Implement chop_player_layer

[nothing.git] / src / game / level / level_editor / player_layer.c

diff --git a/src/game/level/level_editor/player_layer.c b/src/game/level/level_editor/player_layer.c
index 2b5ab3ec6db9de81674dd908443e443d9543ff55..f3c312fe12206034a8ae944c7d85c1e551213320 100644 (file)
--- a/src/game/level/level_editor/player_layer.c
+++ b/src/game/level/level_editor/player_layer.c
@@ -1,8 +1,91 @@
-#include <SDL2/SDL.h>
+#include <stdio.h>
+
+#include <SDL.h>
 
 #include "game/camera.h"
 #include "system/stacktrace.h"
 #include "player_layer.h"
+#include "system/nth_alloc.h"
+#include "system/log.h"
+#include "undo_history.h"
+#include "system/memory.h"
+
+typedef struct {
+    PlayerLayer *layer;
+    Vec2f position;
+    Color color;
+} PlayerUndoContext;
+
+static
+PlayerUndoContext player_layer_create_undo_context(PlayerLayer *player_layer)
+{
+    PlayerUndoContext context = {
+        .layer = player_layer,
+        .position = player_layer->position,
+        .color = player_layer->prev_color
+    };
+
+    return context;
+}
+
+static
+void player_layer_undo(void *context, size_t context_size)
+{
+    trace_assert(context);
+    trace_assert(sizeof(PlayerUndoContext) == context_size);
+
+    PlayerUndoContext *undo_context = context;
+    PlayerLayer *player_layer = undo_context->layer;
+
+    player_layer->position = undo_context->position;
+    player_layer->color_picker = create_color_picker_from_rgba(undo_context->color);
+    player_layer->prev_color = undo_context->color;
+}
+
+PlayerLayer create_player_layer(Vec2f position, Color color)
+{
+    return (PlayerLayer) {
+        .position = position,
+        .color_picker = create_color_picker_from_rgba(color),
+        .prev_color = color
+    };
+}
+
+PlayerLayer create_player_layer_from_line_stream(LineStream *line_stream)
+{
+    trace_assert(line_stream);
+
+    const char *line = line_stream_next(line_stream);
+    trace_assert(line);
+
+    char colorstr[7] = "000000";
+    Vec2f position = vec(0.0f, 0.0f);
+
+    const int bound =
+        sscanf(line, "%f%f%6s", &position.x, &position.y, colorstr);
+
+#define BOUND_EXPECTED 3
+    if (bound != BOUND_EXPECTED) {
+        log_fail("Could not read Player Layer properly. Parsed tokens: %d. Expected: %d\n",
+                 bound, BOUND_EXPECTED);
+    }
+#undef BOUND_EXPECTED
+
+    return create_player_layer(position, hexstr(colorstr));
+}
+
+PlayerLayer chop_player_layer(Memory *memory, String *input)
+{
+    trace_assert(memory);
+    trace_assert(input);
+
+    String line = chop_by_delim(input, '\n');
+    float x = strtof(string_to_cstr(memory, chop_word(&line)), NULL);
+    float y = strtof(string_to_cstr(memory, chop_word(&line)), NULL);
+    Color color = hexs(chop_word(&line));
+
+    return create_player_layer(vec(x, y), color);
+}
 
 LayerPtr player_layer_as_layer(PlayerLayer *player_layer)
 {
@@ -14,20 +97,92 @@ LayerPtr player_layer_as_layer(PlayerLayer *player_layer)
 }
 
 int player_layer_render(const PlayerLayer *player_layer,
-                        Camera *camera)
+                        const Camera *camera,
+                        int active)
 {
     trace_assert(player_layer);
     trace_assert(camera);
 
+    if (camera_fill_rect(
+            camera,
+            rect_from_vecs(
+                player_layer->position,
+                vec(25.0f, 25.0f)),
+            color_scale(
+                color_picker_rgba(&player_layer->color_picker),
+                rgba(1.0f, 1.0f, 1.0f, active ? 1.0f : 0.5f))) < 0) {
+        return -1;
+    }
+
+    if (active && color_picker_render(
+            &player_layer->color_picker,
+            camera)) {
+        return -1;
+    }
+
     return 0;
 }
 
 int player_layer_event(PlayerLayer *player_layer,
                        const SDL_Event *event,
-                       const Camera *camera)
+                       const Camera *camera,
+                       UndoHistory *undo_history)
 {
     trace_assert(player_layer);
     trace_assert(event);
     trace_assert(camera);
+    trace_assert(undo_history);
+
+    int selected = 0;
+    if (color_picker_event(
+            &player_layer->color_picker,
+            event,
+            camera,
+            &selected) < 0) {
+        return -1;
+    }
+
+    if (selected && !color_picker_drag(&player_layer->color_picker)) {
+        PlayerUndoContext context =
+            player_layer_create_undo_context(player_layer);
+        undo_history_push(
+            undo_history,
+            player_layer_undo,
+            &context,
+            sizeof(context));
+        player_layer->prev_color = color_picker_rgba(&player_layer->color_picker);
+    }
+
+    if (!selected &&
+        event->type == SDL_MOUSEBUTTONDOWN &&
+        event->button.button == SDL_BUTTON_LEFT) {
+
+        PlayerUndoContext context =
+            player_layer_create_undo_context(player_layer);
+
+        undo_history_push(
+            undo_history,
+            player_layer_undo,
+            &context, sizeof(context));
+
+        player_layer->position =
+            camera_map_screen(camera,
+                              event->button.x,
+                              event->button.y);
+    }
+
+    return 0;
+}
+
+int player_layer_dump_stream(const PlayerLayer *player_layer,
+                             FILE *filedump)
+{
+    trace_assert(player_layer);
+    trace_assert(filedump);
+
+    fprintf(filedump, "%f %f ", player_layer->position.x, player_layer->position.y);
+    color_hex_to_stream(color_picker_rgba(&player_layer->color_picker), filedump);
+    fprintf(filedump, "\n");
+
     return 0;
 }