evan/ludum-dare-49
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working through shaders

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This commit is contained in:
Evan Pratten 2021-09-20 23:24:35 -04:00
parent 8e3d1b14e0
commit f1bbcfa9b2
1 changed files with 23 additions and 9 deletions
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32
game/src/lib.rs
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@ -1,5 +1,6 @@
use discord_sdk::activity::ActivityBuilder; use discord_sdk::activity::ActivityBuilder;
use raylib::prelude::*; use raylib::prelude::*;
use shaders::util::{dynamic_screen_texture::DynScreenTexture, render_texture::render_to_texture};
use tracing::error; use tracing::error;
use utilities::{ use utilities::{
datastore::StaticGameData, datastore::StaticGameData,
@ -13,6 +14,7 @@ extern crate thiserror;
#[macro_use] #[macro_use]
extern crate serde; extern crate serde;
mod shaders;
mod utilities; mod utilities;
/// The game entrypoint /// The game entrypoint
@ -54,19 +56,31 @@ pub async fn game_begin() {
.resizable() .resizable()
.build(); .build();
// Create a dynamic texture to draw to for processing by shaders
let mut dynamic_texture =
DynScreenTexture::new(&mut rl, &thread).expect("Failed to allocate a screen texture");
while !rl.window_should_close() { while !rl.window_should_close() {
dynamic_texture.update(&mut rl, &thread).unwrap();
let mut d = rl.begin_drawing(&thread); let mut d = rl.begin_drawing(&thread);
d.clear_background(Color::WHITE); render_to_texture(&mut dynamic_texture, || {
d.draw_text("Hello, world!", 12, 12, 20, Color::BLACK); d.clear_background(Color::WHITE);
d.draw_text("Hello, world!", 12, 12, 20, Color::BLACK);
let angle = (d.get_time() as f32 * 80.0).to_radians(); let angle = (d.get_time() as f32 * 80.0).to_radians();
let screen_center = Vector2::new(d.get_screen_width() as f32 / 2.0, d.get_screen_height() as f32 / 2.0); let screen_center = Vector2::new(
let top = rotate_vector(Vector2::new(0.0, -100.0), angle) + screen_center; d.get_screen_width() as f32 / 2.0,
let right = rotate_vector(Vector2::new(100.0, 0.0), angle) + screen_center; d.get_screen_height() as f32 / 2.0,
let left = rotate_vector(Vector2::new(-100.0, 0.0), angle) + screen_center; );
let top = rotate_vector(Vector2::new(0.0, -100.0), angle) + screen_center;
let right = rotate_vector(Vector2::new(100.0, 0.0), angle) + screen_center;
let left = rotate_vector(Vector2::new(-100.0, 0.0), angle) + screen_center;
d.draw_triangle(top, left, right, Color::BLACK); d.draw_triangle(top, left, right, Color::BLACK);
d.draw_fps(10, 100); d.draw_fps(10, 100);
});
} }
} }