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local game = require 'game'
local physics = require 'physics'
local Camera = require 'Camera'
local Bolvis = physics.Object:extend()
Bolvis.sprite = love.graphics.newImage("bolvis.png", {dpiscale = 5})
Bolvis.z = 50
local Hand = game.Object:extend()
Hand.sprite_open = love.graphics.newImage("hand-open.png", {dpiscale = 3.5})
Hand.sprite_closed = love.graphics.newImage("hand-closed.png", {dpiscale = 3.5})
Hand.max_speed = 10
Hand.z = 49
function Bolvis:new(pos, rotation)
physics.Object.new(self, pos, rotation, nil, 'dynamic')
self.shape = love.physics.newRectangleShape(90, 90)
self.fixture = love.physics.newFixture(self.body, self.shape)
self.fixture:setRestitution(0.2)
self.fixture:setDensity(20)
self.hand = Hand(self)
self.camera = Camera()
self.camera:follow(self)
end
function Bolvis:update()
self.body:setAngle(0)
physics.Object.update(self)
end
function Hand:new(bolvis)
game.Object.new(self)
self.offset = {100, -100}
self.bolvis = bolvis
self.sprite = self.sprite_open
end
function Hand:angle()
local x, y = unpack(self.pos)
local bx, by = unpack(self.bolvis.pos)
local ox, oy = x - bx, y - by
local a = math.atan(oy / math.abs(ox)) + math.pi / 2
if ox < 0 then a = -a end
return a
end
local function clamp(n, max, min)
return math.max(math.min(n, max), min)
end
function Hand:update()
self.rot = self:angle()
if not self.grab_joint then
self.pos[1] = self.bolvis.pos[1] + self.offset[1]
self.pos[2] = self.bolvis.pos[2] + self.offset[2]
else
self.pos = {self.grabbed.body:getWorldPoint(unpack(self.grab_pos))}
end
end
function Hand:present_offset()
local x, y = unpack(self.pos)
local bx, by = unpack(self.bolvis.pos)
return x - bx, y - by
end
function Hand:mousemoved(_, _, dx, dy)
dx = clamp(dx, self.max_speed, -self.max_speed)
dy = clamp(dy, self.max_speed, -self.max_speed)
self.offset[1] = clamp(self.offset[1] + dx, 1920 / 2, -1920 / 2)
self.offset[2] = clamp(self.offset[2] + dy, 1080 / 2, -1080 / 2)
if self.grab_joint then
local x, y = unpack(self.offset)
self.grab_joint:setLinearOffset(x + self.grab_pos[1], y + self.grab_pos[2])
end
end
function Hand:mousepressed(_, _, button)
if button == 1 then
self.sprite = self.sprite_closed
local grabbed
for o in pairs(game.all_objects) do
if o.fixture then
if o.fixture:testPoint(unpack(self.pos)) then
if o ~= self.bolvis then
self.grabbed = o
break
end
end
end
end
if self.grabbed then
local x1, y1 = unpack(self.bolvis.pos)
local x2, y2 = unpack(self.bolvis.pos)
self.grab_joint = love.physics.newMotorJoint(
self.bolvis.body, self.grabbed.body, 0.5, true)
self.grab_joint:setMaxForce(500)
self.grab_pos = {self.grabbed.body:getLocalPoint(unpack(self.pos))}
end
end
end
function Hand:mousereleased(_, _, button)
if button == 1 then
self.sprite = self.sprite_open
if self.grab_joint then
self.grabbed = nil
self.grab_joint:destroy()
self.grab_joint = nil
end
self.offset = {self:present_offset()}
end
end
function Hand:draw()
local x1, y1 = unpack(self.bolvis.pos)
local x2, y2 = unpack(self.pos)
love.graphics.setColor(1, 0.8, 0.9)
love.graphics.setLineWidth(15)
love.graphics.line(x1, y1, x2, y2)
love.graphics.setColor(1, 1, 1)
game.Object.draw(self)
end
return Bolvis
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