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Game Programming in C++ Errata

Here are the known errors in the text of the book. If you notice any further errors, please create an issue on this GitHub repository.

  • Chapter 2
    • Page 42: The loop over mActors is actually in Game::UnloadData, which is then called from Game::Shutdown (found by Kevin Runge)
  • Chapter 3
    • Page 67: The return type of Actor::GetForward should be Vector2 (found by Takashi Imagire)
    • Page 70: When discussing the properties of the dot product, the text incorrectly states that the dot product is associative. It is not associative since the first dot product results in a scalar, and thus it is impossible to perform a second dot product. However, scalar multiplication is associative over the dot product, since s (a dot b) = (s a) dot b. (found by Takashi Imagire)
  • Chapter 4
    • Page 101: The last sentence should read "In this case, if you access outMap and the node requested isn’t in the map, you initialize that node’s parent to the current node." (found by Takashi Imagire)
    • Page 107: Where it talks about the GBFS open set, the vector defined for the open set should be called openSet, not closedSet (found by Takashi Imagire)
  • Chapter 6
    • Page 199: The reference to "horizontal" field of view should say "vertical" field of view, since it affects the y-component (found by Takashi Imagire)
  • Chapter 7
    • Page 386: The virtual position of sound equation yields a vector rather than a position (The virtual position of the sound is obtained by adding the camera position to that vector). This equation is required for Ex 7.2 (found by Joshua Hardman)
  • Chapter 10
    • The PhysWorld::SegmentCast function is missing code to update closestT, which is fixed in the source in this repo.
  • Chapter 13
    • Page 396: In the equations for bilinear interpolation, the vFactor component should access the .v components of P, A, and C, not the .u components (found by Takashi Imagire)