Camera.java

package com.atm959.openglgame;

import android.opengl.Matrix;

import static java.lang.Math.cos;
import static java.lang.Math.sin;

public class Camera {

    private float posX, posY, posZ;
    private float lookX, lookY, lookZ;

    public Camera(){
        this.posX = 0.0f; this.posY = 0.0f; this.posZ = 0.0f;
        this.lookX = 0.0f; this.lookY = 0.0f; this.lookZ = 2.0f;
    }

    public void setPosX(float x){
        this.posX = x;
    }

    public void setPosY(float y){
        this.posY = y;
    }

    public void setPosZ(float z){
        this.posZ = z;
    }

    public void setPosition(float x, float y, float z){
        this.posX = x;
        this.posY = y;
        this.posZ = z;
    }

    public void setYaw(float angle){
        this.lookX = this.posX + (float)(5 * sin(angle));
        this.lookZ = this.posZ + (float)(5 * cos(angle));
    }

    public void setPitch(float angle){
        this.lookY = this.posY + (float)(5 * sin(angle));
    }

    public float[] calculateCamMatrix(){
        float[] camMatrix = new float[16];
        Matrix.setLookAtM(camMatrix, 0, this.posX, this.posY, this.posZ, this.lookX, this.lookY, this.lookZ, 0f, 1.0f, 0.0f);
        return camMatrix;
    }
}