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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| const std = @import("std"); | ||
| const cart = @import("cart-api"); | ||
|
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| export fn start() void {} | ||
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| var scene: enum { intro, game } = .intro; | ||
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| export fn update() void { | ||
| switch (scene) { | ||
| .intro => scene_intro(), | ||
| .game => scene_game(), | ||
| } | ||
| } | ||
|
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| const lines = &[_][]const u8{ | ||
| "Auguste Rame", | ||
| "~AOE4 Player", | ||
|
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| "", | ||
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| "aurame", | ||
| "SuperAuguste", | ||
|
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| "", | ||
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| "SYCL24", | ||
| "Press START", | ||
| }; | ||
| const spacing = (cart.font_height * 4 / 3); | ||
|
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| var ticks: u8 = 0; | ||
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| fn scene_intro() void { | ||
| set_background(); | ||
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| @memset(cart.neopixels, .{ | ||
| .r = 0, | ||
| .g = 0, | ||
| .b = 0, | ||
| }); | ||
|
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| if (ticks / 128 == 0) { | ||
| // Make the neopixel 24-bit color LEDs a nice Zig orange | ||
| @memset(cart.neopixels, .{ | ||
| .r = 247, | ||
| .g = 164, | ||
| .b = 29, | ||
| }); | ||
| } | ||
|
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| const y_start = (cart.screen_height - (cart.font_height + spacing * (lines.len - 1))) / 2; | ||
|
|
||
| // Write it out! | ||
| for (lines, 0..) |line, i| { | ||
| cart.text(.{ | ||
| .text_color = .{ .r = 31, .g = 63, .b = 31 }, | ||
| .str = line, | ||
| .x = @intCast((cart.screen_width - cart.font_width * line.len) / 2), | ||
| .y = @intCast(y_start + spacing * i), | ||
| }); | ||
| } | ||
|
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| if (ticks == 0) cart.red_led.* = !cart.red_led.*; | ||
| if (cart.controls.start) scene = .game; | ||
|
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| ticks +%= 4; | ||
| } | ||
|
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| const Player = enum(u8) { x = 0, o = 1, none = std.math.maxInt(u8) }; | ||
|
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| var selected_x: u8 = 0; | ||
| var selected_y: u8 = 0; | ||
| var control_cooldown: bool = false; | ||
| var turn: Player = .x; | ||
| var state: [3][3]Player = @bitCast([1]Player{.none} ** 9); | ||
|
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| fn scene_game() void { | ||
| set_background(); | ||
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| const title = "TIC-TAC-TOE"; | ||
| cart.text(.{ | ||
| .text_color = .{ .r = 31, .g = 63, .b = 31 }, | ||
| .str = title, | ||
| .x = @intCast((cart.screen_width - cart.font_width * title.len) / 2), | ||
| .y = 10, | ||
| }); | ||
|
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| const instructions = "D-PAD + SELECT"; | ||
| cart.text(.{ | ||
| .text_color = .{ .r = 31, .g = 63, .b = 31 }, | ||
| .str = instructions, | ||
| .x = @intCast((cart.screen_width - cart.font_width * instructions.len) / 2), | ||
| .y = cart.screen_height - cart.font_height - 10, | ||
| }); | ||
|
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||
| for (0..3) |y| { | ||
| for (0..3) |x| { | ||
| cart.rect(.{ | ||
| .stroke_color = .{ .r = 31, .g = 63, .b = 31 }, | ||
| .fill_color = if (x == selected_x and y == selected_y) .{ .r = 31 / 2, .g = 63 / 2, .b = 31 / 2 } else null, | ||
| .x = @intCast(cart.screen_width / 2 + x * 19 - 10 * 3), | ||
| .y = @intCast(cart.screen_height / 2 + y * 19 - 10 * 3), | ||
| .width = 20, | ||
| .height = 20, | ||
| }); | ||
|
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| cart.text(.{ | ||
| .text_color = .{ .r = 31, .g = 63, .b = 31 }, | ||
| .str = switch (state[y][x]) { | ||
| .x => "X", | ||
| .o => "O", | ||
| .none => "", | ||
| }, | ||
| .x = @intCast(cart.screen_width / 2 + x * 19 - 10 * 3 + 7), | ||
| .y = @intCast(cart.screen_height / 2 + y * 19 - 10 * 3 + 7), | ||
| }); | ||
| } | ||
| } | ||
|
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| if (!control_cooldown) { | ||
| if (cart.controls.left) selected_x -|= 1; | ||
| if (cart.controls.right and selected_x != 2) selected_x += 1; | ||
| if (cart.controls.up) selected_y -|= 1; | ||
| if (cart.controls.down and selected_y != 2) selected_y += 1; | ||
| if (cart.controls.select and state[selected_y][selected_x] == .none) { | ||
| state[selected_y][selected_x] = turn; | ||
| turn = switch (turn) { | ||
| .x => .o, | ||
| .o => .x, | ||
| else => unreachable, | ||
| }; | ||
|
|
||
| if (check_win()) { | ||
| turn = .x; | ||
| @memset(@as(*[9]Player, @ptrCast(&state)), .none); | ||
| scene = .intro; | ||
| selected_x = 0; | ||
| selected_y = 0; | ||
| } | ||
| } | ||
| } | ||
|
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| control_cooldown = false; | ||
| if (cart.controls.left or cart.controls.right or cart.controls.up or cart.controls.down or cart.controls.select) control_cooldown = true; | ||
| } | ||
|
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| fn set_background() void { | ||
| const ratio = (4095 - @as(f32, @floatFromInt(cart.light_level.*))) / 4095 * 0.2; | ||
|
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| @memset(cart.framebuffer, cart.DisplayColor{ | ||
| .r = @intFromFloat(ratio * 31), | ||
| .g = @intFromFloat(ratio * 63), | ||
| .b = @intFromFloat(ratio * 31), | ||
| }); | ||
| } | ||
|
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| fn check_win() bool { | ||
| for (0..3) |i| { | ||
| if (state[i][0] != .none and state[i][0] == state[i][1] and state[i][1] == state[i][2]) return true; | ||
| if (state[0][i] != .none and state[0][i] == state[1][i] and state[1][i] == state[2][i]) return true; | ||
| } | ||
|
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| return (state[0][0] != .none and state[0][0] == state[1][1] and state[1][1] == state[2][2]) or (state[0][2] != .none and state[0][2] == state[1][1] and state[1][1] == state[2][0]); | ||
| } |
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