CS 1666 www.cs.pitt.edu/~nlf4/cs1666/ Collision detection - - PowerPoint PPT Presentation
CS 1666 www.cs.pitt.edu/~nlf4/cs1666/ Collision detection Collision detection We already had to implement some basic collision detection in the motion example I.e., to keep our square from moving out of the window Checking for
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in the motion example
○ I.e., to keep our square from moving out of the window ○ Checking for collisions with the boundary of the window
screen, how can we check whether they've hit one another?
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○ SDL_bool SDL_HasIntersection(const SDL_Rect* A, const SDL_Rect* B) ■ True if the two SDL_Rect's intersect ■ False otherwise ○ SDL_bool SDL_IntersectRect(const SDL_Rect* A, constSDL_Rect* B, SDL_Rect* result) ■ Same returns, but will also set result to the intersection
■ result will be NULL if there is no intersection
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