diff options
Diffstat (limited to 'pugl.js')
| -rw-r--r-- | pugl.js | 41 |
1 files changed, 33 insertions, 8 deletions
@@ -2,11 +2,9 @@ /* TODO: +- reset button +- guide - about dialog -- pause -- settings: - - enable/disable auto-update - - resolution */ const APP_ID = 'dh3YgVZQdX1Q'; @@ -34,11 +32,12 @@ let widgets_container; let code_input; let error_element; let parsed_widgets; +let paused = false; const mouse_pos_ndc = Object.preventExtensions({ x: 0, y: 0 }); -let render_width = 1080, - render_height = 1080; +let render_width = 1080; +let render_height = 1080; const GLSL_FLOAT_TYPES = ['float', 'vec2', 'vec3', 'vec4']; const GLSL_FLOAT_TYPE_PAIRS = GLSL_FLOAT_TYPES.flatMap((x) => GLSL_FLOAT_TYPES.map((y) => [x, y]), @@ -910,7 +909,7 @@ float worley(vec3 p, vec3 freq) { ]; function auto_update_enabled() { - return true; + return document.getElementById('auto-update').checked; } function is_input(element) { @@ -2367,6 +2366,30 @@ function startup() { import_widgets(code_input.value); }); + const pause_element = document.getElementById('pause'); + const play_element = document.getElementById('play'); + const step_element = document.getElementById('step'); + function update_step_buttons() { + play_element.disabled = !paused; + pause_element.disabled = paused; + step_element.disabled = !paused; + } + + // ideally we would just put the initial state into the HTML + // but fucking firefox https://bugzilla.mozilla.org/show_bug.cgi?id=654072 + update_step_buttons(); + pause_element.addEventListener('click', () => { + paused = true; + update_step_buttons(); + }); + play_element.addEventListener('click', () => { + paused = false; + update_step_buttons(); + }); + step_element.addEventListener('click', () => { + perform_step(); + }); + gl = canvas.getContext('webgl2'); if (gl === null) { // support for very-old-but-not-ancient browsers @@ -2518,7 +2541,9 @@ function frame(time) { canvas.style.left = canvas_x + 'px'; canvas.style.top = canvas_y + 'px'; - perform_step(); + if (!paused) { + perform_step(); + } gl.bindFramebuffer(gl.FRAMEBUFFER, null); gl.viewport(0, 0, viewport_width, viewport_height); |