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Demos: Remove "Fire" application
This served no purpose other than looking somewhat neat.
This commit is contained in:
Andreas Kling
parent
79badfd650
commit
6760653d62
Notes:
sideshowbarker
2024-07-17 08:45:34 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/6760653d62
@ -1,4 +0,0 @@
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[App]
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Name=Fire
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Executable=/bin/Fire
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Category=Demos
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Binary file not shown.
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Before Width: | Height: | Size: 594 B |
Binary file not shown.
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Before Width: | Height: | Size: 7.6 KiB |
@ -1,7 +1,6 @@
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add_subdirectory(CatDog)
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add_subdirectory(Cube)
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add_subdirectory(Eyes)
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add_subdirectory(Fire)
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add_subdirectory(LibGfxDemo)
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add_subdirectory(LibGfxScaleDemo)
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add_subdirectory(Mandelbrot)
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@ -1,11 +0,0 @@
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serenity_component(
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Fire
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TARGETS Fire
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)
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set(SOURCES
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Fire.cpp
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)
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serenity_app(Fire ICON app-fire)
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target_link_libraries(Fire PRIVATE LibGUI LibCore LibGfx LibMain)
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@ -1,228 +0,0 @@
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/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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/* Fire.cpp - a (classic) graphics demo for Serenity, by pd.
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* heavily based on the Fabien Sanglard's article:
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* http://fabiensanglard.net/doom_fire_psx/index.html
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*
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* Future directions:
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* [X] This does suggest the need for a palletized graphics surface. Thanks kling!
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* [X] alternate column updates, or vertical interlacing. this would certainly alter
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* the effect, but the update load would be halved.
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* [/] scaled blit
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* [ ] dithering?
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* [X] inlining rand()
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* [/] precalculating and recycling random data
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* [ ] rework/expand palette
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* [ ] switch to use tsc values for perf check
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* [ ] handle mouse events differently for smoother painting (queue)
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* [ ] handle fire bitmap edges better
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*/
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#include <AK/Array.h>
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#include <LibCore/ElapsedTimer.h>
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#include <LibCore/System.h>
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#include <LibGUI/Action.h>
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#include <LibGUI/Application.h>
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#include <LibGUI/Frame.h>
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#include <LibGUI/Icon.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/Menubar.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Window.h>
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#include <LibGfx/Bitmap.h>
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#include <LibMain/Main.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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static constexpr int FIRE_WIDTH = 320;
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static constexpr int FIRE_HEIGHT = 200;
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static constexpr int FIRE_MAX = 29;
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static constexpr Array<Color, 30> s_palette = {
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Color(0x07, 0x07, 0x07), Color(0x1F, 0x07, 0x07), Color(0x2F, 0x0F, 0x07),
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Color(0x47, 0x0F, 0x07), Color(0x57, 0x17, 0x07), Color(0x67, 0x1F, 0x07),
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Color(0x77, 0x1F, 0x07), Color(0x9F, 0x2F, 0x07), Color(0xAF, 0x3F, 0x07),
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Color(0xBF, 0x47, 0x07), Color(0xC7, 0x47, 0x07), Color(0xDF, 0x4F, 0x07),
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Color(0xDF, 0x57, 0x07), Color(0xD7, 0x5F, 0x07), Color(0xD7, 0x5F, 0x07),
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Color(0xD7, 0x67, 0x0F), Color(0xCF, 0x6F, 0x0F), Color(0xCF, 0x7F, 0x0F),
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Color(0xCF, 0x87, 0x17), Color(0xC7, 0x87, 0x17), Color(0xC7, 0x8F, 0x17),
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Color(0xC7, 0x97, 0x1F), Color(0xBF, 0x9F, 0x1F), Color(0xBF, 0xA7, 0x27),
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Color(0xBF, 0xAF, 0x2F), Color(0xB7, 0xAF, 0x2F), Color(0xB7, 0xB7, 0x37),
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Color(0xCF, 0xCF, 0x6F), Color(0xEF, 0xEF, 0xC7), Color(0xFF, 0xFF, 0xFF)
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};
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class Fire : public GUI::Frame {
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C_OBJECT(Fire);
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public:
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virtual ~Fire() override = default;
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void set_stat_label(RefPtr<GUI::Label> l) { stats = l; };
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private:
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Fire();
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RefPtr<Gfx::Bitmap> bitmap;
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RefPtr<GUI::Label> stats;
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void timer_event(Core::TimerEvent&) override;
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virtual void mousedown_event(GUI::MouseEvent& event) override;
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virtual void mousemove_event(GUI::MouseEvent& event) override;
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virtual void mouseup_event(GUI::MouseEvent& event) override;
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bool dragging;
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int timeAvg;
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int cycles;
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int phase;
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};
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Fire::Fire()
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{
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bitmap = Gfx::Bitmap::try_create(Gfx::BitmapFormat::Indexed8, { FIRE_WIDTH, FIRE_HEIGHT }).release_value_but_fixme_should_propagate_errors();
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/* Initialize fire palette */
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for (int i = 0; i < 30; i++)
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bitmap->set_palette_color(i, s_palette[i]);
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/* Set remaining entries to white */
