having a picture when mouse is pressed

Programming Questions

bogdy92

having a picture when mouse is pressed

in Programming Questions • 2 years ago

Okay so I want a picture to appear and move when I click with the mouse in a spot here is what I have done so far but the code doesn't work:

TAB 1

PImage bg;
void setup()
{
size(768,480);
bg = loadImage("sky.png");
background(bg);
}

void draw()
{
if(mousePressed){
rocket1(381,357, 23, 23, 1);
}
}

TAB 2

PImage rocket;
void rocket1 (int xStart, int yStart, int xFinish, int yFinish, int Speed){
rocket = loadImage("rocket.png");
imageMode(CENTER);
image(rocket, xStart, yStart);
if(yFinish < 357){
if(xFinish < 381){
    if(xStart > xFinish){
      xStart=xStart - Speed;
    }
    if(yStart > yFinish){
      yStart=yStart - Speed;
    }
}
if(xFinish > 381){
    if(xStart < xFinish){
      xStart=xStart + Speed;
    }
    if(yStart > yFinish){
      yStart=yStart - Speed;
    }
}
}
if(yFinish > 357 & yFinish < 445){
if(xFinish < 381){
    if(xStart > xFinish){
      xStart=xStart - Speed;
    }
    if(yStart > yFinish){
      yStart=yStart + Speed;
    }
}
if(xFinish > 381){
    if(xStart < xFinish){
      xStart=xStart + Speed;
    }
    if(yStart > yFinish){
      yStart=yStart - Speed;
    }
}
}
}

Replies(2)

PhiLho

Re: having a picture when mouse is pressed

2 years ago

Move the loadImage() to setup().
And what doesn't work exactly? The image should appear.
But I think it won't move: you always give the same xStart and yStart, make them global and remove them from the list of parameters.

bogdy92

Re: having a picture when mouse is pressed

2 years ago

okay I got something else but this time the picture automatically appears when the program runs and it goes to the top left corner, but every time I click somewhere it heads there. There are two issues with this new code though. 1.once the picture gets there it appears farther away from the point and it heads back to it and then it dissapears again but this time farther, and it keeps on doing that, while getting farther and farther away. 2. I want to make it that the picture appears once you click somewhere and head there and stop. I also want to be able to click in different spots and have the same picture but multiple copies of it heading to those different spots.

THE NEW CODE:

TAB 1:

PImage bg;
PImage rk;
float y=360;
float x=381;
float a;
float b;
float speedX=2;
float speedY=2;
float dst;

void setup()
{
size(768,480);
bg = loadImage("sky.png");
background(bg);
}
void draw()
{
if(mousePressed){
a = mouseX;
b = mouseY;
}
dst=calc_distance(a,b,x,y);
move();
rocket();
}

TAB 2

float calc_distance (float x1, float y1, float x2, float y2){
return(sqrt(sq(x1-x2)+sq(y1-y2)));
}

TAB 3

void move(){
if(x<a){
    x=x+(speedX)*((abs(x-a))/(dst));
}
if(x>a){
    x=x-(speedX)*((abs(x-a))/(dst));
}
if(y>b){
    y=y-(speedY)*((abs(y-b))/(dst));
}
if(y<b){
    y=y+(speedY)*((abs(y-b))/(dst));
}
}

TAB 4

void rocket(){
background(bg);
rk=loadImage("rocket.png");
image(rk,x,y);
}

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