christoph/cpp-masssprings
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squash merge threaded-physics into main

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Christoph Urlacher
2026-02-24 18:45:13 +01:00
parent 3e87bbb6a5
commit 8a4e5c1ebf
15 changed files with 553 additions and 466 deletions
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25
include/config.hpp
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@ -3,7 +3,6 @@
#include <raylib.h>
#define BARNES_HUT // Use octree BH instead of uniform grid
// #define WEB // Disables multithreading
// Window
@ -30,19 +29,17 @@ constexpr float ROT_SPEED = 1.0;
constexpr float CAMERA_SMOOTH_SPEED = 15.0;
// Physics Engine
constexpr float SIM_SPEED = 4.0; // How large each update should be
constexpr float TIMESTEP = 1.0 / 90; // Do 90 physics updates per second
constexpr float MASS = 1.0; // Mass spring system
constexpr float SPRING_CONSTANT = 5.0; // Mass spring system
constexpr float DAMPENING_CONSTANT = 1.0; // Mass spring system
constexpr float REST_LENGTH = 2.0; // Mass spring system
constexpr float VERLET_DAMPENING = 0.05; // [0, 1]
constexpr float BH_FORCE = 2.0; // BH: [1.0, 3.0]
constexpr float THETA = 1.0; // Barnes-Hut [0.5, 1.0]
constexpr float SOFTENING = 0.01; // Barnes-Hut [0.01, 1.0]
constexpr float GRID_FORCE = 0.02; // Grid: [0.0, ~0.05]
constexpr float REPULSION_RANGE = 5.0 * REST_LENGTH; // Grid
constexpr int REPULSION_GRID_REFRESH = 5; // Grid rebuild freq
constexpr float TARGET_UPS = 90; // How often to update physics
constexpr float TIMESTEP = 1.0 / TARGET_UPS; // Update interval in seconds
constexpr float SIM_SPEED = 4.0; // How large each update should be
constexpr float MASS = 1.0; // Mass spring system
constexpr float SPRING_CONSTANT = 5.0; // Mass spring system
constexpr float DAMPENING_CONSTANT = 1.0; // Mass spring system
constexpr float REST_LENGTH = 2.0; // Mass spring system
constexpr float VERLET_DAMPENING = 0.05; // [0, 1]
constexpr float BH_FORCE = 2.0; // Barnes-Hut [1.0, 3.0]
constexpr float THETA = 0.9; // Barnes-Hut [0.5, 1.0]
constexpr float SOFTENING = 0.01; // Barnes-Hut [0.01, 1.0]
// Graph Drawing
constexpr float VERTEX_SIZE = 0.5;