added extra compatibility for crops spawning on older v6 maps

mapgen.lua

@@ -1,3 +1,8 @@
+-- what mapgen are we using
+local mg_name = minetest.get_mapgen_setting("mg_name")
+
+-- temp vars
+local tmp1, tmp2, tmp3
 
 -- decoration function
 local function register_plant(name, min, max, spawnon, spawnby, num, rarety)
@@ -35,9 +40,6 @@ end
 register_plant("potato_3", 15, 40, nil, "", -1, farming.potato)
 register_plant("tomato_7", 5, 20, nil, "", -1, farming.tomato)
 register_plant("corn_7", 12, 22, nil, "", -1, farming.corn)
-register_plant("coffee_5", 20, 45, {"default:dirt_with_dry_grass",
-	"default:dirt_with_rainforest_litter",
-	"default:dry_dirt_with_dry_grass"}, "", -1, farming.coffee)
 register_plant("raspberry_4", 3, 10, nil, "", -1, farming.raspberry)
 register_plant("rhubarb_3", 3, 15, nil, "", -1, farming.rhubarb)
 register_plant("blueberry_4", 3, 10, nil, "", -1, farming.blueberry)
@@ -47,23 +49,24 @@ register_plant("onion_5", 5, 22, nil, "", -1, farming.onion)
 register_plant("garlic_5", 3, 30, nil, "group:tree", 1, farming.garlic)
 register_plant("pea_5", 25, 50, nil, "", -1, farming.peas)
 register_plant("beetroot_5", 1, 15, nil, "", -1, farming.beetroot)
-register_plant("mint_4", 1, 75, {"default:dirt_with_grass",
-"default:dirt_with_coniferous_litter"}, "group:water", 1, farming.mint)
 register_plant("cabbage_6", 2, 10, nil, "", -1, farming.cabbage)
 register_plant("lettuce_5", 5, 30, nil, "", -1, farming.lettuce)
 register_plant("blackberry_4", 3, 10, nil, "", -1, farming.blackberry)
-register_plant("soy_6", 20, 50, {"default:dirt_with_dry_grass",
-		"default:dirt_with_rainforest_litter",
-		"default:dry_dirt_with_dry_grass"}, "", -1, farming.soy)
 register_plant("vanilla_7", 5, 35, nil, "", -1, farming.vanilla)
+register_plant("mint_4", 1, 75, {
+	"default:dirt_with_grass", "default:dirt_with_coniferous_litter"},
+	"group:water", 1, farming.mint)
 
 
-if minetest.get_mapgen_setting("mg_name") == "v6" then
+-- v6 mapgen compatibility for specific crops
+if mg_name == "v6" then
 
 	register_plant("carrot_8", 1, 30, nil, "group:water", 1, farming.carrot)
 	register_plant("cucumber_4", 1, 20, nil, "group:water", 1, farming.cucumber)
 	register_plant("melon_8", 1, 20, nil, "group:water", 1, farming.melon)
 	register_plant("pumpkin_8", 1, 20, nil, "group:water", 1, farming.pumpkin)
+	register_plant("coffee_5", 20, 45, nil, "", -1, farming.coffee)
+	register_plant("soy_6", 20, 50, nil, "", -1, farming.soy)
 else
 	-- v7 maps have a beach so plants growing near water is limited to 6 high
 	register_plant("carrot_8", 1, 15, nil, "", -1, farming.carrot)
@@ -71,8 +74,15 @@ else
 	register_plant("melon_8", 1, 6, {"default:dirt_with_dry_grass",
 		"default:dirt_with_rainforest_litter"}, "", -1, farming.melon)
 	register_plant("pumpkin_8", 1, 6, nil, "", -1, farming.pumpkin)
+	register_plant("coffee_5", 20, 45, {"default:dirt_with_dry_grass",
+		"default:dirt_with_rainforest_litter",
+		"default:dry_dirt_with_dry_grass"}, "", -1, farming.coffee)
+	register_plant("soy_6", 20, 50, {"default:dirt_with_dry_grass",
+		"default:dirt_with_rainforest_litter",
+		"default:dry_dirt_with_dry_grass"}, "", -1, farming.soy)
 end
 
+
 if farming.hemp then
 minetest.register_decoration({
 	deco_type = "simple",
@@ -94,6 +104,7 @@ minetest.register_decoration({
 })
 end
 
+
 if farming.chili then
 minetest.register_decoration({
 	deco_type = "simple",
@@ -115,10 +126,18 @@ minetest.register_decoration({
 })
 end
 
+
 if farming.pepper then
+
+local tmp1 = {"default:dirt_with_rainforest_litter"} -- v7
+
+if mg_name == "v6" then
+	tmp1 = {"default:dirt_with_grass"} -- v6
+end
+
 minetest.register_decoration({
 	deco_type = "simple",
-	place_on = {"default:dirt_with_rainforest_litter"},
+	place_on = tmp1,
 	sidelen = 16,
 	noise_params = {
 		offset = 0,
@@ -136,10 +155,22 @@ minetest.register_decoration({
 })
 end
 
+
 if farming.pineapple then
+
+tmp1 = {"default:dirt_with_dry_grass", "default:dry_dirt_with_dry_grass"}
+tmp2 = nil
+tmp3 = -1
+
+if mg_name == "v6" then
+	tmp1 = {"default:dirt_with_grass"}
+	tmp2 = "default:desert_sand"
+	tmp3 = 1
+end
+
 minetest.register_decoration({
 	deco_type = "simple",
-	place_on = {"default:dirt_with_dry_grass", "default:dry_dirt_with_dry_grass"},
+	place_on = tmp1,
 	sidelen = 16,
 	noise_params = {
 		offset = 0,
@@ -151,14 +182,24 @@ minetest.register_decoration({
 	},
 	y_min = 18,
 	y_max = 30,
-	decoration = {"farming:pineapple_8"}
+	decoration = {"farming:pineapple_8"},
+	spawn_by = tmp2,
+	num_spawn_by = tmp3
 })
 end
 
+tmp1 = {"default:dry_dirt_with_dry_grass"}
+tmp2 = {"savanna"}
+
+if mg_name == "v6" then
+	tmp1 = {"default:dirt_with_grass"}
+	tmp2 = {"jungle"}
+end
+
 minetest.register_decoration({
 	name = "farming:cotton_wild",
 	deco_type = "simple",
-	place_on = {"default:dry_dirt_with_dry_grass"},
+	place_on = tmp1,
 	sidelen = 16,
 	noise_params = {
 		offset = -0.1,
@@ -168,7 +209,7 @@ minetest.register_decoration({
 		octaves = 3,
 		persist = 0.7
 	},
-	biomes = {"savanna"},
+	biomes = tmp2,
 	y_max = 31000,
 	y_min = 1,
 	decoration = "farming:cotton_wild"