RMS.LoadLibrary("rmgen");

// terrain textures
const tGrass = ["temp_grass", "temp_grass", "temp_grass_d"];
const tGrassPForest = "temp_plants_bog";
const tGrassDForest = "temp_plants_bog";
const tGrassA = "temp_grass_plants";
const tGrassB = "temp_plants_bog";
const tGrassC = "temp_mud_a";
const tDirt = ["temp_plants_bog", "temp_mud_a"];
const tHill = ["temp_highlands", "temp_grass_long_b"];
const tCliff = ["temp_cliff_a", "temp_cliff_b"];
const tRoad = "temp_road";
const tRoadWild = "temp_road_overgrown";
const tGrassPatchBlend = "temp_grass_long_b";
const tGrassPatch = ["temp_grass_d", "temp_grass_clovers"];
const tShoreBlend = "temp_grass_plants";
const tShore = "temp_plants_bog";
const tWater = "temp_mud_a";

// gaia entities
const oOak = "gaia/flora_tree_oak";
const oOakLarge = "gaia/flora_tree_oak_large";
const oApple = "gaia/flora_tree_apple";
const oPine = "gaia/flora_tree_pine";
const oAleppoPine = "gaia/flora_tree_aleppo_pine";
const oBerryBush = "gaia/flora_bush_berry";
const oChicken = "gaia/fauna_chicken";
const oDeer = "gaia/fauna_deer";
const oFish = "gaia/fauna_fish";
const oSheep = "gaia/fauna_sheep";
const oStoneLarge = "gaia/geology_stonemine_temperate_quarry";
const oStoneSmall = "gaia/geology_stone_temperate";
const oMetalLarge = "gaia/geology_metal_temperate_slabs";

// decorative props
const aGrass = "actor|props/flora/grass_soft_large_tall.xml";
const aGrassShort = "actor|props/flora/grass_soft_large.xml";
const aReeds = "actor|props/flora/reeds_pond_lush_a.xml";
const aLillies = "actor|props/flora/pond_lillies_large.xml";
const aRockLarge = "actor|geology/stone_granite_large.xml";
const aRockMedium = "actor|geology/stone_granite_med.xml";
const aBushMedium = "actor|props/flora/bush_medit_me.xml";
const aBushSmall = "actor|props/flora/bush_medit_sm.xml";

// terrain + entity (for painting)
const pForestD = [tGrassDForest + TERRAIN_SEPARATOR + oOak, tGrassDForest + TERRAIN_SEPARATOR + oOakLarge, tGrassDForest];
const pForestP = [tGrassPForest + TERRAIN_SEPARATOR + oPine, tGrassPForest + TERRAIN_SEPARATOR + oAleppoPine, tGrassPForest];

const BUILDING_ANGlE = -PI/4;

// initialize map

log("Initializing map...");

InitMap();

var numPlayers = getNumPlayers();
var mapSize = getMapSize();
var mapArea = mapSize*mapSize;

// create tile classes

var clPlayer = createTileClass();
var clHill = createTileClass();
var clForest = createTileClass();
var clWater = createTileClass();
var clDirt = createTileClass();
var clRock = createTileClass();
var clMetal = createTileClass();
var clFood = createTileClass();
var clBaseResource = createTileClass();
var clSettlement = createTileClass();

// randomize player order
var playerIDs = [];
for (var i = 0; i < numPlayers; i++)
{
	playerIDs.push(i+1);
}
playerIDs = sortPlayers(playerIDs);

// place players

var playerX = new Array(numPlayers);
var playerZ = new Array(numPlayers);
var playerAngle = new Array(numPlayers);

var startAngle = randFloat(0, TWO_PI);
for (var i = 0; i < numPlayers; i++)
{
	playerAngle[i] = startAngle + i*TWO_PI/numPlayers;
	playerX[i] = 0.5 + 0.35*cos(playerAngle[i]);
	playerZ[i] = 0.5 + 0.35*sin(playerAngle[i]);
}

for (var i = 0; i < numPlayers; i++)
{
	var id = playerIDs[i];
	log("Creating base for player " + id + "...");
	
