Add option to show coliders (only rect so far)

sdlpp.cpp

@@ -107,3 +107,38 @@ bool SDLPP::Circle::colidesWith(const SDLPP::CollisionPolygon &other) const {
     int distancesquared = (pointx - centerx)*(pointx - centerx) + (pointy - centery)*(pointy-centery);
     return distancesquared <= rad*rad;
 }
+
+int SDLPP::hex2num(char c) {
+    if(c <= '9')
+        return c - '0';
+    switch(c) {
+        case 'a':
+        case 'A':
+            return 10;
+        case 'b':
+        case 'B':
+            return 11;
+        case 'c':
+        case 'C':
+            return 12;
+        case 'd':
+        case 'D':
+            return 13;
+        case 'e':
+        case 'E':
+            return 14;
+        default:
+            return 15;
+    }
+}
+
+std::tuple<int, int, int> SDLPP::getColorsHEX(const std::string &color) {
+    int red = 0, green = 0, blue = 0;
+    const char *color_ptr = color.c_str();
+    if(color_ptr[0] == '#')
+        color_ptr++;
+    red = hex2num(color_ptr[0])*16 + hex2num(color_ptr[1]);
+    green = hex2num(color_ptr[2])*16 + hex2num(color_ptr[3]);
+    blue = hex2num(color_ptr[4])*16 + hex2num(color_ptr[5]);
+    return {red, green, blue};
+}