142 lines
3.0 KiB
Plaintext
142 lines
3.0 KiB
Plaintext
/***********************************************************************
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zoomWidget.script
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***********************************************************************/
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object zoomWidget {
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void destroy();
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void Init( entity other );
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void Enable();
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void Disable();
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float GetZoomState();
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float GetNumZoomStates();
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float GetZoomFov( float indexValue );
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// cycle the zoom levels one by one
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void Cycle();
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// zoom in or zoom out by 1/4 levels of zoom
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void Zoom( float delta );
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void ZoomIn();
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void ZoomOut();
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float numZoomStates;
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float zoomTime;
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float currentZoomState;
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boolean enabled;
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entity owner;
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boolean IsFullyZoomedIn() { return currentZoomState == numZoomStates - 1; }
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boolean IsFullyZoomedOut() { return currentZoomState == 0.0f; }
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boolean IsEnabled() { return enabled; }
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};
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void zoomWidget::destroy() {
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Disable();
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}
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void zoomWidget::Init( entity other ) {
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owner = other;
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numZoomStates = other.getIntKey( "num_zoom_levels" );
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zoomTime = other.getFloatKeyWithDefault( "zoom_time", 0.5f );
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}
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float zoomWidget::GetZoomState() {
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return currentZoomState;
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}
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float zoomWidget::GetNumZoomStates() {
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return numZoomStates;
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}
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void zoomWidget::Enable() {
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if ( enabled ) {
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return;
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}
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enabled = true;
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owner.setFov( sys.getDefaultFov(), GetZoomFov( currentZoomState ), zoomTime );
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}
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void zoomWidget::Disable() {
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currentZoomState = 0;
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if ( !enabled ) {
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return;
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}
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enabled = false;
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owner.setFov( GetZoomFov( currentZoomState ), sys.getDefaultFov(), zoomTime );
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}
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float zoomWidget::GetZoomFov( float indexValue ) {
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if ( numZoomStates <= 1 ) {
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return owner.getFloatKeyWithDefault( "zoom_fov", 45 );
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}
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float index = int( indexValue );
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float interpValue = indexValue - index;
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float fov = owner.getFloatKey( "zoom_fov_" + ( index + 1 ) );
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if ( fov <= 0 ) {
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fov = 90;
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}
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if ( interpValue > 0 ) {
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float fov2 = owner.getFloatKey( "zoom_fov_" + ( index + 2 ) );
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if ( fov2 <= 0 ) {
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fov2 = 90;
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}
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fov = fov + interpValue * ( fov2 - fov );
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}
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return fov;
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}
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void zoomWidget::Cycle() {
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sys.assert( enabled );
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float oldFov = owner.getFov();
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currentZoomState = currentZoomState + 1;
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if ( currentZoomState >= numZoomStates ) {
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currentZoomState = 0;
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} else {
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currentZoomState = int( currentZoomState );
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}
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owner.setFov( oldFov, GetZoomFov( currentZoomState ), zoomTime );
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}
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void zoomWidget::Zoom( float delta ) {
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sys.assert( enabled );
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float oldZoomState = currentZoomState;
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float oldFov = owner.getFov();
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float oldTargetFov = GetZoomFov( oldZoomState );
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float maxZoomState = numZoomStates - 1;
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currentZoomState = currentZoomState + delta;
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if ( currentZoomState > maxZoomState ) {
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currentZoomState = maxZoomState;
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}
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if ( currentZoomState < 0 ) {
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currentZoomState = 0;
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}
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owner.setFov( oldFov, GetZoomFov( currentZoomState ), zoomTime );
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}
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void zoomWidget::ZoomIn() {
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Zoom( 0.25 );
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}
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void zoomWidget::ZoomOut() {
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Zoom( -0.25 );
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}
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