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Make minecarts solid and add players pushing

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This commit is contained in:
teknomunk 2024-03-13 14:22:23 +00:00
parent 1618693726
commit 44f9a3e619
1 changed files with 45 additions and 11 deletions
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56
mods/ENTITIES/mcl_minecarts/init.lua
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@ -118,6 +118,28 @@ local function update_cart_orientation(self,staticdata)
self.object:set_rotation(rot)
end
local function direction_away_from_players(self, staticdata)
local objs = minetest.get_objects_inside_radius(self.object:get_pos(), 1.1)
for n=1,#objs do
obj = objs[n]
local player_name = obj:get_player_name()
if player_name and player_name ~= "" and not ( self._driver and self._driver == player_name ) then
local diff = obj:get_pos() - self.object:get_pos()
local length = vector.distance(vector.new(0,0,0),diff)
local vec = diff / length
local force = vector.dot( vec, vector.normalize(staticdata.dir) )
if force > 0.5 then
return -length * 4
elseif force < -0.5 then
return length * 4
end
end
end
return 0
end
local function calculate_acceleration(self, staticdata)
local acceleration = 0
@ -158,6 +180,17 @@ local function calculate_acceleration(self, staticdata)
return acceleration
end
local function reverse_direction(self, staticdata)
-- Complete moving thru this block into the next, reverse direction, and put us back at the same position we were at
local next_dir = -staticdata.dir
staticdata.connected_at = staticdata.connected_at + staticdata.dir
staticdata.distance = 1 - staticdata.distance
-- recalculate direction
local next_dir,_ = mcl_minecarts:get_rail_direction(staticdata.connected_at, next_dir, nil, nil, staticdata.railtype)
staticdata.dir = next_dir
end
local function do_movement_step(self, dtime)
local staticdata = self._staticdata
if not staticdata.connected_at then return 0 end
@ -168,6 +201,15 @@ local function do_movement_step(self, dtime)
local a = calculate_acceleration(self, staticdata)
local v_0 = staticdata.velocity
-- Repel minecarts
local away = direction_away_from_players(self, staticdata)
if away > 0 then
v_0 = away
elseif away < 0 then
reverse_direction(self, staticdata)
v_0 = -away
end
if DEBUG and ( v_0 > 0 or a ~= 0 ) then
print( " cart #"..tostring(staticdata.cart_id)..
": a="..tostring(a)..
@ -265,18 +307,10 @@ local function do_movement_step(self, dtime)
-- Velocity should be zero at this point
staticdata.velocity = 0
-- Complete moving thru this block into the next, reverse direction, and put us back at the same position we were at
local next_dir = -staticdata.dir
pos = pos + staticdata.dir
staticdata.distance = 1 - staticdata.distance
staticdata.connected_at = pos
-- recalculate direction
local next_dir,_ = mcl_minecarts:get_rail_direction(pos + staticdata.dir, next_dir, nil, nil, staticdata.railtype)
staticdata.dir = next_dir
reverse_direction(self, staticdata)
-- Intermediate movement
pos = pos + staticdata.dir * staticdata.distance
pos = staticdata.connected_at + staticdata.dir * staticdata.distance
else
-- Intermediate movement
pos = pos + staticdata.dir * staticdata.distance
@ -536,7 +570,7 @@ local function register_entity(entity_id, def)
assert( def.drop, "drop is required parameter" )
local cart = {
initial_properties = {
physical = false,
physical = true,
collisionbox = {-10/16., -0.5, -10/16, 10/16, 0.25, 10/16},
visual = "mesh",
mesh = def.mesh,