/* --------------------------------------------------------------------
	
	/////////////// 	UNIVERSAL/GENERAL LIBRARY 	/////////////////
	
	A library meant for universal functions and including other libraries.
	
   --------------------------------------------------------------------
*/

#include "script/KevinSystem/kevin_system/Kevin_ItemLib.txt"
#include "script/KevinSystem/kevin_system/Kevin_ItemConst.txt"
#include "script/default_system/Default_Effect.txt" // Probably change this somewhere down the line.

#include "script/KevinSystem/GeneralSoundLib.txt" // Ryannlib momento
//#include "script/KevinSystem/TerraShot2x/shot_const.dnh"

#include "script/KevinSystem/Universal_EnemyLib.dnh"

#include "script/KevinSystem/KevinShot/shotconst_HD.txt"

// Convenience constants

const STG_WIDTH = GetStgFrameWidth();
const STG_HEIGHT = GetStgFrameHeight();

InstallFont("script/KevinSystem/font/Connecting Chain Handserif.ttf");
InstallFont("script/KevinSystem/font/AnkeCall.ttf");

// Placeholder

let invalid = "script/KevinSystem/img/lol.png";
let testEnemyTex = "script/game/resourceLib/Spritesheet_StationJam.png";

LoadTextureEx(invalid, true, true);
LoadTextureEx(testEnemyTex, true, true);

int PetalEffect = ObjParticleList_Create(OBJ_PARTICLE_LIST_2D);

_EffectListPreRender(PetalEffect, testEnemyTex, [1536, 0, 1792, 256]);
_SoundTask;

// Simple text object creation (adapted from mkm)

function CreateTextObject(
	float mx, my, size,
	string text, font,
	int colorTop, colorBottom,
	int borderColor, borderWidth,
	int renderPriority
	){
	
	let obj = ObjText_Create();
	ObjText_SetText(obj, text);
	ObjText_SetFontSize(obj, size);
	ObjText_SetFontType(obj, font);
	ObjText_SetFontColorTop(obj, colorTop);
	ObjText_SetFontColorBottom(obj, colorBottom);
	ObjText_SetFontBorderType(obj, BORDER_FULL);
	ObjText_SetFontBorderColor(obj, borderColor);
	ObjText_SetFontBorderWidth(obj, borderWidth);
	Obj_SetRenderPriorityI(obj, renderPriority);
	ObjRender_SetX(obj, mx);
	ObjRender_SetY(obj, my);
	return obj;
	
}

// Simple 2D image creation

function <int> _Create2DImage(imgpath, int rectleft, int recttop, int rectright, int rectbottom){
		
	int imgname = ObjPrim_Create(OBJ_SPRITE_2D);
	ObjPrim_SetTexture(imgname, imgpath);
	ObjSprite2D_SetSourceRect(imgname, rectleft, recttop, rectright, rectbottom);
	ObjSprite2D_SetDestCenter(imgname);
	//ObjRender_SetPosition(imgname, positionstart)
	
	return imgname;
}

// Overload that uses arrays instead

function <int> _Create2DImage(imgpath, int[] rectarray){
		
	int imgname = ObjPrim_Create(OBJ_SPRITE_2D);
	ObjPrim_SetTexture(imgname, imgpath);
	ObjSprite2D_SetSourceRect(imgname, rectarray);
	ObjSprite2D_SetDestCenter(imgname);
	//ObjRender_SetPosition(imgname, positionstart)
	
	return imgname;
}

// Task to make bullet fade after a certain time, bullet loses hitbox while fading

task _EnemyShotFade(int target, int time, bool fadedelay, float delaymultiplier){
	ObjShot_SetDeleteFrame(target, time);
	if (fadedelay){
		wait(time-time/delaymultiplier);
		ObjShot_SetIntersectionEnable(target, false);
		ascent(i in 0..time/delaymultiplier){
			ObjRender_SetAlpha(target, Interpolate_Smoother(ObjRender_GetAlpha(target), 0, i/(time/delaymultiplier)));
			yield;
		}
	}
	else{
		ascent(i in 0..time){
			ObjRender_SetAlpha(target, Interpolate_Smoother(ObjRender_GetAlpha(target), 0, i/time));
			yield;
		}
	}
	return;
}

// Delay function by Naudiz

task _Delay(target, del){

	ObjShot_SetDelay(target, del);
	ObjShot_SetDelayGraphic(target, ObjShot_GetImageID(target)); // unless you already have the ID in the function somewhere, in which case you can just use that, or use any other graphic
	ObjShot_SetDelayMode(target, DELAY_LERP, LERP_ACCELERATE, LERP_DECELERATE); // delay mode, scale lerp, alpha lerp (these are the modes I use in my entry)
	ObjShot_SetDelayScaleParameter(target, 1, 2, del); // lerps from 2 to 1 scale in del frames (use the value from ObjShot_SetDelay for del)
	ObjShot_SetDelayAlphaParameter(target, 1, 0, del); // lerps from 0 to 1 (255) alpha in del frames
	
	return;
}

// Overloads by me

task _Delay(target, del, orgscale, destscale, orgalpha, destalpha, scalelerp, alphalerp){

