Include transparency on minimap display based on distance.

Faceball2030/main.cpp

@@ -439,30 +439,31 @@ void FaceBall::RegenerateMinimap(){
 	vf2d mapSprSize = {float(mapSpr->width),float(mapSpr->height)};
 	SetDrawTarget(mapSpr);
 	Clear(BLACK);
+	const int MAP_VISIBILITY=6;
 	for (int x=0;x<MAP_SIZE.x;x++){
 		for (int y=0;y<MAP_SIZE.y;y++){
 			float dist = std::sqrtf(std::pow(player.GetPos().x-x,2)+std::pow(player.GetPos().z-y,2));
-			if (dist<6){
+			if (dist<MAP_VISIBILITY){
 				try{
 					MapSquare&square=map.at(y).at(x);
 					vf2d squareLoc = vf2d{x*minimapGridSize.x,y*minimapGridSize.y};
 					if (square.wallN){
-						DrawLine(squareLoc,squareLoc+vf2d{1.f,0.f}*minimapGridSize,WHITE);
+						DrawLine(squareLoc,squareLoc+vf2d{1.f,0.f}*minimapGridSize,{255,255,255,uint8_t((1-(float(dist)/MAP_VISIBILITY))*255)});
 					}
 					if (square.wallS){
-						DrawLine(squareLoc+vf2d{0,1.f}*minimapGridSize,squareLoc+vf2d{1,1}*minimapGridSize,WHITE);
+						DrawLine(squareLoc+vf2d{0,1.f}*minimapGridSize,squareLoc+vf2d{1,1}*minimapGridSize,{255,255,255,uint8_t((1-(float(dist)/MAP_VISIBILITY))*255)});
 					}
 					if (square.wallE){
-						DrawLine(squareLoc+vf2d{1,0}*minimapGridSize,squareLoc+vf2d{1,1}*minimapGridSize,WHITE);
+						DrawLine(squareLoc+vf2d{1,0}*minimapGridSize,squareLoc+vf2d{1,1}*minimapGridSize,{255,255,255,uint8_t((1-(float(dist)/MAP_VISIBILITY))*255)});
 					}
 					if (square.wallW){
-						DrawLine(squareLoc,squareLoc+vf2d{0,1}*minimapGridSize,WHITE);
+						DrawLine(squareLoc,squareLoc+vf2d{0,1}*minimapGridSize,{255,255,255,uint8_t((1-(float(dist)/MAP_VISIBILITY))*255)});
 					}
 					if (hasMapUpgrade){
 						for (Enemy&e:enemies){
 							if (!e.isDead()){
 								if (vi2d{int(e.pos.x),int(e.pos.z)}==vi2d{x,y}){
-									FillCircle(vi2d{int(squareLoc.x+0.5*minimapGridSize.x),int(squareLoc.y+0.5*minimapGridSize.y)},3,enemyData[e.GetID()].col);
+									FillCircle(vi2d{int(squareLoc.x+0.5*minimapGridSize.x),int(squareLoc.y+0.5*minimapGridSize.y)},3,enemyData[e.GetID()].col*(1-(float(dist)/MAP_VISIBILITY)));
 								}
 							}
 						}