diff options
Diffstat (limited to '2d/_collisions/rectangle_rectangle/main.cpp')
| -rw-r--r-- | 2d/_collisions/rectangle_rectangle/main.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/2d/_collisions/rectangle_rectangle/main.cpp b/2d/_collisions/rectangle_rectangle/main.cpp index 99dafe5..689ea11 100644 --- a/2d/_collisions/rectangle_rectangle/main.cpp +++ b/2d/_collisions/rectangle_rectangle/main.cpp @@ -398,19 +398,25 @@ void update(float32 deltaTimeSeconds, void* userData) { } } - // Check collisions with walls + // Check collisions with walls. + // @NOTE: Setting the position backwards by a small amount _could_ move it into another object, but we are ignoring that circumstance + // for now, as it is very unlikely. for (int r = 0; r < 4; r++) { Rectangle* rect = &rectangleList[r]; if (rect->body.position.x <= 0.f) { + rect->body.position.x = 0.f; rect->body.velocity = rect->body.velocity - Vector2 { 1.f, 0.f } * (2 * (rect->body.velocity.dot(Vector2 { 1.f, 0.f }))); } if (rect->body.position.y <= 0.f) { + rect->body.position.y = 0.f; rect->body.velocity = rect->body.velocity - Vector2 { 0.f, 1.f } * (2 * (rect->body.velocity.dot(Vector2 { 0.f, 1.f }))); } if (rect->body.position.x >= 640.f) { + rect->body.position.x = 640.f; rect->body.velocity = rect->body.velocity - Vector2 { -1.f, 0.f } * (2 * (rect->body.velocity.dot(Vector2{ -1.f, 0.f }))); } if (rect->body.position.y >= 480.f) { + rect->body.position.y = 480.f; rect->body.velocity = rect->body.velocity - Vector2 { 0.f, -1.f } * (2 * (rect->body.velocity.dot(Vector2 { 0.f, -1.f }))) ; } } |