#include "worldmap.h"

dWorldCamera_c *dWorldCamera_c::instance = 0;

dWorldCamera_c *dWorldCamera_c::build() {
	OSReport("Creating WorldCamera\n");

	void *buffer = AllocFromGameHeap1(sizeof(dWorldCamera_c));
	dWorldCamera_c *c = new(buffer) dWorldCamera_c;

	OSReport("Created WorldCamera @ %p\n", c);

	instance = c;
	return c;
}




int dWorldCamera_c::onCreate() {
	this->camPos = (Point3d){0.0f, 500.0f, 1000.0f};
	this->camRotate = (Point3d){-40.0f, -30.0f, 0.0f}; // ZXY order

	camDist = 740;
	camY = 330;
	targetDist = 100;
	targetY = -220;

	return true;
}


int dWorldCamera_c::onDelete() {
	return true;
}


int dWorldCamera_c::onExecute() {
	int heldButtons = Remocon_GetButtons(GetActiveRemocon());

	/*if (heldButtons & WPAD_LEFT)
		this->camPos.x -= 5.0f;
	if (heldButtons & WPAD_RIGHT)
		this->camPos.x += 5.0f;

	if (heldButtons & WPAD_UP)
		this->camPos.z -= 5.0f;
	if (heldButtons & WPAD_DOWN)
		this->camPos.z += 5.0f;

	if (heldButtons & WPAD_MINUS)
		this->camRotate.y -= 2.0f;
	if (heldButtons & WPAD_PLUS)
		this->camRotate.y += 2.0f;*/

	/*bool change = false;

	if (heldButtons & WPAD_LEFT) { camDist -= 5.0f; change = true; }
	if (heldButtons & WPAD_RIGHT) { camDist += 5.0f; change = true; }
	if (heldButtons & WPAD_UP) { camY -= 5.0f; change = true; }
	if (heldButtons & WPAD_DOWN) { camY += 5.0f; change = true; }
	if (heldButtons & WPAD_MINUS) { targetDist -= 5.0f; change = true; }
	if (heldButtons & WPAD_PLUS) { targetDist += 5.0f; change = true; }
	if (heldButtons & WPAD_ONE) { targetY -= 5.0f; change = true; }
	if (heldButtons & WPAD_TWO) { targetY += 5.0f; change = true; }

	if (change)
		OSReport("[Cam Dist=%f Y=%f] [Target Dist=%f Y=%f]\n", camDist, camY, targetDist, targetY);*/

	return true;
}


int dWorldCamera_c::onDraw() {
	// fixup camera shit
	GXRenderModeObj *rmode = nw4r::g3d::G3DState::GetRenderModeObj();

	// 2D camera
	nw4r::g3d::Camera cam2d(GetCameraByID(1));

	if (rmode->field_rendering != 0)
		cam2d.SetViewportJitter(VIGetNextField());

	cam2d.SetOrtho(rmode->efbHeight, 0.0f, 0.0f, rmode->fbWidth * (IsWideScreen() ? 1.3333334f : 1.0f), -100000.0f, 100000.0f);

	// 3D camera
	nw4r::g3d::Camera cam3d(GetCameraByID(0));

	if (rmode->field_rendering != 0)
		cam3d.SetViewportJitter(VIGetNextField());

	cam3d.SetPerspective(45, (f32)rmode->viWidth / (f32)rmode->viHeight, 0.1f, 2400.0f);
	//cam3d.SetOrtho(rmode->efbHeight, 0.0f, 0.0f, rmode->fbWidth * (IsWideScreen() ? 1.3333334f : 1.0f), -100000.0f, 100000.0f);

	/*nw4r::g3d::Camera::PostureInfo posture;
	posture.tp = nw4r::g3d::Camera::POSTURE_ROTATE;
	posture.cameraRotate = this->camRotate;

	cam3d.SetPosition(this->camPos);
	cam3d.SetPosture(posture);*/



	// The map is actually roughly 500x500, but I use a bigger circle in order
	// to give leeway for the camera

	// TODO: Make these vars tweakable!
	float angle = MTXDegToRad(90.0) - atan2(daWMPlayer_c::instance->pos.z, daWMPlayer_c::instance->pos.x);
	float camX = sin(angle) * camDist;
	float camZ = cos(angle) * camDist;
	float targetX = sin(angle) * targetDist;
	float targetZ = cos(angle) * targetDist;

	nw4r::g3d::Camera::PostureInfo posture;
	posture.tp = nw4r::g3d::Camera::POSTURE_LOOKAT;
	posture.cameraUp = (Point3d){0,1,0};
	posture.cameraTarget = (Point3d){targetX,targetY,targetZ};

	cam3d.SetPosition((Point3d){camX,camY,camZ});
	cam3d.SetPosture(posture);

	return true;
}