1130 lines
39 KiB
Zig
1130 lines
39 KiB
Zig
const Game = @This();
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const std = @import("std");
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const c = @import("const.zig");
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const ctx = @import("AppContext.zig");
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const glfw = @import("zglfw");
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const math = @import("math.zig");
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const media = @import("media");
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const shaders = @import("shaders.zig");
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const vk = @import("vulkan");
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const vm = @import("vecmath");
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const worldgen = @import("worldgen.zig");
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const Blocks = @import("assets/Blocks.zig");
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const Chunk = @import("Chunk.zig");
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const Chunks = @import("Chunks.zig");
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const CommandBuffer = @import("engine/CommandBuffer.zig");
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const Engine = @import("engine/Engine.zig");
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const Fonts = @import("engine/Fonts.zig");
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const Iterator2 = math.Iterator2;
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const Materials = @import("engine/Materials.zig");
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const Player = @import("Player.zig");
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const Skybox = @import("engine/Skybox.zig");
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const Swapchain = @import("engine/Swapchain.zig");
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const Texture = @import("engine/Texture.zig");
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const Textures = @import("engine/Textures.zig");
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global_descriptor_set_layout: vk.DescriptorSetLayout,
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per_batch_descriptor_set_layout: vk.DescriptorSetLayout,
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descriptor_pool: vk.DescriptorPool,
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global_descriptor_set: vk.DescriptorSet,
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pipeline_layout: vk.PipelineLayout,
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pipeline: vk.Pipeline,
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vertex_buffer: shaders.VertexBuffer,
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index_buffer: shaders.IndexBuffer,
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global_uniforms: shaders.GlobalUniformsBuffer,
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global_uniforms_staging_buffer: shaders.GlobalUniformsBuffer,
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global_uniforms_staging_ptr: *shaders.GlobalUniforms,
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global_uniforms_transfer_semaphores: []vk.Semaphore,
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point_lights: shaders.PointLightBuffer,
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directional_lights: shaders.DirectionalLightBuffer,
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sampler: vk.Sampler,
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deferred_command_buffers: std.ArrayList(CommandBuffer),
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blocks: Blocks,
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chunks: Chunks,
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skybox: Skybox,
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player: Player,
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font: Fonts.Id,
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const max_point_lights = 1024;
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const max_directional_lights = 4;
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const chunk_descriptor_pool = 1024;
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const camera_near_plane = 0.1;
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const point_lights_data = [_]shaders.PointLight{};
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const directional_lights_data = [_]shaders.DirectionalLight{
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.{
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.directionWS = .unit_nz,
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.color = .init(0.3, 0.3, 0.3),
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},
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};
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pub fn init() !Game {
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const allocator_general = ctx.allocator_general;
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const allocator_frame = ctx.allocator_frame;
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const engine = ctx.engine;
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const swapchain = ctx.swapchain;
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const textures = ctx.textures;
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const materials = ctx.materials;
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const fonts = ctx.fonts;
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const gui = ctx.gui;
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var blocks = try Blocks.init();
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errdefer blocks.deinit();
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// JANK HACK When this line is removed, capturing a frame with RenderDoc
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// will crash the game with segfault reading address 0x140 (presumably
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// within librenderdoc.so).
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blocks.loadAll();
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const sampler = try engine.createSampler(.{
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.mag_filter = .linear,
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.min_filter = .linear,
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.mipmap_mode = .linear,
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.address_mode_u = .repeat,
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.address_mode_v = .repeat,
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.address_mode_w = .repeat,
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.mip_lod_bias = 0,
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.anisotropy_enable = .false,
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.max_anisotropy = 0,
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.compare_enable = .false,
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.compare_op = .always,
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.min_lod = 0,
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.max_lod = vk.LOD_CLAMP_NONE,
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.border_color = .float_transparent_black,
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.unnormalized_coordinates = .false,
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});
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errdefer engine.destroySampler(sampler);
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const global_descriptor_set_layout = try engine.createDescriptorSetLayout(.{
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.bindings = &.{
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.{
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.binding = 0,
