Implement RGSS2 Tilemap class (TilemapVX)

shader/tilemapvx.vert

@@ -0,0 +1,33 @@
+
+uniform mat4 projMat;
+
+uniform vec2 texSizeInv;
+uniform vec2 translation;
+
+uniform vec2 aniOffset;
+
+attribute vec2 position;
+attribute vec2 texCoord;
+
+varying vec2 v_texCoord;
+
+const vec2 atAreaA = vec2(9.0*32.0, 12.0*32.0);
+const float atAreaCX = 12.0*32.0;
+const float atAreaCW = 4.0*32.0;
+
+void main()
+{
+	vec2 tex = texCoord;
+
+	/* Type A autotiles shift horizontally */
+	if (tex.x <= atAreaA.x && tex.y <= atAreaA.y)
+		tex.x += aniOffset.x;
+
+	/* Type C autotiles shift vertically */
+	if (tex.x >= atAreaCX && tex.x <= (atAreaCX+atAreaCW) && tex.y <= atAreaA.y)
+		tex.y += aniOffset.y;
+
+	gl_Position = projMat * vec4(position + translation, 0, 1);
+
+	v_texCoord = tex * texSizeInv;
+}