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added text animation

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This commit is contained in:
Ellpeck 2019-09-06 15:49:59 +02:00
parent a46e8fce86
commit b2b59aa78a
5 changed files with 95 additions and 27 deletions
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6
Demos/UiDemo.cs
View file

@ -102,6 +102,12 @@ namespace Demos {
TextFormatting.FormattingCodes["tree"] = new FormattingCode(tree);
root.AddChild(new Paragraph(Anchor.AutoLeft, 1, "Additionally, you can create custom formatting codes that contain [Grass] images! Note that these images have to be square, or [Tree] bad things happen."));
var animatedPar = root.AddChild(new Paragraph(Anchor.AutoLeft, 1, "Defining text animations as formatting codes is also possible, including [Wobbly]wobbly text[Unanimated] as well as a [Typing]dialogue-esc typing effect by default. Of course, more animations can be added though."));
root.AddChild(new Button(Anchor.AutoCenter, new Vector2(1, 10), "Reset Typing Animation") {
// to reset any animation, simply change the paragraph's TimeIntoAnimation
OnPressed = e => animatedPar.TimeIntoAnimation = TimeSpan.Zero
});
root.AddChild(new VerticalSpace(3));
root.AddChild(new Paragraph(Anchor.AutoCenter, 1, "Text input:", true));
root.AddChild(new TextField(Anchor.AutoLeft, new Vector2(1, 10)) {

4
MLEM.Ui/Elements/Paragraph.cs
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@ -35,6 +35,7 @@ namespace MLEM.Ui.Elements {
}
public bool AutoAdjustWidth;
public TextCallback GetTextCallback;
public TimeSpan TimeIntoAnimation;
public Paragraph(Anchor anchor, float width, TextCallback textCallback, bool centerText = false)
: this(anchor, width, "", centerText) {
@ -64,6 +65,7 @@ namespace MLEM.Ui.Elements {
base.Update(time);
if (this.GetTextCallback != null)
this.Text = this.GetTextCallback(this);
this.TimeIntoAnimation += time.ElapsedGameTime;
}
public override void Draw(GameTime time, SpriteBatch batch, float alpha) {
@ -78,7 +80,7 @@ namespace MLEM.Ui.Elements {
this.regularFont.DrawString(batch, this.splitText, pos, this.TextColor * alpha, 0, Vector2.Zero, sc, SpriteEffects.None, 0);
} else {
// if we have formatting codes, we should do it
this.regularFont.DrawFormattedString(batch, pos, this.splitText, this.codeLocations, this.TextColor * alpha, sc, this.boldFont, this.italicFont);
this.regularFont.DrawFormattedString(batch, pos, this.splitText, this.codeLocations, this.TextColor * alpha, sc, this.boldFont, this.italicFont, 0, this.TimeIntoAnimation);
}
base.Draw(time, batch, alpha);
}

9
MLEM/Formatting/FormattingCode.cs
View file

@ -8,6 +8,7 @@ namespace MLEM.Formatting {
public readonly Color Color;
public readonly TextStyle Style;
public readonly TextureRegion Icon;
public readonly TextAnimation.DrawCharacter Animation;
public FormattingCode(Color color) {
this.Color = color;
@ -24,6 +25,11 @@ namespace MLEM.Formatting {
this.CodeType = Type.Icon;
}
public FormattingCode(TextAnimation.DrawCharacter animation) {
this.Animation = animation;
this.CodeType = Type.Animation;
}
public string GetReplacementString() {
return this.CodeType == Type.Icon ? TextFormatting.OneEmString : string.Empty;
}
@ -32,7 +38,8 @@ namespace MLEM.Formatting {
Color,
Style,
Icon
Icon,
Animation
}

30
MLEM/Formatting/TextAnimation.cs Normal file
View file

@ -0,0 +1,30 @@
using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using MLEM.Font;
namespace MLEM.Formatting {
public static class TextAnimation {
public static float WobbleModifier = 5;
public static float WobbleHeightModifier = 1 / 8F;
public static float TypingSpeed = 20;
public static readonly DrawCharacter Default = (font, batch, totalText, index, effectStartIndex, charSt, position, color, scale, layerDepth, timeIntoAnimation) => {
font.DrawString(batch, charSt, position, color, 0, Vector2.Zero, scale, SpriteEffects.None, layerDepth);
};
public static readonly DrawCharacter Wobbly = (font, batch, totalText, index, effectStartIndex, charSt, position, color, scale, layerDepth, timeIntoAnimation) => {
var offset = new Vector2(0, (float) Math.Sin(index + timeIntoAnimation.TotalSeconds * WobbleModifier) * font.LineHeight * WobbleHeightModifier * scale);
font.DrawString(batch, charSt, position + offset, color, 0, Vector2.Zero, scale, SpriteEffects.None, layerDepth);
};
public static readonly DrawCharacter Typing = (font, batch, totalText, index, effectStartIndex, charSt, position, color, scale, layerDepth, timeIntoAnimation) => {
if (timeIntoAnimation.TotalSeconds * TypingSpeed > index - effectStartIndex + 1)
font.DrawString(batch, charSt, position, color, 0, Vector2.Zero, scale, SpriteEffects.None, layerDepth);
};
public delegate void DrawCharacter(IGenericFont font, SpriteBatch batch, string totalText, int index, int effectStartIndex, string charSt, Vector2 position, Color color, float scale, float layerDepth, TimeSpan timeIntoAnimation);
}
}

