#version 330 core

uniform sampler2DRect colorMap;

uniform vec3 camera;
uniform vec2 worldSize;
uniform vec2 screenSize;

out vec4 outColor;

void main()
{
    vec2 halfScreen = screenSize/2;
    vec2 screenPos = gl_FragCoord.xy + camera.xy;
    vec2 texCoord = (screenPos-halfScreen)/200;
    vec3 texColor = texelFetch(colorMap, ivec2(screenPos*camera.z)).xyz;
    outColor = vec4(texColor, 1.0);
}