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eco2d/code/game/source/editors/texed.c

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#define ZPL_NO_WINDOWS_H
#include "zpl.h"
#include "editors/texed.h"
#include "raylib.h"
#include "utils/raylib_helpers.h"
#include "cwpack/cwpack.h"
#define RAYGUI_IMPLEMENTATION
#define RAYGUI_SUPPORT_ICONS
#include "raygui.h"
#define GUI_FILE_DIALOG_IMPLEMENTATION
#include "gui_file_dialog.h"
static uint16_t screenWidth = 1280;
static uint16_t screenHeight = 720;
static float zoom = 4.0f;
#define TD_DEFAULT_IMG_WIDTH 64
#define TD_DEFAULT_IMG_HEIGHT 64
#define TD_UI_PADDING 5.0f
#define TD_UI_PREVIEW_BORDER 4.0f
typedef enum {
TPARAM_FLOAT,
TPARAM_INT,
TPARAM_COLOR,
TPARAM_STRING,
TPARAM_FORCE_UINT8 = UINT8_MAX
} td_param_kind;
typedef struct {
td_param_kind kind;
char const *name;
char str[1000];
bool edit_mode;
union {
float flt;
int u32;
Color color;
char copy[4];
};
} td_param;
typedef enum {
TOP_CLEAR,
TOP_DRAW_RECT,
TOP_DRAW_LINE,
TOP_FORCE_UINT8 = UINT8_MAX
} td_op_kind;
typedef struct {
td_op_kind kind;
char const *name;
bool is_hidden;
uint8_t num_params;
td_param *params;
} td_op;
#define OP(n) .kind = n, .name = #n
typedef struct {
char *filepath;
Image img;
Texture2D tex;
GuiFileDialogState fileDialog;
td_op *ops; //< zpl_array
int selected_op;
} td_ctx;
static td_ctx ctx = {0};
static char filename[200];
static td_op default_ops[] = {
{
OP(TOP_CLEAR),
.num_params = 1,
.params = (td_param[]) {
{
.kind = TPARAM_COLOR,
.name = "color",
.str = "ffffffff"
}
}
},
{
OP(TOP_DRAW_RECT),
.num_params = 5,
.params = (td_param[]) {
{
.kind = TPARAM_INT,
.name = "x",
.str = "0"
},
{
.kind = TPARAM_INT,
.name = "y",
.str = "0"
},
{
.kind = TPARAM_INT,
.name = "w",
.str = "10"
},
{
.kind = TPARAM_INT,
.name = "h",
.str = "10"
},
{
.kind = TPARAM_COLOR,
.name = "color",
.str = "ff0000ff"
},
}
}
};
// NOTE(zaklaus): IMPORTANT !! keep these in sync
static char const *add_op_list = "CLEAR SOLID;DRAW RECTANGLE;PLOT LINE;DITHER";
#define DEF_OPS_LEN (int)(sizeof(default_ops) / (sizeof(default_ops[0])))
void texed_new(int32_t w, int32_t h);
void texed_destroy(void);
void texed_load(void);
void texed_save(void);
void texed_repaint_preview(void);
void texed_process_ops(void);
void texed_process_params(void);
void texed_add_op(int idx);
void texed_rem_op(int idx);
void texed_swp_op(int idx, int idx2);
void texed_draw_oplist_pane(zpl_aabb2 r);
void texed_draw_props_pane(zpl_aabb2 r);
void texed_draw_topbar(zpl_aabb2 r);
static inline
void DrawAABB(zpl_aabb2 rect, Color color) {
DrawRectangleEco(rect.min.x, rect.min.y,
rect.max.x-rect.min.x,
rect.max.y-rect.min.y,
color);
}
static inline
Rectangle aabb2_ray(zpl_aabb2 r);
void texed_run(void) {
InitWindow(screenWidth, screenHeight, "eco2d - texture editor");
SetTargetFPS(60);
texed_new(TD_DEFAULT_IMG_WIDTH, TD_DEFAULT_IMG_HEIGHT);
zpl_aabb2 screen = {
.min = (zpl_vec2) {.x = 0.0f, .y = 0.0f},
.max = (zpl_vec2) {.x = screenWidth, .y = screenHeight},
};
zpl_aabb2 topbar = zpl_aabb2_cut_top(&screen, 25.0f);
zpl_aabb2 oplist_pane = zpl_aabb2_cut_right(&screen, screenWidth / 2.0f);