73
MLEM/Formatting/TextFormatting.cs
View file

@ -1,3 +1,4 @@
using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using Microsoft.Xna.Framework;
@ -20,15 +21,22 @@ namespace MLEM.Formatting {
static TextFormatting() {
SetFormatIndicators('[', ']');
// style codes
FormattingCodes["regular"] = new FormattingCode(TextStyle.Regular);
FormattingCodes["italic"] = new FormattingCode(TextStyle.Italic);
FormattingCodes["bold"] = new FormattingCode(TextStyle.Bold);
// color codes
var colors = typeof(Color).GetProperties();
foreach (var color in colors) {
if (color.GetGetMethod().IsStatic)
FormattingCodes[color.Name.ToLowerInvariant()] = new FormattingCode((Color) color.GetValue(null));
}
// animations
FormattingCodes["unanimated"] = new FormattingCode(TextAnimation.Default);
FormattingCodes["wobbly"] = new FormattingCode(TextAnimation.Wobbly);
FormattingCodes["typing"] = new FormattingCode(TextAnimation.Typing);
}
public static void SetFormatIndicators(char opener, char closer) {
@ -40,7 +48,10 @@ namespace MLEM.Formatting {
}
public static string RemoveFormatting(this string s) {
return formatRegex.Replace(s, match => FromMatch(match).GetReplacementString());
return formatRegex.Replace(s, match => {
var code = FromMatch(match);
return code != null ? code.GetReplacementString() : string.Empty;
});
}
public static Dictionary<int, FormattingCode> GetFormattingCodes(this string s) {
@ -48,50 +59,61 @@ namespace MLEM.Formatting {
var codeLengths = 0;
foreach (Match match in formatRegex.Matches(s)) {
var code = FromMatch(match);
if (code == null)
continue;
codes[match.Index - codeLengths] = code;
codeLengths += match.Length - code.GetReplacementString().Length;
}
return codes;
}
public static void DrawFormattedString(this IGenericFont regularFont, SpriteBatch batch, Vector2 pos, string text, Dictionary<int, FormattingCode> codeLocations, Color color, float scale, IGenericFont boldFont = null, IGenericFont italicFont = null, float depth = 0) {
var characterCounter = 0;
public static void DrawFormattedString(this IGenericFont regularFont, SpriteBatch batch, Vector2 pos, string text, Dictionary<int, FormattingCode> codeLocations, Color color, float scale, IGenericFont boldFont = null, IGenericFont italicFont = null, float depth = 0, TimeSpan timeIntoAnimation = default) {
var currColor = color;
var currFont = regularFont;
var currAnim = TextAnimation.Default;
var animStart = 0;
var innerOffset = new Vector2();
foreach (var c in text) {
for (var i = 0; i < text.Length; i++) {
// check if the current character's index has a formatting code
codeLocations.TryGetValue(characterCounter, out var code);
codeLocations.TryGetValue(i, out var code);
if (code != null) {
// if so, apply it
if (code.CodeType == FormattingCode.Type.Color) {
currColor = code.Color.CopyAlpha(color);
} else if (code.CodeType == FormattingCode.Type.Style) {
switch (code.Style) {
case TextStyle.Regular:
currFont = regularFont;
break;
case TextStyle.Bold:
currFont = boldFont ?? regularFont;
break;
case TextStyle.Italic:
currFont = italicFont ?? regularFont;
break;
}
} else if (code.CodeType == FormattingCode.Type.Icon) {
var iconSc = new Vector2(1F / code.Icon.Width, 1F / code.Icon.Height) * regularFont.LineHeight * scale;
batch.Draw(code.Icon, pos + innerOffset, color, 0, Vector2.Zero, iconSc, SpriteEffects.None, depth);
switch (code.CodeType) {
case FormattingCode.Type.Color:
currColor = code.Color.CopyAlpha(color);
break;
case FormattingCode.Type.Style:
switch (code.Style) {
case TextStyle.Regular:
currFont = regularFont;
break;
case TextStyle.Bold:
currFont = boldFont ?? regularFont;
break;
case TextStyle.Italic:
currFont = italicFont ?? regularFont;
break;
}
break;
case FormattingCode.Type.Icon:
var iconSc = new Vector2(1F / code.Icon.Width, 1F / code.Icon.Height) * regularFont.LineHeight * scale;
batch.Draw(code.Icon, pos + innerOffset, color, 0, Vector2.Zero, iconSc, SpriteEffects.None, depth);
break;
case FormattingCode.Type.Animation:
currAnim = code.Animation;
animStart = i;
break;
}
}
characterCounter++;
var c = text[i];
var cSt = c.ToString();
if (c == '\n') {
innerOffset.X = 0;
innerOffset.Y += regularFont.LineHeight * scale;
} else {
currFont.DrawString(batch, cSt, pos + innerOffset, currColor, 0, Vector2.Zero, scale, SpriteEffects.None, depth);
currAnim(currFont, batch, text, i, animStart, cSt, pos + innerOffset, currColor, scale, depth, timeIntoAnimation);
// we measure the string with the regular font here so that previously split
// strings don't get too long with a bolder font. This shouldn't effect visuals too much
innerOffset.X += regularFont.MeasureString(cSt).X * scale;
@ -101,7 +123,8 @@ namespace MLEM.Formatting {
private static FormattingCode FromMatch(Capture match) {
var rawCode = match.Value.Substring(1, match.Value.Length - 2).ToLowerInvariant();
return FormattingCodes[rawCode];
FormattingCodes.TryGetValue(rawCode, out var val);
return val;
}
}