add deeper = darker

mods/ITEMS/mcl_core/nodes_liquid.lua

@@ -50,7 +50,7 @@ minetest.register_node("mcl_core:water_flowing", {
 	liquid_viscosity = WATER_VISC,
 	liquid_range = 7,
 	waving = 3,
-	post_effect_color = {a=209, r=0x03, g=0x3C, b=0x5C},
+	post_effect_color = {a=20, r=0x03, g=0x3C, b=0x5C},
 	groups = { water=3, liquid=3, puts_out_fire=1, not_in_creative_inventory=1, freezes=1, melt_around=1, dig_by_piston=1},
 	_mcl_blast_resistance = 100,
 	-- Hardness intentionally set to infinite instead of 100 (Minecraft value) to avoid problems in creative mode
@@ -95,7 +95,7 @@ S("• When water is directly below lava, the water turns into stone."),
 	liquid_alternative_source = "mcl_core:water_source",
 	liquid_viscosity = WATER_VISC,
 	liquid_range = 7,
-	post_effect_color = {a=209, r=0x03, g=0x3C, b=0x5C},
+	post_effect_color = {a=60, r=0x03, g=0x3C, b=0x5C},
 	stack_max = 64,
 	groups = { water=3, liquid=3, puts_out_fire=1, freezes=1, not_in_creative_inventory=1, dig_by_piston=1},
 	_mcl_blast_resistance = 100,

mods/PLAYER/mcl_playerplus/init.lua

@@ -3,6 +3,8 @@ mcl_playerplus = {
 	is_pressing_jump = {},
 }
 
+local hud_water = {}
+
 local get_connected_players = minetest.get_connected_players
 local dir_to_yaw = minetest.dir_to_yaw
 local get_item_group = minetest.get_item_group
@@ -25,6 +27,26 @@ local mcl_playerplus_internal = {}
 local time = 0
 local look_pitch = 0
 
+
+local function calculate_water_depth(pos)
+	for i=1, 50 do
+		if get_item_group(minetest.get_node(vector.new(pos.x,pos.y+i,pos.z)).name, "water") == 0 then
+			return i
+		end
+	end
+	return 50
+end
+
+local function remove_water_hud(player)
+	if hud_water[player] then
+		mcl_weather.skycolor.update_sky_color()
+		for i=1, #hud_water[player] do
+			player:hud_remove(hud_water[player][i])
+		end
+		hud_water[player] = nil
+	end
+end
+
 local function player_collision(player)
 
 	local pos = player:get_pos()
@@ -395,6 +417,25 @@ minetest.register_globalstep(function(dtime)
 			set_bone_pos(player,"Body_Control", nil, vector.new(0, -player_vel_yaw + yaw, 0))
 		end
 
+		if get_item_group(mcl_playerinfo[name].node_head, "water") ~= 0 then
+			if not hud_water[player] or hud_water[player] and calculate_water_depth(player:get_pos()) ~= #hud_water[player] then
+				remove_water_hud(player)
+				hud_water[player] = {}
+				for i=1, calculate_water_depth(player:get_pos()) do
+					table.insert(hud_water[player], player:hud_add({
+						hud_elem_type = "image",
+						text = "mcl_playerplus_water.png",
+						position = {x = 0.5, y = 0.5},
+						scale = {x = 8, y = 4},
+						offset = {x = 0, y = 0},
+						z_index = -1002,
+					}))
+				end
+			end
+		else
+			remove_water_hud(player)
+		end
+
 		elytra.last_yaw = player:get_look_horizontal()
 		-- Update jump status immediately since we need this info in real time.
 		-- WARNING: This section is HACKY as hell since it is all just based on heuristics.