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for (int i = 30; i < 256; i++)
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bitmap->set_palette_color(i, Color::White);
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dragging = false;
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timeAvg = 0;
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cycles = 0;
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phase = 0;
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srand(time(nullptr));
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stop_timer();
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start_timer(20);
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/* Draw fire "source" on bottom row of pixels */
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for (int i = 0; i < FIRE_WIDTH; i++)
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bitmap->scanline_u8(bitmap->height() - 1)[i] = FIRE_MAX;
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/* Set off initital paint event */
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// update();
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}
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void Fire::paint_event(GUI::PaintEvent& event)
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{
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GUI::Frame::paint_event(event);
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auto timer = Core::ElapsedTimer::start_new();
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GUI::Painter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.draw_scaled_bitmap(frame_inner_rect(), *bitmap, bitmap->rect());
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timeAvg += timer.elapsed();
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cycles++;
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}
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void Fire::timer_event(Core::TimerEvent&)
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{
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/* Update only even or odd columns per frame... */
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phase++;
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if (phase > 1)
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phase = 0;
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/* Paint our palettized buffer to screen */
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for (int px = 0 + phase; px < FIRE_WIDTH; px += 2) {
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for (int py = 1; py < FIRE_HEIGHT; py++) {
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int rnd = rand() % 3;
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/* Calculate new pixel value, don't go below 0 */
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u8 nv = bitmap->scanline_u8(py)[px];
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if (nv > 0)
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nv -= (rnd & 1);
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/* ...sigh... */
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int epx = px + (1 - rnd);
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if (epx < 0)
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epx = 0;
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else if (epx > FIRE_WIDTH)
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epx = FIRE_WIDTH;
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bitmap->scanline_u8(py - 1)[epx] = nv;
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}
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}
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if ((cycles % 50) == 0) {
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dbgln("{} total cycles. finished 50 in {} ms, avg {} ms", cycles, timeAvg, timeAvg / 50);
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stats->set_text(DeprecatedString::formatted("{} ms", timeAvg / 50));
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timeAvg = 0;
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}
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update();
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}
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void Fire::mousedown_event(GUI::MouseEvent& event)
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{
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if (event.button() == GUI::MouseButton::Primary)
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dragging = true;
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return GUI::Widget::mousedown_event(event);
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}
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/* FIXME: needs to account for the size of the window rect */
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void Fire::mousemove_event(GUI::MouseEvent& event)
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{
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if (dragging) {
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int ypos = event.y() / 2;
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int xpos = event.x() / 2;
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if (bitmap->rect().shrunken(1, 1, 0, 0).contains(xpos, ypos)) {
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bitmap->scanline_u8(ypos - 1)[xpos] = FIRE_MAX + 5;
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bitmap->scanline_u8(ypos - 1)[xpos + 1] = FIRE_MAX + 5;
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bitmap->scanline_u8(ypos)[xpos] = FIRE_MAX + 5;
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bitmap->scanline_u8(ypos)[xpos + 1] = FIRE_MAX + 5;
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}
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}
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return GUI::Widget::mousemove_event(event);
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}
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void Fire::mouseup_event(GUI::MouseEvent& event)
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{
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if (event.button() == GUI::MouseButton::Primary)
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dragging = false;
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return GUI::Widget::mouseup_event(event);
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}
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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auto app = TRY(GUI::Application::try_create(arguments));
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TRY(Core::System::pledge("stdio recvfd sendfd rpath"));
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TRY(Core::System::unveil("/res", "r"));
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TRY(Core::System::unveil(nullptr, nullptr));
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auto window = TRY(GUI::Window::try_create());
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window->set_double_buffering_enabled(false);
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window->set_title("Fire");
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window->set_resizable(false);
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window->resize(FIRE_WIDTH * 2 + 4, FIRE_HEIGHT * 2 + 4);
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auto file_menu = TRY(window->try_add_menu("&File"));
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TRY(file_menu->try_add_action(GUI::CommonActions::make_quit_action([&](auto&) { app->quit(); })));
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auto fire = TRY(window->try_set_main_widget<Fire>());
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auto time = TRY(fire->try_add<GUI::Label>());
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time->set_relative_rect({ 0, 4, 40, 10 });
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time->move_by({ window->width() - time->width(), 0 });
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fire->set_stat_label(time);
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window->show();
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auto app_icon = GUI::Icon::default_icon("app-fire"sv);
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window->set_icon(app_icon.bitmap_for_size(16));
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return app->exec();
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}
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