	// some constants
	var radius = scaleByMapSize(15,25);
	var cliffRadius = 2;
	var elevation = 20;
	
	// get the x and z in tiles
	var fx = fractionToTiles(playerX[i]);
	var fz = fractionToTiles(playerZ[i]);
	var ix = round(fx);
	var iz = round(fz);

	// calculate size based on the radius
	var hillSize = PI * radius * radius;
	
	// create the hill
	var placer = new ClumpPlacer(hillSize, 0.95, 0.6, 10, ix, iz);
	var terrainPainter = new LayeredPainter(
		[tCliff, tHill],		// terrains
		[cliffRadius]		// widths
	);
	var elevationPainter = new SmoothElevationPainter(
		ELEVATION_SET,			// type
		elevation,				// elevation
		cliffRadius				// blend radius
	);
	createArea(placer, [terrainPainter, elevationPainter, paintClass(clPlayer)], null);
	
	// create the ramp
	var rampAngle = playerAngle[i] + PI + randFloat(-PI/8, PI/8);
	var rampDist = radius;
	var rampLength = 15;
	var rampWidth = 12;
	var rampX1 = round(fx + (rampDist + rampLength) * cos(rampAngle));
	var rampZ1 = round(fz + (rampDist + rampLength) * sin(rampAngle));
	var rampX2 = round(fx + (rampDist - 3) * cos(rampAngle));
	var rampZ2 = round(fz + (rampDist - 3) * sin(rampAngle));
	
	createRamp (rampX1, rampZ1, rampX2, rampZ2, 3, 20, rampWidth, 2, tHill, tCliff, clPlayer);
	
	// create the city patch
	var cityRadius = radius/3;
	placer = new ClumpPlacer(PI*cityRadius*cityRadius, 0.6, 0.3, 10, ix, iz);
	var painter = new LayeredPainter([tRoadWild, tRoad], [1]);
	createArea(placer, painter, null);
	
	// create starting units
	placeCivDefaultEntities(fx, fz, id, BUILDING_ANGlE, {'iberWall' : false});
	
	// create animals
	for (var j = 0; j < 2; ++j)
	{
		var aAngle = randFloat(0, TWO_PI);
		var aDist = 7;
		var aX = round(fx + aDist * cos(aAngle));
		var aZ = round(fz + aDist * sin(aAngle));
		var group = new SimpleGroup(
			[new SimpleObject(oChicken, 5,5, 0,2)],
			true, clBaseResource, aX, aZ
		);
		createObjectGroup(group, 0);
	}
	
	// create berry bushes
	var bbAngle = randFloat(0, TWO_PI);
	var bbDist = 12;
	var bbX = round(fx + bbDist * cos(bbAngle));
	var bbZ = round(fz + bbDist * sin(bbAngle));
	group = new SimpleGroup(
		[new SimpleObject(oBerryBush, 5,5, 0,3)],
		true, clBaseResource, bbX, bbZ
	);
	createObjectGroup(group, 0);
	
	// create metal mine
	var mAngle = bbAngle;
	while(abs(mAngle - bbAngle) < PI/3)
	{
		mAngle = randFloat(0, TWO_PI);
	}
	var mDist = 12;
	var mX = round(fx + mDist * cos(mAngle));
	var mZ = round(fz + mDist * sin(mAngle));
	group = new SimpleGroup(
		[new SimpleObject(oMetalLarge, 1,1, 0,0)],
		true, clBaseResource, mX, mZ
	);
	createObjectGroup(group, 0);
	
