(ren *RenderComponent, space *SpaceComponent)
| 150 | } |
| 151 | |
| 152 | func (l *textShader) updateBuffer(ren *RenderComponent, space *SpaceComponent) { |
| 153 | txt, ok := ren.Drawable.(Text) |
| 154 | if !ok { |
| 155 | unsupportedType(ren.Drawable) |
| 156 | return |
| 157 | } |
| 158 | |
| 159 | if len(ren.BufferContent) < 20*len(txt.Text) { |
| 160 | ren.BufferContent = make([]float32, 20*len(txt.Text)) // TODO: update this to actual value? |
| 161 | } |
| 162 | // Reset buffer so artifacts don't occur when txt.Text changes |
| 163 | for i := 0; i < len(ren.BufferContent); i++ { |
| 164 | ren.BufferContent[i] = 0 |
| 165 | } |
| 166 | if changed := l.generateBufferContent(ren, space, ren.BufferContent); !changed { |
| 167 | return |
| 168 | } |
| 169 | |
| 170 | if ren.Buffer == nil { |
| 171 | ren.Buffer = engo.Gl.CreateBuffer() |
| 172 | } |
| 173 | engo.Gl.BindBuffer(engo.Gl.ARRAY_BUFFER, ren.Buffer) |
| 174 | engo.Gl.BufferData(engo.Gl.ARRAY_BUFFER, ren.BufferContent, engo.Gl.STATIC_DRAW) |
| 175 | } |
| 176 | |
| 177 | func (l *textShader) generateBufferContent(ren *RenderComponent, space *SpaceComponent, buffer []float32) bool { |
| 178 | var changed bool |
no test coverage detected