How to make game speed up as score increases? (4.5.9)

ProjectAsinus · Mar 12, 2024

Like it says in the title, I am trying to find out how to make the game speed up each time a specific score milestone is achieved (like, speed up at 2000 points, speed up at 5000, etc.). Kind of like how Tetris works. how would I go about doing this? This is one of the last touches I need before submitting my Byte-Off entry

smilehero65 · Mar 12, 2024

ProjectAsinus said:
Like it says in the title, I am trying to find out how to make the game speed up each time a specific score milestone is achieved (like, speed up at 2000 points, speed up at 5000, etc.). Kind of like how Tetris works. how would I go about doing this? This is one of the last touches I need before submitting my Byte-Off entry

I think I have an answer

Create a variable called MyLevel, initialize it in 0 or 1
Go to your Physics Script
Go to the line that looks like this:

Code:

        LDY Object_type,x
        LDA ObjectMaxSpeed,y
        ASL
        ASL
        ASL
        ASL
        ;AND #%00001111
        STA myMaxSpeed
        LDA ObjectMaxSpeed,y
        LSR
        LSR
        LSR
        LSR
        STA myMaxSpeed+1

4. Replace the lines with these:

Code:

LDY Object_type,x
        LDA ObjectMaxSpeed,y ;;;Load Max Speed
        ADC myLevel         ;;;;;;;Add Max Speed to the value of myLevel
        STA tempA
        
        LDA tempA
        ASL
        ASL
        ASL
        ASL
        ;AND #%00001111
        STA myMaxSpeed
        LDA tempA
        LSR
        LSR
        LSR
        LSR
        STA myMaxSpeed+1

5. Now you just need to select when to increase the value of MyLevel

I think it should be good.
I didn't test this, so please let me know if anything arises.

Side Note - this code is based on Dale Coop's Holding B to Run

[4.5.9] Holding B to Run

A small tutorial to show how to implement the Holding B to Run in your projects. The principle is simple, we'll modify the Physics to modify the speed when B is pressed. INSTRUCTIONS Modify your Handle Physics script (you can find it in the "Project Settings > Script Settigns" under...

www.nesmakers.com

ProjectAsinus · Mar 12, 2024

smilehero65 said:
I think I have an answer

Create a variable called MyLevel, initialize it in 0 or 1

Go to your Physics Script

Go to the line that looks like this:

Code:

LDY Object_type,x LDA ObjectMaxSpeed,y ASL ASL ASL ASL ;AND #%00001111 STA myMaxSpeed LDA ObjectMaxSpeed,y LSR LSR LSR LSR STA myMaxSpeed+1

4. Replace the lines with these:

Code:

LDY Object_type,x LDA ObjectMaxSpeed,y ;;;Load Max Speed ADC myLevel ;;;;;;;Add Max Speed to the value of myLevel STA tempA LDA tempA ASL ASL ASL ASL ;AND #%00001111 STA myMaxSpeed LDA tempA LSR LSR LSR LSR STA myMaxSpeed+1

5. Now you just need to select when to increase the value of MyLevel

I think it should be good.
I didn't test this, so please let me know if anything arises.

Side Note - this code is based on Dale Coop's Holding B to Run

[4.5.9] Holding B to Run

A small tutorial to show how to implement the Holding B to Run in your projects. The principle is simple, we'll modify the Physics to modify the speed when B is pressed. INSTRUCTIONS Modify your Handle Physics script (you can find it in the "Project Settings > Script Settigns" under...

www.nesmakers.com

For some reason, after doing that the score isn't increasing right. Any time I add a new variable it seems to mess something up and I'm not sure why. I updated the ROM in Google Drive if you want to see for yourself

ProjectAsinus · Mar 12, 2024

After a quick test, the error only occurs if the following code is applied to the Monster Hurt script:

Code:

LDA myScore
            CMP #$2000
            BEQ +levelup
            JMP +nextlevel
            +levelup
            INC myLevel
            
            +nextlevel
            CMP #$5000
            BEQ +levelup1
            JMP +nextlevel1
            +levelup1
            INC myLevel
            
            +nextlevel1
            CMP #$7500
            BEQ +levelup2
            JMP +endlevel
            +levelup2
            INC myLevel
            
            +endlevel

smilehero65 · Mar 12, 2024

ProjectAsinus said:

After a quick test, the error only occurs if the following code is applied to the Monster Hurt script:

Code:

LDA myScore
            CMP #$2000
            BEQ +levelup
            JMP +nextlevel
            +levelup
            INC myLevel
          
            +nextlevel
            CMP #$5000
            BEQ +levelup1
            JMP +nextlevel1
            +levelup1
            INC myLevel
          
            +nextlevel1
            CMP #$7500
            BEQ +levelup2
            JMP +endlevel
            +levelup2
            INC myLevel
          
            +endlevel

I see the issue
There is no such thing as a #$2000 in hexadecimal.

The minimum hex is #$00, the max is #$FF (255)
The way you check score code is through the myScore_00X whatever variables.
The game checks for the leader number of the zeroes.

To check if your score is 2,000, I think you should do it this way:

Code:

LDA myScore_0000
CMP #2

The same could go for 5,000

Code:

LDA myScore_0000
CMP #5

Or if you would want to check for, let's say... 60,000, then it should be:

Code:

LDA myScore_00000
CMP #6

It is not a very easy concept (I don't think I explained myself well lol)
Hope it helps!

