forked from mtcontrib/boost_cart
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Author | SHA1 | Date | |
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e4edb96d30 | ||
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3386942d71 | ||
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d486143f42 | ||
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34155473a9 | ||
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7e275e1985 | ||
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c6b9e4b672 | ||
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3781f6d4c0 | ||
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f4c1a2ec3b | ||
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57d09fac79 |
@ -19,12 +19,14 @@ function boost_cart:on_rail_step(entity, pos, distance)
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end
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local cart_entity = {
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physical = false,
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collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
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visual = "mesh",
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mesh = "cart.x",
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visual_size = {x=1, y=1},
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textures = {"cart.png"},
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initial_properties = {
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physical = false,
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collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
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visual = "mesh",
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mesh = "cart.x",
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visual_size = {x=1, y=1},
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textures = {"cart.png"},
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},
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driver = nil,
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punched = false, -- used to re-send velocity and position
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@ -34,15 +36,13 @@ local cart_entity = {
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old_switch = 0,
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sound_counter = 0,
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railtype = nil,
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attached_items = {},
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automatic_face_movement_dir = -90.0,
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automatic_face_movement_max_rotation_per_sec = 360 * 4,
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attached_items = {}
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}
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-- Model and textures
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if boost_cart.mtg_compat then
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cart_entity.mesh = "carts_cart.b3d"
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cart_entity.textures = {"carts_cart.png"}
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cart_entity.initial_properties.mesh = "carts_cart.b3d"
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cart_entity.initial_properties.textures = {"carts_cart.png"}
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end
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function cart_entity:on_rightclick(clicker)
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@ -56,6 +56,12 @@ function cart_entity:on_rightclick(clicker)
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elseif not self.driver then
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self.driver = player_name
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boost_cart:manage_attachment(clicker, self.object)
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if default.player_set_animation then
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-- player_api(/default) does not update the animation
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-- when the player is attached, reset to default animation
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default.player_set_animation(clicker, "stand")
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end
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end
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end
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@ -71,18 +77,29 @@ function cart_entity:on_activate(staticdata, dtime_s)
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return
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end
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self.railtype = data.railtype
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if data.old_dir then
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self.old_dir = data.old_dir
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self.old_dir = data.old_dir or self.old_dir
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self.old_pos = data.old_pos or self.old_pos
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-- Correct the position when the cart drives further after the last 'step()'
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if self.old_pos and boost_cart:is_rail(self.old_pos, self.railtype) then
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self.object:set_pos(self.old_pos)
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end
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end
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function cart_entity:get_staticdata()
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return minetest.serialize({
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railtype = self.railtype,
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old_dir = self.old_dir
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old_dir = self.old_dir,
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old_pos = self.old_pos
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})
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end
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-- 0.5.x and later: When the driver leaves
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function cart_entity:on_detach_child(child)
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if child and child:get_player_name() == self.driver then
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self.driver = nil
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end
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end
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function cart_entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
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local pos = self.object:get_pos()
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local vel = self.object:get_velocity()
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@ -218,11 +235,12 @@ function cart_entity:on_step(dtime)
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)
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local dir_changed = not vector.equals(dir, self.old_dir)
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local new_acc = {x=0, y=0, z=0}
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local acc = 0
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if stop_wiggle or vector.equals(dir, {x=0, y=0, z=0}) then
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vel = {x=0, y=0, z=0}
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local pos_r = vector.round(pos)
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if not boost_cart:is_rail(pos_r, self.railtype) then
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if not boost_cart:is_rail(pos_r, self.railtype)
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and self.old_pos then
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pos = self.old_pos
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elseif not stop_wiggle then
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pos = pos_r
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@ -234,7 +252,7 @@ function cart_entity:on_step(dtime)
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else
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-- Direction change detected
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if dir_changed then
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vel = vector.multiply(dir, v3_len(vel))
