forked from minetest-mods/camera
134 lines
3.6 KiB
Lua
134 lines
3.6 KiB
Lua
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--[[
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Copyright 2016 - Auke Kok <sofar@foo-projects.org>
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License:
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- Code: WTFPL
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- Models and textures: CC-BY-SA-3.0
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Usage: /give <name> camera:camera
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left click a camera item to start recording. While recording:
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- use up/down to accelerate/decelerate
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- use jump to brake
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- use crouch to stop recording
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right click a camera item to play back a recording. While playing back:
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- use crouch to stop playing back
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--]]
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local recordings = {}
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local camera = {
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description = "Camera",
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physical = false,
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visual = "mesh",
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mesh = "camera.obj",
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textures = { "camera_camera.png" },
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collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
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driver = nil,
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mode = 0,
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velocity = {x=0, y=0, z=0},
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old_pos = nil,
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old_velocity = nil,
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pre_stop_dir = nil,
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MAX_V = 20,
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init = function(self, player, mode)
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self.driver = player
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self.mode = mode
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self.path = {}
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end,
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}
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function camera:on_step(dtime)
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if not self.driver then
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self.object:remove()
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return
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end
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local pos = self.object:getpos()
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local vel = self.object:getvelocity()
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local dir = self.driver:get_look_dir()
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if self.mode == 0 then
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-- record
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self.path[#self.path + 1] = {
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pos = pos,
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velocity = vel,
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pitch = self.driver:get_look_pitch(),
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yaw = self.driver:get_look_yaw()
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}
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-- player control of vehicle
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-- always modify yaw/pitch to match player
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self.object:set_look_pitch(self.driver:get_look_pitch())
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self.object:set_look_yaw(self.driver:get_look_yaw())
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-- accel/decel/stop
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local ctrl = self.driver:get_player_control()
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local speed = vector.distance(vector.new(), vel)
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if ctrl.up then
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-- forward accelerate
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speed = math.min(speed + 0.1, 20)
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end
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if ctrl.down then
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-- backward acccelerate
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speed = math.max(speed - 0.1, -20)
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end
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if ctrl.jump then
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-- brake
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speed = math.max(speed * 0.9, 0.0)
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end
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if ctrl.sneak then
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-- stop recording!
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self.driver:set_detach()
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minetest.chat_send_player(self.driver:get_player_name(), "Recorded stopped after " .. #self.path .. " points")
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recordings[self.driver:get_player_name()] = table.copy(self.path)
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self.object:remove()
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return
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end
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self.object:setvelocity(vector.multiply(self.driver:get_look_dir(), speed))
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elseif self.mode == 1 then
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-- stop playback ?
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local ctrl = self.driver:get_player_control()
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if ctrl.sneak or #self.path < 1 then
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-- stop playback
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self.driver:set_detach()
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minetest.chat_send_player(self.driver:get_player_name(), "Playback stopped")
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self.object:remove()
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return
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end
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-- playback
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self.object:moveto(self.path[1].pos, true)
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self.driver:set_look_yaw(self.path[1].yaw - (math.pi/2))
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self.driver:set_look_pitch(0 - self.path[1].pitch)
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self.object:setvelocity(self.path[1].velocity)
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table.remove(self.path, 1)
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end
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end
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minetest.register_entity("camera:camera", camera)
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minetest.register_craftitem("camera:camera", {
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description = "Camera",
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inventory_image = "camera_item.png",
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on_use = function(itemstack, player, pointed_thing)
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local object = minetest.add_entity(player:getpos(), "camera:camera")
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object:get_luaentity():init(player, 0)
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object:setyaw(player:get_look_yaw())
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player:set_attach(object, "", {x=0,y=10,z=0}, {x=0,y=0,z=0})
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end,
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on_secondary_use = function(itemstack, player, pointed_thing)
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if not recordings[player:get_player_name()] then
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return
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end
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local object = minetest.add_entity(player:getpos(), "camera:camera")
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object:get_luaentity():init(player, 1)
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object:setyaw(player:get_look_yaw())
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player:set_attach(object, "", {x=5,y=10,z=0}, {x=0,y=0,z=0})
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object:get_luaentity().path = table.copy(recordings[player:get_player_name()])
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end,
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})
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