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Fixed various Physics bugs #217

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direnbharwani merged 14 commits from SP3-2-Physics into main 2022-11-17 17:13:02 +08:00
Conversation 0 Commits 14 Files Changed 17 +62 -36
4 changed files with 62 additions and 36 deletions
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2
SHADE_Engine/src/Math/Geometry/SHBox.cpp
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@ -1,5 +1,5 @@
/****************************************************************************************
* \file SHBoundingBox.cpp
* \file SHBox.cpp
* \author Diren D Bharwani, diren.dbharwani, 390002520
* \brief Implementation for a 3-Dimensional Axis Aligned Bounding Box
*

2
SHADE_Engine/src/Math/Geometry/SHBox.h
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@ -1,5 +1,5 @@
/****************************************************************************************
* \file SHBoundingBox.h
* \file SHBox.h
* \author Diren D Bharwani, diren.dbharwani, 390002520
* \brief Interface for a 3-Dimensional Axis Aligned Bounding Box
*

57
SHADE_Engine/src/Physics/System/SHPhysicsDebugDrawSystem.cpp
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@ -24,7 +24,7 @@ namespace SHADE
/* Static Data Member Definitions */
/*-----------------------------------------------------------------------------------*/
const SHPhysicsDebugDrawSystem::DebugDrawFunction SHPhysicsDebugDrawSystem::drawFunctions[SHPhysicsDebugDrawSystem::NUM_FLAGS] =
const SHPhysicsDebugDrawSystem::DebugDrawFunction SHPhysicsDebugDrawSystem::drawFunctions[NUM_FLAGS] =
{
SHPhysicsDebugDrawSystem::drawColliders
, SHPhysicsDebugDrawSystem::drawColliderAABBs
@ -33,6 +33,8 @@ namespace SHADE
, SHPhysicsDebugDrawSystem::drawContactNormals
};
SHVec3 SHPhysicsDebugDrawSystem::boxVertices[NUM_BOX_VERTICES];
/*-----------------------------------------------------------------------------------*/
/* Constructors & Destructor Definitions */
/*-----------------------------------------------------------------------------------*/
@ -42,7 +44,7 @@ namespace SHADE
, physicsSystem { nullptr }
, rp3dDebugRenderer { nullptr }
{
debugColours[SHUtilities::ConvertEnum(DebugDrawFlags::COLLIDER)] =
debugColours[SHUtilities::ConvertEnum(DebugDrawFlags::COLLIDER)] = SHColour::GREEN;
debugColours[SHUtilities::ConvertEnum(DebugDrawFlags::COLLIDER_AABB)] = SHColour::YELLOW;
debugColours[SHUtilities::ConvertEnum(DebugDrawFlags::BROAD_PHASE_AABB)] = SHColour::CYAN;
debugColours[SHUtilities::ConvertEnum(DebugDrawFlags::CONTACT_POINTS)] = SHColour::RED;
@ -95,6 +97,9 @@ namespace SHADE
SHASSERT(physicsSystem == nullptr, "Non-existent physics system attached to the physics debug draw system!")
physicsSystem = SHSystemManager::GetSystem<SHPhysicsSystem>();
// Generate shapes
generateBox();
}
void SHPhysicsDebugDrawSystem::Exit()
@ -159,21 +164,20 @@ namespace SHADE
}
void SHPhysicsDebugDrawSystem::generateBox() noexcept
{
boxVertices[0] = { 0.5f, 0.5f, -0.5f }; // TOP_RIGHT_BACK
boxVertices[1] = { -0.5f, 0.5f, -0.5f }; // TOP_LEFT_BACK
boxVertices[2] = { 0.5f, -0.5f, -0.5f }; // BTM_RIGHT_BACK
boxVertices[3] = { -0.5f, -0.5f, -0.5f }; // BTM_LEFT_BACK
boxVertices[4] = { 0.5f, 0.5f, 0.5f }; // TOP_RIGHT_FRONT
boxVertices[5] = { -0.5f, 0.5f, 0.5f }; // TOP_LEFT_FRONT
boxVertices[6] = { 0.5f, -0.5f, 0.5f }; // BTM_RIGHT_FRONT
boxVertices[7] = { -0.5f, -0.5f, 0.5f }; // BTM_LEFT_FRONT
}
void SHPhysicsDebugDrawSystem::debugDrawBox(const SHColliderComponent& colliderComponent, const SHCollisionShape& collisionShape) noexcept
{
static constexpr uint32_t NUM_BOX_VERTICES = 8;
static const SHVec3 boxVertices[NUM_BOX_VERTICES]
{
{ 0.5f, 0.5f, -0.5f } // TOP_RIGHT_BACK
, { -0.5f, 0.5f, -0.5f } // TOP_LEFT_BACK
, { 0.5f, -0.5f, -0.5f } // BTM_RIGHT_BACK
, { -0.5f, -0.5f, -0.5f } // BTM_LEFT_BACK
, { 0.5f, 0.5f, 0.5f } // TOP_RIGHT_FRONT
, { -0.5f, 0.5f, 0.5f } // TOP_LEFT_FRONT
, { 0.5f, -0.5f, 0.5f } // BTM_RIGHT_FRONT
, { -0.5f, -0.5f, 0.5f } // BTM_LEFT_FRONT
};
auto* debugDrawSystem = SHSystemManager::GetSystem<SHDebugDrawSystem>();
if (debugDrawSystem == nullptr)
{
@ -184,10 +188,16 @@ namespace SHADE
auto* BOX = reinterpret_cast<const SHBox*>(collisionShape.GetShape());
// Calculate final position & orientation
const SHVec3 FINAL_POS = colliderComponent.GetPosition() + collisionShape.GetPositionOffset();
const SHQuaternion FINAL_ROT = colliderComponent.GetOrientation() * SHQuaternion::FromEuler(collisionShape.GetRotationOffset());
const SHVec3 COLLIDER_POS = colliderComponent.GetPosition();
const SHVec3 BOX_POS = collisionShape.GetPositionOffset();
const SHQuaternion COLLIDER_ROT = colliderComponent.GetOrientation();
const SHQuaternion BOX_ROT = SHQuaternion::FromEuler(collisionShape.GetRotationOffset());
const SHMatrix BOX_TRS = SHMatrix::Scale(BOX->GetWorldExtents() * 2.0f) * SHMatrix::Rotate(FINAL_ROT) * SHMatrix::Translate(FINAL_POS);
const SHMatrix COLLIDER_TR = SHMatrix::Rotate(COLLIDER_ROT) * SHMatrix::Translate(COLLIDER_POS);
const SHMatrix BOX_TRS = SHMatrix::Scale(BOX->GetWorldExtents() * 2.0f) * SHMatrix::Rotate(BOX_ROT) * SHMatrix::Translate(BOX_POS);
const SHMatrix FINAL_TRS = BOX_TRS * COLLIDER_TR;
const SHColour COLLIDER_COLOUR = collisionShape.IsTrigger() ? SHColour::PURPLE : SHColour::GREEN;
@ -197,8 +207,8 @@ namespace SHADE
const uint32_t IDX1 = i;
const uint32_t IDX2 = i + NUM_BOX_VERTICES / 2;
transformedVertices[IDX1] = SHVec3::Transform(boxVertices[IDX1], BOX_TRS);
transformedVertices[IDX2] = SHVec3::Transform(boxVertices[IDX2], BOX_TRS);
transformedVertices[IDX1] = SHVec3::Transform(boxVertices[IDX1], FINAL_TRS);
transformedVertices[IDX2] = SHVec3::Transform(boxVertices[IDX2], FINAL_TRS);
// Draw 4 line to connect the quads
debugDrawSystem->DrawLine(COLLIDER_COLOUR, transformedVertices[IDX1], transformedVertices[IDX2]);
@ -207,6 +217,7 @@ namespace SHADE
// A, B, C, D
std::array backQuad { transformedVertices[0], transformedVertices[1], transformedVertices[3], transformedVertices[2] };
debugDrawSystem->DrawPoly(COLLIDER_COLOUR, backQuad.begin(), backQuad.end());
// E, F, G, H
std::array frontQuad { transformedVertices[4], transformedVertices[5], transformedVertices[7], transformedVertices[6] };
debugDrawSystem->DrawPoly(COLLIDER_COLOUR, frontQuad.begin(), frontQuad.end());
@ -226,8 +237,10 @@ namespace SHADE
const SHColour COLLIDER_COLOUR = collisionShape.IsTrigger() ? SHColour::PURPLE : SHColour::GREEN;
// Calculate final position & orientation
const SHVec3 FINAL_POS = colliderComponent.GetPosition() + collisionShape.GetPositionOffset();
debugDrawSystem->DrawSphere(COLLIDER_COLOUR, FINAL_POS, SPHERE->GetWorldRadius());
const SHQuaternion FINAL_ROT = colliderComponent.GetOrientation() * SHQuaternion::FromEuler(collisionShape.GetRotationOffset());
const SHMatrix TR = SHMatrix::Rotate(FINAL_ROT) * SHMatrix::Translate(colliderComponent.GetPosition());
debugDrawSystem->DrawSphere(COLLIDER_COLOUR, SHVec3::Transform(collisionShape.GetPositionOffset(), TR), SPHERE->GetWorldRadius());
}
} // namespace SHADE

