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UI/UI_math.py

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+# THIS FILE IS A PART OF VCStudio
+# PYTHON 3
+
+
+# This is collection of simple geometric math operations that I gonna use trough
+# out the UI of the VCStudio. Stuff like collision detections, overlap detections
+# and other verious little tiny, but overused functions. 
+
+def line_overlap(line1, line2):
+    
+    # This function will check if 2 one dimenshional line overlap.
+    
+    overlap = False
+    
+    # Let's sort them just incase.
+    
+    line1.sort()
+    line2.sort()
+    
+    
+    # Well. I guess this is the least ambiguos way of doing so. In my opinion
+    
+    if line1[0] > line2[0] and line1[0] < line2[1]:
+        overlap = True
+    elif line1[1] > line2[0] and line1[1] < line2[1]:
+        overlap = True
+    elif line2[0] > line1[0] and line2[0] < line1[1]:
+        overlap = True
+    elif line2[1] > line1[0] and line2[1] < line1[1]:
+        overlap = True
+    
+    
+    return overlap
+
+def rectangle_overlap(rectangle1, rectangle2):
+    
+    # This function will see if 2 rectangle overlap. It returns either True or
+    # False.
+    
+    overlap = False
+    
+    # Now since it's going to be easier for me to use the same type of coordi-
+    # nates as in cairo to draw rectangles. I need to purify them first. Meaning
+    # convert the width and height into real points on a plane.
+    
+    r1x, r1y, r1w, r1h = rectangle1
+    r2x, r2y, r2w, r2h = rectangle2
+    
+    
+    r1w += r1x
+    r1h += r1y
+    r2w += r2x
+    r2h += r2y
+    
+    
+    # Now we going to simply compare if overlapping lines of x coordinates and if
+    # yes. Coordinates of y coordinates.
+    
+    if line_overlap([r1x, r1w],[r2x, r2w]) and line_overlap([r1y, r1h],[r2y, r2h]):
+        overlap = True
+    
+    
+    return overlap