Stepping Through Diagrams — Handmade Hero — Episode Guide

0:00Recap and set the stage for the day

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0:00Recap and set the stage for the day

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0:00Recap and set the stage for the day

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0:20Try to reproduce our tunnelling bug

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0:20Try to reproduce our tunnelling bug

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0:20Try to reproduce our tunnelling bug

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2:36Hit a corner embedding bug

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2:36Hit a corner embedding bug

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2:36Hit a corner embedding bug

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5:12Diagramming displacement upon camera re-centering

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5:12Diagramming displacement upon camera re-centering

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5:12Diagramming displacement upon camera re-centering

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10:40Double-check that we checked Day 643

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10:40Double-check that we checked Day 643

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10:40Double-check that we checked Day 643

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11:21Consider re-centering the debug visualisation with the camera

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11:21Consider re-centering the debug visualisation with the camera

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11:21Consider re-centering the debug visualisation with the camera

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13:11Introduce OffsetDebugDiagrams() for UpdateAndRenderWorld() to call

17:48Reacquaint ourselves with the lighting re-centering code

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17:48Reacquaint ourselves with the lighting re-centering code

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17:48Reacquaint ourselves with the lighting re-centering code

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20:10Unify the camera offset, introducing DIAGRAM_SetOrigin() and augmenting diagram_group with LastOriginP

27:49Our diagram offsetting is slightly off

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27:49Our diagram offsetting is slightly off

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27:49Our diagram offsetting is slightly off

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27:58Fix the Diagram_Sphere case in DIAGRAM_SetOrigin()

28:27Our diagram offsetting remains slightly off

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28:27Our diagram offsetting remains slightly off

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28:27Our diagram offsetting remains slightly off

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28:36Invert the Offset computation in DIAGRAM_SetOrigin()

29:02Our diagram offsetting remains slightly off

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29:02Our diagram offsetting remains slightly off

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29:02Our diagram offsetting remains slightly off

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29:26Investigate our incorrect offsetting in DIAGRAM_SetOrigin()

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29:26Investigate our incorrect offsetting in DIAGRAM_SetOrigin()

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29:26Investigate our incorrect offsetting in DIAGRAM_SetOrigin()

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32:49Revert the orientation of the Offset computation in DIAGRAM_SetOrigin()

33:04Try to understand our offsetting incorrectness

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33:04Try to understand our offsetting incorrectness

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33:04Try to understand our offsetting incorrectness

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35:37Investigate our incorrect offsetting in DIAGRAM_SetOrigin() (cont.)

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35:37Investigate our incorrect offsetting in DIAGRAM_SetOrigin() (cont.)

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35:37Investigate our incorrect offsetting in DIAGRAM_SetOrigin() (cont.)

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37:08Step in to DIAGRAM_SetOrigin()

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37:08Step in to DIAGRAM_SetOrigin()

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37:08Step in to DIAGRAM_SetOrigin()

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39:11Make DIAGRAM_SetOrigin() offset the diagrams when LastOriginP and OriginP differ

39:47Our diagram offsetting is now perfect

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39:47Our diagram offsetting is now perfect

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39:47Our diagram offsetting is now perfect

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40:30Demo the need for stepping through diagrams

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40:30Demo the need for stepping through diagrams

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40:30Demo the need for stepping through diagrams

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41:31Plan to support stepping through diagrams

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41:31Plan to support stepping through diagrams

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41:31Plan to support stepping through diagrams

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43:15Enable RenderDiagrams() to filter diagrams

54:27We see no diagrams

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54:27We see no diagrams

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54:27We see no diagrams

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54:41Make RenderDiagrams() initialise ShouldDraw to true

55:01We see diagrams

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55:01We see diagrams

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55:01We see diagrams

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55:08Discover 4coder Fleury right-clicking purple

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55:08Discover 4coder Fleury right-clicking purple

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55:08Discover 4coder Fleury right-clicking purple

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56:10Make CollisionEditor() create diagram filter hierarchy stepping buttons

1:01:49Try out our diagram filter buttons

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1:01:49Try out our diagram filter buttons

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1:01:49Try out our diagram filter buttons

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1:02:38Make CollisionEditor() draw the Up / Down buttons on the same line

1:03:03Try out our diagram filter buttons

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1:03:03Try out our diagram filter buttons

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1:03:03Try out our diagram filter buttons

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1:03:18Make CollisionEditor() create a diagram stepping slider

1:05:10Hit a read access violation in EditablePx()

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1:05:10Hit a read access violation in EditablePx()

