Implemented textures

assets/shaders/shader.vert

@@ -1,10 +1,14 @@
 #version 150 core
 
-in vec2 position;
-in vec3 color;
-out vec3 _color;
+in vec2 inPos;
+in vec3 inColor;
+in vec2 inCoord;
+
+out vec3 color;
+out vec2 coord;
 
 void main() {
-    _color = color;
-    gl_Position = vec4(position, 0.0, 1.0);
+    color = inColor;
+    coord = inCoord;
+    gl_Position = vec4(inPos, 0.0, 1.0);
 }