public void BasicScaleTest() {
var t = new Transform() {
scaleX = 2,
scaleY = 1.5f
};
Assert.AreEqual(2, t.renderScale.X);
Assert.AreEqual(1.5f, t.renderScale.Y);
}
public void BasicRotationIsCorrect()
{
var t = new Transform() {
angle = (float)Math.PI / 2
};
// Have to round due to rounding in Matrices
Assert.AreEqual(Math.Round(Math.PI / 2, 4), Math.Round(t.renderRotation, 4));
}
public void BasicPositionIsCorrect ()
{
var t = new Transform() {
x = 12,
y = 16
};
Assert.AreEqual(12, t.renderPosition.X);
Assert.AreEqual(16, t.renderPosition.Y);
}
public void SimpleParentRotationTest() {
var t = new Transform() {
angle = (float)Math.PI / 2
};
var parent = new Transform() {
angle = (float)Math.PI / 2
};
t.parent = parent;
Assert.AreEqual(Math.Round(Math.PI, 4), Math.Round(t.renderRotation, 4));
}
public void ParentScaleTest() {
var t = new Transform() {
scaleX = 2,
scaleY = 2
};
var parent = new Transform() {
scaleX = 1.5f,
scaleY = 0.75f
};
t.parent = parent;
Assert.AreEqual(t.scaleX * parent.scaleX, t.renderScale.X);
Assert.AreEqual(t.scaleY * parent.scaleY, t.renderScale.Y);
}
public void ParentPositionTest() {
var t = new Transform() {
x = 12,
y = 16
};
var parent = new Transform() {
x = 18,
y = 24
};
t.parent = parent;
Assert.AreEqual(t.x + parent.x, t.renderPosition.X);
Assert.AreEqual(t.y + parent.y, t.renderPosition.Y);
}
public void PositionRotationTest() {
var t = new Transform() {
x = 0,
y = 5
};
var parent = new Transform() {
angle = (float)Math.PI / 2
};
t.parent = parent;
Assert.AreEqual(-5, Math.Round(t.renderPosition.X));
Assert.AreEqual(0, Math.Round(t.renderPosition.Y));
}
public void CombinedTest() {
var t = new Transform() {
x = 0,
y = 5,
angle = (float)Math.PI / 2,
scaleX = 2,
scaleY = 0.5f,
origin = new Microsoft.Xna.Framework.Vector2(32, 32)
};
var parent = new Transform() {
angle = (float)Math.PI / 2,
x = 32,
y = 64,
scaleX = 0.5f,
scaleY = 2,
origin = new Microsoft.Xna.Framework.Vector2(16, 16)
};
t.parent = parent;
Assert.AreEqual(22, Math.Round(t.renderPosition.X));
Assert.AreEqual(64, Math.Round(t.renderPosition.Y));
Assert.AreEqual(Math.Round(Math.PI, 4), Math.Round(t.renderRotation, 4));
Assert.AreEqual(4, Math.Round(t.renderScale.X));
Assert.AreEqual(0.25, Math.Round(t.renderScale.Y, 2));
}
public void OriginPositionRotationTest() {
var t = new Transform() {
x = 0,
y = 5,
origin = new Microsoft.Xna.Framework.Vector2(32, 32)
};
var parent = new Transform() {
angle = (float)Math.PI / 2
};
t.parent = parent;
Assert.AreEqual(-5, Math.Round(t.renderPosition.X));
Assert.AreEqual(0, Math.Round(t.renderPosition.Y));
}