	ObjShot_SetDelay(target, del);
	ObjShot_SetDelayGraphic(target, ObjShot_GetImageID(target)); 
	ObjShot_SetDelayMode(target, DELAY_LERP, scalelerp, alphalerp); 
	ObjShot_SetDelayScaleParameter(target, destscale, orgscale, del); 
	ObjShot_SetDelayAlphaParameter(target, destalpha, orgalpha, del);
	return;
	
}

task _Delay(target, del, orgscale, destscale, orgalpha, destalpha){

	ObjShot_SetDelay(target, del);
	ObjShot_SetDelayGraphic(target, ObjShot_GetImageID(target)); 
	ObjShot_SetDelayMode(target, DELAY_LERP, LERP_ACCELERATE, LERP_DECELERATE); 
	ObjShot_SetDelayScaleParameter(target, destscale, orgscale, del); 
	ObjShot_SetDelayAlphaParameter(target, destalpha, orgalpha, del);
	return;
	
}

task _Delay(target, del, orgscale, orgalpha){

	ObjShot_SetDelay(target, del);
	ObjShot_SetDelayGraphic(target, ObjShot_GetImageID(target)); 
	ObjShot_SetDelayMode(target, DELAY_LERP, LERP_ACCELERATE, LERP_DECELERATE); 
	ObjShot_SetDelayScaleParameter(target, 1, orgscale, del); 
	ObjShot_SetDelayAlphaParameter(target, 1, orgalpha, del);
	return;
	
}

// Rescales the bullet. Very important.

task _BulletRescale(target, float scale, bool hitboxscale, hitboxlevel){

	ObjRender_SetScaleXYZ(target, scale, scale, 1);
	
	if (hitboxscale){
		ObjShot_SetIntersectionScaleXY(target, scale*hitboxlevel, scale*hitboxlevel);
		return;
	}
	
	else{return;}
	
}

// Item drop functions. 

//////////// TO-DO: Move all item creation to the item script, rendering both of these tasks obsolete. ////////////

task _NonspellItemDrop(int targetscene, int targetenemy, int itemamount){

	float ex = ObjMove_GetX(targetenemy);
	float ey = ObjMove_GetY(targetenemy);

	if(ObjEnemyBossScene_GetInfo(targetscene, INFO_PLAYER_SHOOTDOWN_COUNT) == 0){
		loop(itemamount){
			CreateScoreItem(POINT_REGULAR, rand(ex-90, ex+90), rand(ey-90, ey+90));
		}
	}
	else{
		loop(trunc(itemamount/2)){
			CreateScoreItem(POINT_REGULAR, rand(ex-90, ex+90), rand(ey-90, ey+90));
		}	
	}
	
}

task _SpellItemDrop(int targetscene, int targetenemy, int itemamount){

	float ex = ObjMove_GetX(targetenemy);
	float ey = ObjMove_GetY(targetenemy);
	
	if(ObjEnemyBossScene_GetInfo(targetscene, INFO_PLAYER_SHOOTDOWN_COUNT) == 0 && ObjEnemyBossScene_GetInfo(targetscene, INFO_PLAYER_SPELL_COUNT) == 0){
		loop(itemamount){
			CreateScoreItem(POINT_BHESTIE, rand(ex-90, ex+90), rand(ey-90, ey+90));
		}
	}
	else if (ObjEnemyBossScene_GetInfo(targetscene, INFO_PLAYER_SHOOTDOWN_COUNT) == 0 && ObjEnemyBossScene_GetInfo(targetscene, INFO_PLAYER_SPELL_COUNT) >= 0){
		loop(trunc(itemamount/2)){
			CreateScoreItem(POINT_BHESTIE, rand(ex-90, ex+90), rand(ey-90, ey+90));
		}	
	}
	else{}
	
}

// By Neck_Logo

task _CreateCustomTelegraphLine( 
	float posX_, float posY_,
	float initAngle_, float destAngle_,
	float initLength_, float destLength_,
	float initWidth_, float destWidth_,
	int color_, int maxAlpha_,
	float growthTime_, float lifeTime_, float fadeTime_
	) // damn this is some cursed indenting
	{
	int scene = GetEnemyBossSceneObjectID();

	let _shotF_Telegraph_Line = ObjParticleList_Create(OBJ_PARTICLE_LIST_2D);
	ObjPrim_SetTexture(_shotF_Telegraph_Line, invalid);
	
