Backlog/projects/sampleGame/externGame/externGame.zig

pub export fn startup(p_allocator: *anyopaque, p_a: ?*anyopaque) bool {
    const allocator = core.modulePreamble(p_allocator, p_a) catch return false;
    _ = allocator;
    imgui.setupFromModule();
    platform.setupFromModule();
    rend.setupFromModule();
    backlog.physics.setupFromModule();
    // TODO backlog.setupFromModule

    start_module(core.startup_getArgs(p_a.?)) catch return false;

    return true;
}

pub export fn add(a: i32, b: i32) i32 {
    return a + b;
}

pub export fn subtract(a: i32, b: i32) i32 {
    return a + b;
}

var gAllocator: std.mem.Allocator = undefined;

fn start_module(args: core.ModuleLoaderArgs) !void {
    if (args.firstLoad) {
        _ = core.createObject(ExternGameObject, .{}) catch {};
        return;
    }

    core.logDisplay("externGame", "extern game reloaded ", .{});
    core.logDisplay("externGame", "hello mother fucker", .{});
    core.logDisplay("externGame", "accessing old object at {x} same object? {d}", .{ @intFromPtr(core.EngineObject(ExternGameObject).get()), @sizeOf(ExternGameObject) });

    // getting rid of dumb comment
    //log("gonna try something dumb- lets patch the vtable of that old object with my vtable's values", .{});
    const ref = core.getEngineObjectRef(ExternGameObject).?;
    ref.vtable.tick_func = ExternGameObject.NeonObjectTable.tick_func;

    core.PatchStruct(ExternGameObject, @ptrCast(@alignCast(ref.ptr)), ref.vtable.fieldList.?);
}

pub const ExternGameObject = struct {
    pub var NeonObjectTable = core.EngineObjectVTable.from(@This(), "game.ExternGameObject");
    pub const Slack = core.SlackStruct(@This(), 512);

    allocator: std.mem.Allocator = undefined,
    consoleWindow: imgui.utils.ConsoleWindow = undefined,
    tbMap: ?*bsp.maploader.TBMap = null,

    //lmao: bool = false,
    //lmao2: bool = true,
    a: bool = false,
    // lib: bool = false,
    //s: u32 = 0x42,

    pub fn loadMap2(self: *@This()) !void {
        if (self.tbMap) |tbMap| {
            core.engine_log("killing the map", .{});
            tbMap.destroy();
        }

        self.tbMap = try bsp.maploader.LoadTrenchbroomMap(self.allocator, .{
            .rotation = core.Rotation.eulerX(core.radians(-90.0)),
            .mapName = "bsp/testmap.map",
        });

        core.engine_log("map loaded", .{});
    }

    pub fn create(allocator: std.mem.Allocator) !*@This() {
        const self = try Slack.create(allocator);
        self.* = .{
            .allocator = allocator,
            .consoleWindow = imgui.utils.ConsoleWindow.init(allocator),
        };

        imgui.utils.addMenuFunc(self, "Input Stack Viewer", extras.inputDebugger.windowOpen);
        self.consoleWindow.setup();

        return self;
    }

    pub fn tick(self: *@This(), dt: f64) void {
        const rctx = rend.context();
        _ = dt;

        if (ig.begin("meh", null, .{})) {
            // if (ig.checkbox("move lights ", null)) {}

            ig.textFmt("info: - WASD to move, mouse to look,\n- Q and E to go up and down", .{}) catch return;
            ig.textFmt("- shift to slow down camera speed", .{}) catch return;
            ig.textFmt("- T to enable/disable mouse cursor", .{}) catch return;
            ig.textFmt("- f2 to route all inputs to the doom player", .{}) catch return;
            ig.textFmt("- movingLight checkbox makes the light stop moving with you", .{}) catch return;

            if (ig.smallButton("reload map")) {
                self.loadMap2() catch unreachable;
            }

            if (ig.smallButton("destroy map")) {
                if (self.tbMap) |tbMap| {
                    core.engine_log("killing the map", .{});
                    tbMap.destroy();
                    self.tbMap = null;
                }
            }
        }
        ig.end();

        //_ = self;
        // imgui.utils.structHexView(self);
        // imgui.utils.structHexView(rctx.activeCamera.?);
        // if (ig.begin("external game object", null, .{})) {
        //     ig.textf("sup", .{});

        //     _ = ig.sliderFloat("skybox strength", &rctx.skyboxSystem.brightnessFactor, 0, 10, null, .{});

        //     if (rctx.activeCamera) |camera| {
        //         const forwardVector = camera.forward();
        //         ig.textf("forward vector x:{d} y:{d} z:{d}", .{ forwardVector.x, forwardVector.y, forwardVector.z });
        //     }
        // }
        // ig.end();

        if (ig.begin("list of textures", null, .{})) {
            var iterator = rctx.textureList.map.iterator();
            while (iterator.next()) |i| {
                ig.textf("{s}", .{i.value_ptr.*.name.utf8()});
            }
        }
        ig.end();

        // if (ig.begin("list of meshes", null, .{})) {
        //     ig.textf("number of meshes: {d}", .{rctx.meshPool.installedMeshes.count()});
        //     var iterator = rctx.meshPool.installedMeshes.iterator();
        //     while (iterator.next()) |i| {
        //         ig.textf("{s}", .{i.value_ptr.*.name.utf8()});
        //     }
        // }
        // ig.end();
    }

    pub fn destroy(self: *@This()) void {
        self.allocator.destroy(Slack.fromPtr(self));
    }
};

pub export fn shutdown() void {}

const std = @import("std");
const backlog = @import("backlog");
const core = backlog.core;
const imgui = backlog.imgui;
const rend = backlog.rend;
const ig = imgui.api;
const platform = backlog.platform;
const extras = @import("gameExtras");
const bsp = @import("bsp");