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@ -2,18 +2,15 @@ const std = @import("std"); |
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const GeneralPurposeAllocator = std.heap.GeneralPurposeAllocator(.{}); |
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const core = @import("mach").core; |
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const Renderer = @import("./renderer.zig"); |
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const Renderer = @import("./Renderer.zig"); |
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const flecszigble = @import("flecs-zig-ble"); |
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const flecs = flecszigble.flecs; |
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const Context = flecszigble.Context(void); |
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const World = Context.World; |
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const Iter = Context.Iter; |
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const flecs = flecszigble.flecs; |
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const OnLoad = flecs.pipeline.OnLoad; |
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const OnUpdate = flecs.pipeline.OnUpdate; |
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const OnStore = flecs.pipeline.OnStore; |
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pub const App = @This(); |
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gpa: GeneralPurposeAllocator, |
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@ -57,14 +54,10 @@ pub fn init(app: *App) !void { |
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app.world = world; |
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// Create a singleton component for accessing the `App` from ECS. |
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_ = try world.singleton("App", *App, app); |
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// TODO: The way we register systems using flecs-zig-ble is still very WIP. |
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_ = try world.system("PollEvents", pollEvents, OnLoad, "App"); |
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_ = try world.singleton(*App, app); |
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const s = try world.system("UpdateWindowTitle", updateWindowTitle, OnStore, ""); |
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// Set the update interval of the `UpdateWindowTitle` system to 1 second. |
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_ = flecszigble.c.ecs_set_interval(world.raw, s.raw, 1.0); |
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_ = try world.system(PollEvents); |
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_ = try world.system(UpdateWindowTitle); |
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app.renderer = try Renderer.init(app); |
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} |
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@ -84,30 +77,36 @@ pub fn update(app: *App) !bool { |
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return !app.world.progress(0.0); |
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} |
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/// Read events from the OS such as input. |
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pub fn pollEvents(it: Iter) void { |
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const app = it.field(*App, 1)[0]; |
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/// System that reads events from the OS such as input. |
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pub const PollEvents = struct { |
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pub const phase = flecs.pipeline.OnLoad; |
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pub const expr = "App($)"; |
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pub fn callback(world: *World, app: *const *App) void { |
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var pollIter = core.pollEvents(); |
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while (pollIter.next()) |event| { |
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switch (event) { |
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// Allow the renderer to act on the window being resized. |
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// This is required so we can resize necessary buffers. |
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.framebuffer_resize => |_| app.renderer.resize(), |
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.framebuffer_resize => |_| app.*.renderer.resize(), |
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// Close the window when requested, such as when |
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// pressing the X button in the window title bar. |
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.close => it.world.quit(), |
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.close => world.quit(), |
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else => {}, |
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} |
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} |
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} |
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}; |
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/// Update the window title to show FPS and input frequency. |
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pub fn updateWindowTitle(_: Iter) void { |
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/// System that updates the window title to show FPS and input frequency. |
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pub const UpdateWindowTitle = struct { |
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pub const phase = flecs.pipeline.OnStore; |
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pub const interval = 1.0; // Run only once a second. |
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pub fn callback(_: Iter) void { |
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core.printTitle( |
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"Triangle [ {d}fps ] [ Input {d}hz ]", |
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.{ core.frameRate(), core.inputRate() }, |
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) catch @panic("Title too long!"); |
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} |
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}; |