Add in a visual for horse taming (hearts)

mods/ENTITIES/mcl_mobs/api/mob_functions/mob_effects.lua

@@ -58,4 +58,65 @@ mobs.critical_effect = function(self)
         vertical = false,
         texture = "heart.png^[colorize:black:255",
     })
+end
+
+--when feeding a mob
+mobs.feed_effect = function(self)
+
+    local pos = self.object:get_pos()
+    local yaw = self.object:get_yaw()
+    local collisionbox = self.object:get_properties().collisionbox
+
+    local min, max
+
+    if collisionbox then
+        min = {x=collisionbox[1], y=collisionbox[2], z=collisionbox[3]}
+        max = {x=collisionbox[4], y=collisionbox[5], z=collisionbox[6]}
+    end
+
+    minetest_add_particlespawner({
+        amount = 10,
+        time = 0.0001,
+        minpos = vector.add(pos, min),
+        maxpos = vector.add(pos, max),
+        minvel = vector.new(-1,1,-1),
+        maxvel = vector.new(1,3,1),
+        minexptime = 0.7,
+        maxexptime = 1,
+        minsize = 1,
+        maxsize = 2,
+        collisiondetection = false,
+        vertical = false,
+        texture = "heart.png^[colorize:gray:255",
+    })
+end
+
+--hearts when tamed
+mobs.tamed_effect = function(self)
+    local pos = self.object:get_pos()
+    local yaw = self.object:get_yaw()
+    local collisionbox = self.object:get_properties().collisionbox
+
+    local min, max
+
+    if collisionbox then
+        min = {x=collisionbox[1], y=collisionbox[2], z=collisionbox[3]}
+        max = {x=collisionbox[4], y=collisionbox[5], z=collisionbox[6]}
+    end
+
+    minetest_add_particlespawner({
+        amount = 30,
+        time = 0.0001,
+        minpos = vector.add(pos, min),
+        maxpos = vector.add(pos, max),
+        minvel = vector.new(-1,1,-1),
+        maxvel = vector.new(1,3,1),
+        minexptime = 0.7,
+        maxexptime = 1,
+        minsize = 1,
+        maxsize = 2,
+        collisiondetection = false,
+        vertical = false,
+        texture = "heart.png",
+    })
 end

mods/ENTITIES/mobs_mc/horse.lua

@@ -241,6 +241,7 @@ local horse = {
 				self.buck_off_time = 40 -- TODO how long does it take in minecraft?
 				if self.temper > 100 then
 					self.tamed = true -- NOTE taming can only be finished by riding the horse
+					mobs.tamed_effect(self)
 					if not self.owner or self.owner == "" then
 						self.owner = clicker:get_player_name()
 					end
@@ -255,6 +256,14 @@ local horse = {
 			-- If nothing happened temper_increase = 0 and addition does nothing
 			self.temper = self.temper + temper_increase
 
+			--give the player some kind of idea
+			--of what's happening with the horse's temper
+			if self.temper <= 100 then
+				mobs.feed_effect(self)
+			else
+				mobs.tamed_effect(self)
+			end
+
 			return
 		end