zpl_aabb2 preview_window = zpl_aabb2_cut_top(&screen, (screen.max.y-screen.min.y) / 2.0f);
zpl_aabb2 property_pane = screen;
// NOTE(zaklaus): contract all panes for a clean UI separation
oplist_pane = zpl_aabb2_contract(&oplist_pane, TD_UI_PADDING);
preview_window = zpl_aabb2_contract(&preview_window, TD_UI_PADDING);
property_pane = zpl_aabb2_contract(&property_pane, TD_UI_PADDING);
Rectangle preview_rect = aabb2_ray(preview_window);
Image checkerboard = GenImageChecked(preview_rect.width, preview_rect.height, 16, 16, BLACK, ColorAlpha(GRAY, 0.2f));
Texture2D checker_tex = LoadTextureFromImage(checkerboard);
UnloadImage(checkerboard);
while (!WindowShouldClose()) {
BeginDrawing();
ClearBackground(GetColor(0x222034));
{
if (ctx.fileDialog.fileDialogActive) GuiLock();
DrawTextureEx(checker_tex, (Vector2){ preview_window.min.x, preview_window.min.y}, 0.0f, 1.0f, WHITE);
DrawTextureEx(ctx.tex, (Vector2){ preview_window.min.x, preview_window.min.y}, 0.0f, zoom, WHITE);
DrawAABB(topbar, RAYWHITE);
DrawAABB(property_pane, GetColor(0x422060));
DrawAABB(oplist_pane, GetColor(0x425060));
texed_draw_topbar(topbar);
texed_draw_props_pane(property_pane);
texed_draw_oplist_pane(oplist_pane);
if (ctx.fileDialog.fileDialogActive) GuiUnlock();
GuiFileDialog(&ctx.fileDialog);
}
EndDrawing();
}
UnloadTexture(checker_tex);
texed_destroy();
}
void texed_new(int32_t w, int32_t h) {
ctx.img = GenImageColor(w, h, WHITE);
ctx.filepath = NULL;
ctx.selected_op = 0;
zpl_array_init(ctx.ops, zpl_heap());
texed_repaint_preview();
ctx.fileDialog = InitGuiFileDialog(420, 310, zpl_bprintf("%s/art", GetWorkingDirectory()), false);
}
void texed_destroy(void) {
UnloadTexture(ctx.tex);
UnloadImage(ctx.img);
zpl_array_free(ctx.ops);
}
void texed_repaint_preview(void) {
UnloadTexture(ctx.tex);
ImageClearBackground(&ctx.img, ColorAlpha(BLACK, 0.0f));
texed_process_params();
texed_process_ops();
ctx.tex = LoadTextureFromImage(ctx.img);
}
void texed_add_op(int idx) {
assert(idx >= 0 && idx < DEF_OPS_LEN);
td_op *dop = &default_ops[idx];
td_op op = {
.kind = dop->kind,
.name = dop->name,
.num_params = dop->num_params,
.params = (td_param*)zpl_malloc(sizeof(td_param)*dop->num_params)
};
zpl_memcopy(op.params, dop->params, sizeof(td_param)*dop->num_params);
zpl_array_append(ctx.ops, op);
ctx.selected_op = zpl_array_count(ctx.ops)-1;
texed_repaint_preview();
}
void texed_rem_op(int idx) {
assert(idx >= 0 && idx < (int)zpl_array_count(ctx.ops));
zpl_mfree(ctx.ops[idx].params);
zpl_array_remove_at(ctx.ops, idx);
if (idx == ctx.selected_op) {
if (idx > 0) ctx.selected_op -= 1;
}
texed_repaint_preview();
}
static bool is_add_op_dropbox_open = false;
static int add_op_dropbox_selected = 0;
void texed_draw_oplist_pane(zpl_aabb2 r) {
zpl_aabb2 oplist_header = zpl_aabb2_cut_top(&r, 40.0f);
zpl_aabb2 add_op_r = zpl_aabb2_cut_left(&oplist_header, 120.0f);
if (!is_add_op_dropbox_open && GuiButton(aabb2_ray(add_op_r), "ADD OPERATION")) {
is_add_op_dropbox_open = true;
}
GuiSetState(ctx.filepath ? GUI_STATE_NORMAL : GUI_STATE_DISABLED);
zpl_aabb2 export_code_r = zpl_aabb2_cut_left(&oplist_header, 120.0f);
