mirror of https://github.com/fairyglade/ly.git
82 lines
2.1 KiB
Zig
82 lines
2.1 KiB
Zig
const std = @import("std");
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const math = std.math;
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const Cell = @import("../tui/Cell.zig");
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const TerminalBuffer = @import("../tui/TerminalBuffer.zig");
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const Widget = @import("../tui/Widget.zig");
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const Cascade = @This();
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buffer: *TerminalBuffer,
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current_auth_fails: *usize,
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max_auth_fails: usize,
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pub fn init(
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buffer: *TerminalBuffer,
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current_auth_fails: *usize,
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max_auth_fails: usize,
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) Cascade {
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return .{
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.buffer = buffer,
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.current_auth_fails = current_auth_fails,
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.max_auth_fails = max_auth_fails,
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};
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}
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pub fn widget(self: *Cascade) Widget {
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return Widget.init(
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self,
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null,
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null,
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draw,
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null,
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null,
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);
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}
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fn draw(self: *Cascade) void {
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while (self.current_auth_fails.* >= self.max_auth_fails) {
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std.Thread.sleep(std.time.ns_per_ms * 10);
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var changed = false;
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var y = self.buffer.height - 2;
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while (y > 0) : (y -= 1) {
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for (0..self.buffer.width) |x| {
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const cell = TerminalBuffer.getCell(x, y - 1);
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const cell_under = TerminalBuffer.getCell(x, y);
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// This shouldn't happen under normal circumstances, but because
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// this is a *secret* animation, there's no need to care that much
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if (cell == null or cell_under == null) continue;
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const char: u8 = @truncate(cell.?.ch);
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if (std.ascii.isWhitespace(char)) continue;
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const char_under: u8 = @truncate(cell_under.?.ch);
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if (!std.ascii.isWhitespace(char_under)) continue;
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changed = true;
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if ((self.buffer.random.int(u16) % 10) > 7) continue;
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cell.?.put(x, y);
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var space = Cell.init(
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' ',
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cell_under.?.fg,
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cell_under.?.bg,
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);
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space.put(x, y - 1);
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}
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}
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if (!changed) {
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std.Thread.sleep(std.time.ns_per_s * 7);
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self.current_auth_fails.* = 0;
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}
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TerminalBuffer.presentBuffer();
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}
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}
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