var brush = (function(){ var brush = new Matrix (5, 5, function(x,y){ var lex = new Lex (x,y) lex.build() return lex }) brush.modified = false brush.mask = blit.circle brush.generate = function(){ brush.fill(brush) brush.mask(brush) } brush.bind = function(){ var last_point = [0,0] var dragging = false var erasing = false brush.forEach(function(lex, x, y){ if (lex.bound) return lex.bound = true var point = [x,y] lex.span.addEventListener('contextmenu', function(e){ e.preventDefault() }) lex.span.addEventListener('mousedown', function(e){ e.preventDefault() current_canvas = brush brush.modified = true dragging = true erasing = (e.which == "3" || e.ctrlKey) if (erasing) { lex.clear() } else { fillColor = brush.bg lex.assign(brush) } brush.focus(x, y) }) lex.span.addEventListener('mousemove', function(e){ e.preventDefault() if (! dragging) { return } erasing = (e.which == "3" || e.ctrlKey) if (erasing) { lex.clear() } else { lex.assign(brush) } brush.focus(x, y) }) }) window.addEventListener('mouseup', function(e){ dragging = erasing = false }) } brush.resize = function(w, h){ w = this.w = clamp(w, this.min, this.max) h = this.h = clamp(h, this.min, this.max) brush.rebuild() controls.brush_w.char = "" + w controls.brush_w.build() controls.brush_h.char = "" + h controls.brush_h.build() } brush.size_add = function(w, h){ brush.resize(brush.w + w, brush.h + h) } brush.expand = function(i){ brush.size_add(i, i) } brush.contract = function(i){ brush.size_add(-i, -i) } brush.load = function(lex){ brush.char = lex.char brush.fg = lex.fg brush.bg = lex.bg brush.opacity = 1 } brush.min = 1 brush.max = 100 brush.char = " " brush.fg = 0 brush.bg = 1 brush.opacity = 1 brush.draw_fg = true brush.draw_bg = true brush.draw_char = true return brush })()