Handling Glove Collisions — Handmade Hero — Episode Guide

0:00Recap and set the stage for the day doing glove collision

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0:00Recap and set the stage for the day doing glove collision

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0:00Recap and set the stage for the day doing glove collision

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0:11Demo the glove's chaining move patterns

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0:11Demo the glove's chaining move patterns

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0:11Demo the glove's chaining move patterns

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1:23Determine to handle glove collision, on overlapping hit boxes

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1:23Determine to handle glove collision, on overlapping hit boxes

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1:23Determine to handle glove collision, on overlapping hit boxes

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6:07Define a strike as Street Fighter-esque overlapping hit boxes

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6:07Define a strike as Street Fighter-esque overlapping hit boxes

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6:07Define a strike as Street Fighter-esque overlapping hit boxes

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6:51RayIntersectsBox() is for debug purposes

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6:51RayIntersectsBox() is for debug purposes

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6:51RayIntersectsBox() is for debug purposes

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7:32Prepare to handle glove collision, considering switching to a grid

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7:32Prepare to handle glove collision, considering switching to a grid

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7:32Prepare to handle glove collision, considering switching to a grid

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9:52Set up UpdateAndRenderEntities() to process projectile collisions in a post-pass loop

13:35richardycg That entity_iterator would look lovely with the new C++ for-loop syntax

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13:35richardycg That entity_iterator would look lovely with the new C++ for-loop syntax

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13:35richardycg That entity_iterator would look lovely with the new C++ for-loop syntax

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13:57richardycg lol, no, but it's the one thing they fixed

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13:57richardycg lol, no, but it's the one thing they fixed

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13:57richardycg lol, no, but it's the one thing they fixed

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15:26richardycg for (entity *Projectile : IterateAllEntities(SimRegion)) { /**/ }

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15:26richardycg for (entity *Projectile : IterateAllEntities(SimRegion)) { /**/ }

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15:26richardycg for (entity *Projectile : IterateAllEntities(SimRegion)) { /**/ }

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15:56Add EntityFlag_Collider to entity_flags

16:29genughaben By the way, what is your opinion of Rust?

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16:29genughaben By the way, what is your opinion of Rust?

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16:29genughaben By the way, what is your opinion of Rust?

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16:32Set up UpdateAndRenderEntities() to work on EntityFlag_Collider in its post-pass collision loop

16:46Further thoughts on modern languages

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16:46Further thoughts on modern languages

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16:46Further thoughts on modern languages

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17:26Set up UpdateAndRenderEntities() to check if a projectile collides

18:32Try out conversation box checking

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18:32Try out conversation box checking

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18:32Try out conversation box checking

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19:05Consider handling projectile collision like conversation boxes

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19:05Consider handling projectile collision like conversation boxes

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19:05Consider handling projectile collision like conversation boxes

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20:00bryantdrewjones What’s the obviously good for-loop syntax?

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20:00bryantdrewjones What’s the obviously good for-loop syntax?

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20:00bryantdrewjones What’s the obviously good for-loop syntax?

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22:39yuika_lamonting Jai has: for array {action}

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22:39yuika_lamonting Jai has: for array {action}

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22:39yuika_lamonting Jai has: for array {action}

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23:15Make UpdateAndRenderEntities() check if a projectile collides

24:09Consider single-hit application schemes: invincibility frames, projectile disabling

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24:09Consider single-hit application schemes: invincibility frames, projectile disabling

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24:09Consider single-hit application schemes: invincibility frames, projectile disabling

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28:37Toggle to the 1-step attack pattern in ExecuteBrainHero()

29:12Try our simple punch

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29:12Try our simple punch

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29:12Try our simple punch

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29:15Toggle off the attack pattern drawing in ExecuteBrainHero()

29:40Desire to repeatedly punch the same enemy

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29:40Desire to repeatedly punch the same enemy

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29:40Desire to repeatedly punch the same enemy

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30:16Consider using a global attack sequence number to makes attacks only hit once

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30:16Consider using a global attack sequence number to makes attacks only hit once

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30:16Consider using a global attack sequence number to makes attacks only hit once

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31:58annonymus Wouldn't that mean a slow projectile could be invalidated by a later fast projectile?

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31:58annonymus Wouldn't that mean a slow projectile could be invalidated by a later fast projectile?

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31:58annonymus Wouldn't that mean a slow projectile could be invalidated by a later fast projectile?

