = -255,
+		y_min          = -127,
 	})
 
 	minetest.register_ore({
@@ -622,7 +587,7 @@ function default.register_ores()
 		clust_scarcity = 10 * 10 * 10,
 		clust_num_ores = 5,
 		clust_size     = 3,
-		y_max          = -256,
+		y_max          = -128,
 		y_min          = -31000,
 	})
 
@@ -646,8 +611,8 @@ function default.register_ores()
 		clust_scarcity = 12 * 12 * 12,
 		clust_num_ores = 4,
 		clust_size     = 3,
-		y_max          = -128,
+		y_max          = -64,
-		y_min          = -255,
+		y_min          = -127,
 	})
 
 	minetest.register_ore({
@@ -657,6 +622,41 @@ function default.register_ores()
 		clust_scarcity = 9 * 9 * 9,
 		clust_num_ores = 5,
 		clust_size     = 3,
+		y_max          = -128,
+		y_min          = -31000,
+	})
+
+	-- Iron
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_iron",
+		wherein        = "default:stone",
+		clust_scarcity = 9 * 9 * 9,
+		clust_num_ores = 12,
+		clust_size     = 3,
+		y_max          = 31000,
+		y_min          = 1025,
+	})
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_iron",
+		wherein        = "default:stone",
+		clust_scarcity = 7 * 7 * 7,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_max          = -128,
+		y_min          = -255,
+	})
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_iron",
+		wherein        = "default:stone",
+		clust_scarcity = 12 * 12 * 12,
+		clust_num_ores = 29,
+		clust_size     = 5,
 		y_max          = -256,
 		y_min          = -31000,
 	})

