public function DrawLine(ALiVE_2D_Vector $a, ALiVE_2D_Vector $b, ALiVE_Colour $colour)
{
for ($tween = 0; $tween < 1; $tween += 0.09) {
$x = ALiVE_Tween($a->X(), $b->X(), $tween);
$y = ALiVE_Tween($a->Y(), $b->Y(), $tween);
if (isset($prevx) && isset($prevy)) {
$v = new ALiVE_2D_Vector($x, $y);
if ($x - $prevx < 0.01) {
$this->FillPoint($v, '|');
} else {
if ($y - $prevy < 0.01) {
$this->FillPoint($v, '_');
} else {
if ($y - $prevy - $x + $prevx < 0.01) {
$this->FillPoint($v, '\\');
} else {
if ($y - $prevy + $x - $prevx < 0.01) {
$this->FillPoint($v, '/');
} else {
$this->FillPoint($v, '.');
}
}
}
}
}
$prevx = $x;
$prevy = $y;
}
}
private function TransformPoint(ALiVE_2D_Vector $point)
{
// 0 W-1
// . . . . .
//-1 0 +1
// (W - 1) / 2 + x * ((W - 1) / 2)
$x = ($this->mWidth - 1) / 2 + $point->X() * (($this->mWidth - 1) / 2);
$y = ($this->mHeight - 1) / 2 + $point->Y() * (($this->mHeight - 1) / 2);
return new ALiVE_2D_Vector($x, $y);
}
