76 lines
1.4 KiB
V
76 lines
1.4 KiB
V
import sokol
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import sokol.sapp
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import sokol.gfx
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import sokol.sgl
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struct AppState {
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pass_action C.sg_pass_action
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}
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const (
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used_import = sokol.used_import
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)
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fn main() {
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state := &AppState{
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pass_action: gfx.create_clear_pass(0.1, 0.1, 0.1, 1.0)
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}
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title := 'Sokol Drawing Template'
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desc := C.sapp_desc{
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user_data: state
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init_userdata_cb: init
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frame_userdata_cb: frame
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window_title: title.str
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html5_canvas_name: title.str
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}
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sapp.run(&desc)
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}
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fn init(user_data voidptr) {
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desc := sapp.create_desc() // C.sg_desc{
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gfx.setup(&desc)
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sgl_desc := C.sgl_desc_t{}
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sgl.setup(&sgl_desc)
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}
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fn frame(user_data voidptr) {
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// println('frame')
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state := &AppState(user_data)
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draw()
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gfx.begin_default_pass(&state.pass_action, sapp.width(), sapp.height())
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sgl.draw()
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gfx.end_pass()
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gfx.commit()
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}
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fn draw() {
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// first, reset and setup ortho projection
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sgl.defaults()
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sgl.matrix_mode_projection()
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sgl.ortho(0.0, f32(sapp.width()), f32(sapp.height()), 0.0, -1.0, 1.0)
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sgl.c4b(255, 0, 0, 128)
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draw_hollow_rect(10, 10, 100, 30)
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sgl.c4b(25, 150, 0, 128)
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draw_filled_rect(10, 150, 80, 40)
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// line(0, 0, 500, 500)
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}
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fn draw_hollow_rect(x f32, y f32, w f32, h f32) {
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sgl.begin_line_strip()
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sgl.v2f(x, y)
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sgl.v2f(x + w, y)
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sgl.v2f(x + w, y + h)
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sgl.v2f(x, y + h)
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sgl.v2f(x, y)
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sgl.end()
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}
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fn draw_filled_rect(x f32, y f32, w f32, h f32) {
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sgl.begin_quads()
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sgl.v2f(x, y)
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sgl.v2f(x + w, y)
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sgl.v2f(x + w, y + h)
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sgl.v2f(x, y + h)
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sgl.end()
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}
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