zig/mach
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mach: introduce cross platform Timer abstraction

Browse source 
This Timer uses std.time.Timer as backing timer in native platforms, and
will use custom timers for special platforms (wasm, android?, ios?).

Unlike std.time.Timer, its primary API is focused on floats. Also meant
to provides some convenient functions alongside base ones.

Follows std.time.Timer API, but methods by default return f32 i.e
non-precise variant with precise variants available returning u64.
This commit is contained in:
iddev5 2022-05-17 13:20:19 +05:30 • committed by Stephen Gutekanst
parent be935c64ef
commit 3bb45c75a1
9 changed files with 63 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

6
examples/rotating-cube/main.zig
View file

@ -12,7 +12,7 @@ const UniformBufferObject = struct {
mat: zm.Mat,
};
var timer: std.time.Timer = undefined;
var timer: mach.Timer = undefined;
pipeline: gpu.RenderPipeline,
queue: gpu.Queue,
@ -21,7 +21,7 @@ uniform_buffer: gpu.Buffer,
bind_group: gpu.BindGroup,
pub fn init(app: *App, engine: *mach.Engine) !void {
timer = try std.time.Timer.start();
timer = try mach.Timer.start();
// TODO: higher level input handlers
engine.core.setKeyCallback(struct {
@ -173,7 +173,7 @@ pub fn update(app: *App, engine: *mach.Engine) !bool {
};
{
const time = @intToFloat(f32, timer.read()) / @as(f32, std.time.ns_per_s);
const time = timer.read();
const model = zm.mul(zm.rotationX(time * (std.math.pi / 2.0)), zm.rotationZ(time * (std.math.pi / 2.0)));
const view = zm.lookAtRh(
zm.f32x4(0, 4, 2, 1),