added collision in front axis

automobiles_buggy/buggy_entities.lua

@@ -559,18 +559,6 @@ minetest.register_entity("automobiles_buggy:buggy", {
                 self._steering_angle / 30 * turn_rate * automobiles_lib.sign(longit_speed)
 		end
 
-        self._last_ground_check = self._last_ground_check + dtime
-        if self._last_ground_check > 0.18 then
-            self._last_ground_check = 0
-            automobiles_lib.ground_get_distances(self, 0.372, 2.3)
-        end
-
-        --[[if player and is_attached then
-            player:set_look_horizontal(newyaw)
-        end]]--
-
-		local newpitch = self._pitch --velocity.y * math.rad(6)
-
         --[[
         accell correction
         under some circunstances the acceleration exceeds the max value accepted by set_acceleration and
@@ -622,6 +610,13 @@ minetest.register_entity("automobiles_buggy:buggy", {
             end
         end
 
+        self._last_ground_check = self._last_ground_check + dtime
+        if self._last_ground_check > 0.18 then
+            self._last_ground_check = 0
+            automobiles_lib.ground_get_distances(self, 0.372, 2.3)
+        end
+		local newpitch = self._pitch --velocity.y * math.rad(6)
+
 		if newyaw~=yaw or newpitch~=pitch then self.object:set_rotation({x=newpitch,y=newyaw,z=0}) end
 
         --saves last velocity for collision detection (abrupt stop)

automobiles_coupe/coupe_entities.lua

@@ -586,19 +586,6 @@ minetest.register_entity("automobiles_coupe:coupe", {
             self._turn_light_timer = 1
         end
         
-
-        self._last_ground_check = self._last_ground_check + dtime
-        if self._last_ground_check > 0.18 then
-            self._last_ground_check = 0
-            automobiles_lib.ground_get_distances(self, 0.372, 2.3)
-        end
-
-        --[[if player and is_attached then
-            player:set_look_horizontal(newyaw)
-        end]]--
-
-		local newpitch = self._pitch --velocity.y * math.rad(6)
-
         --[[
         accell correction
         under some circunstances the acceleration exceeds the max value accepted by set_acceleration and
@@ -650,6 +637,13 @@ minetest.register_entity("automobiles_coupe:coupe", {
             end
         end
 
+        self._last_ground_check = self._last_ground_check + dtime
+        if self._last_ground_check > 0.18 then
+            self._last_ground_check = 0
+            automobiles_lib.ground_get_distances(self, 0.372, 2.3)
+        end
+		local newpitch = self._pitch --velocity.y * math.rad(6)
+
 		if newyaw~=yaw or newpitch~=pitch then self.object:set_rotation({x=newpitch,y=newyaw,z=0}) end
 
         --saves last velocity for collision detection (abrupt stop)

automobiles_lib/ground_detection.lua

@@ -1,6 +1,5 @@
 --lets assume that the rear axis is at object center, so we will use the distance only for front wheels
 function automobiles_lib.ground_get_distances(self, radius, axis_distance)
-
     --local mid_axis = (axis_length / 2)/10
     local hip = axis_distance
     --minetest.chat_send_all("entre-eixo "..hip)
@@ -21,6 +20,10 @@ function automobiles_lib.ground_get_distances(self, radius, axis_distance)
     local rear_obstacle_level = automobiles_lib.get_obstacle(rear_axis)
     --minetest.chat_send_all("rear"..dump(rear_obstacle_level))
 
+    if not self._last_front_detection then
+        self._last_front_detection = rear_obstacle_level.y
+    end
+
     local f_x, f_z = automobiles_lib.get_xz_from_hipotenuse(pos.x, pos.z, yaw, hip)
     local f_y = pos.y
     --local x, f_y = automobiles_lib.get_xz_from_hipotenuse(f_x, r_y, pitch - math.rad(90), hip) --the x is only a mock
@@ -56,29 +59,36 @@ function automobiles_lib.ground_get_distances(self, radius, axis_distance)
 
