Synthasmagoria/transformation_visualizer
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Synthasmagoria 2026-08-25 09:34:26 +02:00
commit d5793c836f
4 changed files with 73 additions and 61 deletions
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12
grid.odin
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@ -9,15 +9,19 @@ Grid :: struct {
world_position, world_size, offset: v2,
}
draw_grid :: proc(grid: Grid, text_draw, text_clip: rect2) {
zoom_amount := grid_get_zoom_amount(grid.zoom)
world_to_grid_matrix := (
grid_world_to_grid_matrix :: proc(zoom, offset: v2) -> mat3 {
zoom_amount := linalg.pow(v2{2.0, 2.0}, zoom) - 1.0
return (
mat3 {
1, 0, 0,
0, 1, 0,
grid.offset.x, grid.offset.y, 1,
offset.x, offset.y, 1,
} *
linalg.matrix3_scale(v3{**zoom_amount, 1.0}))
}
draw_grid :: proc(grid: Grid, text_draw, text_clip: rect2) {
world_to_grid_matrix := grid_world_to_grid_matrix(grid.zoom, grid.offset)
grid_to_world_matrix := linalg.inverse(world_to_grid_matrix)
grid_world_br := grid.world_position + grid.world_size
grid_color := rl.Color{64, 64, 64, 255}