mobs_jam - optimize textures for mobiles

* spawn tune up, more animals in the world and more monters in undergrounds
* penguin spawns more (was pretty rare found one) also permit to spawn in higer grounds
* rats spawns more but pretty more down, basically only in dungeons
* sheep spawns more due we need more lana, autodetect ethereal and put nodes to spawn
* tortoise spawns more
* wardog spawns more
* panda spawn not only in ethereal, also spawn in normal mods
* kitty spawn more frecuently, less rare
* mese monster and lava flan spwans more
* owl spawn more
* fire spirit can spawn now in lava also, and cave realms if detected
* cow spawns more
* more chicken and als permit to spawn ar the sea level too
* bee spawn little more but in more high levels
* bunny spawns more

mods/default/functions.lua

@@ -485,28 +485,32 @@ minetest.register_abm({
 
 
 --
--- Checks if specified volume intersects a protected volume
+-- Checks if specified volume intersects a protected volume, return first node intersected in protected area by player
 --
 
 function default.intersects_protection(minp, maxp, player_name, interval)
 	-- 'interval' is the largest allowed interval for the 3D lattice of checks
-
-if is_50 then
+	-- but newer engines returned first node that intersect area protected or false
+    if is_50 then
 	return minetest.is_area_protected(minp, maxp, player_name, interval)
-else
+    else
 	-- Compute the optimal float step 'd' for each axis so that all corners and
 	-- borders are checked. 'd' will be smaller or equal to 'interval'.
 	-- Subtracting 1e-4 ensures that the max co-ordinate will be reached by the
 	-- for loop (which might otherwise not be the case due to rounding errors).
 	local d = {}
 	for _, c in pairs({"x", "y", "z"}) do
+
+		if minp[c] > maxp[c] then
+			local tmp = maxp[c]
+			maxp[c] = minp[c]
+			minp[c] = tmp -- Repair positions: 'minp' > 'maxp'
+		end
+
 		if maxp[c] > minp[c] then
 			d[c] = (maxp[c] - minp[c]) / math.ceil((maxp[c] - minp[c]) / interval) - 1e-4
-		elseif maxp[c] == minp[c] then
+		else
 			d[c] = 1 -- Any value larger than 0 to avoid division by zero
-		else -- maxp[c] < minp[c], print error and treat as protection intersected
-			minetest.log("error", "maxp < minp in 'default.intersects_protection()'")
-			return true
 		end
 	end
 
@@ -516,8 +520,9 @@ else
 			local y = math.floor(yf + 0.5)
 			for xf = minp.x, maxp.x, d.x do
 				local x = math.floor(xf + 0.5)
-				if minetest.is_protected({x = x, y = y, z = z}, player_name) then
-					return true
+				local pos = {x = x, y = y, z = z}
+				if core.is_protected(pos, player_name) then
+					return pos
 				end
 			end
 		end
@@ -525,8 +530,13 @@ else
 
 	return false
 
+    end
+
 end
 
+if not is_50 then
+	-- older engines backguar compatibility
+	minetest.is_area_protected = default.intersects_protection
 end
 
 

mods/default/init.lua

@@ -10,7 +10,7 @@ default.LIGHT_MAX = 14
 
 -- GUI related stuff
 default.gui_bg = "bgcolor[#080808BB;true]"
-default.gui_bg_img = "background[5,5;1,1;gui_formbg.png;true]"
+default.gui_bg_img = ""
 default.gui_slots = "listcolors[#00000069;#5A5A5A;#141318;#30434C;#FFF]"
 
 function default.get_hotbar_bg(x,y)

mods/default/legacy.lua

@@ -25,6 +25,7 @@ LIGHT_MAX = default.LIGHT_MAX
 default.gui_suvival_form = default.gui_survival_form
 default.gui_bg     = ""
 default.gui_bg_img = ""
+default.gui_slots  = ""
 
 -- Players
 if minetest.get_modpath("player_api") then

mods/default/player.lua

@@ -5,16 +5,22 @@
 -- Note: This is currently broken due to a bug in Irrlicht, leave at 0
 local animation_blend = 0
 local hp_player_maximun = tonumber(minetest.settings:get('default_hp_player_maximun')) or 40
+local modelchar
+local eyeheithg
 