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1:05:10Hit a read access violation in EditablePx()

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1:05:30Fix CollisionEditor() to only create the diagram stepping slider when valid

1:05:46Try out our diagram stepping slider

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1:05:46Try out our diagram stepping slider

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1:05:46Try out our diagram stepping slider

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1:06:08Fix CollisionEditor() to print the filter max depth as a u32

1:06:28Try out our diagram stepping slider

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1:06:28Try out our diagram stepping slider

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1:06:28Try out our diagram stepping slider

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1:07:11Scour RenderDiagrams() for bugs

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1:07:11Scour RenderDiagrams() for bugs

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1:07:11Scour RenderDiagrams() for bugs

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1:08:49Reduce the verbosity of RenderDiagrams()

1:09:25Scour RenderDiagrams() for bugs (cont.)

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1:09:25Scour RenderDiagrams() for bugs (cont.)

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1:09:25Scour RenderDiagrams() for bugs (cont.)

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1:10:23Fix RenderDiagrams() to set whether we ShouldDraw a filter level, before preparing ShouldDraw for the next filter level

1:10:43Try out our diagram filtering buttons and stepping slider

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1:10:43Try out our diagram filtering buttons and stepping slider

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1:10:43Try out our diagram filtering buttons and stepping slider

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1:11:56Make EditablePx() take a specified dX value

1:12:58Try out our more precise diagram stepping slider

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1:12:58Try out our more precise diagram stepping slider

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1:12:58Try out our more precise diagram stepping slider

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1:13:14Surpassing the total diagram count is problematic

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1:13:14Surpassing the total diagram count is problematic

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1:13:14Surpassing the total diagram count is problematic

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1:14:02Scour RenderDiagrams() for diagram stepping bugs (cont.)

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1:14:02Scour RenderDiagrams() for diagram stepping bugs (cont.)

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1:14:02Scour RenderDiagrams() for diagram stepping bugs (cont.)

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1:15:35Make RenderDiagrams() assert that DiagramDepth ends up 0

1:15:55Hit that assertion in RenderDiagrams()

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1:15:55Hit that assertion in RenderDiagrams()

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1:15:55Hit that assertion in RenderDiagrams()

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1:16:01Check if our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:16:01Check if our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:16:01Check if our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:17:13Hit that assertion in RenderDiagrams() and see that DiagramDepth ends up 1

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1:17:13Hit that assertion in RenderDiagrams() and see that DiagramDepth ends up 1

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1:17:13Hit that assertion in RenderDiagrams() and see that DiagramDepth ends up 1

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1:19:10Consider how best to balance the DIAGRAM_Begin() and DIAGRAM_End() calls in the "Collision Voxel" loop of MoveEntity()

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1:19:10Consider how best to balance the DIAGRAM_Begin() and DIAGRAM_End() calls in the "Collision Voxel" loop of MoveEntity()

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1:19:10Consider how best to balance the DIAGRAM_Begin() and DIAGRAM_End() calls in the "Collision Voxel" loop of MoveEntity()

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1:21:42Balance the DIAGRAM_Begin() and DIAGRAM_End() calls in the "Collision Voxel" loop of MoveEntity()

1:22:29Still hit the DiagramDepth == 0 assertion in RenderDiagrams()

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1:22:29Still hit the DiagramDepth == 0 assertion in RenderDiagrams()

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1:22:29Still hit the DiagramDepth == 0 assertion in RenderDiagrams()

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1:23:24Double-check that our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:23:24Double-check that our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:23:24Double-check that our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:24:23Try unsuccessfully to hit our DiagramDepth == 0 assertion in -Od

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1:24:23Try unsuccessfully to hit our DiagramDepth == 0 assertion in -Od

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1:24:23Try unsuccessfully to hit our DiagramDepth == 0 assertion in -Od

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1:25:42Hit the DiagramDepth == 0 assertion in -O2 and see from the asm that DiagramDepth ends up 1

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1:25:42Hit the DiagramDepth == 0 assertion in -O2 and see from the asm that DiagramDepth ends up 1

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1:25:42Hit the DiagramDepth == 0 assertion in -O2 and see from the asm that DiagramDepth ends up 1

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1:26:36Double-check that our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:26:36Double-check that our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:26:36Double-check that our DIAGRAM_Begin() and DIAGRAM_End() calls are balanced

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1:27:32Fix MoveEntity() to call DIAGRAM_End() before DIAGRAM_Capture()

1:27:58Try stepping through our diagrams

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1:27:58Try stepping through our diagrams

