Add rect(x,y,w,h,tl,tr,br,bl) implementation

Author: pepc84

src/Processing.cpp

@@ -1,4 +1,19 @@
-#if __has_include("stb_truetype.h")
+#
+void PApplet::rect(float x,float y,float w,float h,float tl,float tr,float br,float bl){
+    if(!doFill && !doStroke) return;
+    float x2=x+w, y2=y+h;
+    beginShape();
+    vertex(x+tl,y); vertex(x2-tr,y);
+    if(tr>0){for(int i=0;i<=8;i++){float a=PI+HALF_PI+HALF_PI*i/8.f;vertex(x2-tr+::std::cos(a)*tr,y+tr+::std::sin(a)*tr);}}
+    vertex(x2,y+tr); vertex(x2,y2-br);
+    if(br>0){for(int i=0;i<=8;i++){float a=HALF_PI*i/8.f;vertex(x2-br+::std::cos(a)*br,y2-br+::std::sin(a)*br);}}
+    vertex(x2-br,y2); vertex(x+bl,y2);
+    if(bl>0){for(int i=0;i<=8;i++){float a=HALF_PI+HALF_PI*i/8.f;vertex(x+bl+::std::cos(a)*bl,y2-bl+::std::sin(a)*bl);}}
+    vertex(x,y2-bl); vertex(x,y+tl);
+    if(tl>0){for(int i=0;i<=8;i++){float a=PI+HALF_PI*i/8.f;vertex(x+tl+::std::cos(a)*tl,y+tl+::std::sin(a)*tl);}}
+    endShape(CLOSE);
+}
+if __has_include("stb_truetype.h")
 #  define PROCESSING_HAS_STB_TRUETYPE 1
 #  define STB_TRUETYPE_IMPLEMENTATION
 #  include "stb_truetype.h"