-if minetest.has_feature("object_use_texture_alpha") then
-core.PLAYER_MAX_HP_DEFAULT = hp_player_maximun
+local is_50 = minetest.has_feature("object_use_texture_alpha") or nil
+
+if is_50 then
+	core.PLAYER_MAX_HP_DEFAULT = hp_player_maximun
+	modelchar = "character50.b3d"
+	eyeheithg = 1.47
 else
-core.PLAYER_MAX_HP = hp_player_maximun
+	core.PLAYER_MAX_HP = hp_player_maximun
+	modelchar = "character40.b3d"
+	eyeheithg = 1.625
 end
+
 default.registered_player_models = { }
-if minetest.get_modpath("hudbars") then
-hb.settings.hp_player_maximun = hp_player_maximun
-end
 
 -- Local for speed.
 local models = default.registered_player_models
@@ -24,7 +30,7 @@ function default.player_register_model(name, def)
 end
 
 -- Default player appearance
-default.player_register_model("character.b3d", {
+default.player_register_model( modelchar, {
 	animation_speed = 30,
 	textures = {"character.png", },
 	animations = {
@@ -36,7 +42,9 @@ default.player_register_model("character.b3d", {
 		walk_mine = { x=200, y=219, },
 		sit       = { x= 81, y=160, },
 	},
-	eye_height = 1.625,
+	collisionbox = {-0.3, 0.0, -0.3, 0.3, 1.7, 0.3},
+	stepheight = 0.6,
+	eye_height = eyeheithg,
 })
 
 -- Player stats and animations
@@ -68,14 +76,19 @@ function default.player_set_model(player, model_name)
 			textures = player_textures[name] or model.textures,
 			visual = "mesh",
 			visual_size = model.visual_size or {x=1, y=1},
-			eye_height = model.eye_height or 1.47,
+			collisionbox = model.collisionbox or {-0.3, 0.0, -0.3, 0.3, 1.7, 0.3},
+			stepheight = model.stepheight or 0.6,
+			eye_height = model.eye_height or eyeheithg,
 		})
 		default.player_set_animation(player, "stand")
 	else
 		player:set_properties({
 			textures = { "player.png", "player_back.png", },
 			visual = "upright_sprite",
-			eye_height = 1.625,
+			visual_size = {x=1, y=2},
+			collisionbox = {-0.3, 0.0, -0.3, 0.3, 1.75, 0.3},
+			stepheight = 0.6,
+			eye_height = eyeheithg,
 		})
 	end
 	player_model[name] = model_name
@@ -83,8 +96,10 @@ end
 
 function default.player_set_textures(player, textures)
 	local name = player:get_player_name()
-	player_textures[name] = textures
-	player:set_properties({textures = textures,})
+	local model = models[player_model[name]]
+	local model_textures = model and model.textures or nil
+	player_textures[name] = textures or model_textures
+	player:set_properties({textures = textures or model_textures,})
 	player:set_properties({hp_max = hp_player_maximun})
 end
 
@@ -105,12 +120,9 @@ end
 -- Update appearance when the player joins
 minetest.register_on_joinplayer(function(player)
 	default.player_attached[player:get_player_name()] = false
-	default.player_set_model(player, "character.b3d")
+	default.player_set_model(player, modelchar)
 	player:set_local_animation({x=0, y=79}, {x=168, y=187}, {x=189, y=198}, {x=200, y=219}, 30)
 	player:set_properties({hp_max = hp_player_maximun})
-
-	player:hud_set_hotbar_image("gui_hotbar.png")
-	player:hud_set_hotbar_selected_image("gui_hotbar_selected.png")
 end)
 
 minetest.register_on_leaveplayer(function(player)
@@ -124,6 +136,15 @@ end)
 local player_set_animation = default.player_set_animation
 local player_attached = default.player_attached
 
+-- Prevent knockback for attached players
+local old_calculate_knockback = minetest.calculate_knockback
+function minetest.calculate_knockback(player, ...)
+	if player_attached[player:get_player_name()] then
+		return 0
+	end
+	return old_calculate_knockback(player, ...)
+end
+
 -- Check each player and apply animations
 minetest.register_globalstep(function(dtime)
 	for _, player in pairs(minetest.get_connected_players()) do