wip sw renderer...bsp is borked, also lots of other things

src/gui/pxl8_gui.c

@@ -0,0 +1,140 @@
+#include "pxl8_gui.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "pxl8_gfx.h"
+
+pxl8_gui_state* pxl8_gui_state_create(void) {
+    pxl8_gui_state* state = (pxl8_gui_state*)malloc(sizeof(pxl8_gui_state));
+    if (!state) return NULL;
+
+    memset(state, 0, sizeof(pxl8_gui_state));
+    return state;
+}
+
+void pxl8_gui_state_destroy(pxl8_gui_state* state) {
+    if (!state) return;
+    free(state);
+}
+
+void pxl8_gui_begin_frame(pxl8_gui_state* state, pxl8_gfx* gfx) {
+    if (!state) return;
+    state->hot_id = 0;
+    if (gfx) pxl8_gfx_push_target(gfx);
+}
+
+void pxl8_gui_end_frame(pxl8_gui_state* state, pxl8_gfx* gfx) {
+    if (!state) return;
+
+    if (!state->cursor_down) {
+        state->active_id = 0;
+    }
+    state->cursor_clicked = false;
+    if (gfx) pxl8_gfx_pop_target(gfx);
+}
+
+void pxl8_gui_cursor_move(pxl8_gui_state* state, i32 x, i32 y) {
+    if (!state) return;
+    state->cursor_x = x;
+    state->cursor_y = y;
+}
+
+void pxl8_gui_cursor_down(pxl8_gui_state* state) {
+    if (!state) return;
+    state->cursor_down = true;
+}
+
+void pxl8_gui_cursor_up(pxl8_gui_state* state) {
+    if (!state) return;
+    state->cursor_down = false;
+    state->cursor_clicked = true;
+}
+
+static bool is_cursor_over(const pxl8_gui_state* state, i32 x, i32 y, i32 w, i32 h) {
+    return state->cursor_x >= x && state->cursor_x < (x + w) &&
+           state->cursor_y >= y && state->cursor_y < (y + h);
+}
+
+bool pxl8_gui_button(pxl8_gui_state* state, pxl8_gfx* gfx, u32 id, i32 x, i32 y, i32 w, i32 h, const char* label) {
+    if (!state || !gfx || !label) return false;
+
+    bool cursor_over = is_cursor_over(state, x, y, w, h);
+    bool is_hot = (state->hot_id == id);
+    bool is_active = (state->active_id == id);
+
+    if (cursor_over) {
+        state->hot_id = id;
+    }
+
+    if (cursor_over && state->cursor_down && state->active_id == 0) {
+        state->active_id = id;
+    }
+
+    bool clicked = is_active && state->cursor_clicked && cursor_over;
+    if (clicked) {
+        state->active_id = 0;
+    }
+
+    u8 bg_color;
+    u8 border_color;
+    i32 offset_x = 0;
+    i32 offset_y = 0;
+
+    if (is_active) {
+        bg_color = pxl8_gfx_ui_color(gfx, PXL8_UI_BG3);
+        border_color = pxl8_gfx_ui_color(gfx, PXL8_UI_BG2);
+        offset_x = 1;
+        offset_y = 1;
+    } else if (is_hot || cursor_over) {
+        bg_color = pxl8_gfx_ui_color(gfx, PXL8_UI_BG3);
+        border_color = pxl8_gfx_ui_color(gfx, PXL8_UI_FG0);
+    } else {
+        bg_color = pxl8_gfx_ui_color(gfx, PXL8_UI_BG2);
+        border_color = pxl8_gfx_ui_color(gfx, PXL8_UI_BG3);
+    }
+
+    pxl8_2d_rect_fill(gfx, x, y, w, h, bg_color);
+    pxl8_2d_rect(gfx, x, y, w, h, border_color);
+
+    i32 text_len = (i32)strlen(label);
+    i32 text_x = x + (w / 2) - ((text_len * 8) / 2) + offset_x;
+    i32 text_y = y + (h / 2) - 5 + offset_y;
+    pxl8_2d_text(gfx, label, text_x, text_y, pxl8_gfx_ui_color(gfx, PXL8_UI_FG1));
+
+    return clicked;
+}
+
+void pxl8_gui_window(pxl8_gfx* gfx, i32 x, i32 y, i32 w, i32 h, const char* title) {
+    if (!gfx || !title) return;
+
+    u8 title_bg = pxl8_gfx_ui_color(gfx, PXL8_UI_BG1);
+    u8 body_bg = pxl8_gfx_ui_color(gfx, PXL8_UI_BG2);
+    u8 border = pxl8_gfx_ui_color(gfx, PXL8_UI_BG3);
+    u8 title_fg = pxl8_gfx_ui_color(gfx, PXL8_UI_FG0);
+
+    pxl8_2d_rect_fill(gfx, x, y, w, 28, title_bg);
+    pxl8_2d_rect_fill(gfx, x, y + 28, w, h - 28, body_bg);
+    pxl8_2d_rect(gfx, x, y, w, h, border);
+    pxl8_2d_rect_fill(gfx, x, y + 28, w, 1, border);
+
+    i32 title_x = x + 10;
+    i32 title_y = y + (28 / 2) - 5;
+    pxl8_2d_text(gfx, title, title_x, title_y, title_fg);
+}
+
+void pxl8_gui_label(pxl8_gfx* gfx, i32 x, i32 y, const char* text, u8 color) {
+    if (!gfx || !text) return;
+    pxl8_2d_text(gfx, text, x, y, color);
+}
+
+bool pxl8_gui_is_hovering(const pxl8_gui_state* state) {
+    if (!state) return false;
+    return state->hot_id != 0;
+}
+
+void pxl8_gui_get_cursor_pos(const pxl8_gui_state* state, i32* x, i32* y) {
+    if (!state) return;
+    if (x) *x = state->cursor_x;
+    if (y) *y = state->cursor_y;
+}

