precision highp float;
precision highp int;

in vec2 vUv;
in float vIsCarryingFood;
in float vScentFactor;
in float vIsCellCleared;
in float vDepositMaterialId;

out vec4 FragColor;

void main()	{
    // encode deposit material ID in alpha: divide by 255 to fit in UnsignedByte channel
    FragColor = vec4(vIsCarryingFood * vScentFactor, (1. - vIsCarryingFood) * vScentFactor, vIsCellCleared, vDepositMaterialId / 255.);
}