61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
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module main
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import gx
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import gl
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import gg
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import glfw
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const (
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WIDTH = 1000
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HEIGHT = 1000
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SCALE = 50
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)
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struct Context {
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mut:
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gg *gg.GG
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}
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fn main() {
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glfw.init()
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mut ctx := &Context{gg: 0}
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window := glfw.create_window(glfw.WinCfg{
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title: 'graph builder'
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width: 1000
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height: 1000
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ptr: ctx
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})
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window.make_context_current()
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gg.init()
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ctx.gg = gg.new_context(gg.Cfg {
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width: 1000
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height: 1000
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use_ortho: true
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})
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for {
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gl.clear()
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gl.clear_color(255, 255, 255, 255)
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ctx.draw()
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window.swap_buffers()
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glfw.wait_events()
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}
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}
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fn (ctx mut Context) draw() {
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// x axis
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ctx.gg.draw_line(0, HEIGHT / 2, WIDTH, HEIGHT / 2)
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// y axis
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ctx.gg.draw_line(WIDTH / 2, 0, WIDTH / 2, HEIGHT)
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mut prev_x := f64(0)
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mut prev_y := f64(0)
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center := f64(WIDTH / 2)
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for x := f64(- 10); x <= f64(10); x += 0.01 {
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y := x * x * f64(SCALE)
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// gx.draw_line_c(center + prev_x, center+prev_y, center + int(x*float(10)), center+y, gx.BLACK)
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ctx.gg.draw_rect(int(center) + int(x * f64(SCALE)), int(center - y), 1, 1, gx.Black)
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// gx.draw_rect_f(center + (x * f64(SCALE)), center - y, 1, 1, gx.BLACK)
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prev_x = x
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prev_y = y
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}
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}
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