src/gui/pxl8_gui.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "pxl8_gfx.h"
+#include "pxl8_types.h"
+
+typedef struct {
+    i32 cursor_x;
+    i32 cursor_y;
+    bool cursor_down;
+    bool cursor_clicked;
+    u32 hot_id;
+    u32 active_id;
+} pxl8_gui_state;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+pxl8_gui_state* pxl8_gui_state_create(void);
+void pxl8_gui_state_destroy(pxl8_gui_state* state);
+
+void pxl8_gui_get_cursor_pos(const pxl8_gui_state* state, i32* x, i32* y);
+bool pxl8_gui_is_hovering(const pxl8_gui_state* state);
+
+void pxl8_gui_begin_frame(pxl8_gui_state* state, pxl8_gfx* gfx);
+void pxl8_gui_end_frame(pxl8_gui_state* state, pxl8_gfx* gfx);
+
+void pxl8_gui_cursor_down(pxl8_gui_state* state);
+void pxl8_gui_cursor_move(pxl8_gui_state* state, i32 x, i32 y);
+void pxl8_gui_cursor_up(pxl8_gui_state* state);
+
+bool pxl8_gui_button(pxl8_gui_state* state, pxl8_gfx* gfx, u32 id, i32 x, i32 y, i32 w, i32 h, const char* label);
+void pxl8_gui_label(pxl8_gfx* gfx, i32 x, i32 y, const char* text, u8 color);
+void pxl8_gui_window(pxl8_gfx* gfx, i32 x, i32 y, i32 w, i32 h, const char* title);
+
+#ifdef __cplusplus
+}
+#endif

src/gui/pxl8_gui_palette.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include "pxl8_types.h"
+
+#define PXL8_UI_PALETTE_SIZE 16
+
+#define PXL8_UI_BG0        0
+#define PXL8_UI_BG1        1
+#define PXL8_UI_BG2        2
+#define PXL8_UI_BG3        3
+#define PXL8_UI_FG0        4
+#define PXL8_UI_FG1        5
+#define PXL8_UI_FG2        6
+#define PXL8_UI_FG3        7
+#define PXL8_UI_RED        8
+#define PXL8_UI_GREEN      9
+#define PXL8_UI_YELLOW     10
+#define PXL8_UI_BLUE       11
+#define PXL8_UI_PURPLE     12
+#define PXL8_UI_AQUA       13
+#define PXL8_UI_ORANGE     14
+#define PXL8_UI_GRAY       15
+
+static const u32 pxl8_ui_palette[PXL8_UI_PALETTE_SIZE] = {
+    0xFF282828,
+    0xFF3c3836,
+    0xFF504945,
+    0xFF665c54,
+    0xFFc7f1fb,
+    0xFFb2dbeb,
+    0xFFa1c4d5,
+    0xFF93aebd,
+    0xFF3449fb,
+    0xFF26bbb8,
+    0xFF2fbdfa,
+    0xFF98a583,
+    0xFF9b86d3,
+    0xFF7cc08e,
+    0xFF1980fe,
+    0xFF928374,
+};