     --lets try to get the pitch
     if front_obstacle_level.y ~= nil and rear_obstacle_level.y ~= nil then
-        local deltaX = axis_distance;
+        if (front_obstacle_level.y-self._last_front_detection) <= self.initial_properties.stepheight then
-        local deltaY = front_obstacle_level.y - rear_obstacle_level.y;
+            self._last_front_detection = front_obstacle_level.y
-        --minetest.chat_send_all("deutaY "..deltaY)
+            local deltaX = axis_distance;
-        local m = (deltaY/deltaX)
+            local deltaY = front_obstacle_level.y - rear_obstacle_level.y;
-        pitch = math.atan(m) --math.atan2(deltaY, deltaX);
+            --minetest.chat_send_all("deutaY "..deltaY)
-        --minetest.chat_send_all("m: "..m.." pitch ".. math.deg(pitch))
+            local m = (deltaY/deltaX)
-
+            pitch = math.atan(m) --math.atan2(deltaY, deltaX);
-        --[[if mid_car_level then
+            --minetest.chat_send_all("m: "..m.." pitch ".. math.deg(pitch))
-            deltaX = axis_distance/2;
-            if mid_car_level.y ~= nil then
-                local deltaY_mid = mid_car_level.y - rear_obstacle_level.y;
-                if deltaY >= 1 and deltaY_mid < (deltaY / 2) then
-                    --self.initial_properties.stepheight
-                    pitch = math.rad(0)
-                end
-                --[[m = (deltaY_mid/deltaX)
-                local midpitch = math.atan(m)
-                if math.abs(math.deg(pitch) - math.deg(midpitch)) < 20 then
-                    pitch = pitch + ((pitch - midpitch) / 2)
-                end]]--
-            --[[end
-        end]]--
 
+            --[[if mid_car_level then
+                deltaX = axis_distance/2;
+                if mid_car_level.y ~= nil then
+                    local deltaY_mid = mid_car_level.y - rear_obstacle_level.y;
+                    if deltaY >= 1 and deltaY_mid < (deltaY / 2) then
+                        --self.initial_properties.stepheight
+                        pitch = math.rad(0)
+                    end
+                    --[[m = (deltaY_mid/deltaX)
+                    local midpitch = math.atan(m)
+                    if math.abs(math.deg(pitch) - math.deg(midpitch)) < 20 then
+                        pitch = pitch + ((pitch - midpitch) / 2)
+                    end]]--
+                --[[end
+            end]]--
+        else
+            self._last_front_detection = rear_obstacle_level.y
+            --here we need to set the collision effect
+            self.object:set_acceleration({x=0,y=0,z=0})
+            self.object:set_velocity({x=0,y=0,z=0})
+        end
     else
         pitch = math.rad(0)
     end

automobiles_roadster/roadster_entities.lua

@@ -532,18 +532,6 @@ minetest.register_entity("automobiles_roadster:roadster", {
                 self._steering_angle / 30 * turn_rate * automobiles_lib.sign(longit_speed)
 		end
 
-        self._last_ground_check = self._last_ground_check + dtime
-        if self._last_ground_check > 0.18 then
-            self._last_ground_check = 0
-            automobiles_lib.ground_get_distances(self, 0.5, 2.422)
-        end
-
-        --[[if player and is_attached then
-            player:set_look_horizontal(newyaw)
-        end]]--
-
-		local newpitch = self._pitch --velocity.y * math.rad(6)
-
         --[[
         accell correction
         under some circunstances the acceleration exceeds the max value accepted by set_acceleration and
@@ -595,6 +583,13 @@ minetest.register_entity("automobiles_roadster:roadster", {
             end
         end
 
+        self._last_ground_check = self._last_ground_check + dtime
+        if self._last_ground_check > 0.18 then
+            self._last_ground_check = 0
+            automobiles_lib.ground_get_distances(self, 0.5, 2.422)
+        end
+		local newpitch = self._pitch --velocity.y * math.rad(6)
+
 		if newyaw~=yaw or newpitch~=pitch then self.object:set_rotation({x=newpitch,y=newyaw,z=0}) end
 
         --saves last velocity for collision detection (abrupt stop)