Ivan 8Observer8
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| --- | |
| Language: Cpp | |
| # BasedOnStyle: WebKit | |
| AccessModifierOffset: -4 | |
| AlignAfterOpenBracket: DontAlign | |
| AlignArrayOfStructures: None | |
| AlignConsecutiveMacros: None | |
| AlignConsecutiveAssignments: None | |
| AlignConsecutiveBitFields: None | |
| AlignConsecutiveDeclarations: None |
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| #include <box2d/box2d.h> | |
| #include <iostream> | |
| int main() | |
| { | |
| b2Vec2 gravity(0.f, -9.8f); | |
| b2World* world = new b2World(gravity); | |
| float gx = world->GetGravity().x; | |
| float gy = world->GetGravity().y; | |
| std::cout << "gravity = (" << gx << ", " << gy << ")" << std::endl; |
8Observer8
/ debug_drawer.py
Last active
December 2, 2024 11:43
PyBox2D collision detection using Pygame
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| import math | |
| import pygame | |
| from Box2D import b2Draw | |
| class DebugDrawer(b2Draw): | |
| def __init__(self, window, pixelsPerMeter, thickness=3): | |
| super().__init__() |
8Observer8
/ gist:fa980059a1bc581c6195438e4d327438
Created
November 29, 2024 23:35
Errors for building Chipmunk2D with Emscripten, CMake, and MinGW
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| E:\libs\Chipmunk2D-Chipmunk-7.0.3>emcmake cmake -G "MinGW Makefiles" -S . -B dist -DCMAKE_INSTALL_PREFIX=E:/libs/chipmunk-7.0.3-prefix/web | |
| configure: cmake -G "MinGW Makefiles" -S . -B dist -DCMAKE_INSTALL_PREFIX=E:/libs/chipmunk-7.0.3-prefix/web -DCMAKE_TOOLCHAIN_FILE=C:\emsdk\upstream\emscripten\cmake\Modules\Platform\Emscripten.cmake -DCMAKE_CROSSCOMPILING_EMULATOR=C:/emsdk/node/20.18.0_64bit/bin/node.exe | |
| Configuring Chipmunk2D version 7.0.3 | |
| CMake Warning (dev) at src/CMakeLists.txt:15 (add_library): | |
| ADD_LIBRARY called with SHARED option but the target platform does not | |
| support dynamic linking. Building a STATIC library instead. This may lead | |
| to problems. | |
| This warning is for project developers. Use -Wno-dev to suppress it. | |
| -- Configuring done (4.4s) |
8Observer8
/ main.c
Created
November 23, 2024 12:52
Play sound effect my mouse click using SDL3_mixer and C
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| /* | |
| * This example code $WHAT_IT_DOES. | |
| * | |
| * This code is public domain. Feel free to use it for any purpose! | |
| */ | |
| #define SDL_MAIN_USE_CALLBACKS 1 /* use the callbacks instead of main() */ | |
| #include <SDL3/SDL.h> | |
| #include <SDL3/SDL_main.h> | |
| #include <SDL3_mixer/SDL_mixer.h> |
8Observer8
/ main.c
Created
November 19, 2024 13:30
A problem with float numbers using Box2D v3.1 in C and SDL3
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| #define SDL_MAIN_USE_CALLBACKS 1 // Use callbacks instead of main() | |
| #include <SDL3/SDL.h> | |
| #include <SDL3/SDL_main.h> | |
| #include <box2d/box2d.h> | |
| #include <math.h> | |
| static SDL_Window *window = NULL; | |
| static SDL_Renderer *renderer = NULL; | |
| b2WorldId worldId; // Physical world identifier |
8Observer8
/ log.txt
Created
November 15, 2024 14:27
Log file of building Qt Creator 14.0.2 for the message: https://forum.qt.io/post/814789
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| E:\Temp\qt-creator-14.0.2\build>cmake --build . -j4 | |
| [ 0%] [ 0%] Automatic MOC and UIC for target QtCreatorPchGuiAutomatic MOC and UIC for target 3rd_cplusplus | |
| [ 0%] Automatic MOC and UIC for target QtCreatorPchConsole[ 0%] | |
| Copy data/syntax/ into build directory | |
| [ 0%] Built target QtCreatorPchGui_autogen | |
| [ 0%] Built target QtCreatorPchConsole_autogen | |
| [ 0%] Built target copy_generic_highligher_to_builddir | |
| [ 0%] Built target 3rd_cplusplus_autogen | |
| [ 0%] Automatic MOC and UIC for target libvterm |
8Observer8
/ debug_drawer.cpp
Created
November 13, 2024 19:32
The debug drawer for Bullet Physics using the line drawer
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| #include "debug_drawer.h" | |
| DebugDrawer::DebugDrawer(GLuint program, btDynamicsWorld *world, | |
| const glm::mat4 &projViewMatrix, float thickness) | |
| : m_world(world) | |
| , m_thickness(thickness) | |
| { | |
| m_lineDrawer = new LineDrawer(program, projViewMatrix); | |
| } |
8Observer8
/ line_drawer.cpp
Created
November 13, 2024 01:19
Line drawer in 3D to draw Bullet Physics colliders and rays using SDL3 and OpenGL for Desktop and WebAssembly
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| #include <cmath> | |
| #include "line_drawer.h" | |
| #include "math_helper.h" | |
| #include <iostream> | |
| LineDrawer::LineDrawer(GLuint program, const glm::mat4 &projViewMatrix) | |
| : m_program(program) | |
| , m_projViewMatrix(projViewMatrix) |
8Observer8
/ CMakeLists.txt
Last active
October 10, 2024 10:24
Set a background color using OpenGL, SDL3, and C++
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| # mkdir dist\win | |
| # cmake -G "MinGW Makefiles" -S . -B dist/win -DSDL3_DIR=E:/libs/sdl3-desktop-prefix/lib/cmake/SDL3 | |
| # cmake -G "MinGW Makefiles" -S . -B dist/win -DSDL3_DIR=E:/libs/sdl3-libs/SDL3-devel-3.1.3-mingw/SDL3-3.1.3/x86_64-w64-mingw32/lib/cmake/SDL3 | |
| # cd dist/win | |
| # mingw32-make | |
| # app | |
| cmake_minimum_required(VERSION 3.20) | |
| project(background_color_opengl_sdl3_cpp) |
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