Function CompSpriteCreate

engine/gamesys/src/gamesys/components/comp_sprite.cpp:726–785

    }

    dmGameObject::CreateResult CompSpriteCreate(const dmGameObject::ComponentCreateParams& params)
    {
        SpriteWorld* sprite_world = (SpriteWorld*)params.m_World;

        if (sprite_world->m_Components.Full())
        {
            ShowFullBufferError("Sprite", "sprite.max_count", sprite_world->m_Components.Capacity());
            return dmGameObject::CREATE_RESULT_UNKNOWN_ERROR;
        }
        uint32_t index = sprite_world->m_Components.Alloc();
        SpriteComponent* component = &sprite_world->m_Components.Get(index);
        memset(component, 0, sizeof(SpriteComponent));

        component->m_Instance = params.m_Instance;
        component->m_Position = Vector3(params.m_Position);
        component->m_Rotation = params.m_Rotation;
        component->m_Scale = params.m_Scale;
        SpriteResource* resource = (SpriteResource*)params.m_Resource;
        component->m_Resource = resource;
        // narrow to 8 bits because I don't believe that sprite can have more than 255 textures
        component->m_NumTextures = (uint8_t)resource->m_NumTextures;
        component->m_Overrides = 0;

        dmMessage::ResetURL(&component->m_Listener);

        component->m_VertexCount = 0;
        component->m_VertexStride = 1;
        component->m_IndexCount = 0;
        component->m_ComponentIndex = params.m_ComponentIndex;
        component->m_Enabled = 1;
        component->m_FunctionRef = 0;
        component->m_ReHash = 1;
        component->m_AnimationReHash = 1;
        component->m_Slice9 = component->m_Resource->m_DDF->m_Slice9;
        component->m_UseSlice9 = sum(component->m_Slice9) != 0 &&
                component->m_Resource->m_DDF->m_SizeMode == dmGameSystemDDF::SpriteDesc::SIZE_MODE_MANUAL;

        component->m_DynamicVertexAttributeIndex = INVALID_DYNAMIC_ATTRIBUTE_INDEX;
        component->m_Size = Vector3(0.0f, 0.0f, 0.0f);
        component->m_AnimationID = 0;
        component->m_AnimationPlayback = dmGameSystemDDF::PLAYBACK_NONE;
        component->m_AnimationFrameCount = 1;
        component->m_PivotX = 0.5f;
        component->m_PivotY = 0.5f;

        if (component->m_Resource->m_DDF->m_SizeMode == dmGameSystemDDF::SpriteDesc::SIZE_MODE_MANUAL || component->m_NumTextures == 0)
        {
            component->m_Size[0] = component->m_Resource->m_DDF->m_Size.getX();
            component->m_Size[1] = component->m_Resource->m_DDF->m_Size.getY();
        }

        if (component->m_NumTextures > 0)
        {
            PlayAnimation(component, resource->m_DefaultAnimation,
                    component->m_Resource->m_DDF->m_Offset, component->m_Resource->m_DDF->m_PlaybackRate);
        }

        *params.m_UserData = (uintptr_t)index;