forked from Mirrors/openclonk
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*--
|
|
Material.c
|
|
Authors: Ringwaul
|
|
|
|
Functions in relation to material; any kind of operations.
|
|
--*/
|
|
|
|
global func MaterialDepthCheck(int x, int y, string mat, int depth)
|
|
{
|
|
var travelled;
|
|
var xval = x;
|
|
var yval = y;
|
|
|
|
//If depth is equal to zero, the function will always measure the depth of the material.
|
|
//If depth is not equal to zero, the function will return true if the material is as deep or deeper than depth (in pixels).
|
|
if (depth == nil)
|
|
depth = LandscapeHeight();
|
|
|
|
while (travelled != depth)
|
|
{
|
|
if (GetMaterial(xval, yval) == Material(mat))
|
|
{
|
|
travelled++;
|
|
yval++;
|
|
}
|
|
if (GetMaterial(xval, yval) != Material(mat))
|
|
return travelled; // Returns depth of material.
|
|
}
|
|
if (travelled == depth)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
global func FindPosInMat(string sMat, int iXStart, int iYStart, int iWidth, int iHeight, int iSize)
|
|
{
|
|
var iX, iY;
|
|
var iMaterial = Material(sMat);
|
|
for(var i = 0; i < 500; i++)
|
|
{
|
|
iX = AbsX(iXStart+Random(iWidth));
|
|
iY = AbsY(iYStart+Random(iHeight));
|
|
if(GetMaterial(iX,iY)==iMaterial &&
|
|
GetMaterial(iX+iSize,iY+iSize)==iMaterial &&
|
|
GetMaterial(iX+iSize,iY-iSize)==iMaterial &&
|
|
GetMaterial(iX-iSize,iY-iSize)==iMaterial &&
|
|
GetMaterial(iX-iSize,iY+iSize)==iMaterial
|
|
) {
|
|
return [iX, iY]; // Location found.
|
|
}
|
|
}
|
|
return 0; // No location found.
|
|
}
|
|
|
|
/** Removes a material pixel from the specified location, if the material is a liquid.
|
|
@param x X coordinate
|
|
@param y Y coordinate
|
|
@return The material index of the removed pixel, or -1 if no liquid was found. */
|
|
global func ExtractLiquid(int x, int y)
|
|
{
|
|
var result = ExtractLiquidAmount(x, y, 1);
|
|
if(!result) return -1;
|
|
|
|
return result[0];
|
|
}
|
|
|
|
/** Tries to remove amount material pixels from the specified location if the material is a liquid.
|
|
@param x X coordinate
|
|
@param y Y coordinate
|
|
@param amount amount of liquid that should be extracted
|
|
@return an array with the first position being the material index being extracted and the second the
|
|
actual amount of pixels extracted OR nil if there was no liquid at all */
|
|
global func ExtractLiquidAmount(int x, int y, int amount)
|
|
{
|
|
var mat = GetMaterial(x, y);
|
|
if(mat == -1)
|
|
return nil;
|
|
var density = GetMaterialVal("Density", "Material", mat);
|
|
if (density < C4M_Liquid || density >= C4M_Solid)
|
|
return nil;
|
|
var amount = ExtractMaterialAmount(x, y, mat, amount);
|
|
if (amount <= 0)
|
|
return nil;
|
|
return [mat, amount];
|
|
}
|
|
|
|
/** Removes a material pixel from the specified location, if the material is flammable
|
|
@param x X coordinate. Offset if called in object context.
|
|
@param y Y coordinate. Offset if called in object context.
|
|
@return true if material was removed, false otherwise. */
|
|
global func FlameConsumeMaterial(int x, int y)
|
|
{
|
|
var mat = GetMaterial(x, y);
|
|
if (mat == -1)
|
|
return false;
|
|
if (!GetMaterialVal("Inflammable", "Material", mat))
|
|
return false;
|
|
return !!ExtractMaterialAmount(x, y, mat, 1);
|
|
} |