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32:44Consider making hit boxes activated on only one frame

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32:44Consider making hit boxes activated on only one frame

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32:44Consider making hit boxes activated on only one frame

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33:46Spawn multiple heroes

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33:46Spawn multiple heroes

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33:46Spawn multiple heroes

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34:55Consider tracking a list of previously overlapping entities

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34:55Consider tracking a list of previously overlapping entities

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34:55Consider tracking a list of previously overlapping entities

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39:28Introduce an entity_collider_group for entity to contain

40:28Make UpdateAndRenderEntities() compare an Old and New entity_collider_group to detect projectile collisions

46:39hmendoza2001 Not from San Francisco, but from Ohio

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46:39hmendoza2001 Not from San Francisco, but from Ohio

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46:39hmendoza2001 Not from San Francisco, but from Ohio

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47:09hellminmunster Hey handmade_hero! I've just started going through this series on YouTube, currently on Day 004. So, now that you are 600+ episodes into the series is there anything you want to tell someone just starting?

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47:09hellminmunster Hey handmade_hero! I've just started going through this series on YouTube, currently on Day 004. So, now that you are 600+ episodes into the series is there anything you want to tell someone just starting?

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47:09hellminmunster Hey handmade_hero! I've just started going through this series on YouTube, currently on Day 004. So, now that you are 600+ episodes into the series is there anything you want to tell someone just starting?

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51:49Make UpdateAndRenderEntities() finally update LastFrameColliders to the NewGroup

52:04Describe the projectile collision detection loop, considering exit events

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52:04Describe the projectile collision detection loop, considering exit events

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52:04Describe the projectile collision detection loop, considering exit events

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53:49Describe a SIMD version of the projectile collision detection loop

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53:49Describe a SIMD version of the projectile collision detection loop

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53:49Describe a SIMD version of the projectile collision detection loop

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58:17Remove unused entity_flags, and split EntityFlag_Collider into EntityFlag_AppliesCollision and EntityFlag_ReceivesCollision

1:01:57Remove pairwise_collision_rule

1:03:47sagian2005 So we can't punch trees…

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1:03:47sagian2005 So we can't punch trees…

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1:03:47sagian2005 So we can't punch trees…

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1:04:38Remove particle_cel and particle, and CanCollide()

1:05:09Introduce CollisionResolve()

1:07:02The snakes have hit points

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1:07:02The snakes have hit points

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1:07:02The snakes have hit points

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1:07:56Rename HIT_POINT_SUB_COUNT to HIT_POINT_SUBDIVISIONS

1:09:02sagian2005 …but Casey can't download Minecraft because the biggest software company in the world wouldn't let him buy the most popular game in the world

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1:09:02sagian2005 …but Casey can't download Minecraft because the biggest software company in the world wouldn't let him buy the most popular game in the world

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1:09:02sagian2005 …but Casey can't download Minecraft because the biggest software company in the world wouldn't let him buy the most popular game in the world

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1:10:49Implement CollisionResolve(), introducing ApplyDamage()

1:18:22Make AddPlayer() set EntityFlag_AppliesCollision and SnakePattern set EntityFlag_ReceivesCollision

1:19:45Punching a snake does no damage

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1:19:45Punching a snake does no damage

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1:19:45Punching a snake does no damage

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1:20:38Fail to break on ApplyDamage()

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1:20:38Fail to break on ApplyDamage()

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1:20:38Fail to break on ApplyDamage()

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1:21:10Break in to the projectile collision detection loop in UpdateAndRenderEntities()

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1:21:10Break in to the projectile collision detection loop in UpdateAndRenderEntities()

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1:21:10Break in to the projectile collision detection loop in UpdateAndRenderEntities()

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1:21:38Toggle on collision volume drawing in UpdateAndRenderEntities()

1:21:58The glove obviously collides with the snake

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1:21:58The glove obviously collides with the snake

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1:21:58The glove obviously collides with the snake

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1:22:46Fix SnakePattern() to OR in EntityFlag_ReceivesCollision

1:23:37Reacquaint ourselves with EntityOverlapsEntity()

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1:23:37Reacquaint ourselves with EntityOverlapsEntity()

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1:23:37Reacquaint ourselves with EntityOverlapsEntity()

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1:24:46Separate out the ReceivesCollision and EntityOverlapsEntity() checks in UpdateAndRenderEntities()

1:26:42Try unsuccessfully to break in to the projectile collision detection loop in UpdateAndRenderEntities()

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1:26:42Try unsuccessfully to break in to the projectile collision detection loop in UpdateAndRenderEntities()

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1:26:42Try unsuccessfully to break in to the projectile collision detection loop in UpdateAndRenderEntities()

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1:27:26Set EntityFlag_ReceivesCollision to 1 << 3

