maidroid/maidroid_core/cores/basic.lua

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------------------------------------------------------------
-- Copyright (c) 2016 tacigar. All rights reserved.
-- https://github.com/tacigar/maidroid
------------------------------------------------------------
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local state = {IDLE = 0, ACCOMPANY = 1}
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local function on_start(self)
self.state = state.IDLE
self.object:setacceleration{x = 0, y = -10, z = 0}
self.object:setvelocity{x = 0, y = 0, z = 0}
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end
local function on_stop(self)
self.state = nil
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self.object:setvelocity{x = 0, y = 0, z = 0}
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end
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local on_resume = on_start
local on_pause = on_stop
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local function on_step(self, dtime)
local player = self:get_nearest_player(10)
if player == nil then
self:set_animation(maidroid.animation_frames.STAND)
return
end
local position = self.object:getpos()
local player_position = player:getpos()
local direction = vector.subtract(player_position, position)
local velocity = self.object:getvelocity()
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if vector.length(direction) < 3 then
if self.state == state.ACCOMPANY then
self:set_animation(maidroid.animation_frames.STAND)
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self.state = state.IDLE
self.object:setvelocity{x = 0, y = velocity.y, z = 0}
end
else
if self.state == state.IDLE then
self:set_animation(maidroid.animation_frames.WALK)
self.state = state.ACCOMPANY
end
self.object:setvelocity{x = direction.x, y = velocity.y, z = direction.z} -- TODO
end
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self:set_yaw_by_direction(direction)
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-- if maidroid is stoped by obstacle, the maidroid must jump.
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if velocity.y == 0 and self.state == state.ACCOMPANY then
local front_node = self:get_front_node()
if front_node.name ~= "air" then
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self.object:setvelocity{x = direction.x, y = 5, z = direction.z}
end
end
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end
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-- register a definition of a new core.
maidroid.register_core("maidroid_core:basic", {
description = "maidroid core : basic",
inventory_image = "maidroid_core_basic.png",
on_start = on_start,
on_stop = on_stop,
on_resume = on_resume,
on_pause = on_pause,
on_step = on_step,
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})