void GameObject::recalcExtens()
{
assert(m_size.x >= 0.0f);
assert(m_size.y >= 0.0f);
m_topLeft.x = m_offset.x + m_position.x - (getSizeInTiles().x*0.5f);
m_topLeft.y = m_offset.y + m_position.y - (getSizeInTiles().y*0.5f);
m_bottomRight.x = m_offset.x + m_position.x + (getSizeInTiles().x*0.5f);
m_bottomRight.y = m_offset.y + m_position.y + (getSizeInTiles().y*0.5f);
}
bool GameObject::collidesTo( GameObject* other, vec2* collisionNormalLikeVector )
{
assert( other != 0 );
vec2 d1 = other->m_topLeft - m_bottomRight;
vec2 d2 = m_topLeft - other->m_bottomRight;
if( d1.x > 0.0f || d1.y > 0.0f || d2.x > 0.0f || d2.y > 0.0f )
{
return false;
}
if (collisionNormalLikeVector != 0)
{
vec2 sthis = getSizeInTiles();
vec2 so = other->getSizeInTiles();
vec2 d = d2 - d1;
d.x /= sthis.x + so.x;
d.y /= sthis.y + so.y;
*collisionNormalLikeVector = d;
}
return true;
}
BoundingBox World::getBoundingBox() const {
const Int2 tileSize = getSizeInTiles();
return BoundingBox(
GLFloatVec2(0.0f, 0.0f),
GLFloatVec2(static_cast< GLfloat >(tileSize.x), static_cast< GLfloat >(tileSize.y))
);
}
