int    stageW   = 1920;
int    stageH   = 981;
color  clrBG    = #999999;
String pathDATA = "../../data/";

// ********************************************************************************************************************

PImage ss;
int    ssW      = 980;
int    ssH      = 980;
int    ssCols   = 5;
int    ssRows   = 5;
int    ssMax    = ssCols * ssRows;
int    ssCellW  = ssW/ssCols;
int    ssCellH  = ssH/ssRows;

int    ssCount  = 0;
int    ssX, ssY; // store/update x,y positions

int    speedMin = 0;
int    speedMax = 2;

// ********************************************************************************************************************

void settings() {
	size(stageW, stageH, P3D);
	// noSmooth(); // does nothing says joshua davis
}

void setup(){
	// aliasing to anti-aliasing / pixel perfect to blurry
	// 2 (nearest), 3 (linear), 4 (bilinear), and 5 (trilinear):
	hint(DISABLE_TEXTURE_MIPMAPS);
	((PGraphicsOpenGL)g).textureSampling(2);

	ss = loadImage(pathDATA + "spritesheet.png");
}
 
void draw(){
	background(clrBG);

	// lets visualize the sprite sheet
	image(ss, 0, 0, ssW, ssH);

	// lets visualize the texture selection moving trough the spritesheet
	if (++speedMin%speedMax==0) {
		ssX = (ssCount%ssCols) * ssCellW;
		ssY = (ssCount/ssRows) * ssCellH;
		ssCount = ++ssCount%ssMax;
	}

	strokeWeight(1);
	stroke(#FF3300);
	noFill();
	rect(ssX, ssY, ssCellW, ssCellH);

	// create an object that performs the sprite sheet animation

	strokeWeight(0);
	noStroke();
	noFill();
	noTint();

	pushMatrix();
		translate(stageW/2, stageH/2, 0);

		pushMatrix();
			translate( (stageW-ssW)/2, 0);
			scale(ssCellW); // 196 (980/5)

			beginShape(QUADS);
				texture(ss);
				vertex( -(0.5), -(0.5), 0,   ssX,                 ssY);
				vertex(  (0.5), -(0.5), 0,   ssX+ssCellW,         ssY);
				vertex(  (0.5),  (0.5), 0,   ssX+ssCellW, ssY+ssCellH);
				vertex( -(0.5),  (0.5), 0,   ssX,         ssY+ssCellH);
			endShape(CLOSE);
		popMatrix();

	popMatrix();




	// pushMatrix();
	// 	translate(982, 0);
	// 	// src, srcX, srcY, srcW, srcH, destX, destY, destW, destH
	// 	copy(ss,   ssX,ssY,ssCellW,ssCellH,   0,0,ssCellW,ssCellH);
	// popMatrix();

	surface.setTitle( int(frameRate) + " FPS" );
}

// ********************************************************************************************************************