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change games into an arcade

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This commit is contained in:
Squibid 2025-12-23 15:56:50 -05:00
parent f219f0c5ce
commit 70846f6283
Signed by: squibid
GPG key ID: BECE5684D3C4005D
7 changed files with 157 additions and 125 deletions
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4
build.zig
View file

@ -21,7 +21,7 @@ pub fn build(b: *std.Build) void {
.name = "games",
.linkage = .static,
.root_module = b.createModule(.{
.root_source_file = b.path("src/subcmds/games.zig"),
.root_source_file = b.path("src/subcmds/arcade/arcade.zig"),
.target = target,
.optimize = optimize,
.link_libc = true,
@ -48,7 +48,7 @@ pub fn build(b: *std.Build) void {
"-DVERSION=\"hi\"",
"-std=c23",
"-D_GNU_SOURCE",
"-MJ compile_commands.json",
"-MJcompile_commands.json",
}
});

2
include/subcmds.h
View file

@ -9,5 +9,5 @@ void timer_subcmd(void *, int argc, char *argv[]);
void stopwatch_subcmd(void *, int argc, char *argv[]);
void subcmds_dev(void *, int argc, char *argv[]);
void motd_subcmd(void *, int argc, char *argv[]);
void games_subcmd(void *, int argc, char *argv[]);
void arcade_subcmd(void *, int argc, char *argv[]);
void subcmds_subcmd(void *, int argc, char *argv[]);

2
src/main.c
View file

@ -100,7 +100,7 @@ main(int argc, char *argv[])
register_subcmd("stopwatch", stopwatch_subcmd, NULL);
register_subcmd("subcmds", subcmds_subcmd, NULL);
register_subcmd("dev", subcmds_dev, NULL);
register_subcmd("games", games_subcmd, NULL);
register_subcmd("arcade", arcade_subcmd, NULL);
/* if the user didn't specify a config path */
if (!config_path) {

5
src/subcmds/arcade/arcade.txt Normal file
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@ -0,0 +1,5 @@
@@@@@@ @@@@@@@ @@@@@@@ @@@@@@ @@@@@@@ @@@@@@@@
@@! @@@ @@! @@@ !@@ @@! @@@ @@! @@@ @@!
@!@!@!@! @!@!!@! !@! @!@!@!@! @!@ !@! @!!!:!
!!: !!! !!: :!! :!! !!: !!! !!: !!! !!:
: : : : : : :: :: : : : : :: : : : :: :::

13
src/subcmds/arcade/arcade.zig Normal file
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@ -0,0 +1,13 @@
const std = @import("std");
const Conway = @import("conway.zig");
pub export fn arcade_subcmd(_: *anyopaque, argc: c_int, argv: [*c]u8) callconv(.c) void {
_ = argc;
_ = argv;
// const title = @embedFile("arcade.txt");
var buf: [4096]u8 = undefined;
const writer = std.fs.File.stdout().writer(&buf);
Conway.play(40, 40, @constCast(&writer.interface)) catch unreachable;
}

135
src/subcmds/arcade/conway.zig Normal file
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@ -0,0 +1,135 @@
// TODO: make interactive
const Conway = @This();
const std = @import("std");
const gpa = std.heap.page_allocator;
generation: u64 = 0,
width: u64,
height: u64,
world: [][]*Cell,
writer: *std.io.Writer,
const Cell = struct {
/// Technically we don't need to store any neighbors and we could just
/// check using the world, but that makes the logic far more terse.
///
/// storage of neighbors
/// ? 0 ?
/// 1 x 2
/// ? 3 ?
/// instead of storing all 8 neighbors I've decided to contact them
/// through our other neighbors.
neighbors: [4]?*Cell = .{ null, null, null, null },
/// the state on the current generation
alive: bool = false,
/// the state on the next generation
will_live: bool = false,
};
pub fn init(width: u64, height: u64, writer: *std.Io.Writer) !Conway {
var self: Conway = .{
.width = width,
.height = height,
.world = undefined,
.writer = writer,
};
// create the world and the cells
self.world = try gpa.alloc([]*Cell, width);
for (self.world, 0..) |col, i| {
self.world[i] = try gpa.alloc(*Cell, height);
for (col, 0..) |_, j| {
if (j >= height) break;
self.world[i][j] = try gpa.create(Cell);
}
}
// initialize all the cell properties
for (self.world, 0..) |col, i| for (col, 0..) |cell, j| {
// the top row has nothing above it
cell.neighbors[0] = if (j == 0) null else self.world[i][j - 1];
// the left column has nothing on the left
cell.neighbors[1] = if (i == 0) null else self.world[i - 1][j];
// the right row has nothing on the right
cell.neighbors[2] = if (i == width - 1) null else self.world[i + 1][j];
// the bottom row has nothing below it
cell.neighbors[3] = if (j == height - 1) null else self.world[i][j + 1];
cell.alive = false;
};
return self;
}
pub fn deinit(self: *Conway) void {
for (self.world) |col| {
for (col) |cell| gpa.destroy(cell);
gpa.free(col);
}
gpa.free(self.world);
}
pub fn step(self: *Conway) void {
for (self.world) |col| for (col) |cell| {
var alive_neighbors: u4 = 0;
// count the neighbors
for (cell.neighbors, 0..) |n, i| {
if (n == null) continue;
if (i == 0 or i == 3) {
if (n.?.neighbors[1]) |nn| if (nn.alive) {
alive_neighbors += 1;
};
if (n.?.neighbors[2]) |nn| if (nn.alive) {
alive_neighbors += 1;
};
}
if (n.?.alive) alive_neighbors += 1;
}
// rules
if (cell.alive) {
cell.will_live = switch (alive_neighbors) {
2, 3 => true,
else => false
};
} else if (alive_neighbors == 3) cell.will_live = true;
};
// the living state must be applied after all the cells have been checked
for (self.world) |col| for (col) |cell| {
cell.alive = cell.will_live;
};
}
pub fn print(self: *Conway) !void {
for (self.world) |col| {
for (col) |cell| {
try self.writer.print("{s}", .{if (cell.alive) "x" else " "});
}
_ = try self.writer.write("\n");
}
try self.writer.flush();
}
pub fn play(width: u64, height: u64, writer: *std.Io.Writer) !void {
var con = try Conway.init(width, height, writer);
con.world[4][2].alive = true;
con.world[4][3].alive = true;
con.world[4][4].alive = true;
con.world[4][5].alive = true;
con.world[4][6].alive = true;
con.world[4][7].alive = true;
con.world[5][2].alive = true;
con.world[5][3].alive = true;
con.world[5][4].alive = true;
con.world[5][5].alive = true;
con.world[5][6].alive = true;
while (true) : (con.step()) {
try con.print();
std.posix.nanosleep(0, 250000000);
try con.writer.print("\x1B[{}A", .{con.height});
}
}

