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Physics Debug Draw

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This commit is contained in:
Isuru Samarathunga
2025-09-29 14:53:06 +05:30
parent b18bfe873f
commit 9269306146
7 changed files with 54 additions and 86 deletions
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29
Src/IAEngine/imp/cpp/Physics/Physics.cpp
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@ -16,6 +16,7 @@
#include <IAEngine/IAEngine.hpp>
#include <IAEngine/Physics/Physics.hpp>
#include <IAEngine/Rendering/DebugDraw.hpp>
#include <IAEngine/Nodes/Node.hpp>
@ -23,6 +24,8 @@
namespace ia::iae
{
BOOL g_physicsDebugDrawEnabled = false;
Vector<PhysicsComponent *> g_physicsComponents;
FLOAT32 Sq(IN FLOAT32 v)
@ -45,7 +48,7 @@ namespace ia::iae
const auto dY = abs(d.y);
if (d.x >= 0)
{
if (dX >= dY)
if (dX > dY)
{
return RectSide::RIGHT;
}
@ -56,7 +59,7 @@ namespace ia::iae
}
else
{
if (dX >= dY)
if (dX > dY)
{
return RectSide::LEFT;
}
@ -80,6 +83,23 @@ namespace ia::iae
{
}
VOID Physics::DebugDraw()
{
if(!g_physicsDebugDrawEnabled)
return;
for(const auto& t: g_physicsComponents)
{
for(const auto& c: t->Colliders())
{
auto color = glm::vec4{0.75f, 0.0f, 0.0f, 1.0f};
if(c.IsTrigger)
color = {0.25f, 0.45f, 0.75f, 0.75f};
DebugDraw::DrawRect(t->GetNode()->GetPosition() + c.Position, c.Size, color, 2.0f);
}
}
}
Handle Physics::RegisterComponent(IN PhysicsComponent *component)
{
g_physicsComponents.pushBack(component);
@ -101,17 +121,16 @@ namespace ia::iae
const auto tMiddle = t->GetNode()->GetPosition() + tc.Position + tc.Size / 2.0f;
const auto tHalfSize = tc.Size / 2.0f;
const auto rectSide = GetRectSide(tMiddle - middle);
const auto distance = Sq(tMiddle.x - middle.x) + Sq(tMiddle.y - middle.y);
switch (rectSide)
{
case RectSide::LEFT:
case RectSide::RIGHT:
isColliding = (Sq(tHalfSize.x + halfSize.x) >= distance);
isColliding = ((tHalfSize.x + halfSize.x) >= abs(tMiddle.x - middle.x));
break;
case RectSide::TOP:
case RectSide::BOTTOM:
isColliding = (Sq(tHalfSize.y + halfSize.y) >= distance);
isColliding = ((tHalfSize.y + halfSize.y) >= abs(tMiddle.y - middle.y));
break;
default: