use ggez::{event, graphics};
use ggez::{Context, ContextBuilder, GameResult};
use sepax2d::prelude::*;
mod dynamic;
use dynamic::DrawableShape;
struct MainState
{
shapes: Vec<(Box<dyn DrawableShape>, bool)>,
mouse: (f32, f32),
selected: Option<usize>
}
impl MainState
{
fn new() -> GameResult<MainState>
{
let hexagon = Polygon::from_vertices((600.0, 100.0), vec![(0.0, 0.0), (50.0, 50.0), (50.0, 100.0), (0.0, 150.0), (-50.0, 100.0), (-50.0, 50.0)]);
let triangle = Polygon::from_vertices((150.0, 150.0), vec![(0.0, 0.0), (100.0, 50.0), (0.0, 50.0)]);
let circle = Circle::new((300.0, 100.0), 80.0);
let small_circle = Circle::new((700.0, 300.0), 40.0);
let rectangle = AABB::new((550.0, 400.0), 100.0, 50.0);
let square = AABB::new((100.0, 350.0), 50.0, 50.0);
let vertical_capsule = Capsule::new((250.0, 400.0), (0.0, 30.0), 40.0);
let rotated_capsule = Capsule::new((400.0, 500.0), (30.0, 20.0), 50.0);
let gram = Parallelogram::new((400.0, 300.0), (25.0, 50.0), (25.0, -100.0));
let s = MainState { shapes: vec!
[
(Box::new(hexagon), false),
(Box::new(triangle), false),
(Box::new(circle), false),
(Box::new(small_circle), false),
(Box::new(rectangle), false),
(Box::new(square), false),
(Box::new(vertical_capsule), false),
(Box::new(rotated_capsule), false),
(Box::new(gram), false)
], mouse: (0.0, 0.0), selected: None };
return Ok(s);
}
}
impl event::EventHandler<ggez::GameError> for MainState
{
fn update(&mut self, _context: &mut Context) -> GameResult
{
for (_shape, collision) in self.shapes.iter_mut()
{
*collision = false;
}
if let Some(i) = self.selected
{
self.shapes[i].0.set_position(self.mouse);
}
for i in 0..self.shapes.len()
{
for j in i+1..self.shapes.len()
{
if sat_overlap(&self.shapes[i].0, &self.shapes[j].0)
{
self.shapes[i].1 = true;
self.shapes[j].1 = true;
}
}
}
return Ok(());
}
fn draw(&mut self, context: &mut Context) -> GameResult
{
graphics::clear(context, [0.6, 0.6, 0.6, 1.0].into());
for (shape, collides) in self.shapes.iter()
{
let mesh = shape.draw(*collides, context)?;
let position = shape.position();
graphics::draw(context, &mesh, ([position.0, position.1],))?;
}
let font = graphics::Font::new(context, "/PolandCanInto.otf")?;
let text = graphics::Text::new(graphics::TextFragment
{
text: "Click and drag to move a shape! \n \n Shapes will change color when they are overlapping.".to_string(),
font: Some(font),
color: Some(graphics::Color::new(0.0, 0.0, 0.0, 1.0)),
..Default::default()
});
graphics::draw(context, &text, ([25.0, 25.0],))?;
graphics::present(context)?;
return Ok(());
}
fn mouse_button_down_event(&mut self, _ctx: &mut Context, _button: ggez::input::mouse::MouseButton, x: f32, y: f32)
{
for (i, (shape, _overlap)) in self.shapes.iter().enumerate()
{
if contains_point(shape, (x, y))
{
self.selected = Some(i);
return;
}
}
}
fn mouse_button_up_event(&mut self, _ctx: &mut Context, _button: ggez::input::mouse::MouseButton, _x: f32, _y: f32)
{
self.selected = None;
}
fn mouse_motion_event(&mut self, _ctx: &mut Context, x: f32, y: f32, _dx: f32, _dy: f32)
{
self.mouse = (x, y);
}
}
fn main() -> GameResult
{
let cb = ContextBuilder::new("overlap", "Meowitzher")
.add_resource_path("./examples/resources/")
.window_setup(ggez::conf::WindowSetup::default().title("Overlap Example!"));
let (context, event_loop) = cb.build()?;
let state = MainState::new()?;
event::run(context, event_loop, state)
}