if (GuiButton(aabb2_ray(export_code_r), "BUILD TEXTURE")) {
zpl_printf("Building texture %s.h ...\n", ctx.filepath);
ExportImageAsCode(ctx.img, zpl_bprintf("art/gen/%s.h", ctx.filepath));
}
zpl_aabb2 export_img_r = zpl_aabb2_cut_left(&oplist_header, 120.0f);
if (GuiButton(aabb2_ray(export_img_r), "EXPORT AS IMAGE")) {
zpl_printf("Exporting texture %s.png ...\n", ctx.filepath);
ExportImage(ctx.img, zpl_bprintf("art/gen/%s.png", ctx.filepath));
}
GuiSetState(GUI_STATE_NORMAL);
// NOTE(zaklaus): operator list
for (int i = 0; i < zpl_array_count(ctx.ops); i += 1) {
zpl_aabb2 op_item_r = zpl_aabb2_cut_top(&r, 45.0f);
zpl_aabb2_cut_top(&op_item_r, 2.5f);
zpl_aabb2_cut_bottom(&op_item_r, 2.5f);
Rectangle list_item = aabb2_ray(op_item_r);
DrawRectangleRec(list_item, ColorAlpha(ctx.selected_op == i ? GREEN : RED, 0.4f));
zpl_aabb2 swap_r = zpl_aabb2_cut_left(&op_item_r, 50.0f);
Rectangle list_text = aabb2_ray(op_item_r);
zpl_aabb2_cut_right(&swap_r, 5.0f);
zpl_aabb2 swap_top = zpl_aabb2_cut_top(&swap_r, 20.0f);
zpl_aabb2 swap_bottom = swap_r;
if (i > 0 && GuiButton(aabb2_ray(swap_top), "UP")) {
texed_swp_op(i, i-1);
}
if (i+1 < zpl_array_count(ctx.ops) && GuiButton(aabb2_ray(swap_bottom), "DOWN")) {
texed_swp_op(i, i+1);
}
zpl_aabb2 remove_r = zpl_aabb2_cut_right(&op_item_r, 60.0f);
if (GuiButton(aabb2_ray(remove_r), "REMOVE")) {
texed_rem_op(i);
}
zpl_aabb2 hidden_r = zpl_aabb2_cut_right(&op_item_r, 60.0f);
if (GuiButton(aabb2_ray(hidden_r), ctx.ops[i].is_hidden ? "SHOW" : "HIDE")) {
ctx.ops[i].is_hidden = !ctx.ops[i].is_hidden;
texed_repaint_preview();
}
if (ctx.selected_op != i) {
zpl_aabb2 select_r = zpl_aabb2_cut_right(&op_item_r, 60.0f);
if (GuiButton(aabb2_ray(select_r), "SELECT")) {
ctx.selected_op = i;
}
}
GuiDrawText(ctx.ops[i].name, GetTextBounds(LABEL, list_text), GuiGetStyle(LABEL, TEXT_ALIGNMENT), Fade(RAYWHITE, guiAlpha));
}
if (is_add_op_dropbox_open && GuiDropdownBox(aabb2_ray(add_op_r), add_op_list, &add_op_dropbox_selected, true)) {
is_add_op_dropbox_open = false;
texed_add_op(add_op_dropbox_selected);
}
}
void texed_draw_props_pane(zpl_aabb2 r) {
if (zpl_array_count(ctx.ops) == 0) {
GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER);
GuiDrawText("No operation is selected!", GetTextBounds(LABEL, aabb2_ray(r)), GuiGetStyle(LABEL, TEXT_ALIGNMENT), Fade(RAYWHITE, guiAlpha));
GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT);
return;
}
td_op *op = &ctx.ops[ctx.selected_op];
Rectangle dims = aabb2_ray(r);
zpl_aabb2 column_1_r = zpl_aabb2_cut_left(&r, dims.width/2.0f);
zpl_aabb2 column_2_r = r;
float prop_height = 40.0f;
int prop_column_treshold = (int)zpl_floor(dims.height / prop_height);
for (int i = 0; i < op->num_params; i += 1) {
td_param *p = &op->params[i];
zpl_aabb2 *c = (i >= prop_column_treshold) ? &column_2_r : &column_1_r;
zpl_aabb2 item = zpl_aabb2_cut_top(c, prop_height);
zpl_aabb2 label_r = zpl_aabb2_cut_left(&item, dims.width/4.0f);
zpl_aabb2 tbox_r = item;
GuiDrawText(zpl_bprintf("%s: ", p->name ? p->name : "prop"), GetTextBounds(LABEL, aabb2_ray(label_r)), GuiGetStyle(LABEL, TEXT_ALIGNMENT), Fade(RAYWHITE, guiAlpha));
