Basic Multiplayer Support | Handmade Hero Episode Guide

0:00:00Intro and welcome

0:01:25Where we were..

0:01:50Addressing a bug that was found by the forums

0:04:30Thinking about how to handle input

0:06:24Which controller maps to which character?

0:09:04How we're going to handle this problem

0:10:36Mapping a controller to a character

0:11:36Pulling player info into the 'entity' structure to support multiple players

0:12:50Modifying game_input to allow for multiple players

0:14:31Changing his mind about how to handle this

0:18:59CameraFollowingEntityIndex

0:19:11Making the camera follow a certain player

0:22:07Drawing all of the players

0:24:38Fixing HeroFacingDirection

0:28:21AboluteValue intrinsic

0:29:31Adding an entity to the game

0:31:23Initializing a player

0:33:40Crash!

0:36:24MovePlayer()

0:39:24Moving player width/height into InitializePlayer()

0:42:15Calling the movement code

0:43:24Debugging the movement code

0:47:08Some days, you just have to fire yourself.^α

0:49:06Fixing facing direction, again

0:50:42Retuning movement constants

0:52:09What we're going to do tomorrow

0:53:00BRB, controller!

0:53:59Demo of mult-player support

0:54:30Q&A

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0:54:30Q&A

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0:54:30Q&A

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0:55:08On split-screen what kind of resolution were you thinking for each?

0:56:15You once said visualizing problems is never a wasted effort. Should we use it for collision detection?

0:56:52Are entities just for players or all game objects?

0:57:23How input be handled when both players trigger an action at the same time?

0:57:46Who is the camera following with multiple players? [code change]

1:00:44When you decided to have multiple players you decided to call them entities. Why?

1:01:56How do you make the characters not run through the trees?

1:03:50Why are we doing physical based movement?

1:04:37Will we be doing any image manipulation with code?

1:04:47Any reason to catch failing to load art assets? [code change]

1:06:54Is the notion of having all entities in a single array something that'll stay for long?

1:07:22Why do you not use an auto-compiler?

1:07:51How would disconnected controllers mid-game gracefully handled?

1:08:53When comparing a float to zero shouldn't we be checking withing a tolerance instead?

1:09:26Will there be diagonal movement sprites to the hero?

1:10:29Since small velocities were brought up, will we account for small inputs i.e. deadzones?

1:12:01About storing entities in an array. If there's massive operations on many of them, can this be exploited?

1:13:03Why didn't we use the bitmap masks directly?

1:15:22Are there any games that you've personally developed that are available to the public?

1:17:39Why do you use the function call macros?

1:18:33Will you wait for Jon to finish his presentation tomorrow?

1:18:54Can you explain what you mean by 'deadzone on the controller'?

1:22:54Do controllers have an outside deadzone?

1:23:58Addition to bitmap loading question: 'You && with a 32bit value and use what you get'

1:26:31Can you ever talk about the code you made that shipped 2000+ times?

1:28:00Will we be using a component system?

1:28:20Any estimation where GUIs will appear?

1:28:55Chat says: there are rotation instructions

1:33:05[code change: Using rotation instructions]

1:39:45Rotate will work but it's microcoded, so don't use them if you want performance

1:40:16Doesn't the rotate mess with the XP compatibility?

1:40:54Pondering about microcode speed

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