unix port tweaks, starting test

Author: FoamyGuy

shared-bindings/vectorio/__init__.c

@@ -324,7 +324,10 @@ MP_DEFINE_CONST_FUN_OBJ_KW(vectorio_line_contains_point_obj, 0, vectorio_line_co
 //|     y1: int,
 //|     x2: int,
 //|     y2: int,
-//      cx: int, cy: int, cr: int
+//|     cx: int,
+//|     cy: int,
+//|     cr: int,
+//|     padding: float
 //| ) -> bool:
 //|     """Checks whether a line intersects with a circle
 //|

shared-module/vectorio/__init__.c

@@ -106,7 +106,7 @@ bool common_hal_vectorio_line_contains_point(
     float d1 = measure_distance(x1, y1, px, py);
     float d2 = measure_distance(x2, y2, px, py);
 
-    if (d1 + d2 >= line_length - padding && d1 + d2 <= line_length + padding) {
+    if (d1 + d2 >= line_length - (float)padding && d1 + d2 <= line_length + (float)padding) {
         return true;
     }
     return false;
@@ -125,12 +125,12 @@ bool common_hal_vectorio_line_circle_intersects(
     }
     float line_length = measure_distance(x1, y1, x2, y2);
 
-    float dot = (((cx - x1) * (x2 - x1)) + ((cy - y1) * (y2 - y1))) / pow(line_length, 2);
+    float dot = (float)(((cx - x1) * (x2 - x1)) + ((cy - y1) * (y2 - y1))) / (float)pow(line_length, 2);
 
     float closestX = x1 + (dot * (x2 - x1));
     float closestY = y1 + (dot * (y2 - y1));
 
-    if (!common_hal_vectorio_line_contains_point(x1, y1, x2, y2, closestX, closestY, padding)) {
+    if (!common_hal_vectorio_line_contains_point(x1, y1, x2, y2, (int)closestX, (int)closestY, padding)) {
         return false;
     }
     float distance = measure_distance(closestX, closestY, cx, cy);

tests/vectorio/intersection.py

@@ -0,0 +1,37 @@
+import vectorio
+
+args = (50, 50, 10, 50, 71, 10)
+print(f"circle circle validate False: {args}")
+print(vectorio.circle_circle_intersects(*args))
+
+args = (50, 50, 10, 50, 70, 10)
+print(f"circle circle validate True: {args}")
+print(vectorio.circle_circle_intersects(*args))
+
+args = (50, 50, 10, 50, 29, 10, 10)
+print(f"circle rectangle validate False: {args}")
+print(vectorio.circle_rectangle_intersects(*args))
+
+args = (50, 50, 10, 50, 30, 10, 10)
+print(f"circle rectangle validate True: {args}")
+print(vectorio.circle_rectangle_intersects(*args))
+
+args = (0, 0, 50, 50, 50, 60, 10)
+padding = 0.1
+print(f"line circle validate True: {args}, {padding}")
+print(vectorio.line_circle_intersects(*args, padding=padding))
+
+args = (0, 0, 50, 50, 50, 61, 10)
+padding = 0.1
+print(f"line circle validate False: {args}, {padding}")
+print(vectorio.line_circle_intersects(*args, padding=padding))
+
+args = ([(50, 0), (100, 0), (150, 50), (0, 50)], 0, 0, 161, 50, 10)
+padding = 0.1
+print(f"polygon circle validate False: {args}, {padding}")
+print(vectorio.polygon_circle_intersects(*args, padding=padding))
+
+args = ([(50, 0), (100, 0), (150, 50), (0, 50)], 0, 0, 160, 50, 10)
+padding = 0.1
+print(f"polygon circle validate True: {args}, {padding}")
+print(vectorio.polygon_circle_intersects(*args, padding=padding))