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| author | Jacob1 <jfu614@gmail.com> | 2011-11-23 15:35:54 (GMT) |
|---|---|---|
| committer | Jacob1 <jfu614@gmail.com> | 2012-03-14 22:51:31 (GMT) |
| commit | 7742586639fd84fb7a4d657d78fb82df8955b69f (patch) | |
| tree | 432fe6855eda654ecddd3387adfdd3c6401f099b /src/graphics.c | |
| parent | dea920680bd25d8fd15e1db1a62324a4f13a2ed2 (diff) | |
| download | powder-7742586639fd84fb7a4d657d78fb82df8955b69f.zip powder-7742586639fd84fb7a4d657d78fb82df8955b69f.tar.gz | |
large cursor size doesn't cause any lag at all
Diffstat (limited to 'src/graphics.c')
| -rw-r--r-- | src/graphics.c | 69 |
1 files changed, 31 insertions, 38 deletions
diff --git a/src/graphics.c b/src/graphics.c index a384340..567b497 100644 --- a/src/graphics.c +++ b/src/graphics.c @@ -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 (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 (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 (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 |