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I am trying to make a 3D FPS in java, but I am having a hard time with the collision. I tried multiple methods but none of them worked. The code is based on ThinMatrix's 3D engine.

I want something like this:

public boolean collision(Entity e1, Entity e2) {
        if(collision) {
            return true;
        }
        return false;
}

        for (Entity entity : entities) {

            if (camera.collision(camera, entity) == true) {
            System.out.println("Collision is hapening");
            }
            renderer.processEntity(entity);
        }
        renderer.render(light, camera);
        DisplayManager.updateDisplay();
    }
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  • 1
    \$\begingroup\$ As you can tell, we have lots of existing Q&A on collision-detection and collision-resolution, covering a variety of different methods appropriate to different shapes & situations. Which specific ones did you try, how did you try implementing them, and what specifically went wrong when you tried? Being specific about your issue helps us avoid re-treading the same ground, which helps you get better, more in-depth answers tailored to what you need, faster. \$\endgroup\$ – DMGregory Jan 1 at 14:05

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