	Obj_SetRenderPriorityI(_shotF_Telegraph_Line, 39);
	ObjPrim_SetPrimitiveType(_shotF_Telegraph_Line, PRIMITIVE_TRIANGLELIST);
	ObjPrim_SetVertexCount(_shotF_Telegraph_Line, 4);
	
	ObjRender_SetBlendType(_shotF_Telegraph_Line, BLEND_ALPHA);
	
	// 
	
	float dU = 0.5, dV = 0.5;
	// Left-top, right-top, left-bottom, right-bottom
	
	ObjPrim_SetVertexUVT(_shotF_Telegraph_Line, 0, 0, 0);
	ObjPrim_SetVertexUVT(_shotF_Telegraph_Line, 1, 1, 0);
	ObjPrim_SetVertexUVT(_shotF_Telegraph_Line, 2, 0, 1);
	ObjPrim_SetVertexUVT(_shotF_Telegraph_Line, 3, 1, 1);
	
	// Vertex positions are offset with deltas so that the sprite is centered
	
	ObjPrim_SetVertexPosition(_shotF_Telegraph_Line, 0, -dU, -dV, 1);
	ObjPrim_SetVertexPosition(_shotF_Telegraph_Line, 1, dU, -dV, 1);
	ObjPrim_SetVertexPosition(_shotF_Telegraph_Line, 2, -dU, dV, 1);
	ObjPrim_SetVertexPosition(_shotF_Telegraph_Line, 3, dU, dV, 1);
	
	ObjPrim_SetVertexIndex(_shotF_Telegraph_Line, [0, 1, 2, 1, 2, 3]);
	
	float angle = initAngle_;
	float span = initLength_;
	float width = initWidth_;
	int alpha = 0;

	//_CreateParticleList();
	_TelegraphLineControl();

	if(scene != ID_INVALID){
	// growth phase
		for (int i = 1; i <= growthTime_ && 0 < ObjEnemyBossScene_GetInfo(scene, INFO_ACTIVE_STEP_TOTAL_LIFE); i++) {
			width = Interpolate_Decelerate(initWidth_, destWidth_, i / growthTime_);
			alpha = Interpolate_Decelerate(0, maxAlpha_+32, i / growthTime_);
			RenderTelegraphLine();
			yield;
		}

		// static phase
		for (int j = 1; j <= lifeTime_ && 0 < ObjEnemyBossScene_GetInfo(scene, INFO_ACTIVE_STEP_TOTAL_LIFE); j++) {
			RenderTelegraphLine();
			yield;
		}

		if (!(0 < ObjEnemyBossScene_GetInfo(scene, INFO_ACTIVE_STEP_TOTAL_LIFE))) fadeTime_ = min(fadeTime_, 25);
	
	}
	
	else{
		for (int i = 1; i <= growthTime_ ; i++) {
			width = Interpolate_Decelerate(initWidth_, destWidth_, i / growthTime_);
			alpha = Interpolate_Decelerate(0, maxAlpha_+32, i / growthTime_);
			RenderTelegraphLine();
			yield;
		}
		
				// static phase
		for (int j = 1; j <= lifeTime_; j++) {
			RenderTelegraphLine();
			yield;
		}
		
	}

	destWidth_ = width;
	maxAlpha_ = alpha;

	// deletion phase
	for (int k = 1; k <= fadeTime_; k++) {
		width = Interpolate_Accelerate(destWidth_, destWidth_ - (destWidth_ - initWidth_) / 2, k / fadeTime_);
		alpha = Interpolate_Accelerate(maxAlpha_+32, 0, k / fadeTime_);
		RenderTelegraphLine();
		yield;
	}
	
	Obj_Delete(_shotF_Telegraph_Line);

	task _TelegraphLineControl() {
		for (int l = 1; l <= growthTime_ + lifeTime_; l++) {
			angle = Interpolate_Decelerate(initAngle_, destAngle_, l / (growthTime_ + lifeTime_));
			span = Interpolate_Decelerate(initLength_, destLength_, l / (growthTime_ + lifeTime_));
			yield;
		}
	}
	
	function <void> RenderTelegraphLine() {
		
		float midX = posX_ + span * cos(angle) + (width / 2) * cos(angle + 90);
		float midY = posY_ + span * sin(angle) + (width / 2) * sin(angle + 90);
		
		ObjParticleList_SetPosition(_shotF_Telegraph_Line, midX, midY, 1);
		ObjParticleList_SetScale(_shotF_Telegraph_Line, span, width, 1);
		ObjParticleList_SetAngleZ(_shotF_Telegraph_Line, angle);
		ObjParticleList_SetColor(_shotF_Telegraph_Line, color_);
		ObjParticleList_SetAlpha(_shotF_Telegraph_Line, alpha);
		ObjParticleList_AddInstance(_shotF_Telegraph_Line);
		
	}
	
	//return _shotF_Telegraph_Line;
}