matthew/The-Powder-Toy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

large cursor size doesn't cause any lag at all

Browse Source
This commit is contained in:
Jacob1 2011-11-23 10:35:54 -05:00
parent dea920680b
commit 7742586639
1 changed files with 31 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
src/graphics.c
View File

@ -3631,46 +3631,39 @@ void render_cursor(pixel *vid, int x, int y, int t, int rx, int ry)
if (t<PT_NUM||(t&0xFF)==PT_LIFE||t==SPC_AIR||t==SPC_HEAT||t==SPC_COOL||t==SPC_VACUUM||t==SPC_WIND||t==SPC_PGRV||t==SPC_NGRV)
{
if (rx<=0)
xor_pixel(x, y, vid);
for (j = y - ry; j <= y + ry; j++)
xor_pixel(x, j, vid);
else if (ry<=0)
xor_pixel(x, y, vid);
if (rx+ry<=0)
xor_pixel(x, y, vid);
else if (CURRENT_BRUSH==SQUARE_BRUSH)
for (i = x - rx; i <= x + rx; i++)
xor_pixel(i, y, vid);
else
{
for (j=0; j<=ry; j++)
for (i=0; i<=rx; i++)
if (i*j<=ry*rx && ((i+1)>rx || (j+1)>ry))
{
xor_pixel(x+i, y+j, vid);
xor_pixel(x-i, y-j, vid);
if (i&&j)xor_pixel(x+i, y-j, vid);
if (i&&j)xor_pixel(x-i, y+j, vid);
}
}
else if (CURRENT_BRUSH==CIRCLE_BRUSH)
{
for (j=0; j<=ry; j++)
for (i=0; i<=rx; i++)
if (pow(i,2)*pow(ry,2)+pow(j,2)*pow(rx,2)<=pow(rx,2)*pow(ry,2) &&
(pow(i+1,2)*pow(ry,2)+pow(j,2)*pow(rx,2)>pow(rx,2)*pow(ry,2) ||
pow(i,2)*pow(ry,2)+pow(j+1,2)*pow(rx,2)>pow(rx,2)*pow(ry,2)))
{
xor_pixel(x+i, y+j, vid);
if (j) xor_pixel(x+i, y-j, vid);
if (i) xor_pixel(x-i, y+j, vid);
if (i&&j) xor_pixel(x-i, y-j, vid);
}
}
else if (CURRENT_BRUSH==TRI_BRUSH)
{
for (j=-ry; j<=ry; j++)
for (i=-rx; i<=0; i++)
if ((j <= ry ) && ( j >= (((-2.0*ry)/(rx))*i)-ry ) && (j+1>ry || ( j-1 < (((-2.0*ry)/(rx))*i)-ry )) )
{
xor_pixel(x+i, y+j, vid);
if (i) xor_pixel(x-i, y+j, vid);
}
int tempy = y, i, j, jmax, oldy;
if (CURRENT_BRUSH == TRI_BRUSH)
tempy = y + ry;
for (i = x - rx; i <= x; i++) {
oldy = tempy;
while (InCurrentBrush(i-x,tempy-y,rx,ry))
tempy = tempy - 1;
tempy = tempy + 1;
jmax = 2*y - tempy;
if (oldy != tempy && CURRENT_BRUSH != SQUARE_BRUSH)
oldy--;
if (CURRENT_BRUSH == TRI_BRUSH)
oldy = tempy;
for (j = tempy; j <= oldy; j++) {
int i2 = 2*x-i, j2 = 2*y-j;
if (CURRENT_BRUSH == TRI_BRUSH)
j2 = y+ry;
xor_pixel(i, j, vid);
if (i2 != i)
xor_pixel(i2, j, vid);
if (j2 != j)
xor_pixel(i, j2, vid);
if (i2 != i && j2 != j)
xor_pixel(i2, j2, vid);
}
}
}
}
else //wall cursor