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.descriptor_type = .uniform_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 1,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 2,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 3,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 4,
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.descriptor_type = .sampler,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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.immutable_samplers = &.{sampler},
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},
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.{
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.binding = 5,
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.descriptor_type = .sampled_image,
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.descriptor_count = Textures.max_textures,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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},
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});
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errdefer engine.destroyDescriptorSetLayout(global_descriptor_set_layout);
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engine.setObjectName(global_descriptor_set_layout, "DSL Global", .{});
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const per_batch_descriptor_set_layout = try engine.createDescriptorSetLayout(.{
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.bindings = &.{
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.{
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.binding = 0,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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},
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});
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errdefer engine.destroyDescriptorSetLayout(per_batch_descriptor_set_layout);
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engine.setObjectName(per_batch_descriptor_set_layout, "DSL PerBatch", .{});
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const pipeline_layout = try engine.createPipelineLayout(.{
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.set_layouts = &.{
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global_descriptor_set_layout,
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per_batch_descriptor_set_layout,
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},
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});
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errdefer engine.destroyPipelineLayout(pipeline_layout);
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engine.setObjectName(pipeline_layout, "PL Main", .{});
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const shader = try engine.createShaderModule(.{ .code = &shaders.main_spv });
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defer engine.destroyShaderModule(shader);
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engine.setObjectName(shader, "SM main", .{});
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var vertex_buffer = try shaders.VertexBuffer.init(.{
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.usage = .vertex,
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.target_queue = .graphics,
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.capacity = 4,
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.name = "QuadVB",
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});
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errdefer vertex_buffer.deinit();
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try vertex_buffer.writeSlice(&.{
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.init(
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.init(0, 0, 0),
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.init(0, 1),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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.init(
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.init(1, 0, 0),
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.init(1, 1),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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.init(
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.init(0, 1, 0),
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.init(0, 0),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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.init(
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.init(1, 1, 0),
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.init(1, 0),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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});
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var index_buffer = try shaders.IndexBuffer.init(.{
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.usage = .index,
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.target_queue = .graphics,
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.capacity = 6,
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.name = "QuadIB",
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});
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errdefer index_buffer.deinit();
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try index_buffer.writeSlice(&.{ 0, 1, 2, 2, 1, 3 });
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var global_uniforms = try shaders.GlobalUniformsBuffer.init(.{
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.usage = .uniform,
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.target_queue = .graphics,
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.name = "GlobalUniforms",
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});
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errdefer global_uniforms.deinit();
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var global_uniforms_staging_buffer = try shaders.GlobalUniformsBuffer.init(.{
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.usage = .staging,
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.target_queue = .graphics,
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.mappable = true,
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.name = "GlobalUniforms Staging",
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});
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errdefer global_uniforms_staging_buffer.deinit();
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const global_uniforms_staging_ptr = try global_uniforms_staging_buffer.map();
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errdefer global_uniforms_staging_buffer.unmap();
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const global_uniforms_transfer_semaphores = blk: {
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var semaphores: std.ArrayList(vk.Semaphore) = try .initCapacity(allocator_general, swapchain.swapchain_images.len);
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errdefer semaphores.deinit(allocator_general);
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errdefer for (semaphores.items) |x| engine.destroySemaphore(x);
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for (0..swapchain.swapchain_images.len) |i| {
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const semaphore = try engine.createSemaphore();
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engine.setObjectName(semaphore, "S Transfer[{d}]", .{i});
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semaphores.appendAssumeCapacity(semaphore);
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}
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break :blk try semaphores.toOwnedSlice(allocator_general);
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};
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errdefer {
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for (global_uniforms_transfer_semaphores) |semaphore| {
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engine.destroySemaphore(semaphore);
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}
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allocator_general.free(global_uniforms_transfer_semaphores);
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}
