71 lines
1.9 KiB
Lua
71 lines
1.9 KiB
Lua
require 'gridpoint'
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---@enum Alignment
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Alignment = {
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Vertical = true,
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Horizontal = false
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}
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---@enum PortRotation
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PortRotation = {
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right = {false, false},
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down = {false, true},
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left = {true, false},
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up = {true, true}
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}
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---@class Port
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---@field position GridPoint
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---@field alignment Alignment
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---@field scanOffset number
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---@field color table
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Port = {
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position = GridPoint:new(0, 0),
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alignment = Alignment.Vertical,
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scanOffset = 0,
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color = { 0.8, 0.8, 0, 1 }
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}
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---@param position GridPoint
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---@param rotation PortRotation
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---@param color table
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---@return Port
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function Port:new(position, rotation, color)
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local port = {
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position = position or self.position,
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alignment = self.alignment,
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scanOffset = self.scanOffset,
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color = color or self.color
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}
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if rotation ~= nil then
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port.scanOffset = rotation[1] and 1 or 0
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port.alignment = rotation[2]
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end
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setmetatable(port, { __index = self })
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return port
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end
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function Port:rotateClockwise()
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local swap = self.position.x
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self.position.x = -self.position.y
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self.position.y = swap
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self.scanOffset = (self.scanOffset == 1) == self.alignment and 1 or 0
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self.alignment = not self.alignment
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end
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---@param offset GridPoint
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function Port:draw( offset )
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love.graphics.setColor(self.color)
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local drawPoint = GridPoint:new(
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offset.x + self.position.x + self.scanOffset,
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offset.y + self.position.y + self.scanOffset
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)
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local x, y = drawPoint:globalCoords()
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x = self.alignment and x - Config.cellSize / 2 or x - Config.portWidth / 2 - Config.cellSize / 2
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y = self.alignment and y - Config.portWidth / 2 - Config.cellSize / 2 or y - Config.cellSize / 2
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local w = self.alignment and Config.cellSize or Config.portWidth
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local h = self.alignment and Config.portWidth or Config.cellSize
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love.graphics.rectangle("fill", x, y, w, h)
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end
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