Add sprint/running to player

[BrianCheung1]

Want to add

Recently we've added a new energy bar to the player

I would like to add a sprint key/running animation to the player model that allows the player to move a little faster depending on how much energy the player has left

I was thinking somewhere along the lines for 25% faster if player has 50% or higher energy and 10% if the player has less than 50% energy

Files to change

I believe the only file i would need to change would be player,controls.js and specially onButtonDown for up/down/left/right and onMouseDown

I believe adding some condition like this

k.onButtonDown(['up', 'down', 'left', 'right'], (dir) => {
        if (player.isInDialog) return;
        // If three buttons are pressed, the player should not move
        if (pressed.size > 2) return;
        if (pressed.size === 0) return;
        // Also, if opposite buttons are pressed, the player should not move
        if (pressed.has('left') && pressed.has('right')) return;
        if (pressed.has('up') && pressed.has('down')) return;

        // Move the player
        const dirX = pressed.has('left') ? -1 : pressed.has('right') ? 1 : 0;
        const dirY = pressed.has('up') ? -1 : pressed.has('down') ? 1 : 0;
        const moveDir = k.vec2(dirX, dirY);
        // const speed =
        //     pressed.size === 1
        //         ? player.speed
        //         : // Dot product for diagonal movement 45%
        //           player.speed * 0.707106781188095; // 1 / sqrt(2)
        const speed =
            pressed.size === 1
                ? player.state.energy  > 50
                    ? player.speed * 1.25
                    : player.speed
                : player.state.energy > 1.25
                  ? player.speed * 0.707106781188095 * 5
                  : player.speed * 0.707106781188095;
    });

would be a step in the right direction

[hpatel292-seneca]

@BrianCheung1 Can I work on this?

[BrianCheung1]

@r4pt0s

[r4pt0s]

Absolutely @BrianCheung1.
Go for it 🎉🚀

Make sure that the character isn't moving to fast because I saw a bug where the player was then able to "jump" over the map boundaries somehow.

[BrianCheung1]

You can assign this to @hpatel292-seneca as I might not be able to get to it for a little.

[r4pt0s]

Done @BrianCheung1.
Welcome @hpatel292-seneca.
Go for it 🎉🚀

[hpatel292-seneca]

Hi @BrianCheung1, I have a question. In the description you mentioned "add a sprint key/running animation,"  is it like a permanent increase in speed or like a sprint (for a few seconds)??

[BrianCheung1]

@hpatel292-seneca
Personally I was thinking as long as the key is held, the player would be sprinting depending on their energy.

However it is totally up to you how you would like to implement it.

It could be a permanent speed buff, a quick dash, some other kind of movement.

[hpatel292-seneca]

And you said 25% increase in speed if energy is greater than 50% and 10% increase in speed if energy is less than 50%, here is what I came up with

const speed =
            pressed.size === 1
                ? player.state.energy > 50
                    ? player.speed * 1.25
                    : player.speed * 1.1
                : player.state.energy > 50
                  ? player.speed * 0.707106781188095 * 1.25
                  : player.speed * 0.707106781188095 * 1.1;

[BrianCheung1]

Yes that was the solution I initially came up with. I believe it currently only affects speeds when energy greater than 50% so you’ll have to add in the logic for energy under 50%

[hpatel292-seneca]

Yea, it's checking if energy is greater than 50 and if it is then it multiplies speed by 1.25 else it multiple speed by 1.1 (10%).

Thats what you asked right is energy 50-100, 25% increase and if energy 0-50, 10% increase.

[BrianCheung1]

Oh yes sorry I missed that, looks good to me.