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var point_lights = try shaders.PointLightBuffer.init(.{
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.usage = .storage,
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.target_queue = .graphics,
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.capacity = max_point_lights,
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.name = "PointLights",
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});
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errdefer point_lights.deinit();
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var directional_lights = try shaders.DirectionalLightBuffer.init(.{
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.usage = .storage,
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.target_queue = .graphics,
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.capacity = max_directional_lights,
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.name = "DirectionalLights",
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});
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errdefer directional_lights.deinit();
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const pipeline = try engine.createGraphicsPipeline(.{
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.stages = &.{
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.{
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.stage = .{ .vertex_bit = true },
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.module = shader,
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.name = "vertexMain",
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},
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.{
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.stage = .{ .fragment_bit = true },
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.module = shader,
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.name = "fragmentMain",
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},
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},
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.vertex_input_state = .{
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.vertex_binding_descriptions = &.{
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.{
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.binding = 0,
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.stride = @sizeOf(shaders.Vertex),
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.input_rate = .vertex,
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},
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},
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.vertex_attribute_descriptions = &.{
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.{
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.location = 0,
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.binding = 0,
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.format = .r32g32b32_sfloat,
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.offset = @offsetOf(shaders.Vertex, "positionOS"),
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},
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.{
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.location = 1,
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.binding = 0,
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.format = .r16g16_unorm,
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.offset = @offsetOf(shaders.Vertex, "texCoord"),
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},
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.{
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.location = 2,
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.binding = 0,
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.format = .r8g8b8_snorm,
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.offset = @offsetOf(shaders.Vertex, "normalOS"),
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},
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.{
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.location = 3,
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.binding = 0,
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.format = .r8g8b8a8_snorm,
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.offset = @offsetOf(shaders.Vertex, "tangentOS"),
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},
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},
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},
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.input_assembly_state = .{
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.topology = .triangle_list,
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.primitive_restart_enable = .false,
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},
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.viewport_state = .{
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.viewports = &.{undefined}, // dynamic
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.scissors = &.{undefined}, // dynamic
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},
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.rasterization_state = .{
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.depth_clamp_enable = .false,
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.rasterizer_discard_enable = .false,
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.polygon_mode = .fill,
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.cull_mode = .{ .back_bit = true },
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.front_face = .counter_clockwise,
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.depth_bias_enable = .false,
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.depth_bias_constant_factor = 0,
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.depth_bias_clamp = 0,
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.depth_bias_slope_factor = 0,
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.line_width = 1,
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},
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.multisample_state = .{
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.rasterization_samples = .{ .@"1_bit" = true },
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.sample_shading_enable = .false,
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.min_sample_shading = 1,
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.alpha_to_coverage_enable = .false,
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.alpha_to_one_enable = .false,
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},
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.depth_stencil_state = .{
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.depth_test_enable = .true,
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.depth_write_enable = .true,
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.depth_compare_op = .greater,
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.depth_bounds_test_enable = .false,
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||
.stencil_test_enable = .false,
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.front = .{
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.fail_op = .keep,
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.pass_op = .keep,
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.depth_fail_op = .keep,
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.compare_op = .never,
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.compare_mask = 0,
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.write_mask = 0,
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.reference = 0,
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},
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.back = .{
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.fail_op = .keep,
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.pass_op = .keep,
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.depth_fail_op = .keep,
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.compare_op = .never,