	// create stone mines
	mAngle += randFloat(PI/8, PI/4);
	mX = round(fx + mDist * cos(mAngle));
	mZ = round(fz + mDist * sin(mAngle));
	group = new SimpleGroup(
		[new SimpleObject(oStoneLarge, 1,1, 0,2)],
		true, clBaseResource, mX, mZ
	);
	createObjectGroup(group, 0);
	
	// create starting trees
	var num = 2;
	var tAngle = randFloat(-PI/3, 4*PI/3);
	var tDist = randFloat(11, 13);
	var tX = round(fx + tDist * cos(tAngle));
	var tZ = round(fz + tDist * sin(tAngle));
	group = new SimpleGroup(
		[new SimpleObject(oOak, num, num, 0,5)],
		false, clBaseResource, tX, tZ
	);
	createObjectGroup(group, 0, avoidClasses(clBaseResource,2));
	
	// create grass tufts
	var num = hillSize / 250;
	for (var j = 0; j < num; j++)
	{
		var gAngle = randFloat(0, TWO_PI);
		var gDist = radius - (5 + randInt(7));
		var gX = round(fx + gDist * cos(gAngle));
		var gZ = round(fz + gDist * sin(gAngle));
		group = new SimpleGroup(
			[new SimpleObject(aGrassShort, 2,5, 0,1, -PI/8,PI/8)],
			false, clBaseResource, gX, gZ
		);
		createObjectGroup(group, 0);
	}
}

RMS.SetProgress(10);

// create lakes
log("Creating lakes...");
var numLakes = round(scaleByMapSize(1,4) * numPlayers);
placer = new ClumpPlacer(scaleByMapSize(100,250), 0.8, 0.1, 10);
terrainPainter = new LayeredPainter(
	[tShoreBlend, tShore, tWater],		// terrains
	[1,1]							// widths
);
elevationPainter = new SmoothElevationPainter(ELEVATION_SET, -7, 6);
var waterAreas = createAreas(
	placer,
	[terrainPainter, elevationPainter, paintClass(clWater)], 
	avoidClasses(clPlayer, 2, clWater, 20),
	numLakes
);

RMS.SetProgress(15);

// create reeds
log("Creating reeds...");
group = new SimpleGroup(
	[new SimpleObject(aReeds, 5,10, 0,4), new SimpleObject(aLillies, 0,1, 0,4)], true
);
createObjectGroupsByAreas(group, 0,
	[borderClasses(clWater, 3, 0), stayClasses(clWater, 1)],
	numLakes, 100,
	waterAreas
);

RMS.SetProgress(20);

// create fish
log("Creating fish...");
group = new SimpleGroup(
	[new SimpleObject(oFish, 1,1, 0,1)],
	true, clFood
);
createObjectGroupsByAreas(group, 0,
	borderClasses(clWater, 2, 0),  avoidClasses(clFood, 8),
	numLakes, 50,
	waterAreas
);
waterAreas = [];

RMS.SetProgress(25);

// create bumps
createBumps(avoidClasses(clWater, 2, clPlayer, 0));

RMS.SetProgress(30);

// create hills
log("Creating hills...");
createHills([tCliff, tCliff, tHill], avoidClasses(clPlayer, 2, clWater, 5, clHill, 15), clHill, scaleByMapSize(1, 4) * numPlayers);

RMS.SetProgress(35);

// create forests
createForests(
 [tGrass, tGrassDForest, tGrassPForest, pForestP, pForestD],
 avoidClasses(clPlayer, 1, clWater, 3, clForest, 17, clHill, 1), 
 clForest
);

RMS.SetProgress(40);

// create dirt patches
log("Creating dirt patches...");
createLayeredPatches(
 [scaleByMapSize(3, 6), scaleByMapSize(5, 10), scaleByMapSize(8, 21)],
 [[tGrass,tGrassA],[tGrassA,tGrassB], [tGrassB,tGrassC]],
 [1,1],
 avoidClasses(clWater, 1, clForest, 0, clHill, 0, clDirt, 5, clPlayer, 0)
);

