renderLine16_Blend(), renderLine16_Decal(), renderLine32_Blend(), renderLine32_Decal() clipLine() frand() drawRectangle() and drawLine() remove unused private fields
renderLine16_Blend(), renderLine16_Decal(), renderLine32_Blend(), renderLine32_Decal() clipLine() frand() drawRectangle() and drawLine() remove unused private fields