Messages

1

Window / Re: Recommended way to change mouse cursor

« on: March 31, 2020, 06:42:49 pm »

Thank you I will try much appreciated.

2

Window / Recommended way to change mouse cursor

« on: March 31, 2020, 04:18:00 pm »

Hello,

This is just a quick question about changing the mouse cursor image for different events, "Move, Click, etc".
What is the recommended way to do this ?
1) Create new sf::Cursors for each event ?
2) Use a sprite ?
3) Is there a way I am missing ?

Regards.

3

General / Re: How to handle collision for multiple objects efficiently ?

« on: September 02, 2017, 11:50:56 am »

Hey Tigre,

Your solution is perfectly valid and a good one, and I believe I may have read the topic incorrectly.
I would take a similar approach also.

Game Class {

// Vars
Ball object
Paddle object
Array of block objects

//Functions
ball.update()
paddle.update(Ball &m_ball)
handleCollisions() {
    for(const auto &itr : blocks) {
        // Check block and ball for collisions and update on collision
    }
}

If you don't like having the collision check here you could
for(const auto &itr : blocks) {
        itr.checkCollision(Ball &m_ball);
}

4

General / Re: How to handle collision for multiple objects efficiently ?

« on: September 01, 2017, 06:23:17 pm »

There is nothing wrong with iterating over a vector to check for collisions with a simple game like arkanoid.

Don't waste your time trying to build the perfect and most efficient code. Get the collisions up and running and see if its a problem first.

If you find its an issue then maybe look into splitting your level up into multiple parts or use a tile based approach.

Feel free to message if you have any issues.

5

General / Re: Hard Coding Value of Sprite's Position

« on: July 08, 2017, 02:01:22 pm »

If the sprites position and size are based on percentages of the screen size, they will be scaled/stretched accordingly on different devices.

Just be careful if the devices have different aspect ratios. 4:3 / 16:9 etc
This can cause a circle to turn into an oval.

6

General / Real time events vs Polling Events using a joypad

« on: July 08, 2017, 01:56:06 pm »

Whats the proper use of these events regarding joypad input for example ?

7

General / Re: Need Help With IDLE ANIMATION (Character Standing Still)

« on: June 04, 2017, 03:24:24 pm »

You can do something like this to get you started.
But I recommend maybe you look into state machines if your game is going to get complex.

Code: [Select]

                // Couple of ways to do it.

                // #1 Player position is the same as his previous position
                if(playerPos == prevPlayerPos){
                           // change animation to idle
                }
                // #2 Player velocity = 0, player is not moving
                if(playerVel.x == 0 && playerVel.y == 0){
                           // change animation to idle
                }
 
                #3
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left)) {
// change animation to left
}
else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right)) {
// change animation to right
}
                else{
                        // change animation to idle
                }
}

Hope this helps you get started.

8

General / Re: CPU usage 100% help

« on: June 04, 2017, 03:07:48 pm »

The frames are still locked to 60 its just using 100% cpu time.

9

General / CPU usage 100% help

« on: June 03, 2017, 05:24:02 pm »

Quick question
Why is my cpu usage at 100% when I enable vsync ?
If I used window.setFramerateLimit(60) this is not the case and the cpu usage is relatively low

My graphics card is a nvidia gtx970.
Thanks

Code: [Select]

int main()
{
sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
window.setVerticalSyncEnabled(true);

while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event)){
if (event.type == sf::Event::Closed)
window.close();
}
window.clear();
window.display();
}
return 0;
}


10

General / Query about handling input across many classes

« on: January 26, 2017, 01:57:33 am »

Just wondering what is the correct way to handle input across many classes. Example title scene, game scene.
Should each scene have sf::event or is there a preferred way for going about this.

Thanks

11

General / Re: Setting up shader problems

« on: October 30, 2016, 12:43:18 am »

Problem solved, just created a sf::shader * m_shockwave;
m_shockwave = &m_shaders.get(Shaders::Shockwave);

Still learning.

12

General / Setting up shader problems

« on: October 29, 2016, 11:45:20 pm »

Just looking over the asset SFML manager on Git and wondering the following.

// Loads Shader into a map
m_shaders.load(Shaders::Shockwave, "../resources/shader/shockwave.vert", "../resources/shader/shockwave.frag");

// x = shader in the map
sf::Shader &x = m_shaders.get(Shaders::Shockwave);

If I had a shader created in my .h file how do I go about adding the shader stored in my map to the shader I created ?

Or is it better to ignore an assest manager for shaders and just loadFromFile ?

13

General / Screen wrap with views

« on: October 29, 2016, 12:42:13 pm »

I am looking for advice to approach this problem.

The game will be 4 screens across.
The view will be 1 screen in size.
My player will always be in the centre of the screen.
When the player centre x point > 4th screen centre you should see the 1st screen again.

Thanks in advance

14

General / Re: Query about data structure for stateManager

« on: October 15, 2016, 02:28:32 am »

Yes of course there will be a class lol.

What I mean is, whats the best solution for changing scenes, deleting, checking if scene exists before creating a new one etc. Apologies  if my questions wasn't clear.

15

General / Query about data structure for stateManager

« on: October 14, 2016, 11:42:20 pm »

Just inquiring what would be considered a good data structure to use for a manager of states ?