Spelunky Source

[Svenski]

The way level generation works is from what I see:

A 4x4 grid (different sizes for cave, jungle and ice) is made for each level, each square represents one 10x8 block mini-room inside the level. A path through the grid is made, and then different premade mini-rooms with slight random variations are placed in each square depending on the path and how the spelunker needs to get through it.

For example where the path of the level travels through a square in the 4x4 grid from left to right, a 10x8 mini-room will be placed that is known to be transversable from left to right will be placed. Squares which the spelunker does not travel through are randomly selected.

the 4x4 grid is generated in scrLevelGen and the placement of the 10x8 blocks are in scrRoomGen, you can understand what symbol means what with this :

Code:

0 -empty
1 -block (1/10 pushable)
2 -block (1/2 chance of create) (1/10 pushable)
L -Ladder
P -Ladder top
7 -spikes
4 -pushable block
9 -entrance/exit
A -altar
x -sacrificial altar
a -chest
I -idol
C -crystal idol
B -spikehead
+ -block looks like pushable
K -shopkeeper
i -shop item
W -wanted poster
k -shop sign
w -water
v -bottom water
J -fishboss
T -tree
D -damsel

[DariusK]

Hi Derek,

I found a minor bug in the source code. In the oPlayer1 object, in the Step Event, in the third block of code (the one that covers player damage/death), on line 148 you see the following:

Code:

obj = collision_rectangle(x-6, y-6, x+6, y+7, oSpearsLeft, 0, 0); instance_nearest(x, y, oSpearsLeft);
if (obj)
{
    ...

The instance_nearest is older deprecated code, it should be commented out like you see on line 189, so it looks like this:

Code:

obj = collision_rectangle(x-6, y-6, x+6, y+7, oSpearsLeft, 0, 0); //instance_nearest(x, y, oSpearsLeft);
if (obj)
{
    ...

Not that this *does* anything, but it should probably be cleaned up.

[DariusK]

And another bug. The panning on the damsel's yell has always been off for me -- when I'm standing to the right of the damsel, I hear her on the right channel, and when I'm standing to the left of the damsel, I hear her on the left channel.

Basically, in this scenario, when she yells, I hear it on the left channel.

      
 

In the oDamsel step function, line 199, we see the following code:

Code:

        if (oPlayer1.x < x) SS_SetSoundPan(global.sndDamsel, -10000);
        else if (oPlayer1.x > x) SS_SetSoundPan(global.sndDamsel, 10000);
        else SS_SetSoundPan(global.sndDamsel, 0);
        playSound(global.sndDamsel);

What that says is, "if the player is to the left of the damsel, pan her yelling sound hard left." (See SS_SetSoundPan, which says at the top of the script that -10000 is full left pan.) Which is what I've observed, and it's the opposite of what we want!

Also, if this isn't the appropriate place to be posting bugs I find in the source code, please let me know!!

[marsgreekgod]

I think it woudl be more likely to get a hold of him in the bug area of the forum. it is the reason it exists!

[DariusK]

Hm, I see your point but I thought that was for bugs in the game, not in the source code? Anyway, I'll post there, thanks!

[Sudonimus]

People have gotten really serious with Spelunky since the Source...
Maybe if we waited a while...

[Arucard]

Well regarding this bug specifically, it has been reported numerous times on numerous versions. Most likely it's such a small change Derek either keeps missing it, or is more focused on fixing bigger bugs. And Darius has always been serious about Spelunky's code, he just waited until the source release to talk about it much here.

[gummybears123]

People have gotten really serious with Spelunky since the Source...
Maybe if we waited a while...

Are you implying we SHOULDN'T make mods?

[Arucard]

It sounded to me like he was talking about the bugs, as in wait for Derek to fix them. But the previous post was put up a while back, I'm not sure if he noticed or not.