added Nic's collision pseudocode

design/collision-PseudoCode.txt

@@ -0,0 +1,27 @@
+
+checkCollision(movingRect, moveVector, solidRect)
+{
+    // Need to make additional similar checks for each side
+    if (moveVector.x > 0)
+    {
+        if (movingRect.xMax < solidRect.xMin &&
+            movingRect.xMax + moveVector.x > solidRect.xMin)
+        {
+            xHitRatio = (solidRect.xMin - moveingRect.xMax) / moveVector.x
+        }
+    }
+    // Also find hit ratio of y movement and see which one will hit first if either does.
+    if (xHitRatio < yHitRatio)
+    {
+        yHitPosMin = movingRect.yMin + moveVector.y * xHitRatio
+        yHitPosMax = movingRect.yMax + moveVector.y * xHitRatio
+        if (yHitPosMin < solidRect.yMax &&
+            yHitPosMax > solidRect.yMin)
+        {
+            // We know here now where we should collide, however if we stop here the collision will feel 'sticky'
+            // rather than just applying the ratio to the movement vector, we want to instead slide along the collision
+            output.x = movingRect.xOrigin + moveVector.x * xHitRatio
+            output.y = movingRect.yOrigin + moveVector.y // Here is where we should split off a new movement vector to check collision again really, since it is a new direction to check, so return the hit position with a new smaller vector to 'finish' the movement.
+        }
+    }
+}