Intermediate C++ Game Programming Tutorial 16 - Revision history

Chili: Text replacement - "http://www.planetchili.net/" to "https://www.planetchili.net/"

2022-05-05T04:26:30Z

Text replacement - "http://www.planetchili.net/" to "https://www.planetchili.net/"

Chili: /* Errata */

2020-06-27T04:10:24Z

‎Errata

R vdw: /* Video Timestamp Index */

2019-10-13T13:35:36Z

‎Video Timestamp Index

R vdw: /* Homework */

2019-09-29T16:01:24Z

‎Homework

R vdw at 06:58, 29 September 2019

2019-09-29T06:58:13Z

R vdw: /* Video Timestamp Index */

2019-09-29T06:55:15Z

‎Video Timestamp Index

R vdw: /* Video Timestamp Index */

2019-09-29T06:54:37Z

‎Video Timestamp Index

Chili at 04:32, 29 September 2019

2019-09-29T04:32:37Z

R vdw: /* Video Timestamp Index */

2019-09-28T20:25:09Z

‎Video Timestamp Index

R vdw: /* Video Timestamp Index */

2019-09-28T20:22:14Z

‎Video Timestamp Index

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 Solve the problems in Source.cpp attached below using the <algorithm> library and other parts of the standard library as extensively as possible. As a bonus problem, implement the sprite drawing effect shown at the end of the video using a lambda function.
-* [http://www.planetchili.net/downloads/I16-HW.zip Source.cpp (homework file)]
+* [https://www.planetchili.net/downloads/I16-HW.zip Source.cpp (homework file)]
 * [https://github.com/planetchili/sprite Sprite Repo (for bonus problem)]

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 == <span style="color:red">Errata</span> ==
 In the video Chili states that std::remove does not preserve the relative order of elements in the container, but this is fake news! Relative order is preserved: [https://en.cppreference.com/w/cpp/algorithm/remove]
 == Video Timestamp Index ==

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 == Video Timestamp Index ==
 [https://youtu.be/3J1Pz30IE4Q Tutorial 16]
 * Generic Algorithms: how Templates and Iterators make Algorithms independent of Data Types and Containers [https://youtu.be/3J1Pz30IE4Q?t=17s 0:17]
 * The <code>std::sort</code> algorithm and its requirements [https://youtu.be/3J1Pz30IE4Q?t=43s 0:43]
@@ Line 19: / Line 20: @@
 * Sort custom types, example code for sorting a custom class object by creating a functor, called like so: <br /><code>std::sort(vecObj.begin(),vecObj.end(),Obj::YLess{});</code> [https://youtu.be/3J1Pz30IE4Q?t=4m07s 4:07]
 * Removing items from a container, <code>std::remove</code> and <code>std::remove_if</code> [https://youtu.be/3J1Pz30IE4Q?t=6m11s 6:11]
 ** Create a functor as a unary predicate for the <code>std::remove</code> function to remove elements using a threshold variable [https://youtu.be/3J1Pz30IE4Q?t=8m28s 8:28]
 ** Use container member function <code>erase()</code> to correct the endpoint of the container after the remove operation [https://youtu.be/3J1Pz30IE4Q?t=9m51s 9:51]
 * Introducing Lambda functions to replace custom functors [https://youtu.be/3J1Pz30IE4Q?t=11m51s 11:51]
 * Using the Lambda capture to bring in variables into the Lambda function [https://youtu.be/3J1Pz30IE4Q?t=13m34s 13:34]
 ** Capture syntax explained: <code>[var]</code>,<code>[&var]</code>,<code>[=]</code>,<code>[&]</code>,<code>[newvar=var+10]</code>,<code>[this]</code>, capture multiple variables, mix&match capture modes
 ** Stateful Lambdas; changing captured lambda variables using the <code>mutable</code> flag [https://youtu.be/3J1Pz30IE4Q?t=15m59s 15:59]
 * Some anxiety-reducing consolation by Chili [https://youtu.be/3J1Pz30IE4Q?t=16m40s 16:40]
 * Syntax for a callable Lambda function [https://youtu.be/3J1Pz30IE4Q?t=17m03s 17:03]
 ** Make it callable once: <code>[...](...){...}(vec.front());</code>, functor is destroyed immediately
 ** Keep the functor using <code>auto mylamb = [...](...){...};</code>, which can be called by <code>bool result = mylamb(vec.front());</code>, or <code>std::remove_if(...,...,mylamb);</code>
 * The power of C++ is in its flexibility. Example code for converting a string to lowercase:<br /><code>std::transform(str.begin(),str.end(),str.begin(),::tolower);</code>[https://youtu.be/3J1Pz30IE4Q?t=17m49s 17:49]
 * Homework assignment [https://youtu.be/3J1Pz30IE4Q?t=18m39s 18:39]
 * Introducing the Algorithm [[STD Gems]] series that takes a deep dive into its functionality [https://youtu.be/3J1Pz30IE4Q?t=19m20s 19:20]
 == Homework ==