mods/default/tools.lua

@@ -50,6 +50,20 @@ minetest.register_tool("default:pick_stone", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
+minetest.register_tool("default:pick_bronze", {
+	description = "Bronze Pickaxe",
+	inventory_image = "default_tool_bronzepick.png",
+	tool_capabilities = {
+		full_punch_interval = 1.0,
+		max_drop_level=1,
+		groupcaps={
+			cracky = {times={[1]=4.50, [2]=1.80, [3]=0.90}, uses=20, maxlevel=2},
+		},
+		damage_groups = {fleshy=4},
+	},
+	sound = {breaks = "default_tool_breaks"},
+})
+
 minetest.register_tool("default:pick_steel", {
 	description = "Steel Pickaxe",
 	inventory_image = "default_tool_steelpick.png",
@@ -64,20 +78,6 @@ minetest.register_tool("default:pick_steel", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
-minetest.register_tool("default:pick_bronze", {
-	description = "Bronze Pickaxe",
-	inventory_image = "default_tool_bronzepick.png",
-	tool_capabilities = {
-		full_punch_interval = 1.0,
-		max_drop_level=1,
-		groupcaps={
-			cracky = {times={[1]=4.00, [2]=1.60, [3]=0.80}, uses=30, maxlevel=2},
-		},
-		damage_groups = {fleshy=4},
-	},
-	sound = {breaks = "default_tool_breaks"},
-})
-
 minetest.register_tool("default:pick_mese", {
 	description = "Mese Pickaxe",
 	inventory_image = "default_tool_mesepick.png",
@@ -141,6 +141,21 @@ minetest.register_tool("default:shovel_stone", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
+minetest.register_tool("default:shovel_bronze", {
+	description = "Bronze Shovel",
+	inventory_image = "default_tool_bronzeshovel.png",
+	wield_image = "default_tool_bronzeshovel.png^[transformR90",
+	tool_capabilities = {
+		full_punch_interval = 1.1,
+		max_drop_level=1,
+		groupcaps={
+			crumbly = {times={[1]=1.65, [2]=1.05, [3]=0.45}, uses=25, maxlevel=2},
+		},
+		damage_groups = {fleshy=3},
+	},
+	sound = {breaks = "default_tool_breaks"},
+})
+
 minetest.register_tool("default:shovel_steel", {
 	description = "Steel Shovel",
 	inventory_image = "default_tool_steelshovel.png",
@@ -156,21 +171,6 @@ minetest.register_tool("default:shovel_steel", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
-minetest.register_tool("default:shovel_bronze", {
-	description = "Bronze Shovel",
-	inventory_image = "default_tool_bronzeshovel.png",
-	wield_image = "default_tool_bronzeshovel.png^[transformR90",
-	tool_capabilities = {
-		full_punch_interval = 1.1,
-		max_drop_level=1,
-		groupcaps={
-			crumbly = {times={[1]=1.50, [2]=0.90, [3]=0.40}, uses=40, maxlevel=2},
-		},
-		damage_groups = {fleshy=3},
-	},
-	sound = {breaks = "default_tool_breaks"},
-})
-
 minetest.register_tool("default:shovel_mese", {
 	description = "Mese Shovel",
 	inventory_image = "default_tool_meseshovel.png",
@@ -234,6 +234,20 @@ minetest.register_tool("default:axe_stone", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
+minetest.register_tool("default:axe_bronze", {
+	description = "Bronze Axe",
+	inventory_image = "default_tool_bronzeaxe.png",
+	tool_capabilities = {
+		full_punch_interval = 1.0,
+		max_drop_level=1,
+		groupcaps={
+			choppy={times={[1]=2.75, [2]=1.70, [3]=1.15}, uses=20, maxlevel=2},
+		},
+		damage_groups = {fleshy=4},
+	},
+	sound = {breaks = "default_tool_breaks"},
+})
+
 minetest.register_tool("default:axe_steel", {
 	description = "Steel Axe",
 	inventory_image = "default_tool_steelaxe.png",
@@ -248,20 +262,6 @@ minetest.register_tool("default:axe_steel", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
-minetest.register_tool("default:axe_bronze", {
-	description = "Bronze Axe",
-	inventory_image = "default_tool_bronzeaxe.png",
-	tool_capabilities = {
-		full_punch_interval = 1.0,
-		max_drop_level=1,
-		groupcaps={
-			choppy={times={[1]=2.50, [2]=1.40, [3]=1.00}, uses=30, maxlevel=2},
-		},
-		damage_groups = {fleshy=4},
-	},
-	sound = {breaks = "default_tool_breaks"},
-})
-
 minetest.register_tool("default:axe_mese", {
 	description = "Mese Axe",
 	inventory_image = "default_tool_meseaxe.png",
@@ -323,6 +323,20 @@ minetest.register_tool("default:sword_stone", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
+minetest.register_tool("default:sword_bronze", {
+	description = "Bronze Sword",
+	inventory_image = "default_tool_bronzesword.png",
+	tool_capabilities = {
+		full_punch_interval = 0.8,
+		max_drop_level=1,
+		groupcaps={
+			snappy={times={[1]=2.75, [2]=1.30, [3]=0.375}, uses=25, maxlevel=2},
+		},
+		damage_groups = {fleshy=6},
+	},
+	sound = {breaks = "default_tool_breaks"},
+})
+
 minetest.register_tool("default:sword_steel", {
 	description = "Steel Sword",
 	inventory_image = "default_tool_steelsword.png",
@@ -337,20 +351,6 @@ minetest.register_tool("default:sword_steel", {
 	sound = {breaks = "default_tool_breaks"},
 })
 
-minetest.register_tool("default:sword_bronze", {
-	description = "Bronze Sword",
-	inventory_image = "default_tool_bronzesword.png",
-	tool_capabilities = {
-		full_punch_interval = 0.8,
-		max_drop_level=1,
-		groupcaps={
-			snappy={times={[1]=2.5, [2]=1.20, [3]=0.35}, uses=40, maxlevel=2},
-		},
-		damage_groups = {fleshy=6},
-	},
-	sound = {breaks = "default_tool_breaks"},
-})
-
 minetest.register_tool("default:sword_mese", {
 	description = "Mese Sword",
 	inventory_image = "default_tool_mesesword.png",