typedef struct { int x, y; } Point; void printPoint( Point *p ) { printf("(%d, %d) ", p->x, p->y ); } Point *newPoint() { Point *p = (Point *)malloc( sizeof( Point ) ); p->x=0; p->y=0; return p; } void setPoint( Point *p, int x, int y ) { p->x = x; p->y = y; } typedef struct { int red, green, blue; } Color; Color *newColor() { Color *c = (Color *)malloc( sizeof( Color ) ); c->red=0; c->green=0; c->blue=0; return c; } /* function to set a Color */ void setColor( Color *c, int r, int g, int b ) { if ( r<0 || r>255 ) r = 0; if ( g<0 || g>255 ) g = 0; if ( b<0 || b>255 ) b = 0; c->red = r; c->green = g; c->blue = b; } void printColor( Color *c ) { printf("%3d red, %3d grn, %3d blu", c->red, c->green, c->blue ); } typedef struct { Point *p0, *p1, *p2; Color *color; } TriangleMod; void printTriangleMod( TriangleMod *t ) { printf("Points: "); printPoint( t->p0 ); printPoint( t->p1 ); printPoint( t->p2 ); printf("\nColor: "); printColor( t->color ); printf("\n"); } TriangleMod *newTriangleMod() { TriangleMod *tm; tm = (TriangleMod *)malloc( sizeof( TriangleMod ) ); tm->p0 = newPoint(); tm->p1 = newPoint(); tm->p2 = newPoint(); tm->color = newColor(); return tm; } void freeTriangleMod( TriangleMod *t ) { free( t->color); free( t->p0); free( t->p1); free( t->p2); free( t ); } void setTriangleModPoint( TriangleMod *tri, int num, int x, int y) { if ( num==0 ) setPoint( tri->p0, x, y ); if ( num==1 ) setPoint( tri->p1, x, y ); if ( num==2 ) setPoint( tri->p2, x, y ); } void setTriangleModColor( TriangleMod *tri, int r, int g, int b) { setColor( tri->color, r, g, b ); } int main() { TriangleMod *trimod = newTriangleMod(); /* Initialize trimod here */ setTriangleModPoint( trimod, 0, 45, 97 ); setTriangleModPoint( trimod, 1, 75, 80 ); setTriangleModPoint( trimod, 2, 0, 0 ); setTriangleModColor( trimod, 120, 240, 50); /* Print out trimod */ printTriangleMod( trimod ); freeTriangleMod( trimod ); system( "pause" ); }
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