use ggez::event;
use ggez::glam::*;
use ggez::graphics::{self, Color, DrawParam};
use ggez::{Context, GameResult};
const AQUA: graphics::Color = graphics::Color::new(0.0078, 0.7647, 0.6039, 1.0);
struct MainState {
demo_mesh: graphics::Mesh,
square_mesh: graphics::Mesh,
demo_image: graphics::Image,
demo_instances: graphics::InstanceArray,
}
impl MainState {
fn new(ctx: &mut Context) -> GameResult<MainState> {
let demo_mesh = graphics::Mesh::new_circle(
ctx,
graphics::DrawMode::fill(),
Vec2::new(0.0, 0.0),
100.0,
2.0,
AQUA,
)?;
let square_mesh = graphics::Mesh::new_rectangle(
ctx,
graphics::DrawMode::fill(),
graphics::Rect::new(0.0, 0.0, 400.0, 400.0),
Color::WHITE,
)?;
let demo_image = graphics::Image::from_solid(ctx, 200, AQUA);
let mut demo_instances = graphics::InstanceArray::new(ctx, demo_image.clone());
demo_instances.push(
DrawParam::default()
.dest(Vec2::new(250.0, 350.0))
.scale(Vec2::new(0.25, 0.25)),
);
demo_instances.push(
DrawParam::default()
.dest(Vec2::new(250.0, 425.0))
.scale(Vec2::new(0.1, 0.1)),
);
let s = MainState {
demo_mesh,
square_mesh,
demo_image,
demo_instances,
};
Ok(s)
}
}
impl event::EventHandler<ggez::GameError> for MainState {
fn update(&mut self, _ctx: &mut Context) -> GameResult {
Ok(())
}
fn draw(&mut self, ctx: &mut Context) -> GameResult {
let mut canvas = graphics::Canvas::from_frame(ctx, AQUA);
canvas.draw(
&self.square_mesh,
DrawParam::default().dest(Vec2::new(200.0, 100.0)),
);
canvas.draw(
&self.demo_mesh,
DrawParam::default().dest(Vec2::new(150.0, 200.0)),
);
canvas.draw(
&self.demo_image,
DrawParam::default().dest(Vec2::new(450.0, 200.0)),
);
canvas.draw(
graphics::Text::new("-").set_scale(300.),
graphics::DrawParam::from([150., 135.]).color(AQUA),
);
canvas.draw(
&self.demo_instances,
DrawParam::default().dest(Vec2::new(0.0, 0.0)),
);
canvas.finish(ctx)?;
Ok(())
}
}
pub fn main() -> GameResult {
use std::env;
use std::path;
let resource_dir = if let Ok(manifest_dir) = env::var("CARGO_MANIFEST_DIR") {
let mut path = path::PathBuf::from(manifest_dir);
path.push("resources");
path
} else {
path::PathBuf::from("./resources")
};
let cb = ggez::ContextBuilder::new("colorspace", "ggez").add_resource_path(resource_dir);
let (mut ctx, event_loop) = cb.build()?;
let state = MainState::new(&mut ctx)?;
event::run(ctx, event_loop, state)
}