Resolve "Create a simple terrain"

frontend/core/src/com/game/tankwars/model/TerrainGenerator.java

+package com.game.tankwars.model;
+
+import com.badlogic.gdx.math.BSpline;
+import com.badlogic.gdx.math.MathUtils;
+import com.badlogic.gdx.math.Vector2;
+
+public class TerrainGenerator {
+    float xStart;
+    float xEnd;
+    float yMax;
+    float yMin;
+    int points;
+    Vector2[] controlPoints;
+
+    public TerrainGenerator(float xStart, float xEnd, float yMin, float yMax, int points){
+        this.xStart = xStart;
+        this.xEnd = xEnd;
+        this.yMax = yMax;
+        this.yMin = yMin;
+        this.points = points;
+
+        controlPoints = new Vector2[points];
+        controlPoints[points - 1] = new Vector2(xEnd + 2, MathUtils.random(yMin, yMax));
+
+        controlPoints[0] = new Vector2(xStart, MathUtils.random(yMin, yMax));
+        controlPoints[points - 1] = new Vector2(xEnd + 2, MathUtils.random(yMin, yMax));
+
+        for (int i = 1; i < points - 1; i++){
+            controlPoints[i] = new Vector2( xEnd*((float)i/((float) points - 2)), MathUtils.random(yMin, yMax));
+        }
+    }
+
+    public Vector2[] generateVertices(int vertNumber) {
+
+        Vector2[] vertices = new Vector2[vertNumber];
+        Vector2 outStart = new Vector2();
+        Vector2 outEnd = new Vector2();
+        Vector2 tmp = new Vector2();
+
+        BSpline.cubic(outStart, 0, controlPoints, false, tmp);
+        vertices[0] = outStart;
+
+        BSpline.cubic(outEnd, 1, controlPoints, false, tmp);
+        vertices[vertNumber-1] = outEnd;
+
+        for (int i = 1; i < vertNumber - 1; i++){
+            Vector2 out = new Vector2();
+            float t = (float)i/((float) vertNumber - 1);
+            BSpline.cubic(out, t, controlPoints, false, tmp);
+            vertices[i] = out;
+        }
+
+        return vertices;
+    }
+
+}
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