#include "component_camera_focus.h"

void
component_camera_focus_tick(ComponentCameraFocus* self, ECS* ecs)
{
	ComponentPhysics* physics;
	vec3 position;
	//f32 velocityPercent;
	//vec2 positionPercent;

	physics = ecs_component_get(ecs, COMPONENT_PHYSICS, self->entityID);

	if (!physics)
		return;

	glm_vec3_copy(physics->position, position);
	
	/*
	positionPercent[0] = (physics->position[0] + (physics->velocity[0] * COMPONENT_CAMERA_FOCUS_VELOCITY_MULTIPLIER)) / self->camera->orthographic.size[0];
	positionPercent[1] = (physics->position[1] + (physics->velocity[1] * COMPONENT_CAMERA_FOCUS_VELOCITY_MULTIPLIER)) / self->camera->orthographic.size[1];
	*/

	/*
	position[0] += physics->velocity[0] * COMPONENT_CAMERA_FOCUS_VELOCITY_MULTIPLIER;
	position[1] += physics->velocity[1] * COMPONENT_CAMERA_FOCUS_VELOCITY_MULTIPLIER;
	*/

	position[0] -= self->camera->orthographic.size[0] / 2;
	position[1] -= self->camera->orthographic.size[1] / 2;

	/*
	position[0] += (physics->position[0]) - ((self->camera->orthographic.size[0] / 4) * (1 - self->camera->zoom));
	position[1] += (physics->position[1]) - ((self->camera->orthographic.size[1] / 4) * (1 - self->camera->zoom));
	*/

	position[2] = 0.0f;

	//velocityPercent = 0.0f;

	/*
	if (fabs(physics->velocity[0]) >= fabs(physics->velocity[1]))
		velocityPercent = fabs(physics->velocity[0]) / physics->velocityMax[0];
	else if (fabs(physics->velocity[1]) > fabs(physics->velocity[0]))
		velocityPercent = fabs(physics->velocity[1]) / physics->velocityMax[1];

	self->camera->zoom = COMPONENT_CAMERA_FOCUS_ZOOM_MIN;
	self->camera->zoom += (velocityPercent * (COMPONENT_CAMERA_FOCUS_ZOOM_MAX - COMPONENT_CAMERA_FOCUS_ZOOM_MIN));
	*/

	//glm_vec3_print(position, stderr);

	camera_position_set(self->camera, position);
}

void
component_camera_focus_init
(
 	ComponentCameraFocus* self,
	ECS* ecs,
	Camera* camera,
	u32 entityID
)
{
	self->camera = camera;
	self->entityID = entityID;
}