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.compare_mask = 0,
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||
.write_mask = 0,
|
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.reference = 0,
|
||
},
|
||
.min_depth_bounds = 0,
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.max_depth_bounds = 1,
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},
|
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.color_blend_state = .{
|
||
.logic_op_enable = .false,
|
||
.logic_op = .copy,
|
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.attachments = &.{
|
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.{
|
||
.blend_enable = .false,
|
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.src_color_blend_factor = .one,
|
||
.dst_color_blend_factor = .zero,
|
||
.color_blend_op = .add,
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||
.src_alpha_blend_factor = .one,
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||
.dst_alpha_blend_factor = .zero,
|
||
.alpha_blend_op = .add,
|
||
.color_write_mask = .{
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||
.r_bit = true,
|
||
.g_bit = true,
|
||
.b_bit = true,
|
||
.a_bit = true,
|
||
},
|
||
},
|
||
},
|
||
.blend_constants = .{ 0, 0, 0, 0 },
|
||
},
|
||
.dynamic_state = .{
|
||
.dynamic_states = &.{ .viewport, .scissor },
|
||
},
|
||
.layout = pipeline_layout,
|
||
.view_mask = 0,
|
||
.color_attachment_formats = &.{swapchain.params.surface_format.format},
|
||
.depth_attachment_format = Texture.Usage.depth.vkFormat(),
|
||
.stencil_attachment_format = .undefined,
|
||
});
|
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errdefer engine.destroyPipeline(pipeline);
|
||
engine.setObjectName(pipeline, "P Main", .{});
|
||
|
||
const descriptor_pool = try engine.createDescriptorPool(.{
|
||
.flags = .{
|
||
.free_descriptor_set_bit = true,
|
||
},
|
||
.max_sets = 1 + chunk_descriptor_pool,
|
||
.pool_sizes = &.{
|
||
.{
|
||
.type = .sampler,
|
||
.descriptor_count = 1,
|
||
},
|
||
.{
|
||
.type = .sampled_image,
|
||
.descriptor_count = Textures.max_textures,
|
||
},
|
||
.{
|
||
.type = .uniform_buffer,
|
||
.descriptor_count = 1,
|
||
},
|
||
.{
|
||
.type = .storage_buffer,
|
||
.descriptor_count = 3 + chunk_descriptor_pool,
|
||
},
|
||
},
|
||
});
|
||
errdefer engine.destroyDescriptorPool(descriptor_pool);
|
||
engine.setObjectName(descriptor_pool, "DP Main", .{});
|
||
|
||
const global_descriptor_set = try engine.allocateDescriptorSet(.{
|
||
.descriptor_pool = descriptor_pool,
|
||
.set_layout = global_descriptor_set_layout,
|
||
});
|
||
engine.setObjectName(global_descriptor_set, "DS Global", .{});
|
||
|
||
const block_grass = try blocks.getOrLoad("Grass.json");
|
||
const block_dirt = try blocks.getOrLoad("Dirt.json");
|
||
const block_stone = try blocks.getOrLoad("Stone.json");
|
||
const block_bedrock = try blocks.getOrLoad("Bedrock.json");
|
||
|
||
const font_id = try fonts.load("FiraMono-Regular.ttf", .{
|
||
.codepoint_ranges = &.{
|
||
.{ .start = 32, .end = 127 },
|
||
},
|
||
.name = "Fira Mono",
|
||
});
|
||
|
||
// VOLATILE Load all assets before this point
|
||
|
||
const descriptor_images = try allocator_frame.alloc(vk.DescriptorImageInfo, textures.array.items.len);
|
||
for (textures.array.items, descriptor_images) |texture, *info| {
|
||
info.* = .{
|
||
.sampler = .null_handle,
|
||
.image_view = texture.image_view,
|
||
.image_layout = .shader_read_only_optimal,
|
||
};
|
||
}
|
||
|
||
try engine.updateDescriptorSets(.{
|
||
.writes = &.{
|
||
.{
|
||
.dst_set = global_descriptor_set,
|
||
.dst_binding = 0,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .uniform_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = global_uniforms.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = global_descriptor_set,
|
||
.dst_binding = 1,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .storage_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = point_lights.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = global_descriptor_set,
|
||
.dst_binding = 2,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .storage_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = directional_lights.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = global_descriptor_set,
|
||
.dst_binding = 3,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .storage_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = materials.material_buffer.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = global_descriptor_set,
|
||
.dst_binding = 5,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .sampled_image,
|
||
.descriptor_infos = .{ .image = descriptor_images },
|
||
},
|
||
},
|
||
});
|
||
|
||
var chunks: std.AutoHashMapUnmanaged([3]i16, Chunk) = .empty;
|
||
errdefer {
|
||
var it = chunks.valueIterator();
|
||
while (it.next()) |chunk| {
|
||
chunk.deinit(descriptor_pool);
|
||
}
|
||
chunks.deinit(allocator_general);
|
||
}
|
||
|
||
const world_seed = engine.random.int(u64);
|
||
std.log.info("Using world seed 0x{x:0<16}", .{world_seed});
|
||
var it = Iterator2(i16).init(.{
|
||
.min = .{ -8, -8 },
|
||
.max = .{ 8, 8 },
|
||
});
|
||
while (it.next()) |chunk_coords2| {
|
||
const chunk_coords3 = chunk_coords2 ++ [_]i16{0};
|
||
|
||
const origin = vm.Vector3.init(
|
||
@floatFromInt(chunk_coords3[0]),
|
||
@floatFromInt(chunk_coords3[1]),
|
||
@floatFromInt(chunk_coords3[2]),
|
||
).mulScalar(16);
|
||
|
||
try chunks.ensureUnusedCapacity(allocator_general, 1);
|
||
chunks.putAssumeCapacityNoClobber(
|
||
chunk_coords3,
|
||
try Chunk.init(.{
|
||
.origin = origin,
|
||
.descriptor_pool = descriptor_pool,
|
||
.per_batch_descriptor_set_layout = per_batch_descriptor_set_layout,
|
||
}),
|
||
);
|
||
const chunk = chunks.getPtr(chunk_coords3).?;
|
||
|
||
var y: usize = 0;
|
||
while (y < 16) : (y += 1) {
|
||
const fpos0 = vm.Vector2x8.init(
|
||
.{ 0, 1, 2, 3, 4, 5, 6, 7 },
|
||
@splat(@floatFromInt(y)),
|
||
).add(.splat(origin.dropZ()));
|
||
const fpos1 = vm.Vector2x8.init(
|
||
.{ 8, 9, 10, 11, 12, 13, 14, 15 },
|
||
@splat(@floatFromInt(y)),
|
||
).add(.splat(origin.dropZ()));
|
||
|
||
const iheight0 = worldgen.heightIv(world_seed, fpos0);
|
||
const iheight1 = worldgen.heightIv(world_seed, fpos1);
|
||
|
||
const iheightv: [16]i32 = @as([8]i32, iheight0) ++ @as([8]i32, iheight1);
|
||
var x: usize = 0;
|
||
while (x < 16) : (x += 1) {
|
||
chunk.blocks[0][y][x] = block_bedrock;
|
||
const iheight = iheightv[x];
|
||
var i: i32 = 0;
|
||
while (i < iheight) : (i += 1) {
|
||
const iz = i + 1;
|
||
const block = if (i + 1 == iheight)
|
||
block_grass
|
||
else if (i + 4 >= iheight)
|
||
block_dirt
|
||
else
|
||
block_stone;
|
||
chunk.blocks[@intCast(iz)][y][x] = block;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
const player_position_vx = vm.Vector3Int.init(0, 0, worldgen.heightI(world_seed, .zero) + 1);
|
||
const player_position_sv = player_position_vx
|
||
.mulScalar(c.sv_per_vx)
|
||
.add(.init(c.sv_per_vx / 2, c.sv_per_vx / 2, 0));
|
||
|
||
var chunk_it = chunks.iterator();
|
||
while (chunk_it.next()) |entry| {
|
||
const x, const y, const z = entry.key_ptr.*;
|
||
const chunk = entry.value_ptr;
|
||
try chunk.refresh(&blocks, .{
|
||
.positive_x = chunks.getPtr(.{ x + 1, y, z }),
|
||
.negative_x = chunks.getPtr(.{ x - 1, y, z }),
|
||
.positive_y = chunks.getPtr(.{ x, y + 1, z }),
|
||
.negative_y = chunks.getPtr(.{ x, y - 1, z }),
|
||
.positive_z = chunks.getPtr(.{ x, y, z + 1 }),
|
||
.negative_z = chunks.getPtr(.{ x, y, z - 1 }),
|
||
});
|
||
}
|
||
|
||
try point_lights.writeSlice(&point_lights_data);
|
||
try directional_lights.writeSlice(&directional_lights_data);
|
||
|
||
var skybox = try Skybox.load("skybox.hdr", 512, global_uniforms.buffer);
|
||
errdefer skybox.deinit();
|
||
|
||
const font = &fonts.array.items[@intFromEnum(font_id)];
|
||
|
||
// TODO This coupling is not elegant - the game must provide the GUI with
|
||
// uniform buffer for globals. Maybe GUI should just use their own global
|
||
// uniform buffer not for any other reason than decoupling. After all, GUI
|
||
// only needs a single 3×2 matrix and does not need to depend on game's
|
||
// rendering pipeline.
