| 1 | /** |
| 2 | * Copyright (c) 2006-2023 LOVE Development Team |
| 3 | * |
| 4 | * This software is provided 'as-is', without any express or implied |
| 5 | * warranty. In no event will the authors be held liable for any damages |
| 6 | * arising from the use of this software. |
| 7 | * |
| 8 | * Permission is granted to anyone to use this software for any purpose, |
| 9 | * including commercial applications, and to alter it and redistribute it |
| 10 | * freely, subject to the following restrictions: |
| 11 | * |
| 12 | * 1. The origin of this software must not be misrepresented; you must not |
| 13 | * claim that you wrote the original software. If you use this software |
| 14 | * in a product, an acknowledgment in the product documentation would be |
| 15 | * appreciated but is not required. |
| 16 | * 2. Altered source versions must be plainly marked as such, and must not be |
| 17 | * misrepresented as being the original software. |
| 18 | * 3. This notice may not be removed or altered from any source distribution. |
| 19 | **/ |
| 20 | |
| 21 | #include "DistanceJoint.h" |
| 22 | |
| 23 | // Module |
| 24 | #include "Body.h" |
| 25 | #include "World.h" |
| 26 | #include "Physics.h" |
| 27 | |
| 28 | namespace love |
| 29 | { |
| 30 | namespace physics |
| 31 | { |
| 32 | namespace box2d |
| 33 | { |
| 34 | |
| 35 | DistanceJoint::DistanceJoint(Body *body1, Body *body2, float x1, float y1, float x2, float y2, bool collideConnected) |
| 36 | : Joint(body1, body2) |
| 37 | , joint(NULL) |
| 38 | { |
| 39 | b2DistanceJointDef def; |
| 40 | def.Initialize(body1->body, body2->body, Physics::scaleDown(b2Vec2(x1,y1)), Physics::scaleDown(b2Vec2(x2,y2))); |
| 41 | def.collideConnected = collideConnected; |
| 42 | joint = (b2DistanceJoint *)createJoint(&def); |
| 43 | } |
| 44 | |
| 45 | DistanceJoint::~DistanceJoint() |
| 46 | { |
| 47 | } |
| 48 | |
| 49 | void DistanceJoint::setLength(float length) |
| 50 | { |
| 51 | joint->SetLength(Physics::scaleDown(length)); |
| 52 | } |
| 53 | |
| 54 | float DistanceJoint::getLength() const |
| 55 | { |
| 56 | return Physics::scaleUp(joint->GetLength()); |
| 57 | } |
| 58 | |
| 59 | void DistanceJoint::setFrequency(float hz) |
| 60 | { |
| 61 | joint->SetFrequency(hz); |
| 62 | } |
| 63 | |
| 64 | float DistanceJoint::getFrequency() const |
| 65 | { |
| 66 | return joint->GetFrequency(); |
| 67 | } |
| 68 | |
| 69 | void DistanceJoint::setDampingRatio(float d) |
| 70 | { |
| 71 | joint->SetDampingRatio(d); |
| 72 | } |
| 73 | |
| 74 | float DistanceJoint::getDampingRatio() const |
| 75 | { |
| 76 | return joint->GetDampingRatio(); |
| 77 | } |
| 78 | |
| 79 | |
| 80 | } // box2d |
| 81 | } // physics |
| 82 | } // love |
| 83 | |