Protect nodes from being overwritten by mapgen (#12)

* more detailed dep checks for recipes

* remove (opt-) depends on default

Co-authored-by: BuckarooBanzay <BuckarooBanzay@users.noreply.github.com>

depends.txt

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

description.txt

@@ -1 +0,0 @@
-adds trampolines, cushions, ...

init.lua

@@ -7,14 +7,14 @@ local trampolinebox = {
 		{ 0.4, -0.5, -0.5,  0.5, -0.2, -0.4},
 		{ 0.4, -0.5,  0.4,  0.5, -0.2,  0.5},
 		{-0.5, -0.5,  0.4, -0.4, -0.2,  0.5},
-		}
+	}
 }
 
 local cushionbox = {
 	type = "fixed",
 	fixed = {
 		{-0.5, -0.5, -0.5,  0.5, -0.3,  0.5},
-		}
+	}
 }
 
 local trampoline_punch = function(pos, node)
@@ -35,6 +35,7 @@ local power_decrease = function(pos, node)
 	end
 end
 
+local use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "clip" or nil
 for i = 1, 6 do
 	minetest.register_node("jumping:trampoline"..i, {
 		description = "Trampoline",
@@ -48,17 +49,19 @@ for i = 1, 6 do
 		on_punch = trampoline_punch,
 		on_rightclick = power_decrease,
 		drop = "jumping:trampoline1",
+		use_texture_alpha = use_texture_alpha,
 		tiles = {
 			"jumping_trampoline_top.png",
 			"jumping_trampoline_bottom.png",
 			"jumping_trampoline_sides.png^jumping_trampoline_sides_overlay"..i..".png"
 		},
+		is_ground_content = false,
 		groups = {
-				dig_immediate = 2,
+			dig_immediate = 2,
-				bouncy = 20 + i * 20,
+			bouncy = 20 + i * 20,
-				fall_damage_add_percent = -70,
+			fall_damage_add_percent = -70,
-				not_in_creative_inventory = ( i > 1 and 1 or nil),
+			not_in_creative_inventory = ( i > 1 and 1 or nil),
-			},
+		},
 	})
 end
 
@@ -68,27 +71,34 @@ minetest.register_node("jumping:cushion", {
 	node_box = cushionbox,
 	selection_box = cushionbox,
 	paramtype = "light",
+	use_texture_alpha = use_texture_alpha,
 	tiles = {
 		"jumping_cushion_tb.png",
 		"jumping_cushion_tb.png",
 		"jumping_cushion_sides.png"
 	},
+	is_ground_content = false,
 	groups = {dig_immediate=2, disable_jump=1, fall_damage_add_percent=-100},
 })
 
-minetest.register_craft({
+-- register recipes if the corresponding mods are present
-	output = "jumping:trampoline1",
+if minetest.get_modpath("default") then
-	recipe = {
+	minetest.register_craft({
-		{"jumping:cushion", "jumping:cushion", "jumping:cushion"},
+		output = "jumping:trampoline1",
-		{"default:steel_ingot", "", "default:steel_ingot"}
+		recipe = {
-	}
+			{"jumping:cushion", "jumping:cushion", "jumping:cushion"},
-})
+			{"default:steel_ingot", "", "default:steel_ingot"}
+		}
+	})
+end
 
-minetest.register_craft({
+if minetest.get_modpath("farming") and minetest.get_modpath("wool") then
-	output = "jumping:cushion",
+	minetest.register_craft({
-	recipe = {
+		output = "jumping:cushion",
-		{"farming:cotton", "group:wool", "farming:cotton"},
+		recipe = {
-		{"farming:cotton", "group:wool", "farming:cotton"},
+			{"farming:cotton", "group:wool", "farming:cotton"},
-		{"farming:cotton", "farming:cotton", "farming:cotton"}
+			{"farming:cotton", "group:wool", "farming:cotton"},
-	}
+			{"farming:cotton", "farming:cotton", "farming:cotton"}
-})
+		}
+	})
+end

mod.conf

@@ -1 +1,2 @@
-jumping
+name = jumping
+description = adds trampolines, cushions, ...