RMS.SetProgress(45);

// create grass patches
log("Creating grass patches...");
createLayeredPatches(
 [scaleByMapSize(2, 4), scaleByMapSize(3, 7), scaleByMapSize(5, 15)],
 [tGrassPatchBlend, tGrassPatch],
 [1],
 avoidClasses(clWater, 1, clForest, 0, clHill, 0, clDirt, 5, clPlayer, 0)
);

RMS.SetProgress(50);

log("Creating stone mines...");
// create stone quarries
createMines(
 [
  [new SimpleObject(oStoneSmall, 0,2, 0,4), new SimpleObject(oStoneLarge, 1,1, 0,4)],
  [new SimpleObject(oStoneSmall, 2,5, 1,3)]
 ],
 avoidClasses(clWater, 0, clForest, 1, clPlayer, 5, clRock, 10, clHill, 1)
)

log("Creating metal mines...");
// create large metal quarries
createMines(
 [
  [new SimpleObject(oMetalLarge, 1,1, 0,4)]
 ],
 avoidClasses(clWater, 0, clForest, 1, clPlayer, 5, clMetal, 10, clRock, 5, clHill, 1),
 clMetal
)

RMS.SetProgress(60);

//create decoration
createDecoration
(
 [[new SimpleObject(aRockMedium, 1,3, 0,1)], 
  [new SimpleObject(aRockLarge, 1,2, 0,1), new SimpleObject(aRockMedium, 1,3, 0,2)],
  [new SimpleObject(aGrassShort, 1,2, 0,1, -PI/8,PI/8)],
  [new SimpleObject(aGrass, 2,4, 0,1.8, -PI/8,PI/8), new SimpleObject(aGrassShort, 3,6, 1.2,2.5, -PI/8,PI/8)],
  [new SimpleObject(aBushMedium, 1,2, 0,2), new SimpleObject(aBushSmall, 2,4, 0,2)]
 ],
 [
  scaleByMapSize(16, 262),
  scaleByMapSize(8, 131),
  scaleByMapSize(13, 200),
  scaleByMapSize(13, 200),
  scaleByMapSize(13, 200)
 ],
 avoidClasses(clWater, 0, clForest, 0, clPlayer, 0, clHill, 0)
);

RMS.SetProgress(70);

// create animals
createFood
(
 [
  [new SimpleObject(oSheep, 2,3, 0,2)],
  [new SimpleObject(oDeer, 5,7, 0,4)]
 ], 
 [
  3 * numPlayers,
  3 * numPlayers
 ],
 avoidClasses(clWater, 0, clForest, 0, clPlayer, 1, clHill, 1, clFood, 20)
);

// create fruits
createFood
(
 [
  [new SimpleObject(oBerryBush, 5,7, 0,4)]
 ], 
 [
  randInt(1, 4) * numPlayers + 2
 ],
 avoidClasses(clWater, 3, clForest, 0, clPlayer, 20, clHill, 1, clFood, 10)
);

RMS.SetProgress(90);

// create straggler trees
var types = [oOak, oOakLarge, oPine, oApple];	// some variation
createStragglerTrees(types, avoidClasses(clWater, 1, clForest, 1, clHill, 1, clPlayer, 1, clMetal, 1, clRock, 1));

// Set environment
setSkySet("cirrus");
setWaterColour(0.447, 0.412, 0.322);			// muddy brown
setWaterTint(0.447, 0.412, 0.322);				// muddy brown
setWaterReflectionTint(0.447, 0.412, 0.322);	// muddy brown
setWaterMurkiness(1.0);
setWaterWaviness(2.0);
setWaterReflectionTintStrength(0.677);

setFogThickness(0.25);
setFogFactor(0.4);

setPPEffect("hdr");
setPPSaturation(0.62);
setPPContrast(0.62);
setPPBloom(0.3);

// Export map data
ExportMap();