Messages

1

System / creating a spin-down timer

« on: March 20, 2013, 07:02:33 pm »

Any advice on how to create a spin-down timer?

Ive got an animation running at speed x and i want it to slowly spin down to 0 then stop

im pretty sure it is going to involve three elements like

sf::Clock sysClock;

sf::Time tInitial;
sf::Time tDelta;
sf::Time tTotal;

tInitial = sysClock.restart();
tDelta = sf::Seconds(0.02f);
tTotal = (some math operation combining tInitial and tDelta so i can ramp the animation down)
 

Im using Foalys animation class, so that may have a small/big influence on how to handle this problem.

2

Graphics / more beginner graphics questions

« on: March 19, 2013, 08:30:40 pm »

Im using Foalys Animation Class to tinker around. So far I have an 800x600 playfield with a 400x300 view window. On the playfield I have animated combat dummy. my character has the animations for walking/shooting bow/spear thrust and fidget. I can turn the animated dummy on/off with a key press to reset it for now. And I have a collision event set up that if my character runs into the dummy it animates (to test for future arrow strikes).

Question 1: should I be loading all of the animations into one animation object and then calling up the animations for walk/bow/spear/fidget etc... by which frame to start at or leave it as seperate animation objects for each?

Question 2: my fidget animation is basically a 4 second timer that turns the fidget bool on/off, resets the animation to frame0, runs the animation or stops the animation. what would be the best way to have the fidget animation turn on every x seconds, run for the # of frames in the animation, then turn off and wait til the next timer event?

re-did the video, hopefully it plays better
Video showing what I have working so far..

3

Feature requests / Multiple layer support for sprite sheets

« on: March 17, 2013, 03:19:20 pm »

Instead of using the tools in

sf::RenderTexture

to build up a composited image for animations it would be cool if the library had XCF support so that layers could be turned on/off with switches. The LPC sprite sheets got me thinking about this.

4

Graphics / Re: basic animation help

« on: March 16, 2013, 09:03:25 pm »

works great! now to try and work it around so that i can use it on the fly for movement for multiple entities in the game in multiple directions by using a variable for which way the characters are travelling.

thanks again

5

Graphics / Re: basic animation help

« on: March 16, 2013, 06:33:09 pm »

awesome, thanks, i'll get to work on it right now.
thanks a ton.

cheers!

6

Graphics / basic animation help

« on: March 16, 2013, 05:56:26 pm »

Hi, I've been having trouble with the forums search function so I'm going to ask in here.

I have a sprite sheet, 4 rows of 8 columns showing walking left/right/forward/rear

Can someone give me a quick example of how to 'animate' from the sprite sheet?

this is my very first totally newbie-ish time using sprites so please be kind

7

General / Re: How can I create a drag and drop function?

« on: March 15, 2013, 04:49:03 pm »

I was just trying something similar but with hover/moving effects.

I did it with 3 images, normal, hover_effect, moving effect. The effects were basically the normal image with green or red glows in the background.

I had to put some logic in my rendering section though to display the proper image based on a the Bools for hover, moving and buttonDown.

I'm sure there is a more elgeant way to do this inside the SFML library, any suggestions?

// Rendering
                gamewindow.clear();
                gamewindow.draw(background);
               
                if(hover == true && buttonDown == false)
                {
                        gamewindow.draw(highlightChar);
                        hover = false;
                }
                else if(moving == true && buttonDown == true)
                {
                        gamewindow.draw(movingChar);
                        hover = false;
                }
                else
                {
                        gamewindow.draw(normalChar);
                }
                gamewindow.draw(cursor);
                gamewindow.display();
 

8

General / Re: Pong Game Help

« on: March 15, 2013, 12:44:51 pm »

I just multiplied the balls x-axis movement by -1 in my pong game.

Code: [Select]

//Collision
if(ball.getGlobalBounds().intersects(paddle1.getGlobalBounds()))
{
xVelBall *= -1;
hitSound.play();
}
if(ball.getGlobalBounds().intersects(paddle2.getGlobalBounds()))
{
xVelBall *= -1;
hitSound.play();
}