constants.h

// SPDX-FileCopyrightText: 2026 Erin Catto
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include "math_functions.h"


#if defined( BOX2D_DOUBLE_PRECISION )
#define B2_HUGE ( ( 100000.0f * 1000.0f ) * b2_lengthUnitsPerMeter )
#else
#define B2_HUGE ( ( 100.0f * 1000.0f ) * b2_lengthUnitsPerMeter )
#endif

#define B2_MAX_WORKERS 32

#define B2_MAX_TASKS 256

#define B2_GRAPH_COLOR_COUNT 24

#define B2_LINEAR_SLOP ( 0.005f * b2_lengthUnitsPerMeter )

#ifndef B2_MAX_WORLDS
#define B2_MAX_WORLDS 128
#endif

#ifndef B2_NAME_LENGTH
#define B2_NAME_LENGTH 10
#endif

#define B2_MAX_ROTATION ( 0.25f * B2_PI )

#define B2_SPECULATIVE_DISTANCE ( 4.0f * B2_LINEAR_SLOP )

#define B2_CONTACT_RECYCLE_DISTANCE ( 10.0f * B2_LINEAR_SLOP )

#define B2_CONTACT_RECYCLE_COS_ANGLE ( 0.98f )

#define B2_MAX_AABB_MARGIN ( 0.05f * b2_lengthUnitsPerMeter )

#define B2_AABB_MARGIN_FRACTION 0.125f

#define B2_TIME_TO_SLEEP 0.5f

#define B2_MAX_RESTITUTION_ITERATIONS 63