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vel = vector.multiply(dir, math.abs(vel.x + vel.z))
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update.vel = true
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if dir.y ~= self.old_dir.y then
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pos = vector.round(pos)
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@ -252,7 +270,7 @@ function cart_entity:on_step(dtime)
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end
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-- Calculate current cart acceleration
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local acc = nil
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acc = nil
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local acc_meta = minetest.get_meta(pos):get_string("cart_acceleration")
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if acc_meta == "halt" and not self.punched then
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@ -294,21 +312,20 @@ function cart_entity:on_step(dtime)
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else
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acc = 0
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end
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new_acc = vector.multiply(dir, acc)
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end
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-- Limits
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local max_vel = boost_cart.speed_max
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for _,v in pairs({"x","y","z"}) do
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if math.abs(vel[v]) > max_vel then
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vel[v] = boost_cart:get_sign(vel[v]) * max_vel
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new_acc[v] = 0
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update.vel = true
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end
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-- Limit cart speed
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local vel_len = vector.length(vel)
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if vel_len > boost_cart.speed_max then
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vel = vector.multiply(vel, boost_cart.speed_max / vel_len)
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update.vel = true
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end
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if vel_len >= boost_cart.speed_max and acc > 0 then
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acc = 0
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end
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self.object:set_acceleration(new_acc)
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self.object:set_acceleration(vector.multiply(dir, acc))
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self.old_pos = vector.round(pos)
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local old_y_dir = self.old_dir.y
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if not vector.equals(dir, {x=0, y=0, z=0}) and not stop_wiggle then
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@ -343,17 +360,15 @@ function cart_entity:on_step(dtime)
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-- Re-use "dir", localize self.old_dir
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dir = self.old_dir
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if stop_wiggle then
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local yaw = 0
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if dir.x < 0 then
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yaw = 0.5
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elseif dir.x > 0 then
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yaw = 1.5
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elseif dir.z < 0 then
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yaw = 1
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end
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self.object:set_yaw(yaw * math.pi)
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local yaw = 0
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if dir.x < 0 then
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yaw = 0.5
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elseif dir.x > 0 then
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yaw = 1.5
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elseif dir.z < 0 then
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yaw = 1
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end
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self.object:set_yaw(yaw * math.pi)
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local anim = {x=0, y=0}
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if dir.y == -1 then
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71
doc/mod_api.txt
Normal file
71
doc/mod_api.txt
Normal file
@ -0,0 +1,71 @@
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boost_cart API
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==============
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This file provides information about the API of boost_cart for the use in
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mods. The API might change slightly when the development goes on, so avoid
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using internal tables or functions which are not documented here.
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Types
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-----
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* `SwitchIgnore` -> `number/nil`
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* Specifies which player control was pressed. This value is used to prefer
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straight rails instead of preferring left and right rail checks.
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* `1`: Ignore left rail
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* `2`: Ignore right rail
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* `nil`: Ignore no rail
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Entity movement
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---------------
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These functions are grouped so that they make sense and then sorted alphabetically.
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* `boost_cart:manage_attachment(player, obj)`
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* Attaches or detaches the player to/from an object, depending on what is
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supplied to `obj`.
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* `player`: `ObjectRef` of the player
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* `obj`: `ObjectRef` (to attach) or `nil` (to detach)
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* `boost_cart:get_sign(n)` -> `number`
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* Returns the sign for the given number. Values: `-1`, `0`, `1`
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* `n`: any `number`
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* `boost_cart:velocity_to_dir(vel)` -> `vector`
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* Returns the cart direction depending on `vel`. Each coordinate can have
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one of the `get_sign()` return values.
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* `vel`: velocity as `vector`
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* `boost_cart:boost_rail(pos, amount)`
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* Sets the rail acceleration for the given position to `amount` and punches
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carts which are at the given position.
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* `pos`: `vector`, rail position
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* `amount`: `number`, negative to brake, positive to boost
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* `boost_cart:get_rail_direction(pos, dir, ctrl, old_switch, railtype)`
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-> `vector, SwitchIgnore`
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* Returns the direction to where the next rail is, and which player control that
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should be ignored in the next call.