1:27:55Scour the projectile collision detection loop for bugs

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1:27:55Scour the projectile collision detection loop for bugs

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1:27:55Scour the projectile collision detection loop for bugs

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1:28:09Fix UpdateAndRenderEntities() to set Check to the CheckIter.Entity

1:28:21Restart the game into our empty room

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1:28:21Restart the game into our empty room

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1:28:21Restart the game into our empty room

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1:28:25Make CreateOrphanage() generate a snake in the FloorEntranceRoom

1:30:43Try unsuccessfully to punch a snake

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1:30:43Try unsuccessfully to punch a snake

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1:30:43Try unsuccessfully to punch a snake

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1:31:14Break in to the projectile collision detection loop

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1:31:14Break in to the projectile collision detection loop

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1:31:14Break in to the projectile collision detection loop

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1:32:19Fix the loop increment direction in ApplyDamage()

1:32:44Try unsuccessfully to add a breakpoint on ApplyDamage()

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1:32:44Try unsuccessfully to add a breakpoint on ApplyDamage()

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1:32:44Try unsuccessfully to add a breakpoint on ApplyDamage()

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1:33:05Break on CollisionResolve() and inspect the disassembly

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1:33:05Break on CollisionResolve() and inspect the disassembly

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1:33:05Break on CollisionResolve() and inspect the disassembly

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1:33:36Scour ApplyDamage() for bugs

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1:33:36Scour ApplyDamage() for bugs

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1:33:36Scour ApplyDamage() for bugs

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1:34:37Break on CollisionResolve() in -Od, step through ApplyDamage(), and successfully damage the snake

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1:34:37Break on CollisionResolve() in -Od, step through ApplyDamage(), and successfully damage the snake

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1:34:37Break on CollisionResolve() in -Od, step through ApplyDamage(), and successfully damage the snake

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1:36:46Rebuild in -O2 and successfully damage the snake

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1:36:46Rebuild in -O2 and successfully damage the snake

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1:36:46Rebuild in -O2 and successfully damage the snake

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1:37:31Enable ApplyDamage() to call DeleteEntity() upon death and only apply damage to active entities, introducing IsActive()

1:40:17coffeeeeeeeeeee Are you going to implement critical hits?

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1:40:17coffeeeeeeeeeee Are you going to implement critical hits?

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1:40:17coffeeeeeeeeeee Are you going to implement critical hits?

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1:41:23Successfully punch the snake to death

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1:41:23Successfully punch the snake to death

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1:41:23Successfully punch the snake to death

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1:42:34Reacquaint ourselves with DeleteEntity()

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1:42:34Reacquaint ourselves with DeleteEntity()

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1:42:34Reacquaint ourselves with DeleteEntity()

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1:43:59Delete TestWall() and test_wall

1:44:24Reacquaint ourselves with TransactionalOccupy()

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1:44:24Reacquaint ourselves with TransactionalOccupy()

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1:44:24Reacquaint ourselves with TransactionalOccupy()

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1:45:42Make DeleteEntity() vacate the occupied tile, introducing Vacate()

1:48:58Punch snakes to death, and successfully walk where they were

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1:48:58Punch snakes to death, and successfully walk where they were

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1:48:58Punch snakes to death, and successfully walk where they were

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1:51:54Remove BoxIndex_Down and BoxIndex_Up, and related stairwell code

1:55:07Hit the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:55:07Hit the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:55:07Hit the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:55:44Decrease FloorCount from 4 to 1 in CreateDungeon()

1:55:50Still hit the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:55:50Still hit the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:55:50Still hit the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:56:18Reacquaint ourselves with the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:56:18Reacquaint ourselves with the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:56:18Reacquaint ourselves with the Room->GenerationIndex == GenerationIndex assertion in Layout()

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1:57:28Comment out the Room->GenerationIndex == GenerationIndex assertion in Layout()

1:57:39Hit assertion on PlaceEntityAtP() in StandardLightingPattern()

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1:57:39Hit assertion on PlaceEntityAtP() in StandardLightingPattern()

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1:57:39Hit assertion on PlaceEntityAtP() in StandardLightingPattern()

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1:57:51Consider making the procedural generation code more direct

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1:57:51Consider making the procedural generation code more direct

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1:57:51Consider making the procedural generation code more direct

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2:03:32Consider making the forest area not room-based

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2:03:32Consider making the forest area not room-based

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2:03:32Consider making the forest area not room-based

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2:05:32Plan to work on world generation next time

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2:05:32Plan to work on world generation next time

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2:05:32Plan to work on world generation next time

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2:08:49That's it for today

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2:08:49That's it for today

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2:08:49That's it for today

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