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Shapes: Simplifies CheckCollisionRecs

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By comparing the edges of the rectangles relative to each other we can
determine if they intersect or not.
This commit is contained in:
Joseph-Eugene Winzer 2018-08-14 00:14:06 +02:00
parent 34493ed231
commit 1cef8ea1bf
1 changed files with 5 additions and 8 deletions
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13
src/shapes.c
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@ -646,14 +646,11 @@ bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2
// Check collision between two rectangles // Check collision between two rectangles
bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2) bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2)
{ {
bool collision = false; if ((rec1.x <= (rec2.x + rec2.width) && (rec1.x + rec1.width) >= rec2.x) &&
(rec1.y <= (rec2.y + rec2.height) && (rec1.y + rec1.height) >= rec2.y))
float dx = (float)fabs((rec1.x + rec1.width/2) - (rec2.x + rec2.width/2)); return true;
float dy = (float)fabs((rec1.y + rec1.height/2) - (rec2.y + rec2.height/2)); else
return false;
if ((dx <= (rec1.width/2 + rec2.width/2)) && ((dy <= (rec1.height/2 + rec2.height/2)))) collision = true;
return collision;
} }
// Check collision between two circles // Check collision between two circles