Noratrieb/game-wip-dontplay
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Switch to lightmap texture based lighting

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This commit is contained in:
crumblingstatue 2023-04-07 22:16:57 +02:00
parent 907a5da105
commit f9a99fc0ae
6 changed files with 56 additions and 128 deletions
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22
src/app.rs
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@ -7,7 +7,8 @@ use gamedebug_core::{imm, imm_dbg};
use sfml::{
audio::SoundSource,
graphics::{
Color, Rect, RenderTarget, RenderTexture, RenderWindow, Sprite, Transformable, View,
BlendMode, Color, Rect, RenderStates, RenderTarget, RenderTexture, RenderWindow, Sprite,
Transformable, View,
},
system::Vector2u,
window::{Event, Key},
@ -15,7 +16,7 @@ use sfml::{
use crate::{
debug::DebugState,
game::{for_each_tile_on_screen, Biome, GameState},
game::{for_each_tile_on_screen, Biome, GameState, LightSource},
graphics::{self, ScreenPos, ScreenPosScalar},
input::Input,
math::{center_offset, px_per_frame_to_km_h, WorldPos, M_PER_PX, TILE_SIZE},
@ -36,6 +37,8 @@ pub struct App {
pub scale: u8,
/// RenderTexture for rendering the game at its native resolution
pub rt: RenderTexture,
/// Light map overlay, blended together with the non-lighted version of the scene
pub light_map: RenderTexture,
}
impl App {
@ -49,6 +52,8 @@ impl App {
let rw_size = rw.size();
let rt =
RenderTexture::new(rw_size.x, rw_size.y).context("Failed to create render texture")?;
let light_map = RenderTexture::new(rw_size.x, rw_size.y)
.context("Failed to create lightmap texture")?;
Ok(Self {
rw,
should_quit: false,
@ -59,6 +64,7 @@ impl App {
debug: DebugState::default(),
scale: 1,
rt,
light_map,
})
}
@ -198,6 +204,8 @@ impl App {
} else {
t.bg = self.game.tile_to_place;
}
} else if self.input.mid_pressed {
self.game.light_sources.push(LightSource { pos: wpos });
}
if self.game.camera_offset.y > 643_000 {
self.game.current_biome = Biome::Underground;
@ -244,10 +252,10 @@ impl App {
}
fn do_rendering(&mut self) {
self.game.light_pass(&mut self.light_map, &self.res);
self.rt.clear(Color::rgb(55, 221, 231));
self.game.render_pre_step(&mut self.res, self.rt.size());
self.game.draw_world(&mut self.rt, &mut self.res);
self.game.draw_entities(&mut self.rt, &mut self.res);
self.game.draw_entities(&mut self.rt);
self.rt.display();
let mut spr = Sprite::with_texture(self.rt.texture());
spr.set_scale((self.scale as f32, self.scale as f32));
@ -255,6 +263,12 @@ impl App {
spr.set_position((vco.x as f32, vco.y as f32));
self.rw.clear(Color::rgb(40, 10, 70));
self.rw.draw(&spr);
// Draw light overlay with multiply blending
let mut rst = RenderStates::default();
rst.blend_mode = BlendMode::MULTIPLY;
self.light_map.display();
spr.set_texture(self.light_map.texture(), false);
self.rw.draw_with_renderstates(&spr, &rst);
self.sf_egui
.do_frame(|ctx| {
if self.debug.panel {