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Make Color properly immutable

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Signed-off-by: TheMode <themode@outlook.fr>
This commit is contained in:
TheMode 2021-12-16 20:55:31 +01:00
parent a93dac5c66
commit f708750045
1 changed files with 37 additions and 105 deletions
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142
src/main/java/net/minestom/server/color/Color.java
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@ -5,15 +5,19 @@ import net.minestom.server.utils.MathUtils;
import net.minestom.server.utils.validate.Check;
import org.jetbrains.annotations.NotNull;
import java.util.Objects;
/**
* A general purpose class for representing colors.
* <p>
* Colors must be in the range of 0-255.
*/
public class Color implements RGBLike {
public record Color(int red, int green, int blue) implements RGBLike {
private static final int BIT_MASK = 0xff;
private int red, green, blue;
public Color {
Check.argCondition(!MathUtils.isBetween(red, 0, 255), "Red is not between 0-255: {0}", red);
Check.argCondition(!MathUtils.isBetween(green, 0, 255), "Green is not between 0-255: {0}", green);
Check.argCondition(!MathUtils.isBetween(blue, 0, 255), "Blue is not between 0-255: {0}", blue);
}
/**
* Creates a color from an integer. This is done by reading each color component
@ -31,82 +35,20 @@ public class Color implements RGBLike {
*
* @param rgbLike the color
*/
public Color(RGBLike rgbLike) {
public Color(@NotNull RGBLike rgbLike) {
this(rgbLike.red(), rgbLike.green(), rgbLike.blue());
}
/**
* Creates a color from red, green, and blue components.
*
* @param red the red component
* @param green the green component
* @param blue the blue component
* @throws IllegalArgumentException if any component value is not between 0-255 (inclusive)
*/
public Color(int red, int green, int blue) {
Check.argCondition(!MathUtils.isBetween(red, 0, 255), "Red is not between 0-255: {0}", red);
Check.argCondition(!MathUtils.isBetween(green, 0, 255), "Green is not between 0-255: {0}", green);
Check.argCondition(!MathUtils.isBetween(blue, 0, 255), "Blue is not between 0-255: {0}", blue);
this.red = red;
this.green = green;
this.blue = blue;
public @NotNull Color withRed(int red) {
return new Color(red, green, blue);
}
/**
* Gets the red component.
*
* @return red component, between 0-255 (inclusive)
*/
public int getRed() {
return this.red;
public @NotNull Color withGreen(int green) {
return new Color(red, green, blue);
}
/**
* Creates a new Color object with specified component
*
* @param red the red component, from 0 to 255
*/
public void setRed(int red) {
Check.argCondition(!MathUtils.isBetween(red, 0, 255), "Red is not between 0-255: {0}", red);
this.red = red;
}
/**
* Gets the green component
*
* @return green component, from 0 to 255
*/
public int getGreen() {
return this.green;
}
/**
* Creates a new Color object with specified component
*
* @param green the red component, from 0 to 255
*/
public void setGreen(int green) {
Check.argCondition(!MathUtils.isBetween(green, 0, 255), "Green is not between 0-255: {0}", green);
this.green = green;
}
/**
* Gets the blue component
*
* @return blue component, from 0 to 255
*/
public int getBlue() {
return this.blue;
}
/**
* Sets the blue component of this color.
*
* @param blue the red component, from 0 to 255
*/
public void setBlue(int blue) {
Check.argCondition(!MathUtils.isBetween(blue, 0, 255), "Blue is not between 0-255: {0}", blue);
this.blue = blue;
public @NotNull Color withBlue(int blue) {
return new Color(red, green, blue);
}
/**
@ -129,23 +71,25 @@ public class Color implements RGBLike {
*
* @param colors the colors
*/
public void mixWith(@NotNull RGBLike... colors) {
// store the current highest component
int max = Math.max(Math.max(this.red, this.green), this.blue);
public @NotNull Color mixWith(@NotNull RGBLike... colors) {
int r = red, g = green, b = blue;
// now combine all of the color components, adding to the max
// store the current highest component
int max = Math.max(Math.max(r, g), b);
// now combine all the color components, adding to the max
for (RGBLike color : colors) {
this.red += color.red();
this.green += color.green();
this.blue += color.blue();
r += color.red();
g += color.green();
b += color.blue();
max += Math.max(Math.max(color.red(), color.green()), color.blue());
}
// work out the averages
float count = colors.length + 1;
float averageRed = this.red / count;
float averageGreen = this.green / count;
float averageBlue = this.blue / count;
float averageRed = r / count;
float averageGreen = g / count;
float averageBlue = b / count;
float averageMax = max / count;
// work out the scale factor
@ -153,36 +97,24 @@ public class Color implements RGBLike {
float gainFactor = averageMax / maximumOfAverages;
// round and multiply
this.red = Math.round(averageRed * gainFactor);
this.blue = Math.round(averageBlue * gainFactor);
this.green = Math.round(averageGreen * gainFactor);
r = Math.round(averageRed * gainFactor);
g = Math.round(averageGreen * gainFactor);
b = Math.round(averageBlue * gainFactor);
return new Color(r, g, b);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Color color = (Color) o;
return red == color.red && green == color.green && blue == color.blue;
}
@Override
public int hashCode() {
return Objects.hash(red, green, blue);
}
@Override
public int red() {
@Deprecated
public int getRed() {
return this.red;
}
@Override
public int green() {
@Deprecated
public int getGreen() {
return this.green;
}
@Override
public int blue() {
@Deprecated
public int getBlue() {
return this.blue;
}
}