ProjectAsinus · Mar 12, 2024

smilehero65 said:
I see the issue
There is no such thing as a #$2000 in hexadecimal.

The minimum hex is #$00, the max is #$FF (255)
The way you check score code is through the myScore_00X whatever variables.
The game checks for the leader number of the zeroes.

To check if your score is 2,000, I think you should do it this way:

Code:

LDA myScore_0000 CMP #2

The same could go for 5,000

Code:

LDA myScore_0000 CMP #5

Or if you would want to check for, let's say... 60,000, then it should be:

Code:

LDA myScore_00000 CMP #6

It is not a very easy concept (I don't think I explained myself well lol)
Hope it helps!

Tried this, but now it says "unknown label" (when referring to myScore_0000).

smilehero65 · Mar 12, 2024

ProjectAsinus said:
Tried this, but now it says "unknown label" (when referring to myScore_0000).

Can I see your Score variables in UserVariables and your code also?

ProjectAsinus · Mar 12, 2024

Code:

    LDA myScore_0000
            CMP #2
            BEQ +levelup
            JMP +nextlevel
            +levelup
            INC myLevel
            
            +nextlevel
            CMP #5
            BEQ +levelup1
            JMP +nextlevel1
            +levelup1
            INC myLevel
            
            +nextlevel1
            CMP #7
            BEQ +levelup2
            JMP +endlevel
            +levelup2
            INC myLevel
            
            +endlevel

smilehero65 · Mar 13, 2024

ProjectAsinus said:

View attachment 8016

Code:

    LDA myScore_0000
            CMP #2
            BEQ +levelup
            JMP +nextlevel
            +levelup
            INC myLevel
           
            +nextlevel
            CMP #5
            BEQ +levelup1
            JMP +nextlevel1
            +levelup1
            INC myLevel
           
            +nextlevel1
            CMP #7
            BEQ +levelup2
            JMP +endlevel
            +levelup2
            INC myLevel
           
            +endlevel

Oh...well... of course...
Because myScore_0000 didn't exist.
This was basically the structure I was referring to:

(This is from the Maze Module...you should check the tutorials)

Seems like you will need to update the method of managing your score.

ProjectAsinus · Mar 13, 2024

smilehero65 said:
Oh...well... of course...
Because myScore_0000 didn't exist.
This was basically the structure I was referring to:

View attachment 8017
(This is from the Maze Module...you should check the tutorials)

Seems like you will need to update the method of managing your score.

Oh, that makes sense. I'll try it this way then. But that also means I'd need to increase the score differently, wouldn't it?

smilehero65 · Mar 13, 2024

ProjectAsinus said:
Oh, that makes sense. I'll try it this way then. But that also means I'd need to increase the score differently, wouldn't it?

Yeah.
You would use the macro AddValue instead of just using INC or ADC.

ProjectAsinus · Mar 13, 2024

After changing the variables, now I get this:

smilehero65 · Mar 13, 2024

ProjectAsinus said:
After changing the variables, now I get this:View attachment 8018

(...this damn janky engine...)
Did u checked the variables in your HUD?

ProjectAsinus · Mar 13, 2024

Yes, I changed them all to fit the new variables. That’s when the error occurred (before I did that it just said “myScore” didn’t exist)

smilehero65 · Mar 13, 2024

ProjectAsinus said:
Yes, I changed them all to fit the new variables. That’s when the error occurred (before I did that it just said “myScore” didn’t exist)

Maybe there is a place where you mention myScore variable?

ProjectAsinus · Mar 13, 2024

smilehero65 said:
Maybe there is a place where you mention myScore variable?

Not likely, I made the variable myself and the only time I ever mentioned it in the script was the AddValue macro (which I’ve now changed)

smilehero65 · Mar 13, 2024

ProjectAsinus said:
Not likely, I made the variable myself and the only time I ever mentioned it in the script was the AddValue macro (which I’ve now changed)

Can I see how you used the AddValue?

ProjectAsinus · Mar 13, 2024

Right now it's set up like this:

Code:

AddValue #$03, myScore_000, #$5, #$02
            UpdateHudElement #$04

kevin81 · Mar 14, 2024

I think you'll need to use the base myScore variable instead of myScore_000.
Also, by default, the tens digits, hundreds digits, etc. are named myScore_10, myScore_100, and so on. There is no such thing as myScore_000 by default.

So you could try:

Code:

    AddValue #$03, myScore, #$05, #$02
    UpdateHudElement #$04

...and see if that works better.

For reference, this is how the AddValue macro works:

ProjectAsinus · Mar 14, 2024

kevin81 said:
I think you'll need to use the base myScore variable instead of myScore_000.
Also, by default, the tens digits, hundreds digits, etc. are named myScore_10, myScore_100, and so on. There is no such thing as myScore_000 by default.

So you could try:

Code:

AddValue #$03, myScore, #$05, #$02 UpdateHudElement #$04

...and see if that works better.

For reference, this is how the AddValue macro works:

I misread Smile Hero’s example. I thought I would have to get rid of myScore and replace it with myScore_0, etc. I switched it to myScore_000 (which I guess has to be 100) because I thought it would be simpler. I assumed since they were all separate variables that they would each be incremented individually, and since my points go up by 500 whenever an enemy is destroyed it would be easiest to increase that one specifically. Guess not.

How to make game speed up as score increases? (4.5.9)

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