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'use strict'
function program_W (x, y) {
Program_Default.call(this, x, y)
this.name = 'warp'
this.glyph = 'w'
this.ports = [{ x: 0, y: -1 }, { x: 0, y: 1, output: true }, { x: 0, y: 0, bang: true }]
this.operation = function () {
const input = this.up()
const active = this.bang() || this.neighbors('1').length > 0
if (input && active) {
const warp = this.find_warp(this)
if (!warp) { return }
pico.program.add(warp.x, warp.y + 1, input.glyph)
pico.program.remove(this.x, this.y - 1)
pico.program.lock(warp.x, warp.y + 1)
}
}
this.find_warps = function (origin) {
const a = []
let y = 0
while (y < pico.program.h) {
let x = 0
while (x < pico.program.w) {
if (pico.program.glyph_at(x, y) == 'w') {
a.push({ x: x, y: y })
}
x += 1
}
y += 1
}
return a
}
this.find_warp = function (origin) {
const warps = this.find_warps(origin)
if (warps.length < 2) { return }
let warp_id = -1
for (const id in warps) {
const warp = warps[id]
if (warp.x == this.x && warp.y == this.y) {
warp_id = id
}
}
return warps[(warp_id + 1) % warps.length]
}
}
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