private void timerSequenceOfFractals_Tick(object sender, EventArgs e)
{
if (!States.Any()) // if no states selected from file, return
{
return;
}
trackBarSequenceOfFractals.Maximum = timerSequenceOfFractals.Enabled ? States.Count - 1 : 0; // set trackbar levels to amount of selected files
ticks++; // increment ticks each time timer called
if (ticks > States.Count - 1) // if ticks exceeds the list count, set it back to zero
{
ticks = 0;
}
trackBarSequenceOfFractals.Value = ticks; // set slider to current list index
currentState = States[ticks]; // get single state from list
xstart = currentState.Xstart;
ystart = currentState.Ystart;
xzoom = currentState.Xzoom;
yzoom = currentState.Yzoom;
j = currentState.J;
Mandelbrot(); // draw selected state from list
Refresh();
}
private void trackBarSequenceOfFractals_Scroll(object sender, EventArgs e)
{
currentState = States[trackBarSequenceOfFractals.Value]; // take trackbar index and redraw the correct bitmap from list using this value
xstart = currentState.Xstart;
ystart = currentState.Ystart;
xzoom = currentState.Xzoom;
yzoom = currentState.Yzoom;
j = currentState.J;
Mandelbrot(); // redraw selected bitmap
Refresh();
}
public void AnimateStates()
{
for (int i = 0; i < States.Count; i++) // loop through all loaded states
{
currentState = States[i]; // get single state from list
xstart = currentState.Xstart;
ystart = currentState.Ystart;
xzoom = currentState.Xzoom;
yzoom = currentState.Yzoom;
j = currentState.J;
Mandelbrot(); // draw first state in list
Refresh();
if (States.ElementAtOrDefault(i + 1) != null) // if state exists in list after current state
{
nextState = States[i + 1]; // store the next state in the list
if (currentState.Xstart < nextState.Xstart && // current state vales lower than next state?
currentState.Ystart < nextState.Ystart &&
currentState.Xzoom > nextState.Xzoom &&
currentState.Yzoom > nextState.Yzoom
)
{
while (
currentState.Xstart <= nextState.Xstart && // yes - increase values and animate in
currentState.Ystart <= nextState.Ystart && // and draw sequences between current and next states
currentState.Xzoom >= nextState.Xzoom &&
currentState.Yzoom >= nextState.Yzoom)
{
// calculate difference between states and divide by four
// this value will be used to increment current state values until they exceed the next state values
// added 0.0001 to ensure they exceed
if (currentState.Xstart <= nextState.Xstart)
{
var difference = (nextState.Xstart - currentState.Xstart) / 4 + 0.00001;
currentState.Xstart += difference;
}
if (currentState.Ystart <= nextState.Ystart)
{
var difference = (nextState.Ystart - currentState.Ystart) / 4 + 0.00001;
currentState.Ystart += difference;
}
if (currentState.Xzoom >= nextState.Xzoom)
{
var difference = (currentState.Xzoom - nextState.Xzoom) / 4 + 0.000001;
currentState.Xzoom -= difference;
}
if (currentState.Yzoom >= nextState.Yzoom)
{
var difference = (currentState.Yzoom - nextState.Yzoom) / 4 + 0.000001;
currentState.Yzoom -= difference;
}
// each time the current state is changed, redraw using its values
xstart = currentState.Xstart;
ystart = currentState.Ystart;
xzoom = currentState.Xzoom;
yzoom = currentState.Yzoom;
this.Mandelbrot();
this.Refresh();
}
}
else // current state vales higher than next state - decreate values and animate out
{
while (
currentState.Xstart >= nextState.Xstart &&
currentState.Ystart >= nextState.Ystart &&
currentState.Xzoom <= nextState.Xzoom &&
currentState.Yzoom <= nextState.Yzoom)
{
if (currentState.Xstart >= nextState.Xstart)
{
var difference = (currentState.Xstart - nextState.Xstart) / 4 + 0.00001;
currentState.Xstart -= difference;
}
if (currentState.Ystart >= nextState.Ystart)
{
var difference = (currentState.Ystart - nextState.Ystart) / 4 + 0.00001;
currentState.Ystart -= difference;
}
if (currentState.Xzoom <= nextState.Xzoom)
{
var difference = (nextState.Xzoom - currentState.Xzoom) / 4 + 0.000001;
currentState.Xzoom += difference;
}
if (currentState.Yzoom <= nextState.Yzoom)
{
var difference = (nextState.Yzoom - currentState.Yzoom) / 4 + 0.000001;
currentState.Yzoom += difference;
}
// each time the current state is changed, redraw using its values
xstart = currentState.Xstart;
ystart = currentState.Ystart;
xzoom = currentState.Xzoom;
yzoom = currentState.Yzoom;
this.Mandelbrot();
this.Refresh();
}
}
}
}
}