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 * [http://www.planetchili.net/downloads/I16-HW.zip Source.cpp (homework file)]
 * [https://github.com/planetchili/sprite Sprite Repo (for bonus problem)]
 == Related Series ==

@@ Line 31: / Line 31: @@
 * The power of C++ is in its flexibility. Example code for converting a string to lowercase:<br /><code>std::transform(str.begin(),str.end(),str.begin(),::tolower);</code>[https://youtu.be/3J1Pz30IE4Q?t=17m49s 17:49]
 * Homework assignment [https://youtu.be/3J1Pz30IE4Q?t=18m39s 18:39]
-* Introducing the [https://youtu.be/BxO6G4RgmAM Algorithm STD Gems] series that takes a deep dive into its functionality [https://youtu.be/3J1Pz30IE4Q?t=19m20s 19:20]
+* Introducing the Algorithm [[STD Gems]] series that takes a deep dive into its functionality [https://youtu.be/3J1Pz30IE4Q?t=19m20s 19:20]
 == Homework ==

@@ Line 20: / Line 20: @@
 * Removing items from a container, <code>std::remove</code> and <code>std::remove_if</code> [https://youtu.be/3J1Pz30IE4Q?t=6m11s 6:11] <br />- Create a functor as a unary predicate for the <code>std::remove</code> function to remove elements using a threshold variable [https://youtu.be/3J1Pz30IE4Q?t=8m28s 8:28] <br />- Use container member function <code>erase()</code> to correct the endpoint of the container after the remove operation [https://youtu.be/3J1Pz30IE4Q?t=9m51s 9:51]
 * Introducing Lambda functions to replace custom functors [https://youtu.be/3J1Pz30IE4Q?t=11m51s 11:51]
-* Using the Lambda capture to bring in variables into the Lambda function [https://youtu.be/3J1Pz30IE4Q?t=13m34s 13:34]<br />- Capture syntax explained: [varl],[&var],[=],[&],[newvar=var+10],[this], capture multiple variables, mix&match capture modes <br />- Stateful Lambdas; changing captured lambda variables using the <code>mutable</code> flag [https://youtu.be/3J1Pz30IE4Q?t=15m59s 15:59]
+* Using the Lambda capture to bring in variables into the Lambda function [https://youtu.be/3J1Pz30IE4Q?t=13m34s 13:34]<br />- Capture syntax explained: <code>[var]</code>,<code>[&var]</code>,<code>[=]</code>,<code>[&]</code>,<code>[newvar=var+10]</code>,<code>[this]</code>, capture multiple variables, mix&match capture modes <br />- Stateful Lambdas; changing captured lambda variables using the <code>mutable</code> flag [https://youtu.be/3J1Pz30IE4Q?t=15m59s 15:59]
 * Some anxiety-reducing consolation by Chili [https://youtu.be/3J1Pz30IE4Q?t=16m40s 16:40]
 * Syntax for a callable Lambda function [https://youtu.be/3J1Pz30IE4Q?t=17m03s 17:03] <br />- Make it callable once: <code>[...](...){...}(vec.front());</code>, functor is destroyed immediately<br />- Keep the functor using <code>auto mylamb = [...](...){...};</code>, which can be called by <code>bool result = mylamb(vec.front());</code>, or <code>std::remove_if(...,...,mylamb);</code>