v/examples/gg/rotating_textured_quad.v
Eliyaan (Nopana) bbb61ab368
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gg, gx: deprecate gx and replace all occurences with gg (which now contains all the functionality of gx) (#24966)
2025-08-14 19:53:56 +03:00

56 lines
1.8 KiB
V

import gg
import os.asset
import sokol.sgl
// If you have emscripten (see https://emscripten.org/docs/getting_started/index.html), you can compile this program to WASM, using:
// `v -os wasm32_emscripten -o examples/gg/rotating_textured_quad.html examples/gg/rotating_textured_quad.v`, and later check with:
// `emrun examples/gg/rotating_textured_quad.html` .
#flag wasm32_emscripten --embed-file @VEXEROOT/examples/assets/logo.png@/assets/logo.png
#flag wasm32_emscripten --embed-file @VEXEROOT/examples/assets/fonts/RobotoMono-Regular.ttf@/assets/RobotoMono-Regular.ttf
pub struct Window {
pub mut:
ctx &gg.Context = unsafe { nil }
img gg.Image
}
pub fn (mut window Window) init() {
image_path := asset.get_path('../assets', 'logo.png')
window.img = window.ctx.create_image(image_path) or { panic(err) }
}
pub fn (mut window Window) draw() {
angle := f32(window.ctx.frame) / 64 // since window.ctx.frame is increased by 1 on every frame -> the angle will be increasing too
window.ctx.begin()
sgl.load_pipeline(window.ctx.pipeline.alpha)
sgl.translate(250, 250, 0) // center of the screen
sgl.rotate(angle, 0.0, 0.0, 1.0) // rotate around the Z axis pointing towards the camera
sgl.enable_texture()
sgl.texture(window.img.simg, window.img.ssmp)
sgl.begin_quads()
sgl.c4b(255, 255, 255, 255)
sgl.v3f_t2f(200, 200, 0, 1.0, 1.0)
sgl.v3f_t2f(200, -200, 0, 1.0, 0.0)
sgl.v3f_t2f(-200, -200, 0, 0.0, 0.0)
sgl.v3f_t2f(-200, 200, 0, 0.0, 1.0)
sgl.end()
sgl.disable_texture()
window.ctx.end()
}
fn main() {
mut window := &Window{}
window.ctx = gg.new_context(
window_title: 'Rotating V logo'
bg_color: gg.light_green
width: 500
height: 500
user_data: window
init_fn: window.init
frame_fn: window.draw
font_path: asset.get_path('../assets', 'RobotoMono-Regular.ttf')
)
window.ctx.run()
}