layout(location = ATTRIBUTE_LOCATION_POSITION) in vec3 a_Position;
layout(location = ATTRIBUTE_LOCATION_COLOR) in vec4 a_Color;
layout(location =  ATTRIBUTE_LOCATION_POS) in vec3 a_Pos;

layout(std140) uniform commonUniforms {
    vec2 u_radius;
    float u_opacity;
    float u_coverage;
    float u_angle;
};

out vec4 v_color;

#pragma include "projection"
#pragma include "project"
#pragma include "picking"

void main() {
  v_color = a_Color;
  v_color.a *= u_opacity;

  mat2 rotationMatrix = mat2(cos(u_angle), sin(u_angle), -sin(u_angle), cos(u_angle));
  vec2 offset = a_Position.xy * u_radius * rotationMatrix * u_coverage;

  vec2 lnglat = unProjectFlat(a_Pos.xy + offset);
  vec4 project_pos = project_position(vec4(lnglat, 0, 1.0));
  gl_Position = project_common_position_to_clipspace(project_pos);

  setPickingColor(a_PickingColor);
}