diff options
| -rw-r--r-- | init.lua | 85 |
1 files changed, 62 insertions, 23 deletions
@@ -1,9 +1,9 @@ --- --- Helper functions --- +--[[ Helpers ]]-- +-- Keep track of attached players (for leaveplayer) local attached = {} +-- Terrain checkers local function is_water(pos) local nn = minetest.get_node(pos).name return minetest.get_item_group(nn, "liquid") ~= 0 @@ -14,7 +14,7 @@ local function is_bike_friendly(pos) return minetest.get_item_group(nn, "crumbly") == 0 or minetest.get_item_group(nn, "bike_friendly") ~= 0 end - +-- Maths local function get_sign(i) if i == 0 then return 0 @@ -33,6 +33,7 @@ local function get_v(v) return math.sqrt(v.x ^ 2 + v.z ^ 2) end +-- Custom hand minetest.register_node("bike:hand", { description = "", range = 0, @@ -44,10 +45,9 @@ minetest.register_node("bike:hand", { node_placement_prediction = "", }) --- --- bike entity --- +--[[ Bike ]]-- +-- Default textures (overidden when mounted) local default_tex = { "metal_grey.png", "gear.png", @@ -66,6 +66,7 @@ local default_tex = { "spokes.png", } +-- Entity local bike = { physical = true, -- Warning: Do not change the position of the collisionbox top surface, @@ -76,33 +77,35 @@ local bike = { mesh = "bike.b3d", textures = default_tex, stepheight = 0.6, - driver = nil, old_driver = {}, - fake_player = {}, - v = 0, - last_v = 0, - max_v = 10, - fast_v = 0, - f_speed = 30, - last_y = nil, - up = false, + v = 0, -- Current velocity + last_v = 0, -- Last velocity + max_v = 10, -- Max velocity + fast_v = 0, -- Fast adder + f_speed = 30, -- Frame speed + last_y = nil, -- Last height + up = false, -- Are we going up? timer = 0, removed = false } +-- Dismont the player local function dismount_player(bike, exit) bike.object:set_velocity({x = 0, y = 0, z = 0}) + -- Make the bike empty again bike.object:set_properties({textures = default_tex}) bike.v = 0 if bike.driver then attached[bike.driver:get_player_name()] = nil bike.driver:set_detach() + -- Reset original player properties bike.driver:set_properties({textures=bike.old_driver["textures"]}) bike.driver:set_eye_offset(bike.old_driver["eye_offset"].offset_first, bike.old_driver["eye_offset"].offset_third) bike.driver:hud_set_flags(bike.old_driver["hud"]) bike.driver:get_inventory():set_stack("hand", 1, bike.old_driver["hand"]) + -- Is the player leaving? If so, dont do this stuff or Minetest will have a fit if not exit then local pos = bike.driver:get_pos() pos = {x = pos.x, y = pos.y + 0.2, z = pos.z} @@ -112,12 +115,14 @@ local function dismount_player(bike, exit) end end +-- Mounting function bike.on_rightclick(self, clicker) if not clicker or not clicker:is_player() then return end if not self.driver then attached[clicker:get_player_name()] = true + -- Make integrated player appear self.object:set_properties({ textures = { "metal_grey.png", @@ -137,10 +142,12 @@ function bike.on_rightclick(self, clicker) "spokes.png", }, }) + -- Save the player's properties that we need to change self.old_driver["textures"] = clicker:get_properties().textures self.old_driver["eye_offset"] = clicker:get_eye_offset() self.old_driver["hud"] = clicker:hud_get_flags() self.old_driver["hand"] = clicker:get_inventory():get_stack("hand", 1) + -- Change the hand clicker:get_inventory():set_stack("hand", 1, "bike:hand") local attach = clicker:get_attach() if attach and attach:get_luaentity() then @@ -151,6 +158,7 @@ function bike.on_rightclick(self, clicker) clicker:set_detach() end self.driver = clicker + -- Set new properties and hide HUD clicker:set_properties({textures = {"blank.png"}}) clicker:set_attach(self.object, "body", {x = 0, y = 10, z = 5}, {x = 0, y = 0, z = 0}) clicker:set_eye_offset({x=0,y=-3,z=10},{x=0,y=0,z=5}) @@ -158,11 +166,11 @@ function bike.on_rightclick(self, clicker) hotbar = false, wielditem = false, }) + -- Look forward initially clicker:set_look_horizontal(self.object:get_yaw()) end end - function bike.on_activate(self, staticdata, dtime_s) self.object:set_acceleration({x = 0, y = -9.8, z = 0}) self.object:set_armor_groups({immortal = 1}) @@ -170,21 +178,21 @@ function bike.on_activate(self, staticdata, dtime_s) self.v = tonumber(staticdata) end self.last_v = self.v + -- We aren't going up yet self.last_y = 0 end - function bike.get_staticdata(self) return tostring(self.v) end - function bike.on_punch(self, puncher) if not puncher or not puncher:is_player() or self.removed then return end if not self.driver then local inv = puncher:get_inventory() + -- We can only carry one bike if not inv:contains_item("main", "bike:bike") then local leftover = inv:add_item("main", "bike:bike") -- if no room in inventory add the bike to the world @@ -192,6 +200,7 @@ function bike.on_punch(self, puncher) minetest.add_item(self.object:get_pos(), leftover) end else + -- Turn it into raw materials if not (creative and creative.is_enabled_for(puncher:get_player_name())) then