Failed to compile #<SHADER FRAGMENT-SHADER {100852D193}>: 
0:63(50): error: syntax error, unexpected NEW_IDENTIFIER, expecting '{'

Shader source:
  1 #version 330 core
  2 struct Light{
  3   int type;
  4   vec2 position;
  5   vec4 dimensions;
  6   vec3 color;
  7   float intensity;
  8 };
  9 ;
 10 layout(shared) uniform Lights{
 11   Light[16] lights;
 12   int count;
 13 } lights;
 14 uniform float global_illumination = 0.3;
 15 
 16 vec3 add(vec3 a, vec3 b){
 17   return (a + b);
 18 }
 19 
 20 vec3 screen(vec3 a, vec3 b){
 21   return (1 - ((1 - a) * (1 - b)));
 22 }
 23 
 24 vec3 overlay(vec3 a, vec3 b){
 25   return (length(a) < 0.5)? (2 * (a * b)) :(1 - (2 * ((1 - a) * (1 - b))));
 26 }
 27 
 28 vec3 soft_light(vec3 a, vec3 b){
 29   return (((1 - (2 * b)) * (a * a)) + (2 * (b * a)));
 30 }
 31 
 32 float point_light_sdf(vec2 position, vec4 dimensions){
 33   return (length(position) - dimensions.x);
 34 }
 35 
 36 float trapezoid_light_sdf(vec2 p, vec4 dimensions){
 37   vec2 c = vec2(sin((dimensions.x / 2)), cos((dimensions.x / 2)));
 38   float t = dimensions.y;
 39   float b = dimensions.z;
 40   float theta = dimensions.w;
 41   float h = p.y;
 42   mat2 rot;
 43   rot[0] = vec2(cos(theta), -sin(theta));
 44   rot[1] = vec2(sin(theta), cos(theta));
 45   p = (rot * p);
 46   p.x = abs(p.x);
 47   p.y += t;
 48   float m = length((p - (c * max(dot(p, c), 0.0))));
 49   return max(max((m * sign(((c.y * p.x) - (c.x * p.y)))), -h), -(b + -h));
 50 }
 51 
 52 float cone_light_sdf(vec2 p, vec4 dimensions){
 53   vec2 c = vec2(sin((dimensions.x / 2)), cos((dimensions.x / 2)));
 54   float r = (dimensions.y + dimensions.z);
 55   float t = dimensions.z;
 56   p.x = abs(p.x);
 57   p.y += t;
 58   float l = (length(p) - r);
 59   float m = length((p - (c * clamp(dot(p, c), 0.0, r))));
 60   return max(max(l, (m * sign(((c.y * p.x) - (c.x * p.y))))), (t - p.y));
 61 }
 62 
 63 float evaluate_light(vec2 position, struct Light light){
 64   switch(light.type){
 65   case 1: 
 66     return point_light_sdf(position, light.dimensions);
 67   case 2: 
 68     return trapezoid_light_sdf(position, light.dimensions);
 69   case 3: 
 70     return cone_light_sdf(position, light.dimensions);
 71   default: 
 72     return 1;
 73   };
 74   ;
 75 }
 76 
 77 vec3 shade_lights(vec3 albedo, vec2 position){
 78   vec3 color = vec3(0);
 79   for(int i = 0; (i < lights.count); ++i){
 80     Light light = lights.lights[i];
 81     vec2 relative_position = (light.position - position);
 82     float sdf = evaluate_light(relative_position, light);
 83     if((sdf <= 0)){
 84       color += (add(albedo.rgb, light.color) * (light.intensity * clamp((-sdf / 2), 0, 1)));
 85     };
 86     ;
 87   };
 88   ;
 89   color += (global_illumination * albedo);
 90   return color;
 91 }
 92 uniform usampler2DArray tilemap;
 93 uniform sampler2D tileset;
 94 uniform vec2 map_size;
 95 uniform vec2 map_position;
 96 uniform int tile_size;
 97 uniform int layer;
 98 in vec2 map_coord;
 99 out vec4 color;
100 
101 void _GLSLTK_main_1(){
102   ivec2 map_wh = (ivec2(map_size) * tile_size);
103   ivec2 map_xy = ((ivec2(map_coord) + (map_wh / 2)) - 1);
104   if(((map_xy.x < 0) || ((map_xy.y < 0) || ((map_wh.x <= map_xy.x) || (map_wh.y <= map_xy.y))))){
105     color = vec4(0);
106     return;
107   };
108   ;
109   ivec2 tile_xy = ivec2((map_xy.x / tile_size), (map_xy.y / tile_size));
110   ivec2 pixel_xy = ivec2((map_xy.x % tile_size), (map_xy.y % tile_size));
111   uvec2 tile = texelFetch(tilemap, ivec3(tile_xy, layer), 0).rg;
112   color = texelFetch(tileset, ((ivec2(tile) * tile_size) + pixel_xy), 0);
113   color.rgb = shade_lights(color.rgb, ((map_xy + map_position) - (map_wh / 2)));
114 }
115 
116 void _GLSLTK_main_2(){
117   _GLSLTK_main_1();
118 }
119 
120 void _GLSLTK_main_3(){
121 }
122 
123 void main(){
124   _GLSLTK_main_2();
125   _GLSLTK_main_3();
126 }
   [Condition of type SIMPLE-ERROR]