15
SHADE_Engine/src/Physics/System/SHPhysicsDebugDrawSystem.h
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@ -98,9 +98,14 @@ namespace SHADE
/*---------------------------------------------------------------------------------*/
static constexpr int NUM_FLAGS = SHUtilities::ConvertEnum(DebugDrawFlags::NUM_FLAGS);
static const DebugDrawFunction drawFunctions[NUM_FLAGS];
// SHAPES INFO
static constexpr size_t NUM_BOX_VERTICES = 8;
static SHVec3 boxVertices[NUM_BOX_VERTICES];
uint8_t debugDrawFlags;
SHPhysicsSystem* physicsSystem;
rp3d::DebugRenderer* rp3dDebugRenderer;
@ -110,12 +115,20 @@ namespace SHADE
/* Function Members */
/*---------------------------------------------------------------------------------*/
// Generic Draw Functions
static void drawColliders (rp3d::DebugRenderer* debugRenderer) noexcept;
static void drawColliderAABBs (rp3d::DebugRenderer* debugRenderer) noexcept;
static void drawBroadPhaseAABBs (rp3d::DebugRenderer* debugRenderer) noexcept;
static void drawContactPoints (rp3d::DebugRenderer* debugRenderer) noexcept;
static void drawContactNormals (rp3d::DebugRenderer* debugRenderer) noexcept;
// Shape Generation Functions
static void generateBox () noexcept;
// Shape Draw Functions
static void debugDrawBox (const SHColliderComponent& colliderComponent, const SHCollisionShape& collisionShape) noexcept;
static void debugDrawSphere (const SHColliderComponent& colliderComponent, const SHCollisionShape& collisionShape) noexcept;
};