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deleted more code following line-buffer refactoring

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Simen Svale Skogsrud
2010-03-03 13:12:16 +01:00
parent 7e152851cc
commit 9a41b3a4fb
3 changed files with 0 additions and 99 deletions
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27
geometry.h
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@@ -25,31 +25,4 @@
// Find the angle from the positive y axis to the given point with respect to origo.
double theta(double x, double y);
// Find the quadrant of the coordinate
int quadrant_of_the_circle(int32_t x, int32_t y);
/*
Quadrants of the circle
+---- 0 ----+ 0 - y is always positive and |x| < |y|
| | 1 - x is always positive and |x| > |y|
| | 2 - y is always negative and |x| < |y|
3 + 1 3 - x is always negative and |x| > |y|
| |
| |
+---- 2 ----+
*/
// A macro to decide if a quadrant-number represent a horizontal quadrant
#define quadrant_horizontal(q) ((q % 2) == 0)
// Very specialized helper to calculate the amount of steps to travel in the given quadrant of a circle provided the
// axial direction of the quadrant, the angular_direction of travel (-1 or +1) and amount of steps in one half quadrant
// of the circle.
uint32_t steps_in_partial_quadrant(int32_t x, int32_t y, int horizontal_quadrant, int angular_direction,
int32_t steps_in_half_quadrant);
// Counts the amount of full quadrants between quadrant_start and quadrant_target along the angular_direction
int full_quadrants_between(int quadrant_start, int quadrant_target, int angular_direction);
#endif