Custom logger and console, setup IO callbacks

src/game.zig

@@ -0,0 +1,110 @@
+const std = @import("std");
+
+const zglfw = @import("zglfw");
+const zgui = @import("zgui");
+
+const main = @import("main.zig");
+
+var show_console: bool = false;
+var show_demo_window: bool = false;
+
+pub fn init() void {}
+
+pub fn update(dt: f32) void {
+    _ = dt;
+
+    if (show_console) {
+        showConsole();
+    }
+
+    if (show_demo_window) {
+        zgui.showDemoWindow(&show_demo_window);
+    }
+}
+
+pub fn charCallback(
+    _: *zglfw.Window,
+    codepoint: u32,
+) callconv(.C) void {
+    _ = codepoint;
+}
+
+pub fn cursorPosCallback(
+    _: *zglfw.Window,
+    xpos: f64,
+    ypos: f64,
+) callconv(.C) void {
+    _ = xpos;
+    _ = ypos;
+}
+
+pub fn keyCallback(
+    _: *zglfw.Window,
+    key: zglfw.Key,
+    scancode: c_int,
+    action: zglfw.Action,
+    mods: zglfw.Mods,
+) callconv(.C) void {
+    _ = scancode;
+
+    const no_mods = @as(c_int, @bitCast(mods)) == 0;
+
+    if (key == .grave_accent and action == .press and no_mods) {
+        show_console = !show_console;
+    }
+
+    if (key == .F1 and action == .press and no_mods) {
+        show_demo_window = true;
+    }
+}
+
+pub fn mouseButtonCallback(
+    _: *zglfw.Window,
+    button: zglfw.MouseButton,
+    action: zglfw.Action,
+    mods: zglfw.Mods,
+) callconv(.C) void {
+    _ = button;
+    _ = action;
+    _ = mods;
+}
+
+pub fn scrollCallback(
+    _: *zglfw.Window,
+    xoffset: f64,
+    yoffset: f64,
+) callconv(.C) void {
+    _ = xoffset;
+    _ = yoffset;
+}
+
+pub fn deinit() void {}
+
+fn showConsole() void {
+    const display_size = zgui.io.getDisplaySize();
+    zgui.setNextWindowPos(.{
+        .x = 0,
+        .y = 0,
+    });
+    zgui.setNextWindowSize(.{
+        .w = display_size[0],
+        .h = main.min_window_height,
+        .cond = .once,
+    });
+    if (zgui.begin("Console", .{ .flags = .{
+        .no_title_bar = true,
+        .no_resize = true,
+        .no_move = true,
+        .no_collapse = true,
+    } })) {
+        for (main.logs.items) |log| {
+            zgui.textUnformattedColored(switch (log.level) {
+                .err => .{ 1, 0, 0, 1 },
+                .warn => .{ 1, 1, 0, 1 },
+                .info => .{ 1, 1, 1, 1 },
+                .debug => .{ 0.5, 0.5, 0.5, 1 },
+            }, log.message);
+        }
+    }
+    zgui.end();
+}