if (GuiTextBox(aabb2_ray(tbox_r), p->str, 64, p->edit_mode)) {
p->edit_mode = !p->edit_mode;
if (!p->edit_mode)
texed_repaint_preview();
}
}
}
static inline
Rectangle aabb2_ray(zpl_aabb2 r) {
return (Rectangle) {
.x = r.min.x,
.y = r.min.y,
.width = r.max.x-r.min.x,
.height = r.max.y-r.min.y
};
}
void texed_process_ops(void) {
for (int i = 0; i < zpl_array_count(ctx.ops); i += 1) {
td_op *op = &ctx.ops[i];
if (op->is_hidden) continue;
zpl_printf("processing op: %s ... \n", op->name);
switch (op->kind) {
case TOP_CLEAR: {
ImageClearBackground(&ctx.img, op->params[0].color);
}break;
case TOP_DRAW_RECT: {
ImageDrawRectangle(&ctx.img,
op->params[0].u32,
op->params[1].u32,
op->params[2].u32,
op->params[3].u32,
op->params[4].color);
}break;
default: {
zpl_printf("%s\n", "unsupported op!");
}break;
}
}
}
void texed_process_params(void) {
for (int i = 0; i < zpl_array_count(ctx.ops); i += 1) {
td_op *op = &ctx.ops[i];
if (op->is_hidden) continue;
for (int j = 0; j < op->num_params; j += 1) {
td_param *p = &op->params[j];
switch (p->kind) {
case TPARAM_FLOAT: {
p->flt = (float)zpl_str_to_f64(p->str, NULL);
}break;
case TPARAM_INT: {
p->u32 = (int)zpl_str_to_i64(p->str, NULL, 10);
}break;
case TPARAM_COLOR: {
uint32_t color = (uint32_t)zpl_str_to_u64(p->str, NULL, 16);
p->color = GetColor(color);
}break;
case TPARAM_STRING: {
// NOTE(zaklaus): no-op
}break;
default: {
zpl_printf("%s\n", "unsupported param!");
}break;
}
}
}
}
void texed_draw_topbar(zpl_aabb2 r) {
zpl_aabb2 zoom_ctrl_r = zpl_aabb2_cut_left(&r, 150.0f);
zoom = GuiSlider(aabb2_ray(zoom_ctrl_r), "zoom: ", zpl_bprintf("%.02f x", zoom), zoom, 1.0f, 16.0f);
zpl_aabb2_cut_left(&r, 100.0f);
zpl_aabb2 new_prj_r = zpl_aabb2_cut_left(&r, 60.0f);
if (GuiButton(aabb2_ray(new_prj_r), "NEW")) {
texed_destroy();
texed_new(TD_DEFAULT_IMG_WIDTH, TD_DEFAULT_IMG_HEIGHT); // TODO(zaklaus): show res panel
}
zpl_aabb2 load_prj_r = zpl_aabb2_cut_left(&r, 60.0f);
static bool load_pending = false;
if (GuiButton(aabb2_ray(load_prj_r), "LOAD")) {
load_pending = true;
ctx.fileDialog.fileDialogActive = true;
}
if (ctx.fileDialog.SelectFilePressed && load_pending) {
ctx.fileDialog.SelectFilePressed = false;
if (IsFileExtension(ctx.fileDialog.fileNameText, ".ecotex")) {
zpl_strcpy(filename, ctx.fileDialog.fileNameText);
ctx.filepath = filename;
load_pending = false;
texed_load();
} else {
ctx.fileDialog.fileDialogActive = true;
}
}
zpl_aabb2 save_prj_r = zpl_aabb2_cut_left(&r, 60.0f);
static bool save_as_pending = false;
if (GuiButton(aabb2_ray(save_prj_r), "SAVE")) {
if (ctx.filepath == NULL) {
save_as_pending = true;
ctx.fileDialog.fileDialogActive = true;
} else {
texed_save();
}
}
zpl_aabb2 save_as_prj_r = zpl_aabb2_cut_left(&r, 60.0f);
if (GuiButton(aabb2_ray(save_as_prj_r), "SAVE AS")) {
save_as_pending = true;
ctx.fileDialog.fileDialogActive = true;
}
if (ctx.fileDialog.SelectFilePressed && save_as_pending) {
ctx.fileDialog.SelectFilePressed = false;
if (!IsFileExtension(ctx.fileDialog.fileNameText, ".ecotex")) {
zpl_strcpy(ctx.fileDialog.fileNameText, zpl_bprintf("%s.ecotex", ctx.fileDialog.fileNameText));
}
