show:
name:Reproduction of benthic foraminifera
info:~
There are two species of Foraminiera: longitudal and coiled. The first chamber of the longitudal species has orange marks. Haploid and diploid generations alternate in both species. All chambers of the haploid generation have the same size. In the diploid generation, subsequent chambers are bigger than their predecessors. 

Nutrients are shown as tiny green cylinders. Foraminifers move towards nearest nutrients and this way they can accumulate enough energy to reproduce.

When the "Enhance visualization" option is enabled, reticulopodia are shown as large disks and positions of nutrients are indicated by cuboids.  

More information at www.framsticks.com/foraminifera
~
expdef:foraminifera
code:~

global Params; //to easily transfer changes in identical properties from this show to expdef
global lasttimescale; //to display time scale when it changes significantly

function onLoad()
{
	Simulator.init();
	lasttimescale=0;
	GLDisplay.desiredsimspeed = 50;
	GLDisplay.minfps = 10;
	TrackingCam.cam_h = 15; //more side view
	Params = { "feedrate" : [0.05,0.1,0.2], "feedtrans" : [0.01,0.05,0.1],"energy_nut" :[0.5,1.5,3.0], "stress" : [0,1], "visualize" : [0,1]};
	ShowParams.visualize=1;
}

function timeScale()
{
	//just a draft, this function and all constants in expdef need serious review
	var foramSpeedMmPerMin=0.1; //0.1 mm/minute based on http://drs.nio.org/drs/bitstream/handle/2264/418/ONGC_Bull_37%281%29_53.pdf
	var localDriveMicronsPerStep=framsToMicrons(0.08); //0.08 is used in expdef as distance (in frams units) per simulation step
	var foramSpeedMmPerSec=foramSpeedMmPerMin/60;
	var localDriveMmPerStep=localDriveMicronsPerStep/1000;
	var localDriveMmPerSec=localDriveMmPerStep*Simulator.simspeed;
	return localDriveMmPerSec/foramSpeedMmPerSec;
}

function updateBanner(timescale)
{
	GLDisplay.banner="World size is %g mm." % (framsToMicrons(World.wrldsiz)/1000);
	GLDisplay.banner+="\nShowing real-time x %g." % timescale;
}

function onShowStep()
{
	var timescale=timeScale();
	if (timescale<lasttimescale*0.9 || timescale>lasttimescale*1.1) //significant change
	{
		updateBanner(timescale);
		lasttimescale=timescale;
	}
}

function setShowParam(param_id)
{
	ExpParams.[param_id] = Params[param_id][ShowParams.[param_id]];
}

function ShowParams_feedrate_set()
{
	setShowParam("feedrate");
}

function ShowParams_feedtrans_set()
{
	setShowParam("feedtrans");
}

function ShowParams_energy_nut_set()
{
	setShowParam("energy_nut");
}

function ShowParams_stress_set()
{
	setShowParam("stress");
}

function ShowParams_visualize_set()
{
	setShowParam("visualize");
}

~

prop:
id:feedrate
name:Feeding rate
type:d 0 2 1 ~Low~Medium~High

prop:
id:feedtrans
name:Energy transfer
type:d 0 2 1 ~0.01~0.05~0.1

prop:
id:energy_nut
name:Nutrient energy
type:d 0 2 1 ~0.5~1.5~3

prop:
id:stress
name:Stress 
type:d 0 1 1

prop:
id:visualize
name:Enhance visualization
type:d 0 1 0