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1:27:58Try stepping through our diagrams

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1:29:31Scour RenderDiagrams() for diagram filtering bugs

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1:29:31Scour RenderDiagrams() for diagram filtering bugs

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1:29:31Scour RenderDiagrams() for diagram filtering bugs

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1:31:23Fix RenderDiagrams() to reset the DiagramIndex to 0 on Diagram_End

1:32:07Try stepping through our diagrams at various filter levels

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1:32:07Try stepping through our diagrams at various filter levels

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1:32:07Try stepping through our diagrams at various filter levels

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1:34:49Try setting FundamentalUnit to 1.375 in PlayWorld(), to make that and MOTION_DISPLACEMENT_SIZE well-defined in relation to each other

1:37:00Our glove still gets stuck

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1:37:00Our glove still gets stuck

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1:37:00Our glove still gets stuck

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1:37:14Our simulation centres don't move by an even amount

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1:37:14Our simulation centres don't move by an even amount

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1:37:14Our simulation centres don't move by an even amount

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1:37:52Consider fixing our collision voxel sliding issue

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1:37:52Consider fixing our collision voxel sliding issue

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1:37:52Consider fixing our collision voxel sliding issue

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1:38:17Reacquaint ourselves with the simulation centering code in UpdateCameraForEntityMovement()

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1:38:17Reacquaint ourselves with the simulation centering code in UpdateCameraForEntityMovement()

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1:38:17Reacquaint ourselves with the simulation centering code in UpdateCameraForEntityMovement()

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1:39:17Consider rounding the SimulationCenter to the FundamentalUnit

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1:39:17Consider rounding the SimulationCenter to the FundamentalUnit

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1:39:17Consider rounding the SimulationCenter to the FundamentalUnit

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1:41:04Revert the FundamentalUnit to 1.4 in PlayWorld(), and make UpdateCameraForEntityMovement() round the SimulationCenter to the MOTION_DISPLACEMENT_SIZE

1:42:22No longer hit that camera movement-based sticking bug

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1:42:22No longer hit that camera movement-based sticking bug

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1:42:22No longer hit that camera movement-based sticking bug

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1:43:09Embed in a wall, and step through the diagrams

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1:43:09Embed in a wall, and step through the diagrams

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1:43:09Embed in a wall, and step through the diagrams

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1:44:48Introduce AlignToMovementVoxel() for UpdateCameraForEntityMovement() to call

1:48:12Reflect on our diagram stepping

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1:48:12Reflect on our diagram stepping

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1:48:12Reflect on our diagram stepping

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1:49:03Hit a collision detection bug

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1:49:03Hit a collision detection bug

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1:49:03Hit a collision detection bug

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1:50:02Investigate our collision detection bug

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1:50:02Investigate our collision detection bug

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1:50:02Investigate our collision detection bug

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1:51:35Reproduce a collision detection bug

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1:51:35Reproduce a collision detection bug

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1:51:35Reproduce a collision detection bug

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1:52:29Consider enabling ShapesCollide() to dump the diagram data

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1:52:29Consider enabling ShapesCollide() to dump the diagram data

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1:52:29Consider enabling ShapesCollide() to dump the diagram data

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1:57:14Q&A

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1:57:14Q&A

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1:57:14Q&A

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1:57:35sir_klausi Maybe it's a gigantic box and not a little one?

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1:57:35sir_klausi Maybe it's a gigantic box and not a little one?

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1:57:35sir_klausi Maybe it's a gigantic box and not a little one?

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1:57:49mindmark42 Q: Could it be the hero's head? Odd it's not drawing it

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1:57:49mindmark42 Q: Could it be the hero's head? Odd it's not drawing it

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1:57:49mindmark42 Q: Could it be the hero's head? Odd it's not drawing it

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1:58:11centhusiast Q: Can we move diagonally in the game?

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1:58:11centhusiast Q: Can we move diagonally in the game?

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1:58:11centhusiast Q: Can we move diagonally in the game?

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1:58:25vaualbus Q: Can we not write somewhere like in the debug output the box P and size?

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1:58:25vaualbus Q: Can we not write somewhere like in the debug output the box P and size?

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1:58:25vaualbus Q: Can we not write somewhere like in the debug output the box P and size?

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1:59:27mindmark42 Q: Is the refinement still running?

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1:59:27mindmark42 Q: Is the refinement still running?

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1:59:27mindmark42 Q: Is the refinement still running?

