android Rect.intersect始终为false
士兵级
centerX += speedX; r.set(centerX , centerY, 50, 50);
子弹班
centerX += speedX; r.set(centerX, centerY, 50, 50);
if(Rect.intersects(r,GameScreen.soldier.r))
{
System.out.println("collision");
}
我在碰撞检测方面遇到了麻烦。我已经尝试过Rect.intersects,r.intersect(r1),r.contains(r1),并且始终为false。我什至绘制矩形以确保正确绘制并且正确绘制,但是碰撞始终为假
回答:
/** * Check if two rectangles collide
* x_1, y_1, width_1, and height_1 define the boundaries of the first rectangle
* x_2, y_2, width_2, and height_2 define the boundaries of the second rectangle
*/
boolean rectangle_collision(float x_1, float y_1, float width_1, float height_1, float x_2, float y_2, float width_2, float height_2)
{
return !(x_1 > x_2+width_2 || x_1+width_1 < x_2 || y_1 > y_2+height_2 || y_1+height_1 < y_2);
}
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