|
||
try engine.updateDescriptorSets(.{
|
||
.writes = &.{
|
||
.{
|
||
.dst_set = gui.box_descriptor_set,
|
||
.dst_binding = 0,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .uniform_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = global_uniforms.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = gui.text_descriptor_set,
|
||
.dst_binding = 0,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .uniform_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = global_uniforms.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = gui.text_descriptor_set,
|
||
.dst_binding = 2,
|
||
.dst_array_element = @intFromEnum(font_id),
|
||
.descriptor_type = .storage_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = font.glyph_data.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = gui.text_descriptor_set,
|
||
.dst_binding = 3,
|
||
.dst_array_element = @intFromEnum(font_id),
|
||
.descriptor_type = .storage_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = font.control_points.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = gui.text_descriptor_set,
|
||
.dst_binding = 4,
|
||
.dst_array_element = @intFromEnum(font_id),
|
||
.descriptor_type = .storage_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = font.band_data.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = gui.image_descriptor_set,
|
||
.dst_binding = 0,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .uniform_buffer,
|
||
.descriptor_infos = .{
|
||
.buffer = &.{
|
||
.{
|
||
.buffer = global_uniforms.buffer,
|
||
.offset = 0,
|
||
.range = vk.WHOLE_SIZE,
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.{
|
||
.dst_set = gui.image_descriptor_set,
|
||
.dst_binding = 3,
|
||
.dst_array_element = 0,
|
||
.descriptor_type = .sampled_image,
|
||
.descriptor_infos = .{ .image = descriptor_images },
|
||
},
|
||
},
|
||
});
|
||
|
||
return .{
|
||
.global_descriptor_set_layout = global_descriptor_set_layout,
|
||
.per_batch_descriptor_set_layout = per_batch_descriptor_set_layout,
|
||
.descriptor_pool = descriptor_pool,
|
||
.global_descriptor_set = global_descriptor_set,
|
||
.pipeline_layout = pipeline_layout,
|
||
.pipeline = pipeline,
|
||
|
||
.vertex_buffer = vertex_buffer,
|
||
.index_buffer = index_buffer,
|
||
|
||
.global_uniforms = global_uniforms,
|
||
.global_uniforms_staging_buffer = global_uniforms_staging_buffer,
|
||
.global_uniforms_staging_ptr = global_uniforms_staging_ptr,
|
||
.global_uniforms_transfer_semaphores = global_uniforms_transfer_semaphores,
|
||
.point_lights = point_lights,
|
||
.directional_lights = directional_lights,
|
||
.sampler = sampler,
|
||
.deferred_command_buffers = try .initCapacity(allocator_general, 4),
|
||
|
||
.blocks = blocks,
|
||
.chunks = .{ .chunks = chunks },
|
||
.skybox = skybox,
|
||
.player = .init(player_position_sv, 0, 0),
|
||
.font = font_id,
|
||
};
|
||
}
|
||
|
||
pub fn deinit(self: *Game) void {
|
||
const allocator_general = ctx.allocator_general;
|
||
const engine = ctx.engine;
|
||
|
||
std.log.scoped(.deinit).debug("Deinitializing {*}", .{self});
|
||
|
||
for (self.deferred_command_buffers.items) |*command_buffer| {
|
||
command_buffer.deinit();
|
||
}
|
||
self.deferred_command_buffers.deinit(allocator_general);
|
||
|
||
self.vertex_buffer.deinit();
|
||
self.index_buffer.deinit();
|
||
|
||
self.chunks.deinit(self.descriptor_pool);
|
||
self.skybox.deinit();
|
||
|
||
self.global_uniforms.deinit();
|
||
self.global_uniforms_staging_buffer.unmap();
|
||
self.global_uniforms_staging_buffer.deinit();
|
||
