seventh.client.gfx.effects.particle_system.CircleParticleRenderer.java Source code

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Here is the source code for seventh.client.gfx.effects.particle_system.CircleParticleRenderer.java

Source

/*
 * see license.txt 
 */
package seventh.client.gfx.effects.particle_system;

import com.badlogic.gdx.graphics.Color;

import seventh.client.gfx.Camera;
import seventh.client.gfx.Canvas;
import seventh.client.gfx.effects.particle_system.Emitter.ParticleRenderer;
import seventh.math.Vector2f;
import seventh.shared.TimeStep;

/**
 * @author Tony
 *
 */
public class CircleParticleRenderer implements ParticleRenderer {

    private float radius;

    /**
     * defaults to a radius of 1
     */
    public CircleParticleRenderer() {
        this(1f);
    }

    /**
     * @param radius
     */
    public CircleParticleRenderer(float radius) {
        this.radius = radius;
    }

    /* (non-Javadoc)
     * @see seventh.client.gfx.particle_system.Emitter.ParticleRenderer#update(seventh.shared.TimeStep, seventh.client.gfx.particle_system.ParticleData)
     */
    @Override
    public void update(TimeStep timeStep, ParticleData particles) {
    }

    /* (non-Javadoc)
     * @see seventh.client.gfx.particle_system.Emitter.ParticleRenderer#render(seventh.client.gfx.Canvas, seventh.client.gfx.Camera, float, seventh.client.gfx.particle_system.ParticleData)
     */
    @Override
    public void render(Canvas canvas, Camera camera, float alpha, ParticleData particles) {

        Vector2f cameraPos = camera.getRenderPosition(alpha);
        for (int i = 0; i < particles.numberOfAliveParticles; i++) {

            Vector2f pos = particles.pos[i];
            float x = pos.x - cameraPos.x, y = pos.y - cameraPos.y;
            Color color = particles.color[i];

            canvas.fillCircle(this.radius, x, y, Color.argb8888(color));
        }
    }

}