matthew/The-Powder-Toy
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Increase drawing speed

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This commit is contained in:
Jacob1 2012-03-14 18:49:19 -04:00
parent b765edb981
commit 1cfcd25c36
1 changed files with 18 additions and 7 deletions
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25
src/powder.c
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@ -3167,22 +3167,33 @@ int create_parts(int x, int y, int rx, int ry, int c, int flags)
f = 1;
}
else
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=rx; i++)
if (InCurrentBrush(i ,j ,rx ,ry))
if (create_part_add_props(-2, x+i, y+j, c, rx, ry)==-1)
f = 1;
{
int tempy = y, i, j;
for (i = x - rx; i <= x; i++) {
while (InCurrentBrush(i-x,tempy-y,rx,ry)) {
tempy = tempy - 1;
}
tempy = tempy + 1;
for (j = tempy; j <= 2 * y - tempy; j++) {
if (create_part_add_props(-2, i, j, c, rx, ry)==-1)
f = 1;
if (create_part_add_props(-2, 2*x-i, j, c, rx, ry)==-1)
f = 1;
}
}
}
return !f;
}
int InCurrentBrush(int i, int j, int rx, int ry)
{
switch(CURRENT_BRUSH)
{
case CIRCLE_BRUSH:
return (pow(i,2)*pow(ry,2)+pow(j,2)*pow(rx,2)<=pow(rx,2)*pow(ry,2));
return (pow((double)i,2)*pow((double)ry,2)+pow((double)j,2)*pow((double)rx,2)<=pow((double)rx,2)*pow((double)ry,2));
break;
case SQUARE_BRUSH:
return (i*j<=ry*rx);
return (abs(i) <= rx && abs(j) <= ry);
break;
case TRI_BRUSH:
return (j <= ry ) && ( j >= (((-2.0*ry)/rx)*i) -ry) && ( j >= (((-2.0*ry)/(-rx))*i)-ry ) ;