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Basic Tile Map Collision Checking

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Kasper Sauramo

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Ben Craddock

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Previous: 'Drawing a Tile Map'

2:30Review of what's currently been done

2:30Review of what's currently been done

2:30Review of what's currently been done

3:17Clearing the screen to black and offsetting the drawable area

3:17Clearing the screen to black and offsetting the drawable area

3:17Clearing the screen to black and offsetting the drawable area

6:49Player collision with the tilemap

6:49Player collision with the tilemap

6:49Player collision with the tilemap

17:23Moving player initial position inside the map

17:23Moving player initial position inside the map

17:23Moving player initial position inside the map

20:31Clearing only the parts of the screen not drawn on

20:31Clearing only the parts of the screen not drawn on

20:31Clearing only the parts of the screen not drawn on

23:10Function for checking if a point is occupied and tile_map struct

23:10Function for checking if a point is occupied and tile_map struct

23:10Function for checking if a point is occupied and tile_map struct

27:05Accessing tilemap data as 1-dimensional array

27:05Accessing tilemap data as 1-dimensional array

27:05Accessing tilemap data as 1-dimensional array

35:16Adding player width to the collision

35:16Adding player width to the collision

35:16Adding player width to the collision

37:50Making player change the map when walking through a door

37:50Making player change the map when walking through a door

37:50Making player change the map when walking through a door

43:56About storing all tilemaps in one big structure

43:56About storing all tilemaps in one big structure

43:56About storing all tilemaps in one big structure

50:28Start on storing and accessing multiple tilemaps and the world struct

50:28Start on storing and accessing multiple tilemaps and the world struct

50:28Start on storing and accessing multiple tilemaps and the world struct

1:01:00Short recap on where we are

1:01:00Short recap on where we are

1:01:00Short recap on where we are

1:02:16Q&A

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1:02:16Q&A

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1:02:16Q&A

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1:03:10John Blow points out we haven't initialised the world struct members

1:03:10John Blow points out we haven't initialised the world struct members

1:03:10John Blow points out we haven't initialised the world struct members

1:03:43Question: Why does player sometimes stop a pixel before the wall?

1:03:43Question: Why does player sometimes stop a pixel before the wall?

1:03:43Question: Why does player sometimes stop a pixel before the wall?

1:14:36Question: Are your variables for tilemaps too similar to each other or am I just easily confused?

1:14:36Question: Are your variables for tilemaps too similar to each other or am I just easily confused?

1:14:36Question: Are your variables for tilemaps too similar to each other or am I just easily confused?

1:16:12Question: Is there an advantage on using bool32 instead of using bool 8-bit?

1:16:12Question: Is there an advantage on using bool32 instead of using bool 8-bit?

1:16:12Question: Is there an advantage on using bool32 instead of using bool 8-bit?

1:17:07Question: Can you go over briefly how to encode the tile data in a single uint32?

1:17:07Question: Can you go over briefly how to encode the tile data in a single uint32?

1:17:07Question: Can you go over briefly how to encode the tile data in a single uint32?

1:17:55Question: Why does left and right side collision work but not the top and bottom?

1:17:55Question: Why does left and right side collision work but not the top and bottom?

1:17:55Question: Why does left and right side collision work but not the top and bottom?

1:20:43Question: Why save TileWidth and Height if those values never change?

1:20:43Question: Why save TileWidth and Height if those values never change?

1:20:43Question: Why save TileWidth and Height if those values never change?

1:21:02Question: What are the differences between structs and classes?

1:21:02Question: What are the differences between structs and classes?

1:21:02Question: What are the differences between structs and classes?

1:23:14Question: Do you always put int32 or can you use only int?

1:23:14Question: Do you always put int32 or can you use only int?

1:23:14Question: Do you always put int32 or can you use only int?

1:24:45Question: So int32 is because you want to make the game for 32bit computers?

1:24:45Question: So int32 is because you want to make the game for 32bit computers?

1:24:45Question: So int32 is because you want to make the game for 32bit computers?

1:26:05The player moves faster diagonally than it's supposed to. Are you planning on fixing that?

1:26:05The player moves faster diagonally than it's supposed to. Are you planning on fixing that?

1:26:05The player moves faster diagonally than it's supposed to. Are you planning on fixing that?

1:27:10Question: I'm not familiar with #define, what is it used for?

1:27:10Question: I'm not familiar with #define, what is it used for?

1:27:10Question: I'm not familiar with #define, what is it used for?

1:28:34Question: When you use int32 does it have a different influence on the code than normal ints?

1:28:34Question: When you use int32 does it have a different influence on the code than normal ints?

1:28:34Question: When you use int32 does it have a different influence on the code than normal ints?

1:30:05Making the platform header C compliant

1:30:05Making the platform header C compliant

1:30:05Making the platform header C compliant

Next: 'Moving Between Tile Maps'