38 lines
1.2 KiB
Java
38 lines
1.2 KiB
Java
package draw;
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public abstract class World {
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protected Canvas theCanvas;
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protected void putCanvas(Canvas c) {
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this.theCanvas = c;
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};
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public boolean bigBang(int width, int height, double s) {
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if (width <= 0)
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throw new RuntimeException(
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"The method bigBang(int,int,double) expects " +
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"the first argument to be greather than 0, given "
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+ width);
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if (height <= 0)
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throw new RuntimeException(
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"The method bigBang(int,int,double) expects " +
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"the second argument to be greather than 0, given "
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+ height);
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if (s <= 0)
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throw new RuntimeException(
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"The method bigBang(int,int,double) expects " +
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"the third argument to be greather than 0, given "
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+ s);
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theCanvas = new Canvas(width,height);
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return bigBangO(s);
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};
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private native boolean bigBangO(double s);
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// --------------------------------------------------------
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public native boolean endOfTime();
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public native World endOfWorld();
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public abstract World onTick();
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public abstract World onKeyEvent(String ke);
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public abstract boolean draw();
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public abstract boolean erase();
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}
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