Added initial logic for damaging mob when it's on a magma block

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

@@ -794,7 +794,27 @@ ___  ___      _         _                 _
 ]]--
 
 --the main loop
-function mobs.mob_step(self, dtime)
+--this function will be called on every single globalstep, for each invidivual
+--instance of a mob object
+local timer = 0
+function mobs.mob_step(self, dtime) timer = timer + dtime;
+	--gets the current position of the mob
+	local cur_pos = self.object:get_pos()
+	cur_pos['y'] = cur_pos['y'] - 1
+	print(timer)
+
+	-- If the block below the mob is a magma block it gets hurt every half a second
+	if minetest.get_node(cur_pos).name == 'mcl_nether:magma' and timer >= 0.5 then
+		print(minetest.get_node(cur_pos).name)
+
+		-- If the mobs hp is greater than zero, it gets hurt.
+		if self.health > 0 then
+			mcl_util.deal_damage(self.object, 1, {type = "hot_floor"})
+			timer = 0 
+		end
+
+
+	end
 
 	--do not continue if non-existent
 	if not self or not self.object or not self.object:get_luaentity() then
@@ -831,17 +851,28 @@ function mobs.mob_step(self, dtime)
 	end
 
 	--color modifier which coincides with the pause_timer
+
+	--If self.old_health exists and self.health is less than self.old_health this will run
 	if self.old_health and self.health < self.old_health then
 		self.object:set_texture_mod("^[colorize:red:120")
 		--fix double death sound
 		if self.health > 0 then
 			mobs.play_sound(self,"damage")
 		end
+	
+	--Basically here to make sure there is no way that the mob will get stuck
+	--on the colorized red texture
+	elseif self.health >= 0 then
+		self.object:set_texture_mod("^[colorize:red:0")
 	end
+
+	--Set the old_heath to the new health to make sure on the next loop
+	--iteration things are evaluated correctly
 	self.old_health = self.health
 
 	--do death logic (animation, poof, explosion, etc)
 	if self.health <= 0 or self.dead then
+		self.object:set_texture_mod("^[colorize:red:120")
 		--play death sound once
 		if not self.played_death_sound then
 			self.dead = true