Differential D4687 Diff 20413 binaries/data/mods/public/maps/random/rmgen/painter/HeightmapPainter.js

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binaries/data/mods/public/maps/random/rmgen/painter/HeightmapPainter.js

Show All 12 Lines	function HeightmapPainter(heightmap, normalMinHeight = undefined, normalMaxHeight = undefined)
this.bicubicInterpolation = bicubicInterpolation;		this.bicubicInterpolation = bicubicInterpolation;
this.verticesPerSide = heightmap.length;		this.verticesPerSide = heightmap.length;
this.normalMinHeight = normalMinHeight;		this.normalMinHeight = normalMinHeight;
this.normalMaxHeight = normalMaxHeight;		this.normalMaxHeight = normalMaxHeight;
}		}

HeightmapPainter.prototype.getScale = function()		HeightmapPainter.prototype.getScale = function()
{		{
return this.verticesPerSide / (g_Map.getSize() + 1);		return this.verticesPerSide / (g_Map.getSize());
};		};

HeightmapPainter.prototype.scaleHeight = function(height)		HeightmapPainter.prototype.scaleHeight = function(height)
{		{
if (this.normalMinHeight === undefined \|\| this.normalMaxHeight === undefined)		if (this.normalMinHeight === undefined \|\| this.normalMaxHeight === undefined)
return height / this.getScale() / HEIGHT_UNITS_PER_METRE;		return height / this.getScale() / HEIGHT_UNITS_PER_METRE;

let minHeight = this.normalMinHeight * (g_Map.getSize() + 1) / 321;		let minHeight = this.normalMinHeight * (g_Map.getSize()) / 321;
		Lint: prefer-const Inline Actions 'minHeight' is never reassigned. Use 'const' instead. Lint: prefer-const: 'minHeight' is never reassigned. Use 'const' instead.
let maxHeight = this.normalMaxHeight * (g_Map.getSize() + 1) / 321;		let maxHeight = this.normalMaxHeight * (g_Map.getSize()) / 321;
		Lint: prefer-const Inline Actions 'maxHeight' is never reassigned. Use 'const' instead. Lint: prefer-const: 'maxHeight' is never reassigned. Use 'const' instead.

return minHeight + (maxHeight - minHeight) * height / 0xFFFF;		return minHeight + (maxHeight - minHeight) * height / 0xFFFF;
};		};

HeightmapPainter.prototype.paint = function(area)		HeightmapPainter.prototype.paint = function(area)
{		{
let scale = this.getScale();		let scale = this.getScale();
let leftBottom = new Vector2D(0, 0);		let leftBottom = new Vector2D(0, 0);
let rightTop = new Vector2D(this.verticesPerSide, this.verticesPerSide);		let rightTop = new Vector2D(this.verticesPerSide, this.verticesPerSide);
let brushSize = new Vector2D(3, 3);		let brushSize = new Vector2D(3, 3);
let brushCenter = new Vector2D(1, 1);		let brushCenter = new Vector2D(1, 1);

// Additional complexity to process all 4 vertices of each tile, i.e the last row too		// Additional complexity to process all 4 vertices of each tile, i.e the last row too
let seen = new Array(g_Map.height.length).fill(0).map(zero => new Uint8Array(g_Map.height.length).fill(0));		let seen = new Array(g_Map.height.length).fill(0).map(zero => new Uint8Array(g_Map.height.length).fill(0));

for (let point of area.getPoints())		for (let point of area.getPoints())
for (let vertex of g_TileVertices)		for (let vertex of g_TileVertices)
{		{
let vertexPos = Vector2D.add(point, vertex);		let vertexPos = Vector2D.add(point, vertex);

if (!g_Map.validHeight(vertexPos) \|\| seen[vertexPos.x][vertexPos.y])		if (!g_Map.validVertex(vertexPos) \|\| seen[vertexPos.x][vertexPos.y])
continue;		continue;

seen[vertexPos.x][vertexPos.y] = 1;		seen[vertexPos.x][vertexPos.y] = 1;

let sourcePos = Vector2D.mult(vertexPos, scale);		let sourcePos = Vector2D.mult(vertexPos, scale);
let sourceTilePos = sourcePos.clone().floor();		let sourceTilePos = sourcePos.clone().floor();

let brushPosition = Vector2D.max(		let brushPosition = Vector2D.max(
leftBottom,		leftBottom,
Vector2D.min(		Vector2D.min(
Vector2D.sub(sourceTilePos, brushCenter),		Vector2D.sub(sourceTilePos, brushCenter),
Vector2D.sub(rightTop, brushSize).sub(brushCenter)));		Vector2D.sub(rightTop, brushSize).sub(brushCenter)));

g_Map.setHeight(vertexPos, bicubicInterpolation(		g_Map.setVertexHeight(vertexPos, bicubicInterpolation(
Vector2D.sub(sourcePos, brushPosition).sub(brushCenter),		Vector2D.sub(sourcePos, brushPosition).sub(brushCenter),
...getPointsInBoundingBox(getBoundingBox([brushPosition, Vector2D.add(brushPosition, brushSize)])).map(pos =>		...getPointsInBoundingBox(getBoundingBox([brushPosition, Vector2D.add(brushPosition, brushSize)])).map(pos =>
this.scaleHeight(this.heightmap[pos.x][pos.y]))));		this.scaleHeight(this.heightmap[pos.x][pos.y]))));
}		}
};		};