void ZoomCamera::adjust(const Bounds2D& bounds, bool adjust_distance) {
//center camera on bounds
vec2 centre = bounds.centre();
//adjust by screen ratio
dest.x = centre.x;
dest.y = centre.y;
if(!adjust_distance) return;
//scale by 10% so we dont have stuff right on the edge of the screen
float width = bounds.width() * padding;
float height = bounds.height() * padding;
float aspect_ratio = display.width / (float) display.height;
if(aspect_ratio < 1.0) {
height /= aspect_ratio;
} else {
width /= aspect_ratio;
}
//calc visible width of the opposite wall at a distance of 1 this fov
float toa = tan( fov * 0.5f * DEGREES_TO_RADIANS ) * 2.0;
float distance;
//TOA = tan = opposite/adjacent (distance = adjacent)
//use the larger side of the box
//cropping: vertical, horizontal or none
if(gGourceSettings.crop_vertical) {
distance = width / toa;
} else if (gGourceSettings.crop_horizontal) {
distance = height / toa;
} else {
if(width >= height) {
distance = width / toa;
} else {
distance = height / toa;
}
}
//debugLog("toa %.2f, distance %.2f width %.2f height %.2f dratio %.2f\n", toa, distance, width, height, dratio);
//check bounds are valid
if(distance < min_distance) distance = min_distance;
if(distance > max_distance) distance = max_distance;
this->dest.z = -distance;
}
void ZoomCamera::adjust(Bounds2D& bounds) {
//center camera on bounds
//scale by 10% so we dont have stuff right on the edge of the screen
float width = bounds.width() * padding;
float height = bounds.height() * padding;
vec2f centre = bounds.centre();
//adjust by screen ratio
float dratio = display.height / (float) display.width;
if(dratio > 1.0) {
height /= dratio;
} else {
width *= dratio;
}
//calc visible width of the opposite wall at a distance of 1 this fov
float toa = tan( getFov() * 0.5f * DEGREES_TO_RADIANS ) * 2.0;
float distance;
//TOA = tan = opposite/adjacent (distance = adjacent)
//use the larger side of the box
//cropping: vertical, horizontal or none
if(gGourceSettings.crop_vertical) {
distance = width / toa ;
} else if (gGourceSettings.crop_horizontal) {
distance = height / toa ;
} else {
if(width > height) {
distance = width / toa ;
} else {
distance = height / toa ;
}
}
//debugLog("toa %.2f, distance %.2f width %.2f height %.2f dratio %.2f\n", toa, distance, width, height, dratio);
//check bounds are valid
if(distance < min_distance) distance = min_distance;
if(distance > max_distance) distance = max_distance;
this->dest = vec3f(centre.x, centre.y, -distance);
}