self.point_lights.deinit();
|
||
self.directional_lights.deinit();
|
||
|
||
for (self.global_uniforms_transfer_semaphores) |semaphore| {
|
||
engine.destroySemaphore(semaphore);
|
||
}
|
||
allocator_general.free(self.global_uniforms_transfer_semaphores);
|
||
|
||
engine.destroyDescriptorPool(self.descriptor_pool);
|
||
engine.destroySampler(self.sampler);
|
||
engine.destroyPipeline(self.pipeline);
|
||
engine.destroyPipelineLayout(self.pipeline_layout);
|
||
engine.destroyDescriptorSetLayout(self.per_batch_descriptor_set_layout);
|
||
engine.destroyDescriptorSetLayout(self.global_descriptor_set_layout);
|
||
|
||
self.blocks.deinit();
|
||
self.* = undefined;
|
||
}
|
||
|
||
pub fn update(self: *Game, dt: f32) void {
|
||
self.player.update(dt, self);
|
||
|
||
self.render() catch |err| {
|
||
std.log.err("Failed to render: {s}", .{@errorName(err)});
|
||
@panic("Frame update failed");
|
||
};
|
||
}
|
||
|
||
pub fn onKeyDown(self: *Game, key: glfw.Key) void {
|
||
self.player.onKeyDown(key);
|
||
}
|
||
|
||
pub fn onKeyUp(self: *Game, key: glfw.Key) void {
|
||
self.player.onKeyUp(key);
|
||
}
|
||
|
||
pub fn onMouseMove(self: *Game, dx: f32, dy: f32) void {
|
||
self.player.onMouseMove(dx, dy);
|
||
}
|
||
|
||
pub fn onMouseDown(self: *Game, button: glfw.MouseButton) void {
|
||
self.player.onMouseDown(button, self);
|
||
}
|
||
|
||
pub fn onMouseUp(self: *Game, button: glfw.MouseButton) void {
|
||
_ = self;
|
||
_ = button;
|
||
}
|
||
|
||
fn render(self: *Game) !void {
|
||
const allocator_general = ctx.allocator_general;
|
||
const window = ctx.window;
|
||
const swapchain = ctx.swapchain;
|
||
const gui = ctx.gui;
|
||
|
||
const framebuffer_width, const framebuffer_height = blk: {
|
||
const w, const h = window.getFramebufferSize();
|
||
break :blk [_]u32{ @intCast(w), @intCast(h) };
|
||
};
|
||
|
||
if (framebuffer_width == 0 or framebuffer_height == 0) {
|
||
return;
|
||
}
|
||
|
||
if (framebuffer_width != swapchain.extent.width or framebuffer_height != swapchain.extent.height) {
|
||
try self.recreateSwapchain();
|
||
}
|
||
|
||
if (swapchain.swapchain == .null_handle) {
|
||
return;
|
||
}
|
||
|
||
swapchain.acquire() catch |err| switch (err) {
|
||
error.OutOfDateKHR => return self.recreateSwapchain(),
|
||
else => return err,
|
||
};
|
||
|
||
for (self.deferred_command_buffers.items) |*deferred_command_buffer| {
|
||
deferred_command_buffer.deinit();
|
||
}
|
||
self.deferred_command_buffers.clearRetainingCapacity();
|
||
|
||
const extent = swapchain.extent;
|
||
|
||
const framebuffer_size = vm.Vector2.init(
|
||
@floatFromInt(extent.width),
|
||
@floatFromInt(extent.height),
|
||
);
|
||
|
||
const camera_position = self.player.position_sv
|
||
.asFloat()
|
||
.divScalar(c.sv_per_vx)
|
||
.add(.init(0, 0, Player.camera_height_vx));
|
||
const camera_rotation = vm.Quaternion.mulQuaternion(
|
||
.initRotation(.XY, self.player.yaw_turns),
|
||
.initRotation(.YZ, self.player.pitch_turns),
|
||
);
|
||
const camera_aspect_ratio = framebuffer_size.x / framebuffer_size.y;
|
||
const camera_yscale = 1.0 / @tan(0.5 * self.player.vertical_fov_deg * std.math.rad_per_deg);
|
||
const camera_xscale = camera_yscale / camera_aspect_ratio;
|
||
|
||
const matrix_ws_to_vs = vm.Matrix4x4
|
||
.initTranslationRotation(camera_position, camera_rotation)
|
||
.inverseOrthonormal();
|
||
|
||
// zig fmt: off
|
||
const matrix_vs_to_cs = vm.Matrix4x4.init(
|
||
camera_xscale, 0, 0, 0,
|
||
0, 0, 0, 1,
|
||
0, -camera_yscale, 0, 0,
|
||
0, 0, camera_near_plane, 0,
|
||
);
|
||
// zig fmt: on
