// Draw a grid centered at (0, 0, 0) static void DrawGrid(int slices, float spacing) { int halfSlices = slices / 2; rlBegin(RL_LINES); for(int i = -halfSlices; i <= halfSlices; i++) { if (i == 0) { rlColor3f(0.5f, 0.5f, 0.5f); rlColor3f(0.5f, 0.5f, 0.5f); rlColor3f(0.5f, 0.5f, 0.5f); rlColor3f(0.5f, 0.5f, 0.5f); } else { rlColor3f(0.75f, 0.75f, 0.75f); rlColor3f(0.75f, 0.75f, 0.75f); rlColor3f(0.75f, 0.75f, 0.75f); rlColor3f(0.75f, 0.75f, 0.75f); } rlVertex3f((float)i*spacing, 0.0f, (float)-halfSlices*spacing); rlVertex3f((float)i*spacing, 0.0f, (float)halfSlices*spacing); rlVertex3f((float)-halfSlices*spacing, 0.0f, (float)i*spacing); rlVertex3f((float)halfSlices*spacing, 0.0f, (float)i*spacing); } rlEnd(); }
// Draw cube wires void DrawCubeWires(Vector3 position, float width, float height, float length, Color color) { float x = 0.0f; float y = 0.0f; float z = 0.0f; rlPushMatrix(); rlTranslatef(position.x, position.y, position.z); //rlRotatef(45, 0, 1, 0); rlBegin(RL_LINES); rlColor4ub(color.r, color.g, color.b, color.a); // Front Face ----------------------------------------------------- // Bottom Line rlVertex3f(x-width/2, y-height/2, z+length/2); // Bottom Left rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Right // Left Line rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Right rlVertex3f(x+width/2, y+height/2, z+length/2); // Top Right // Top Line rlVertex3f(x+width/2, y+height/2, z+length/2); // Top Right rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left // Right Line rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left rlVertex3f(x-width/2, y-height/2, z+length/2); // Bottom Left // Back Face ------------------------------------------------------ // Bottom Line rlVertex3f(x-width/2, y-height/2, z-length/2); // Bottom Left rlVertex3f(x+width/2, y-height/2, z-length/2); // Bottom Right // Left Line rlVertex3f(x+width/2, y-height/2, z-length/2); // Bottom Right rlVertex3f(x+width/2, y+height/2, z-length/2); // Top Right // Top Line rlVertex3f(x+width/2, y+height/2, z-length/2); // Top Right rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left // Right Line rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left rlVertex3f(x-width/2, y-height/2, z-length/2); // Bottom Left // Top Face ------------------------------------------------------- // Left Line rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left Front rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left Back // Right Line rlVertex3f(x+width/2, y+height/2, z+length/2); // Top Right Front rlVertex3f(x+width/2, y+height/2, z-length/2); // Top Right Back // Bottom Face --------------------------------------------------- // Left Line rlVertex3f(x-width/2, y-height/2, z+length/2); // Top Left Front rlVertex3f(x-width/2, y-height/2, z-length/2); // Top Left Back // Right Line rlVertex3f(x+width/2, y-height/2, z+length/2); // Top Right Front rlVertex3f(x+width/2, y-height/2, z-length/2); // Top Right Back rlEnd(); rlPopMatrix(); }
// Draw cube // NOTE: Cube position is the center position void DrawCube(Vector3 position, float width, float height, float length, Color color) { float x = 0.0f; float y = 0.0f; float z = 0.0f; rlPushMatrix(); // NOTE: Be careful! Function order matters (rotate -> scale -> translate) rlTranslatef(position.x, position.y, position.z); //rlScalef(2.0f, 2.0f, 2.0f); //rlRotatef(45, 0, 1, 0); rlBegin(RL_TRIANGLES); rlColor4ub(color.r, color.g, color.b, color.a); // Front Face ----------------------------------------------------- rlVertex3f(x-width/2, y-height/2, z+length/2); // Bottom Left rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Right rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left rlVertex3f(x+width/2, y+height/2, z+length/2); // Top Right rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Right // Back Face ------------------------------------------------------ rlVertex3f(x-width/2, y-height/2, z-length/2); // Bottom Left rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left rlVertex3f(x+width/2, y-height/2, z-length/2); // Bottom Right rlVertex3f(x+width/2, y+height/2, z-length/2); // Top Right rlVertex3f(x+width/2, y-height/2, z-length/2); // Bottom Right rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left // Top Face ------------------------------------------------------- rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left rlVertex3f(x-width/2, y+height/2, z+length/2); // Bottom Left rlVertex3f(x+width/2, y+height/2, z+length/2); // Bottom Right rlVertex3f(x+width/2, y+height/2, z-length/2); // Top Right rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Left rlVertex3f(x+width/2, y+height/2, z+length/2); // Bottom Right // Bottom Face ---------------------------------------------------- rlVertex3f(x-width/2, y-height/2, z-length/2); // Top Left rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Right rlVertex3f(x-width/2, y-height/2, z+length/2); // Bottom Left rlVertex3f(x+width/2, y-height/2, z-length/2); // Top Right rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Right rlVertex3f(x-width/2, y-height/2, z-length/2); // Top Left // Right face ----------------------------------------------------- rlVertex3f(x+width/2, y-height/2, z-length/2); // Bottom Right rlVertex3f(x+width/2, y+height/2, z-length/2); // Top Right rlVertex3f(x+width/2, y+height/2, z+length/2); // Top Left rlVertex3f(x+width/2, y-height/2, z+length/2); // Bottom Left rlVertex3f(x+width/2, y-height/2, z-length/2); // Bottom Right rlVertex3f(x+width/2, y+height/2, z+length/2); // Top Left // Left Face ------------------------------------------------------ rlVertex3f(x-width/2, y-height/2, z-length/2); // Bottom Right rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left rlVertex3f(x-width/2, y+height/2, z-length/2); // Top Right rlVertex3f(x-width/2, y-height/2, z+length/2); // Bottom Left rlVertex3f(x-width/2, y+height/2, z+length/2); // Top Left rlVertex3f(x-width/2, y-height/2, z-length/2); // Bottom Right rlEnd(); rlPopMatrix(); }
void glVertex3f(GLfloat x, GLfloat y, GLfloat z) { if (state.list.active) { rlVertex3f(state.list.active, x, y, z); } }