37 lines
742 B
C++
37 lines
742 B
C++
#pragma once
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#include "PhysicsTypes.h"
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namespace charcoal
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{
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namespace physics
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{
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namespace collision
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{
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// 4 comparisons
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bool point_in_rect(const Rect& rect, float x, float y)
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{
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return
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y < rect.top &&
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y > rect.bottom &&
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x > rect.left &&
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x < rect.right;
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}
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// 8 * 4 = 32 comparisons
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bool rect_in_rect(const Rect& a, const Rect& b)
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{
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return
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point_in_rect(a, b.left, b.top) ||
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point_in_rect(a, b.left, b.bottom) ||
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point_in_rect(a, b.right, b.top) ||
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point_in_rect(a, b.right, b.bottom) ||
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point_in_rect(b, a.left, a.top) ||
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point_in_rect(b, a.left, a.bottom) ||
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point_in_rect(b, a.right, a.top) ||
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point_in_rect(b, a.right, a.bottom);
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}
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}
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}
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} |