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added zoom/drag controls, control panel minimizer

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This commit is contained in:
MaxRobinsonTheGreat
2020-07-23 15:27:44 -06:00
parent 8fb471025e
commit b0af739747
7 changed files with 131 additions and 25 deletions
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44
src/Controllers/EnvironmentController.js
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@@ -8,8 +8,42 @@ const Cell = require("../Organism/Cell/Cell");
class EnvironmentController extends CanvasController{
constructor(env, canvas) {
super(env, canvas);
this.mode = Modes.None;
this.mode = Modes.Drag;
this.org_to_clone = null;
this.defineZoomControls();
this.prev_x;
this.prev_y;
this.scale = 1;
}
defineZoomControls() {
var scale = 1;
var zoom_speed = 0.5;
const el = document.querySelector('#env-canvas');
el.onwheel = function zoom(event) {
event.preventDefault();
var sign = -1*Math.sign(event.deltaY);
// Restrict scale
scale = Math.max(0.5, scale+(sign*zoom_speed));
// Apply scale transform
el.style.transform = `scale(${scale})`;
this.scale = scale;
}.bind(this);
}
resetView() {
$('#env-canvas').css('transform', 'scale(1)');
$('#env-canvas').css('top', '0px');
$('#env-canvas').css('left', '0px');
this.scale = 1;
}
updateMouseLocation(offsetX, offsetY){
this.prev_x = this.mouse_x;
this.prev_y = this.mouse_y;
super.updateMouseLocation(offsetX, offsetY);
}
mouseMove() {
@@ -68,6 +102,14 @@ class EnvironmentController extends CanvasController{
}
}
break;
case Modes.Drag:
var cur_top = parseInt($('#env-canvas').css('top'), 10);
var cur_left = parseInt($('#env-canvas').css('left'), 10);
var new_top = (cur_top + (this.mouse_y - this.prev_y)*this.scale);
var new_left = (cur_left + (this.mouse_x - this.prev_x)*this.scale);
$('#env-canvas').css('top', new_top+'px');
$('#env-canvas').css('left', new_left+'px');
break;
}
}
}