From 8f76ba782669bc986a5e450e5a50ac84232c1323 Mon Sep 17 00:00:00 2001
From: Julien Dessaux
Date: Wed, 21 Sep 2022 23:19:45 +0200
Subject: Began rewriting the game as a wasm4 cartridge

---
 src/main.zig | 102 ++++++-----------------------------------------------------
 1 file changed, 9 insertions(+), 93 deletions(-)

(limited to 'src/main.zig')

diff --git a/src/main.zig b/src/main.zig
index 875b02c..29b7db5 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1,99 +1,15 @@
-const std = @import("std");
-const spoon = @import("spoon");
-
 const game = @import("game.zig");
+const std = @import("std");
+const utils = @import("utils.zig");
+const w4 = @import("wasm4.zig");
 
-var term: spoon.Term = undefined;
-var done: bool = false;
-
-//----- Game State -----------------------------------------------------------
-var gs: game.Game = undefined;
-
-//----- Main -----------------------------------------------------------------
-pub fn main() !void {
-    try term.init();
-    defer term.deinit();
-
-    std.os.sigaction(std.os.SIG.WINCH, &std.os.Sigaction{
-        .handler = .{ .handler = handleSigWinch },
-        .mask = std.os.empty_sigset,
-        .flags = 0,
-    }, null);
-
-    var fds: [1]std.os.pollfd = undefined;
-    fds[0] = .{
-        .fd = term.tty.handle,
-        .events = std.os.POLL.IN,
-        .revents = undefined,
-    };
-
-    try term.uncook(.{});
-    defer term.cook() catch {};
-
-    try term.fetchSize();
-    try term.setWindowTitle("Grenade Brothers", .{});
-
-    gs.reset(.left);
-    try renderAll();
-
-    var buf: [16]u8 = undefined;
-    while (!done) {
-        // TODO We need to measure how long it took before a key was hit so that we can adjust the timeout on the next loop
-        // otherwise we will get inconsistent ticks for movement steps
-        const timeout = try std.os.poll(&fds, @floatToInt(u64, 1000 / 60.0));
-
-        if (timeout > 0) { // if timeout if not 0 then some fds we are polling have events for us
-            const read = try term.readInput(&buf);
-            var it = spoon.inputParser(buf[0..read]);
-            while (it.next()) |in| {
-                if (in.eqlDescription("escape") or in.eqlDescription("q")) {
-                    done = true;
-                    break;
-                } else if (in.eqlDescription("arrow-left")) {
-                    gs.moveLeft(.right);
-                } else if (in.eqlDescription("arrow-right")) {
-                    gs.moveRight(.right);
-                } else if (in.eqlDescription("arrow-up")) {
-                    gs.moveJump(.right);
-                } else if (in.eqlDescription("a")) {
-                    gs.moveLeft(.left);
-                } else if (in.eqlDescription("d")) {
-                    gs.moveRight(.left);
-                } else if (in.eqlDescription("space")) {
-                    gs.moveJump(.left);
-                }
-            }
-        } else {
-            gs.step();
-        }
-        try renderAll();
-    }
-}
-
-fn renderAll() !void {
-    var rc = try term.getRenderContext();
-    defer rc.done() catch {};
-
-    try rc.clear();
-
-    if (term.width < 80 or term.width < 24) {
-        try rc.setAttribute(.{ .fg = .red, .bold = true });
-        try rc.writeAllWrapping("Terminal too small!");
-        return;
-    }
-
-    try gs.draw(&rc);
-}
+//----- Globals ---------------------------------------------------------------
+var Game: game.Game = undefined;
 
-fn handleSigWinch(_: c_int) callconv(.C) void {
-    term.fetchSize() catch {};
-    renderAll() catch {};
+export fn start() void {
+    Game.reset();
 }
 
-/// Custom panic handler, so that we can try to cook the terminal on a crash,
-/// as otherwise all messages will be mangled.
-pub fn panic(msg: []const u8, trace: ?*std.builtin.StackTrace) noreturn {
-    @setCold(true);
-    term.cook() catch {};
-    std.builtin.default_panic(msg, trace);
+export fn update() void {
+    Game.draw();
 }
-- 
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