zpl_strcpy(filename, ctx.fileDialog.fileNameText);
ctx.filepath = filename;
save_as_pending = false;
texed_save();
}
zpl_aabb2 prj_name_r = zpl_aabb2_cut_right(&r, 200.0f);
GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_RIGHT);
GuiDrawText(zpl_bprintf("Project: %s", ctx.filepath ? ctx.filepath : "(unnamed)"), GetTextBounds(LABEL, aabb2_ray(prj_name_r)), GuiGetStyle(LABEL, TEXT_ALIGNMENT), Fade(BLACK, guiAlpha));
GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT);
}
void texed_swp_op(int idx, int idx2) {
assert(idx >= 0 && idx < (int)zpl_array_count(ctx.ops));
assert(idx2 >= 0 && idx2 < (int)zpl_array_count(ctx.ops));
td_op tmp = ctx.ops[idx2];
ctx.ops[idx2] = ctx.ops[idx];
ctx.ops[idx] = tmp;
texed_repaint_preview();
}
//~ NOTE(zaklaus): DATA SERIALISATION
#define ECOTEX_VERSION 1
#define UNPACK(kind) cw_unpack_next(&uc); assert(uc.item.type == kind);
void texed_load(void) {
assert(ctx.filepath);
zpl_printf("Loading %s ...\n", ctx.filepath);
zpl_array_clear(ctx.ops);
uint32_t size = 0;
uint8_t *databuf = LoadFileData(zpl_bprintf("art/%s", ctx.filepath), &size);
cw_unpack_context uc;
cw_unpack_context_init(&uc, databuf, (size_t)size, NULL);
UNPACK(CWP_ITEM_POSITIVE_INTEGER);
assert(uc.item.as.u64 == ECOTEX_VERSION);
UNPACK(CWP_ITEM_POSITIVE_INTEGER);
int selected_op = (int)uc.item.as.u64;
UNPACK(CWP_ITEM_ARRAY);
int arrsize = (int)uc.item.as.array.size;
for (int i = 0; i < arrsize; i += 1) {
UNPACK(CWP_ITEM_POSITIVE_INTEGER);
int kind = (int)uc.item.as.u64;
texed_add_op(kind);
td_op *op = zpl_array_end(ctx.ops);
UNPACK(CWP_ITEM_BOOLEAN);
op->is_hidden = uc.item.as.boolean;
UNPACK(CWP_ITEM_ARRAY);
op->num_params = uc.item.as.u64;
op->params = zpl_malloc(sizeof(td_param)*op->num_params);
int parmarrsize = (int)uc.item.as.array.size;
for (int j = 0; j < parmarrsize; j += 1) {
td_param *p = &op->params[j];
UNPACK(CWP_ITEM_POSITIVE_INTEGER);
p->kind = (td_param_kind)uc.item.as.u64;
UNPACK(CWP_ITEM_STR);
zpl_memcopy(p->str, uc.item.as.str.start, uc.item.as.str.length);
// NOTE(zaklaus): fix up other metadata
p->name = default_ops[kind].params[j].name;
}
}
assert(uc.return_code == CWP_RC_OK);
cw_unpack_next(&uc);
assert(uc.return_code == CWP_RC_END_OF_INPUT);
ctx.selected_op = selected_op;
texed_repaint_preview();
UnloadFileData(databuf);
}
void texed_save(void) {
assert(ctx.filepath);
zpl_printf("Saving %s ...\n", ctx.filepath);
static uint8_t databuf[400000] = {0};
cw_pack_context pc;
cw_pack_context_init(&pc, databuf, sizeof(databuf), NULL);
cw_pack_unsigned(&pc, ECOTEX_VERSION);
cw_pack_unsigned(&pc, ctx.selected_op);
cw_pack_array_size(&pc, zpl_array_count(ctx.ops));
for (int i = 0; i < zpl_array_count(ctx.ops); i += 1) {
td_op *op = &ctx.ops[i];
cw_pack_unsigned(&pc, op->kind);
cw_pack_boolean(&pc, (bool)op->is_hidden);
cw_pack_array_size(&pc, op->num_params);
for (int j = 0; j < op->num_params; j += 1) {
td_param *p = &op->params[j];
cw_pack_unsigned(&pc, p->kind);
cw_pack_str(&pc, p->str, zpl_strlen(p->str));
}
}
SaveFileData(zpl_bprintf("art/%s", ctx.filepath), databuf, pc.current - pc.start);
}
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