Method add_to_frame

particles.py:37–63

(self, frame:list, lights:list, cam)

            particle[2] = (particle[2] - self.position[2]) % self.size + self.position[2]
    
    def add_to_frame(self, frame:list, lights:list, cam) -> list:

        for particle in self.particles:
            x = particle[0] - cam.x
            y = particle[1] - cam.y
            z = particle[2] - cam.z
            x, y, z = (
                x * cam.rotation[0][0] + y * cam.rotation[0][1] + z * cam.rotation[0][2],
                x * cam.rotation[1][0] + y * cam.rotation[1][1] + z * cam.rotation[1][2],
                x * cam.rotation[2][0] + y * cam.rotation[2][1] + z * cam.rotation[2][2],
            )
            if z <= cam.z_near:
                continue

            x2d = cam.width // 2 + int(x * cam.rendering_plane_z / z)
            y2d = cam.height // 2 - int(y * cam.rendering_plane_z / z)
            if not (0 <= x2d < cam.width and 0 <= y2d < cam.height):
                continue
            
            
            for light in lights:
                distance_2 = (x - light.x_in_cam) * (x - light.x_in_cam) + (y - light.y_in_cam) * (y - light.y_in_cam) + (z - light.z_in_cam) * (z - light.z_in_cam)
                if distance_2 < 400:
                    frame[y2d][x2d] = (min(255, int(frame[y2d][x2d][0] + 50 / distance_2)), 
                                       min(255, int(frame[y2d][x2d][1] + 50 / distance_2)), 
                                       min(255, int(frame[y2d][x2d][2] + 50 / distance_2)))
        return frame