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1:59:43longboolean Q: So is the bug that it got this bug in the corner and then it got launched into the wall, explaining the tunneling?

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1:59:43longboolean Q: So is the bug that it got this bug in the corner and then it got launched into the wall, explaining the tunneling?

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1:59:43longboolean Q: So is the bug that it got this bug in the corner and then it got launched into the wall, explaining the tunneling?

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1:59:57centhusiast Q: Do we still use the entity cache system? I remember it was a cool thing introduced in Handmade Hero

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1:59:57centhusiast Q: Do we still use the entity cache system? I remember it was a cool thing introduced in Handmade Hero

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1:59:57centhusiast Q: Do we still use the entity cache system? I remember it was a cool thing introduced in Handmade Hero

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2:00:45longboolean Q: So you don't think the mystery box pushed it into the wall?

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2:00:45longboolean Q: So you don't think the mystery box pushed it into the wall?

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2:00:45longboolean Q: So you don't think the mystery box pushed it into the wall?

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2:01:57sagian2005 Q: Maybe the opposite is happening here: It's colliding then the camera is moving?

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2:01:57sagian2005 Q: Maybe the opposite is happening here: It's colliding then the camera is moving?

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2:01:57sagian2005 Q: Maybe the opposite is happening here: It's colliding then the camera is moving?

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2:02:03Try to reproduce our collision detection bug

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2:02:03Try to reproduce our collision detection bug

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2:02:03Try to reproduce our collision detection bug

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2:05:12okprogamer Q: We can ask general questions now?

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2:05:12okprogamer Q: We can ask general questions now?

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2:05:12okprogamer Q: We can ask general questions now?

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2:05:33Try to reproduce our collision detection bug (cont.)

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2:05:33Try to reproduce our collision detection bug (cont.)

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2:05:33Try to reproduce our collision detection bug (cont.)

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2:06:00Step through the diagrams of our collision detection bug

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2:06:00Step through the diagrams of our collision detection bug

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2:06:00Step through the diagrams of our collision detection bug

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2:08:51sagian2005 Q: What is that line going off to the left?

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2:08:51sagian2005 Q: What is that line going off to the left?

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2:08:51sagian2005 Q: What is that line going off to the left?

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2:09:34ablindorphan Q: Are the direction indicators normalised? Any way to also visualise the magnitude?

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2:09:34ablindorphan Q: Are the direction indicators normalised? Any way to also visualise the magnitude?

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2:09:34ablindorphan Q: Are the direction indicators normalised? Any way to also visualise the magnitude?

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2:11:40Investigate the possibility of us having an inverted phantom box

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2:11:40Investigate the possibility of us having an inverted phantom box

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2:11:40Investigate the possibility of us having an inverted phantom box

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2:12:29Assert in ShapesCollide() that each box HasArea()

2:13:04Hit our assertion in ShapesCollide()

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2:13:04Hit our assertion in ShapesCollide()

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2:13:04Hit our assertion in ShapesCollide()

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2:13:37Hit our assertion in ShapesCollide() in -Od and inspect the phantom boxes

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2:13:37Hit our assertion in ShapesCollide() in -Od and inspect the phantom boxes

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2:13:37Hit our assertion in ShapesCollide() in -Od and inspect the phantom boxes

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2:15:04Make CollidesAtP() only check for collisions if the TestEntity->CollisionVolume HasArea()

2:16:44Provisionally consider our collision detection bug to be fixed

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2:16:44Provisionally consider our collision detection bug to be fixed

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2:16:44Provisionally consider our collision detection bug to be fixed

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2:18:26Wrap it up with a plug of Meow the Infinite: Book Two¹

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2:18:26Wrap it up with a plug of Meow the Infinite: Book Two¹

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2:18:26Wrap it up with a plug of Meow the Infinite: Book Two¹

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2:19:46sagian2005 Your camera is still flipped. Meow is backwards

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2:19:46sagian2005 Your camera is still flipped. Meow is backwards

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2:19:46sagian2005 Your camera is still flipped. Meow is backwards

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2:20:19Finish wrapping it up with the determination to see what those phantom entities were, and plugs of the Cryptocurrency interviews and Babylon 5 season one recap with Jonas Kyratzes

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2:20:19Finish wrapping it up with the determination to see what those phantom entities were, and plugs of the Cryptocurrency interviews and Babylon 5 season one recap with Jonas Kyratzes

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2:20:19Finish wrapping it up with the determination to see what those phantom entities were, and plugs of the Cryptocurrency interviews and Babylon 5 season one recap with Jonas Kyratzes

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