static void
camo(pixel ** const pixels,
unsigned int const cols,
unsigned int const rows,
pixval const maxval,
bool const antiflag) {
pixel color;
int n, i, cx, cy;
struct fillobj * fh;
/* Clear background. */
if (antiflag)
color = random_anticamo_color( maxval );
else
color = random_camo_color( maxval );
ppmd_filledrectangle(
pixels, cols, rows, maxval, 0, 0, cols, rows, PPMD_NULLDRAWPROC,
&color);
n = (rows * cols) / (BLOBRAD * BLOBRAD) * 5;
for (i = 0; i < n; ++i) {
int points, p, xs[MAX_POINTS], ys[MAX_POINTS], x0, y0;
float a, b, c, theta, tang, tx, ty;
cx = rand() % cols;
cy = rand() % rows;
points = rand() % ( MAX_POINTS - MIN_POINTS + 1 ) + MIN_POINTS;
a = rnduni() * (MAX_ELLIPSE_FACTOR - MIN_ELLIPSE_FACTOR) +
MIN_ELLIPSE_FACTOR;
b = rnduni() * (MAX_ELLIPSE_FACTOR - MIN_ELLIPSE_FACTOR) +
MIN_ELLIPSE_FACTOR;
theta = rnduni() * 2.0 * M_PI;
for (p = 0; p < points; ++p) {
tx = a * sin(p * 2.0 * M_PI / points);
ty = b * cos(p * 2.0 * M_PI / points);
tang = atan2(ty, tx) + theta;
c = rnduni() * (MAX_POINT_FACTOR - MIN_POINT_FACTOR) +
MIN_POINT_FACTOR;
xs[p] = cx + BLOBRAD * c * sin(tang);
ys[p] = cy + BLOBRAD * c * cos(tang);
}
x0 = (xs[0] + xs[points - 1]) / 2;
y0 = (ys[0] + ys[points - 1]) / 2;
fh = ppmd_fill_create();
ppmd_polyspline(
pixels, cols, rows, maxval, x0, y0, points, xs, ys, x0, y0,
ppmd_fill_drawproc, fh );
if (antiflag)
color = random_anticamo_color(maxval);
else
color = random_camo_color(maxval);
ppmd_fill(pixels, cols, rows, maxval, fh, PPMD_NULLDRAWPROC, &color);
ppmd_fill_destroy(fh);
}
}
static void
executeScript(struct script * const scriptP,
pixel ** const pixels,
unsigned int const cols,
unsigned int const rows,
pixval const maxval) {
struct drawState drawState;
unsigned int seq;
/* Sequence number of current command (0 = first, etc.) */
struct commandListElt * p;
/* Pointer to current element in command list */
initDrawState(&drawState, maxval);
for (p = scriptP->commandListHeadP, seq = 0; p; p = p->nextP, ++seq) {
const struct drawCommand * const commandP = p->commandP;
if (verbose)
pm_message("Command %u: %u", seq, commandP->verb);
switch (commandP->verb) {
case VERB_SETPOS:
drawState.currentPos.x = commandP->u.setposArg.x;
drawState.currentPos.y = commandP->u.setposArg.y;
break;
case VERB_SETLINETYPE:
ppmd_setlinetype(commandP->u.setlinetypeArg.type);
break;
case VERB_SETLINECLIP:
ppmd_setlineclip(commandP->u.setlineclipArg.clip);
break;
case VERB_SETCOLOR:
drawState.color =
ppm_parsecolor2(commandP->u.setcolorArg.colorName,
maxval, TRUE);
break;
case VERB_SETFONT: {
FILE * ifP;
const struct ppmd_font * fontP;
ifP = pm_openr(commandP->u.setfontArg.fontFileName);
ppmd_read_font(ifP, &fontP);
ppmd_set_font(fontP);
pm_close(ifP);
} break;
case VERB_LINE:
ppmd_line(pixels, cols, rows, maxval,
commandP->u.lineArg.x0, commandP->u.lineArg.y0,
commandP->u.lineArg.x1, commandP->u.lineArg.y1,
PPMD_NULLDRAWPROC,
&drawState.color);
break;
case VERB_LINE_HERE: {
struct pos endPos;
endPos.x = drawState.currentPos.x + commandP->u.lineHereArg.right;
endPos.y = drawState.currentPos.y + commandP->u.lineHereArg.down;
ppmd_line(pixels, cols, rows, maxval,
drawState.currentPos.x, drawState.currentPos.y,
endPos.x, endPos.y,
PPMD_NULLDRAWPROC,
&drawState.color);
drawState.currentPos = endPos;
} break;
case VERB_SPLINE3:
ppmd_spline3(pixels, cols, rows, maxval,
commandP->u.spline3Arg.x0,
commandP->u.spline3Arg.y0,
commandP->u.spline3Arg.x1,
commandP->u.spline3Arg.y1,
commandP->u.spline3Arg.x2,
commandP->u.spline3Arg.y2,
PPMD_NULLDRAWPROC,
&drawState.color);
break;
case VERB_CIRCLE:
ppmd_circle(pixels, cols, rows, maxval,
commandP->u.circleArg.cx,
commandP->u.circleArg.cy,
commandP->u.circleArg.radius,
PPMD_NULLDRAWPROC,
&drawState.color);
break;
case VERB_FILLEDCIRCLE:
doFilledCircle(pixels, cols, rows, maxval, commandP, &drawState);
break;
case VERB_FILLEDRECTANGLE:
ppmd_filledrectangle(pixels, cols, rows, maxval,
commandP->u.filledrectangleArg.x,
commandP->u.filledrectangleArg.y,
commandP->u.filledrectangleArg.width,
commandP->u.filledrectangleArg.height,
PPMD_NULLDRAWPROC,
&drawState.color);
break;
case VERB_TEXT:
ppmd_text(pixels, cols, rows, maxval,
commandP->u.textArg.xpos,
commandP->u.textArg.ypos,
commandP->u.textArg.height,
commandP->u.textArg.angle,
commandP->u.textArg.text,
PPMD_NULLDRAWPROC,
&drawState.color);
break;
case VERB_TEXT_HERE:
doTextHere(pixels, cols, rows, maxval, commandP, &drawState);
break;
}
}
}