|
||
|
||
// zig fmt: off
|
||
const matrix_sspx_to_cs = vm.Matrix3x2.init(
|
||
2.0 / framebuffer_size.x, 0,
|
||
0, 2.0 / framebuffer_size.y,
|
||
-1, -1,
|
||
);
|
||
// zig fmt: on
|
||
|
||
const ambient_light = vm.Vector3.init(0.01, 0.01, 0.01);
|
||
|
||
self.global_uniforms_staging_ptr.* = .{
|
||
.matrixWStoVS_i = matrix_ws_to_vs.getIVersor().dropW(),
|
||
.matrixWStoVS_j = matrix_ws_to_vs.getJVersor().dropW(),
|
||
.matrixWStoVS_k = matrix_ws_to_vs.getKVersor().dropW(),
|
||
.matrixWStoVS_t = matrix_ws_to_vs.getTranslationVector().dropW(),
|
||
|
||
.matrixVStoCS = matrix_vs_to_cs,
|
||
.matrixSSPXtoCS = matrix_sspx_to_cs,
|
||
|
||
.pointLightCount = point_lights_data.len,
|
||
.directionalLightCount = directional_lights_data.len,
|
||
.ambientLight = ambient_light,
|
||
};
|
||
try self.global_uniforms_staging_buffer.flush(0, 1);
|
||
|
||
try self.deferred_command_buffers.ensureUnusedCapacity(allocator_general, 1);
|
||
const global_uniforms_transfer_command_buffer = try CommandBuffer.init(.transfer);
|
||
self.deferred_command_buffers.appendAssumeCapacity(global_uniforms_transfer_command_buffer);
|
||
|
||
try global_uniforms_transfer_command_buffer.beginCommandBuffer();
|
||
global_uniforms_transfer_command_buffer.copyBuffer(
|
||
self.global_uniforms_staging_buffer.buffer,
|
||
self.global_uniforms.buffer,
|
||
&.{
|
||
.{
|
||
.src_offset = 0,
|
||
.dst_offset = 0,
|
||
.size = @sizeOf(shaders.GlobalUniforms),
|
||
},
|
||
},
|
||
);
|
||
try global_uniforms_transfer_command_buffer.endCommandBuffer();
|
||
|
||
try global_uniforms_transfer_command_buffer.submit(.{
|
||
.signal_semaphores = &.{self.global_uniforms_transfer_semaphores[swapchain.image_index.?]},
|
||
});
|
||
|
||
try self.deferred_command_buffers.ensureUnusedCapacity(allocator_general, 1);
|
||
const command_buffer: CommandBuffer = try .init(.graphics);
|
||
self.deferred_command_buffers.appendAssumeCapacity(command_buffer);
|
||
|
||
try command_buffer.beginCommandBuffer();
|
||
{
|
||
const swapchain_image = swapchain.getCurrentSwapchainImage();
|
||
|
||
command_buffer.pipelineBarrier(.{
|
||
.src_stage_mask = .{ .color_attachment_output_bit = true },
|
||
.dst_stage_mask = .{ .color_attachment_output_bit = true },
|
||
.image_memory_barriers = &.{
|
||
.{
|
||
.src_access_mask = .{},
|
||
.dst_access_mask = .{
|
||
.color_attachment_read_bit = true,
|
||
.color_attachment_write_bit = true,
|
||
},
|
||
.old_layout = .undefined,
|
||
.new_layout = .color_attachment_optimal,
|
||
.src_queue_family_index = vk.QUEUE_FAMILY_IGNORED,
|
||
.dst_queue_family_index = vk.QUEUE_FAMILY_IGNORED,
|
||
.image = swapchain_image.image,
|
||
.subresource_range = .{
|
||
.aspect_mask = .{ .color_bit = true },
|
||
.base_mip_level = 0,
|
||
.level_count = 1,
|
||
.base_array_layer = 0,
|
||
.layer_count = 1,
|
||
},
|
||
},
|
||
},
|
||
});
|
||
|
||
command_buffer.pipelineBarrier(.{
|
||
.src_stage_mask = .{ .late_fragment_tests_bit = true },
|
||
.dst_stage_mask = .{ .early_fragment_tests_bit = true },
|
||
.image_memory_barriers = &.{
|
||
.{
|
||
.src_access_mask = .{
|
||
.depth_stencil_attachment_write_bit = true,
|
||
},
|
||
.dst_access_mask = .{
|
||
.depth_stencil_attachment_write_bit = true,
|
||
},
|
||
.old_layout = .undefined,
|
||
.new_layout = .depth_stencil_attachment_optimal,
|
||
.src_queue_family_index = vk.QUEUE_FAMILY_IGNORED,
|
||
.dst_queue_family_index = vk.QUEUE_FAMILY_IGNORED,
|
||
.image = swapchain.depth_texture.?.image,
|
||
.subresource_range = .{
|
||
.aspect_mask = .{ .depth_bit = true },
