added full support to water splash

init.lua

@@ -60,6 +60,12 @@ if not minetest.settings:get_bool('airutils_disable_repair') then
     dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "airutils_repair.lua")
 end
 
+airutils.splash_texture = "airutils_splash.png"
+airutils.use_water_particles = false
+if minetest.settings:get_bool('airutils_enable_water_particles', false) then
+    airutils.use_water_particles = true
+end
+
 airutils._use_signs_api = true
 if not minetest.get_modpath("signs_lib") then airutils._use_signs_api = false end
 if minetest.settings:get_bool('airutils_disable_signs_api') then airutils._use_signs_api = false end
@@ -78,8 +84,6 @@ dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "texture_management.lua"
 dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "attach_extern_ent.lua")
 if airutils._use_signs_api then dofile(minetest.get_modpath("airutils") .. DIR_DELIM .. "text.lua") end
 
-airutils.splash_texture = "airutils_splash.png"
-
 local is_biofuel_installed = false
 if biomass then
     if biomass.convertible_groups then is_biofuel_installed = true end

lib_planes/entities.lua

@@ -535,6 +535,19 @@ function airutils.logic(self)
         if h_vel_compensation > max_pitch then h_vel_compensation = max_pitch end
         --minetest.chat_send_all(h_vel_compensation)
         newpitch = newpitch + (velocity.y * math.rad(max_pitch - h_vel_compensation))
+
+        if airutils.use_water_particles == true and airutils.add_splash and self._splash_x_position and self.buoyancy then
+            local splash_frequency = 0.15
+            if self._last_splash == nil then self._last_splash = 0.5 else self._last_splash = self._last_splash + self.dtime end
+            if longit_speed >= 2.0 and self._last_vel and self._last_splash >= splash_frequency then
+                self._last_splash = 0
+                local splash_pos = vector.new(curr_pos)
+                local bellow_position = self.initial_properties.collisionbox[2]
+                local collision_height = self.initial_properties.collisionbox[5] - bellow_position
+                splash_pos.y = splash_pos.y + (bellow_position + (collision_height * self.buoyancy)) - (collision_height/10)
+                airutils.add_splash(splash_pos, newyaw, self._splash_x_position)
+            end
+        end
     end
 
     local new_accel = accel

settingtypes.txt

@@ -18,3 +18,7 @@ airutils_debug_log (log of entity activation) bool false
 
 # disable the usage of signs_api by the vehicles
 airutils_disable_signs_api (no names writen on vehicles surface) bool false
+
+# enable water particles effect
+airutils_enable_water_particles (enable particles on water) bool false
+

water_splash.lua

@@ -10,14 +10,14 @@ local function calculateVelocity(magnitude, angle)
     return velocity
 end
 
-local function water_particle(pos, vel)
+local function water_particle(pos, accell)
     if airutils.splash_texture == nil then return end
     if airutils.splash_texture == "" then return end
 
 	minetest.add_particle({
 		pos = pos,
-		velocity = vel, --{x = 0, y = 0, z = 0},
-		acceleration = {x = 0, y = 0, z = 0},
+		velocity = {x = 0, y = 0, z = 0},
+		acceleration = accell, --{x = 0, y = 0, z = 0},
 		expirationtime = 2.0,
 		size = 4.8,
 		collisiondetection = false,
@@ -38,7 +38,7 @@ function airutils.add_splash(pos, yaw, x_pos)
     spl_pos.x = spl_pos.x + move * math.cos(direction)
     spl_pos.z = spl_pos.z + move * math.sin(direction)
     
-    local velocity = calculateVelocity(1.0, yaw)
+    local velocity = calculateVelocity(0.2, yaw)
     water_particle(spl_pos, velocity)
 
     --left
@@ -47,6 +47,6 @@ function airutils.add_splash(pos, yaw, x_pos)
     spl_pos.x = spl_pos.x + move * math.cos(direction)
     spl_pos.z = spl_pos.z + move * math.sin(direction)
     
-    velocity = calculateVelocity(1.0, yaw - math.rad(180))
+    velocity = calculateVelocity(0.2, yaw - math.rad(180))
     water_particle(spl_pos, velocity)
 end