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use std::collections::HashMap;
use sfml::system::Vector2f;
use sfml::window::mouse::Button;
use sfml::window::{
ContextSettings,
Event,
Style,
};
use sfml::graphics::{
RenderWindow,
RenderTarget,
View,
};
use sfml::graphics::{
Texture,
Image,
Color,
Rect,
};
use sfml::graphics::{
RectangleShape,
Transformable,
};
#[derive(RustEmbed)]
#[folder = "res/maps"]
pub struct MapAssets;
#[derive(Debug)]
pub struct Graphics {
// sfml elements
window: RenderWindow,
view: View,
// status
running: bool,
// loaded resources
tilesets: HashMap<u32, Image>,
textures: HashMap<u32, Texture>,
}
impl Graphics {
pub fn new() -> Graphics {
let default_window_size = (1280, 720);
let default_framerate = 80;
let context_settings = ContextSettings {
antialiasing_level: 0,
..Default::default()
};
// create window
let mut window = RenderWindow::new(
default_window_size,
"Subconscious",
Style::CLOSE,
&context_settings
);
window.set_framerate_limit(default_framerate);
window.set_vertical_sync_enabled(true);
let mut graphics = Graphics {
// sfml elements
window: window,
view: View::new(
Vector2f::new(
default_window_size.0 as f32 / 2.0,
default_window_size.1 as f32 / 2.0
),
Vector2f::new(
default_window_size.0 as f32,
default_window_size.1 as f32,
),
),
// status
running: true,
// resources
tilesets: HashMap::new(),
textures: HashMap::new(),
};
graphics.window.set_view(&graphics.view);
return graphics;
}
pub fn is_running(self: &mut Self) -> bool {
return self.running;
}
pub fn render(self: &mut Self, state: &crate::game::State) {
// background
let bgcolor = match state.map.background_colour {
Some(color) => Color::rgb(color.red, color.green, color.blue),
None => Color::BLACK,
};
self.window.clear(&bgcolor);
// render map
// for each tile
for y in 0 .. state.map.height {
for x in 0 .. state.map.width {
// for each layer
for layer in &state.map.layers {
let tmx_tile = layer.tiles[y as usize][x as usize];
// blank tile
if tmx_tile <= 0 {
continue;
}
let tmx_tileset = match state.map.get_tileset_by_gid(tmx_tile) {
Some(tileset) => tileset,
None => {
panic!("Failed to get tileset with get_tileset_by_gid");
}
};
// load tileset if not loaded yet
// TODO: load in a separate thread?
if !self.tilesets.contains_key(&tmx_tileset.first_gid) {
// TODO: replace with iter or error message
assert_eq!(tmx_tileset.images.len(), 1);
// load tileset image
let tmx_image = &tmx_tileset.images[0];
let asset = match MapAssets::get(&tmx_image.source) {
Some(asset) => asset,
None => {
panic!("Failed to get asset: {}", &tmx_image.source);
}
};
let image = match Image::from_memory(asset.as_ref()) {
Some(image) => image,
None => {
panic!("Failed load image from asset");
}
};
// load tiles (textures)
let tileset_width = tmx_image.width as u32 / tmx_tileset.tile_width;
let tileset_height = tmx_image.height as u32 / tmx_tileset.tile_height;
for ty in 0 .. tileset_height {
for tx in 0 .. tileset_width {
let texture = Texture::from_image_with_rect(
&image, &Rect::new(
(tx * tmx_tileset.tile_width) as i32,
(ty * tmx_tileset.tile_height) as i32,
tmx_tileset.tile_width as i32,
tmx_tileset.tile_height as i32
)
).unwrap();
// save tile texture
self.textures.insert(
tmx_tileset.first_gid + ty * tileset_width + tx,
texture
);
}
}
// save tileset image
self.tilesets.insert(tmx_tileset.first_gid, image);
}
// draw!
// TODO: check map render order
let texture = &self.textures.get(&tmx_tile).unwrap();
let mut tile_rect = RectangleShape::with_texture(texture);
tile_rect.set_size(Vector2f {
x: tmx_tileset.tile_width as f32,
y: tmx_tileset.tile_height as f32
});
tile_rect.set_position(Vector2f {
x: (x * tmx_tileset.tile_width) as f32,
y: (y * tmx_tileset.tile_height) as f32
});
self.window.draw(&tile_rect);
}
}
}
self.window.display();
}
pub fn update(self: &mut Self) {
while let Some(ev) = self.window.poll_event() {
match ev {
Event::Closed => {
self.window.close();
self.running = false;
},
Event::MouseWheelScrolled { wheel: _, delta, x, y } => {
},
Event::MouseButtonPressed { button, x: _, y: _ } => {
match button {
Button::Left => {},
Button::Right => {}
_ => {},
}
},
Event::MouseButtonReleased { button, x: _, y: _ } => {
match button {
Button::Left => {}
Button::Right => {},
_ => {},
}
},
_ => {},
}
}
}
}
|
