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actor.cpp
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actor.cpp
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#include "actor.h"
Actor::Actor(b2World *world)
: CollisionObject(world)
, sptActor()
, fLastX(0.0f)
, fLastY(0.0f)
, fGravityModifier(0.0f)
, bInvertAxis(FALSE)
, bEnableWeight(FALSE)
, vDir()
, vController()
{
pScene->Add(this);
}
Actor::~Actor()
{
pScene->Remove(this);
}
void Actor::Update(f32 dt)
{
Point2f vThrust;
vThrust.x = bInvertAxis ? -vController.x : vController.x;
if (bEnableWeight)
vThrust.x = 0;
vThrust.y = vController.y;
f32 fThrustX = (THRUST_POWER_X + fGravityModifier) * dt;
f32 fThrustY = (THRUST_POWER_Y + fGravityModifier) * dt;
vThrust.x *= fThrustX;
vThrust.y *= fThrustY;
if (body)
{
vThrust.x /= PIXEL2METER;
vThrust.y /= PIXEL2METER;
body->ApplyLinearImpulse(b2Vec2(vThrust.x, vThrust.y), b2Vec2(0.0f, 0.0f));
}
bool updateBodyX = false;
bool updateBodyY = false;
f32 distanceY = 1.0f / pScreen->GetHeight();
if (sptActor.GetX() + sptActor.GetWidth() > 1.0f)
{
sptActor.SetX(1.0f - sptActor.GetWidth());
updateBodyX = true;
}
if (sptActor.GetX() < 0)
{
sptActor.SetX(0.0f);
updateBodyX = true;
}
if (sptActor.GetY() + sptActor.GetHeight() > 1.0f)
{
sptActor.SetY(1.0f - distanceY);
updateBodyY = true;
}
if (sptActor.GetY() < 0)
{
sptActor.SetY(sptActor.GetHeight());
updateBodyY = true;
}
if (body && (updateBodyX || updateBodyY))
{
f32 sizeX = pScreen->GetWidth() * PIXEL2METER;
f32 sizeY = pScreen->GetHeight() * PIXEL2METER;
f32 b2x = sptActor.GetX() * pScreen->GetWidth() / sizeX;
f32 b2y = -(sptActor.GetY() * pScreen->GetHeight() / sizeY);
f32 b2w = sptActor.GetWidth() * pScreen->GetWidth() / sizeX;
f32 b2h = sptActor.GetHeight() * pScreen->GetHeight() / sizeY;
f32 x = updateBodyX ? b2x + b2w * 0.5f : body->GetPosition().x;
f32 y = updateBodyY ? b2y + b2h * 0.5f : body->GetPosition().y;
body->SetTransform(b2Vec2(x, y), body->GetAngle());
body->SetLinearVelocity(b2Vec2(0.0f, 0.0f));
}
}
Sprite &Actor::GetSprite()
{
return sptActor;
}
void Actor::SetInvertedAxis(BOOL b)
{
bInvertAxis = b;
}
void Actor::SetGravityModifier(f32 mod)
{
fGravityModifier = mod;
}
void Actor::SetHeavy(BOOL b)
{
bEnableWeight = b;
}