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package main
import "core:math"
import gpu "../.."
import app "../../app"
main :: proc() {
state, ok := app.init_window(800, 600, "GPU - Spinning Cube")
if !ok {
return
}
defer app.shutdown(&state)
camera := gpu.default_camera_3d()
cube := gpu.gen_mesh_cube(1, 1, 1)
defer gpu.unload_mesh(cube)
rotation: f32 = 0
for !app.window_should_close(&state) {
dt := app.get_frame_time(&state)
rotation += dt * math.PI * 0.5 // quarter turn per second
app.update_camera(&state, &camera, .ORBITAL)
frame := app.begin_frame(&state, gpu.CORNFLOWER_BLUE)
gpu.set_camera_3d(&frame, camera)
// Spinning cube (custom transform via draw_mesh)
transform := gpu.mat4_translate({0, 0.5, 0}) * gpu.mat4_rotate_y(rotation)
_ = gpu.draw_mesh_instance_frame(&frame, {mesh = cube, transform = transform})
// Ground plane
_ = gpu.draw_plane_frame(&frame, {center = {0, 0, 0}, size = {10, 10}})
// Grid
_ = gpu.draw_grid_frame(&frame, {slices = 10, spacing = 1})
// Static shapes
_ = gpu.draw_sphere_frame(&frame, {center = {-2, 0.5, 0}, radius = 0.5})
_ = gpu.draw_cube_frame(&frame, {center = {2, 0.25, 0}, size = {0.5, 0.5, 0.5}})
_ = app.submit_frame(&state, &frame)
if app.is_key_pressed(&state, .Escape) {
break
}
}
}