local ctrl = puncher:get_player_control() if not ctrl.sneak then @@ -206,22 +215,27 @@ function bike.on_punch(self, puncher) end end self.removed = true - -- delay remove to ensure player is detached + -- Delay remove to ensure player is detached minetest.after(0.1, function() self.object:remove() end) end end +-- Animations local function bike_anim(self) + -- The `self.object:get_animation().y ~= <frame>` is to check if the animation is already running if self.driver then local ctrl = self.driver:get_player_control() + -- Wheely if ctrl.jump then + -- We are moving if self.v > 0 then if self.object:get_animation().y ~= 79 then self.object:set_animation({x=59,y=79}, self.f_speed + self.fast_v, 0, true) end return + -- Else we are not else if self.object:get_animation().y ~= 59 then self.object:set_animation({x=59,y=59}, self.f_speed + self.fast_v, 0, true) @@ -229,6 +243,7 @@ local function bike_anim(self) return end end + -- Left or right tilt, but only if we arent doing a wheely if ctrl.left then if self.object:get_animation().y ~= 58 then self.object:set_animation({x=39,y=58}, self.f_speed + self.fast_v, 0, true) @@ -241,11 +256,13 @@ local function bike_anim(self) return end end + -- If none of that, then we are just moving forward if self.v > 0 then if self.object:get_animation().y ~= 18 then self.object:set_animation({x=0,y=18}, 30, 0, true) end return + -- Or not else if self.object:get_animation().y ~= 0 then self.object:set_animation({x=0,y=0}, 0, 0, false) @@ -253,16 +270,21 @@ local function bike_anim(self) end end +-- Run every tick function bike.on_step(self, dtime) + -- Has the player left? if self.driver then if not attached[self.driver:get_player_name()] then dismount_player(self, true) end end + -- Have we come to a sudden stop? if math.abs(self.last_v - self.v) > 3 then + -- And is Minetest not being dumb if not self.up then self.v = 0 + -- If so, dismount if self.driver then dismount_player(self) end @@ -273,19 +295,24 @@ function bike.on_step(self, dtime) self.timer = self.timer + dtime; if self.timer >= 0.5 then + -- Recording y values to check if we are going up self.last_y = self.object:get_pos().y self.timer = 0 end + -- Are we going up? if self.last_y < self.object:get_pos().y then self.up = true else self.up = false end + -- Run animations bike_anim(self) + -- Are we falling? if self.object:get_velocity().y < -10 and self.driver ~= nil then + -- If so, dismount dismount_player(self) return end @@ -297,6 +324,7 @@ function bike.on_step(self, dtime) local yaw = self.object:get_yaw() local agility = 0 + -- Sneak dismount if ctrl.sneak then dismount_player(self) end @@ -307,7 +335,9 @@ function bike.on_step(self, dtime) agility = 1.58 end + -- Forward if ctrl.up then + -- Are we going fast? if ctrl.aux1 then if self.fast_v ~= 5 then self.fast_v = 5 @@ -318,11 +348,13 @@ function bike.on_step(self, dtime) end end self.v = self.v + 0.2 + (self.fast_v*0.1) * agility + -- Brakes elseif ctrl.down then self.v = self.v - 0.5 * agility if self.fast_v > 0 then self.fast_v = self.fast_v - 0.05 * agility end + -- Nothin' else self.v = self.v - 0.05 * agility if self.fast_v > 0 then @@ -330,20 +362,24 @@ function bike.on_step(self, dtime) end end + -- Wheely will change this local turn_speed = 1 + -- Are we doing a wheely? if ctrl.jump then turn_speed = 2 else turn_speed = 1 end + -- Turning if ctrl.left then self.object:set_yaw(yaw + (turn_speed + dtime) * 0.06 * agility) elseif ctrl.right then self.object:set_yaw(yaw - (turn_speed + dtime) * 0.06 * agility) end end + -- Movement local velo = self.object:get_velocity() if self.v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then self.object:move_to(self.object:get_pos()) @@ -365,6 +401,8 @@ function bike.on_step(self, dtime) if is_water(p) then self.v = self.v / 1.3 end + + -- Can we ride good here? if not is_bike_friendly({x=p.x, y=p.y-0.355, z=p.z}) then self.v = self.v / 1.05 end @@ -375,21 +413,21 @@ function bike.on_step(self, dtime) self.object:set_velocity(new_velo) end +-- Player is leaving (doesn't matter if they are on a bike or not) minetest.register_on_leaveplayer(function(player) attached[player:get_player_name()] = nil end) +-- Register the entity minetest.register_entity("bike:bike", bike) - +-- Craftitem minetest.register_craftitem("bike:bike", { description = "bike", inventory_image = "bike_inventory.png", - --wield_image = "bike_wield.png", wield_scale = {x = 3, y = 3, z = 2}, liquids_pointable = true, groups = {flammable = 2}, - on_place = function(itemstack, placer, pointed_thing) local under = pointed_thing.under local node = minetest.get_node(under) @@ -420,6 +458,7 @@ minetest.register_craftitem("bike:bike", { end, }) +-- Crafting things minetest.register_craftitem("bike:wheel", { description = "Bike Wheel", inventory_image = "bike_wheel.png", |