50 lines
1.1 KiB
Java
50 lines
1.1 KiB
Java
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public class PhysicsObject {
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public float x;
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public float y;
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public float v_x;
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public float v_y;
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public static int width = 0;
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public static int height = 0;
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public static float max_speed = 0;
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public void simulate() {
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v_x = clamp(v_x, -max_speed, max_speed) * 0.998f;
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v_y = clamp(v_y, -max_speed, max_speed) * 0.998f;
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x += v_x;
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y += v_y;
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while (x < 0) {
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x += width;
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}
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while (y < 0) {
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y += height;
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}
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x %= width;
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y %= height;
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}
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private float clamp(float f, float min, float max) {
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return Math.min(max, Math.max(f, min));
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}
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public void apply_force(float x, float y, float factor) {
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if (x == 0 && y == 0)
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return;
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double len = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
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v_x += (x / len) * factor;
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v_y += (y / len) * factor;
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}
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public PhysicsObject(int x, int y, float v_x, float v_y) {
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this.x = x;
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this.y = y;
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this.v_x = v_x;
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this.v_y = v_y;
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}
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public double get_sqr_distance(PhysicsObject obj) {
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return Math.pow(obj.x - x, 2) + Math.pow(obj.y - y, 2);
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}
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}
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