Table Of Contents

Graph IDEProgramming ► Image

The following is a complete script for programming a Image graphic. When animated, it makes the image move around in a circle. Remember to set the Execute During Animation Program state if you animate a graphic.

/* Declarations */

double cos(double a);
double sin(double a);

@@class() Image:Object

@@method(public, class) (id)alloc;
@@method(public, instance) (id)init;
@@method(public, instance) (unsigned)animationCount;
@@method(public, instance) (void)moveCenterToXValue:(double)xValue yValue:(double)yValue;
@@method(public, instance) (void)sizeToCenteredWidth:(double)width height:(double)height;
@@method(public, instance) (void)release;

@@end

/* Execution block */

{
id myImage;
int ii;
unsigned animationCount;
double xValue, yValue;

myImage = [[Image alloc] init];

animationCount = [myImage animationCount];

red = (animationCount % 10) / 10.0;
green = (animationCount % 20) / 20.0;

xValue = 250.0 + 100.0 * cos(animationCount/20.0);
yValue = 250.0 + 100.0 * sin(animationCount/20.0);

[myImage moveCenterToXValue:xValue yValue:yValue];

[myImage release];

}

The general API is define in the section Graphic.




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