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* `pos`: `vector`, position of the cart
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* `dir`: `vector`, movement direction of the cart (see `velocity_to_dir()`)
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* `ctrl`: Player controls table or `nil` (no player)
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* `old_switch`: `SwitchIgnore`
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* `railtype`: (optional) `number`, gets passed indirectly to `is_rail()`
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Rail helper functions
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---------------------
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* `boost_cart:get_rail_groups(groups)` -> `table`
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* Returns a group table with preset values for a common rail node
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* `groups`: (optional) `table`, additional groups append (or overwrite)
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* Hint: To register an incompatible rail type, set the group
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`connect_to_raillike` to the value returned by
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`minetest.raillike_group(new_rail_type)`
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* `boost_cart:is_rail(pos, [railtype])` -> `boolean`
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* Returns whether the node at `pos` is a rail. When `railtype` is specified,
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`true` is only returned when the node is in the same rail group.
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* `pos`: `vector` of the node to check
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* `railtype`: (optional) `number`, rail group number
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* `boost_cart:register_rail(name, def)`
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* Registers a new rail with preset node definition defaults as fallback
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* `name`: `string`, node name of the new rail
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* `def`: Node definition table, containing at least the following keys:
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* `description`
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* `groups`
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* `tiles`
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@ -19,6 +19,9 @@ function boost_cart:manage_attachment(player, obj)
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if status then
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local y_pos = self.old_player_model and 6 or -4
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if player:get_properties().visual == "upright_sprite" then
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y_pos = -4
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end
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player:set_attach(obj, "", {x=0, y=y_pos, z=0}, {x=0, y=0, z=0})
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player:set_eye_offset({x=0, y=-4, z=0},{x=0, y=-4, z=0})
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else
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@ -104,6 +107,16 @@ function boost_cart:get_rail_direction(pos_, dir, ctrl, old_switch, railtype)
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right.z = -dir.x
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end
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local straight_priority = ctrl and dir.y ~= 0
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-- Normal, to disallow rail switching up- & downhill
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if straight_priority then
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cur = self:check_front_up_down(pos, dir, true, railtype)
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if cur then
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return cur
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end
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end
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if ctrl then
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if old_switch == 1 then
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left_check = false
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@ -127,9 +140,11 @@ function boost_cart:get_rail_direction(pos_, dir, ctrl, old_switch, railtype)
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end
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-- Normal
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cur = self:check_front_up_down(pos, dir, true, railtype)
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if cur then
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return cur
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if not straight_priority then
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cur = self:check_front_up_down(pos, dir, true, railtype)
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if cur then
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return cur
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end
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end
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-- Left, if not already checked
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@ -208,6 +223,9 @@ function boost_cart:boost_rail(pos, amount)
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end
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function boost_cart:register_rail(name, def_overwrite)
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local sound_func = default.node_sound_metal_defaults
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or default.node_sound_defaults
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local def = {
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drawtype = "raillike",
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paramtype = "light",
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@ -217,7 +235,8 @@ function boost_cart:register_rail(name, def_overwrite)
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selection_box = {
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type = "fixed",
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fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
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}
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},
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sounds = sound_func()
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}
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for k, v in pairs(def_overwrite) do
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def[k] = v
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4
init.lua
4
init.lua
@ -25,8 +25,8 @@ if not default.player_attached then
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default.player_attached = {}
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end
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minetest.after(1, function()
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boost_cart.old_player_model = type(player_api) ~= "table"
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minetest.after(0, function()
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boost_cart.old_player_model = not minetest.global_exists("player_api")
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end)
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dofile(boost_cart.modpath.."/functions.lua")
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@ -18,6 +18,15 @@ boost_cart:register_rail(":"..regular_rail_itemname, {
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-- Moreores' copper rail
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if minetest.get_modpath("moreores") then
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minetest.register_alias("carts:copperrail", "moreores:copper_rail")
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if minetest.raillike_group then
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-- Ensure that this rail uses the same connect_to_raillike
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local new_groups = minetest.registered_nodes["moreores:copper_rail"].groups
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new_groups.connect_to_raillike = minetest.raillike_group("rail")
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minetest.override_item("moreores:copper_rail", {
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groups = new_groups
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})
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end
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else
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boost_cart:register_rail(":carts:copperrail", {
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description = "Copper rail",
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Block a user