|
||
.base_mip_level = 0,
|
||
.level_count = 1,
|
||
.base_array_layer = 0,
|
||
.layer_count = 1,
|
||
},
|
||
},
|
||
},
|
||
});
|
||
|
||
try command_buffer.beginRendering(.{
|
||
.render_area = .{
|
||
.offset = .{ .x = 0, .y = 0 },
|
||
.extent = extent,
|
||
},
|
||
.layer_count = 1,
|
||
.view_mask = 0,
|
||
.color_attachments = &.{
|
||
.{
|
||
.image_view = swapchain_image.image_view,
|
||
.image_layout = .color_attachment_optimal,
|
||
.load_op = .clear,
|
||
.store_op = .store,
|
||
.clear_value = .{
|
||
.color = .{
|
||
.float_32 = .{ 0, 0, 0, 0 },
|
||
},
|
||
},
|
||
},
|
||
},
|
||
.depth_attachment = .{
|
||
.image_view = swapchain.depth_texture.?.image_view,
|
||
.image_layout = .depth_attachment_optimal,
|
||
.load_op = .clear,
|
||
.store_op = .dont_care,
|
||
.clear_value = .{
|
||
.depth_stencil = .{
|
||
.depth = 0,
|
||
.stencil = 0,
|
||
},
|
||
},
|
||
},
|
||
});
|
||
|
||
command_buffer.setViewport(0, .{
|
||
.x = 0,
|
||
.y = 0,
|
||
.width = @floatFromInt(extent.width),
|
||
.height = @floatFromInt(extent.height),
|
||
.min_depth = 0,
|
||
.max_depth = 1,
|
||
});
|
||
command_buffer.setScissor(0, .{
|
||
.offset = .{ .x = 0, .y = 0 },
|
||
.extent = extent,
|
||
});
|
||
|
||
// --- RENDER 3D SCENE ---
|
||
|
||
command_buffer.bindPipeline(.graphics, self.pipeline);
|
||
try command_buffer.bindVertexBuffer(0, .{
|
||
.buffer = self.vertex_buffer.buffer,
|
||
.offset = 0,
|
||
});
|
||
command_buffer.bindIndexBuffer(self.index_buffer.buffer, 0, .uint16);
|
||
command_buffer.bindDescriptorSet(.graphics, self.pipeline_layout, 0, self.global_descriptor_set, null);
|
||
|
||
var it = self.chunks.chunks.valueIterator();
|
||
while (it.next()) |chunk| {
|
||
chunk.draw(self.pipeline_layout, command_buffer);
|
||
}
|
||
|
||
try self.skybox.draw(command_buffer);
|
||
|
||
// --- RENDER GUI ---
|
||
|
||
try gui.draw(command_buffer);
|
||
|
||
// --- FINALIZE ---
|
||
|
||
command_buffer.endRendering();
|
||
command_buffer.pipelineBarrier(.{
|
||
.src_stage_mask = .{ .color_attachment_output_bit = true },
|
||
.dst_stage_mask = .{ .bottom_of_pipe_bit = true },
|
||
.image_memory_barriers = &.{
|
||
.{
|
||
.src_access_mask = .{ .color_attachment_write_bit = true },
|
||
.dst_access_mask = .{},
|
||
.old_layout = .color_attachment_optimal,
|
||
.new_layout = .present_src_khr,
|
||
.src_queue_family_index = vk.QUEUE_FAMILY_IGNORED,
|
||
.dst_queue_family_index = vk.QUEUE_FAMILY_IGNORED,
|
||
.image = swapchain_image.image,
|
||
.subresource_range = .{
|
||
.aspect_mask = .{ .color_bit = true },
|
||
.base_mip_level = 0,
|
||
.level_count = 1,
|
||
.base_array_layer = 0,
|
||
.layer_count = 1,
|
||
},
|
||
},
|
||
},
|
||
});
|
||
}
|
||
try command_buffer.endCommandBuffer();
|
||
|
||
swapchain.present(.{
|
||
.command_buffer = command_buffer,
|
||
.wait_semaphores = &.{
|
||
.{
|
||
.semaphore = self.global_uniforms_transfer_semaphores[swapchain.image_index.?],
|
||
.stage_flags = .{ .vertex_shader_bit = true },
|
||
},
|
||
},
|
||
}) catch |err| switch (err) {
|
||
error.OutOfDateKHR => return self.recreateSwapchain(),
|
||
else => return err,
|
||
};
|
||
}
|
||
|
||
fn recreateSwapchain(self: *Game) !void {
|
||
const engine = ctx.engine;
|
||
const swapchain = ctx.swapchain;
|
||
|
||
try swapchain.recreate();
|
||
for (self.global_uniforms_transfer_semaphores, 0..) |*semaphore, i| {
|
||
engine.destroySemaphore(semaphore.*);
|
||
semaphore.* = try engine.createSemaphore();
|
||
engine.setObjectName(semaphore.*, "S Transfer[{d}]", .{i});
|
||
}
|
||
}
|