#version 300 es

precision mediump float;

in vec4 color;
in vec2 texCoord;
in float textureIndex;

uniform sampler2D textures[8];

out vec4 fragColor;

void main() {
	fragColor = vec4(0, 0, 0, 0);
	fragColor += texture(textures[0], texCoord) * (step(-0.5, textureIndex) - step(0.5, textureIndex));
	fragColor += texture(textures[1], texCoord) * (step(0.5, textureIndex) - step(1.5, textureIndex));
	fragColor += texture(textures[2], texCoord) * (step(1.5, textureIndex) - step(2.5, textureIndex));
	fragColor += texture(textures[3], texCoord) * (step(2.5, textureIndex) - step(3.5, textureIndex));
	fragColor += texture(textures[4], texCoord) * (step(3.5, textureIndex) - step(4.5, textureIndex));
	fragColor += texture(textures[5], texCoord) * (step(4.5, textureIndex) - step(5.5, textureIndex));
	fragColor += texture(textures[6], texCoord) * (step(5.5, textureIndex) - step(6.5, textureIndex));
	fragColor += texture(textures[7], texCoord) * (step(6.5, textureIndex) - step(7.5, textureIndex));
	fragColor *= color;
}