121
src/subcmds/games.zig
View file

@ -1,121 +0,0 @@
const std = @import("std");
const gpa = std.heap.page_allocator;
const Conway = struct {
generation: u64 = 0,
width: u64,
height: u64,
world: [][]*Cell,
const Cell = struct {
/// storage of neighbors
/// ? 0 ?
/// 1 x 2
/// ? 3 ?
/// instead of storing all 8 neighbors I've decided to contact them
/// through our other neighbors.
neighbors: [4]?*Cell = .{ null, null, null, null },
/// the state on the current generation
alive: bool = false,
/// the state on the next generation
will_live: bool = false,
};
pub fn init(width: u64, height: u64) !Conway {
var self: Conway = .{
.width = width,
.height = height,
.world = undefined,
};
// create the world and the cells
self.world = try gpa.alloc([]*Cell, width);
for (self.world, 0..) |col, i| {
self.world[i] = try gpa.alloc(*Cell, height);
for (col, 0..) |_, j| {
if (j >= height) break;
self.world[i][j] = try gpa.create(Cell);
}
}
// initialize all the cell properties
for (self.world, 0..) |col, i| for (col, 0..) |cell, j| {
// the top row has nothing above it
cell.neighbors[0] = if (j == 0) null else self.world[i][j - 1];
// the left column has nothing on the left
cell.neighbors[1] = if (i == 0) null else self.world[i - 1][j];
// the right row has nothing on the right
cell.neighbors[2] = if (i == width - 1) null else self.world[i + 1][j];
// the bottom row has nothing below it
cell.neighbors[3] = if (j == height - 1) null else self.world[i][j + 1];
cell.alive = false;
};
return self;
}
pub fn step(self: *Conway) void {
for (self.world) |col| for (col) |cell| {
var alive_neighbors: u4 = 0;
// count the neighbors
for (cell.neighbors, 0..) |n, i| {
if (n == null) continue;
if (i == 0 or i == 3) {
if (n.?.neighbors[1]) |nn| if (nn.alive) {
alive_neighbors += 1;
};
if (n.?.neighbors[2]) |nn| if (nn.alive) {
alive_neighbors += 1;
};
}
if (n.?.alive) alive_neighbors += 1;
}
// rules
if (cell.alive) {
cell.will_live = switch (alive_neighbors) {
2, 3 => true,
else => false
};
} else if (alive_neighbors == 3) cell.will_live = true;
};
for (self.world) |col| for (col) |cell| {
cell.alive = cell.will_live;
};
}
pub fn print(self: *Conway) void {
for (self.world) |col| {
for (col) |cell| {
std.debug.print("{s}", .{if (cell.alive) "x" else " "});
}
std.debug.print("\n", .{});
}
}
};
pub export fn games_subcmd(_: *anyopaque, argc: c_int, argv: [*c]u8) callconv(.c) void {
_ = argc;
_ = argv;
var con = Conway.init(40, 40) catch unreachable;
con.world[4][2].alive = true;
con.world[4][3].alive = true;
con.world[4][4].alive = true;
con.world[4][5].alive = true;
con.world[4][6].alive = true;
con.world[4][7].alive = true;
con.world[5][2].alive = true;
con.world[5][3].alive = true;
con.world[5][4].alive = true;
con.world[5][5].alive = true;
con.world[5][6].alive = true;
while (true) : (con.step()) {
con.print();
std.posix.nanosleep(0, 250000000);
std.debug.print("\x1B[{}A", .{con.height});
}
}