CLIENT: Font kerning implementation

progs/csqc.src

@@ -11,6 +11,7 @@ shared_defs.qc
 sound_enhanced.qc
 weapon_stats.qc
 defs/custom.qc
+draw.qc
 menu.qc
 achievements.qc
 hud.qc

source/client/draw.qc

@@ -0,0 +1,94 @@
+/*
+	client/draw.qc
+
+	Enhanced CSQC 2D Drawing Code
+
+	Copyright (C) 2021-2024 NZ:P Team
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+	See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+*/
+
+int font_kerningamount[96];
+
+// ! " # $ % & ' ( ) * _ , - . / 0
+// 1 2 3 4 5 6 7 8 9 : ; < = > ? @
+// A B C D E F G H I J K L M N O P
+// Q R S T U V W X Y Z [ \ ] ^ _ `
+// a b c d e f g h i j k l m n o p
+// q r s t u v w x y z { | } ~
+int font_kerningamount[96];
+
+void InitKerningMap(void)
+{
+	// Initialize the kerning amount as 8px for each
+	// char in the event we cant load the file.
+	for(int i = 0; i < 96; i++) {
+		font_kerningamount[i] = 8;
+	}
+
+    int kerning_map = fopen("gfx/kerning_map.txt", FILE_READ);
+    if (kerning_map == -1) {
+        return;
+    }
+
+    tokenize(fgets(kerning_map));
+    for(int i = 0; i < 96 * 2; i += 2) {
+        font_kerningamount[i / 2] = stof(argv(i));
+    }
+
+    fclose(kerning_map);
+}
+
+float(string text, float size) getTextWidth =
+{
+    int width = 0;
+
+    for(int i = 0; i < strlen(text); i++) {
+        float chr = str2chr(text, i);
+        // Hooray for variable-spacing!
+		if (chr == ' ')
+			width += 4 * (size/8);
+        else if (chr < 33 || chr > 126)
+            width += 8 * (size/8);
+        else
+            width += (font_kerningamount[(chr - 33)] + 1) * (size/8);
+    }
+
+    return width;
+}
+
+void(vector position, string text, vector size, vector rgb, float alpha, float drawflag) Draw_String =
+{
+    int x, y;
+    x = position_x;
+    y = position_y;
+    for(int i = 0; i < strlen(text); i++) {
+        float chr = str2chr(text, i);
+        drawcharacter([x, y], chr, size, rgb, alpha, drawflag);
+
+        // Hooray for variable-spacing!
+		if (chr == ' ')
+			x += 4 * (size_x/8);
+        else if (chr < 33 || chr > 126)
+            x += 8 * (size_x/8);
+        else
+            x += (font_kerningamount[(chr - 33)] + 1) * (size_x/8);
+    }
+};