public static void RemoveModel(Model lmember, ref Model llist, ModelGrid mg)
{
//{Locate and extract member LMember from list LList.}
//{Then, dispose of LMember.}
//{ Initialize A and B }
Model b = llist;
Model a = null;
//{ Save the X,Y position of the model. }
int x = lmember.x;
int y = lmember.y;
//{Locate LMember in the list. A will thereafter be either Nil,}
//{if LMember if first in the list, or it will be equal to the}
//{element directly preceding LMember.}
while (b != lmember && b != null)
{
a = b;
b = b.next;
}
if (b == null)
{
//{ Major FUBAR. The member we were trying to remove can't}
//{ be found in the list.}
Crt.Write("ERROR- RemoveModel asked to remove a model that doesnt exist.");
do
{
rpgtext.RPGKey();
} while (true);
}
else if (a == null)
{
//{ There's no element before the one we want to remove,}
//{ i.e. it's the first one in the list.}
llist = b.next;
b.next = null;
}
else
{
//{We found the model we want to delete and have another}
//{one standing before it in line. Go to work.}
a.next = b.next;
b.next = null;
}
//{ Update the model grid. }
if (FindModelXY(llist, x, y) == null)
{
mg.Set(x, y, false);
}
}
public static void SetModelLoc(Model m, Model mList, ModelGrid mg, int x2, int y2)
{
//{ Move the model M to location X2,Y2, adjusting the contents of}
//{ the modelgrid accordingly.}
//{ Range check. If X2,Y2 lie out of bounds, bring them back into}
//{ bounds.}
if (x2 < 1)
{
x2 = 1;
}
else if (x2 > XMax)
{
x2 = XMax;
}
if (y2 < 1)
{
y2 = 1;
}
else if (y2 > YMax)
{
y2 = YMax;
}
//{ Save the initial position of the model.}
int x1 = m.x;
int y1 = m.y;
//{Change the position of the model.}
m.x = x2;
m.y = y2;
if (FindModelXY(mList, x1, y1) == null)
{
mg.Set(x1, y1, false);
}
mg.Set(x2, y2, true);
}
public static Model AddModel(ref Model mp, ModelGrid mg, char gfx, Crt.Color color, Crt.Color bColor, bool coHab, int x, int y, int kind)
{
//{ Add a model to the model list.}
//{ Allocate memory for IT}
//{ Initialize all of ITs fields}
Model it = new Model(gfx, color, bColor, coHab, x, y, kind);
//{ Do a range check on X and Y to make sure they lie inside the playfield.}
if (x < 1)
{
x = 1;
}
else if (x > XMax)
{
x = XMax;
}
if (y < 1)
{
y = 1;
}
else if (y > YMax)
{
y = YMax;
}
//{Modify the model grid to show that the spot is occupied.}
mg.Set(x, y, true);
//{Locate a good position to attach it to.}
if (mp == null)
{
//{the list is currently empty. Attach it as the first model.}
mp = it;
}
else
{
//{The list has stuff in it. Attach IT to the end.}
LastModel(mp).next = it;
}
return(it);
}