Textbox is working now

app.c

@@ -8,6 +8,8 @@
 #include "player.h"
 #include "types.h"
 #include "render_bundle.h"
+#include "render_component.h"
+#include "mapper_misc.h"
 #include <stdlib.h>
 #include <stdio.h>
 
@@ -58,6 +60,27 @@ App *app_NewApp() {
 	hit3->hitbox->fixed       = true;
 	entity_Commit(app->entity, hit3);
 
+	Entity *text1 = entity_Create(app->entity, "text_plate_large_1");
+	ADD_COMPONENT(text1, position);
+	text1->position->position = vec2(600, 550);
+	text1->render             = render_NewComponent(app, "info_plate");
+	misc_InstantiateTextbox(app, text1, "So long lives this,\nAnd this gives life to thee.", misc_TextboxUpright(110, 110), -220);
+	entity_Commit(app->entity, text1);
+
+	Entity *text2 = entity_Create(app->entity, "text_plate_1");
+	ADD_COMPONENT(text2, position);
+	text2->position->position = vec2(250, 200);
+	text2->render             = render_NewComponent(app, "info_plate_small_1");
+	misc_InstantiateTextbox(app, text2, "Press Space to jump.\nYou can jump again midair.", misc_TextboxUpright(70, 70), -180);
+	entity_Commit(app->entity, text2);
+
+	Entity *text3 = entity_Create(app->entity, "text_plate_2");
+	ADD_COMPONENT(text3, position);
+	text3->position->position = vec2(750, 200);
+	text3->render             = render_NewComponent(app, "info_plate_small_2");
+	misc_InstantiateTextbox(app, text3, "Press ; to dash.\nYou can only dash one time midair.", misc_TextboxUpright(70, 70), -180);
+	entity_Commit(app->entity, text3);
+
 	return app;
 }
 

app_render.cpp

@@ -5,6 +5,7 @@
 #include "physics.h"
 #include "easyx.h"
 #include "render_bundle.h"
+#include "render_component.h"
 #include "util/tree.h"
 #include "types.h"
 #include "render_util.h"
@@ -63,14 +64,38 @@ void app_Render(App *app) {
 	render_FillCircleW(app, vec2(200, 100), 20);
 
 
-	render_DrawBundleW(app, render_FindBundle("info_plate"), vec2(600, 550));
+	// render_DrawBundleW(app, render_FindBundle("info_plate"), vec2(600, 550));
 	render_DrawBundleW(app, render_FindBundle("info_plate_small_1"), vec2(250, 200));
 	render_DrawBundleW(app, render_FindBundle("info_plate_small_2"), vec2(750, 200));
 
+	// Draw entities
+	for (tree_Node *i = tree_FirstNode(app->entity->entities);
+		 i != NULL;
+		 i = tree_Node_Next(i)) {
+		Entity *e = (Entity *)i->data;
+		if (e->render) {
+			Component_Render *r = e->render;
+
+			// Calculate global position as offset
+			Vec2 pos = {.x = 0.0, .y = 0.0};
+			if (e->position)
+				pos = e->position->position;
+			// Has bundle
+			if (r->bundle)
+				render_DrawBundleW(app, r->bundle, pos);
+			// Has custom rendering
+			if (r->custom)
+				r->custom(app, e, camera_TransformVec2(app->camera, pos), r->custom_data);
+		}
+	}
+
 
 	// Draw particles
 	setfillcolor(RGB(255, 255, 255));
 	setbkcolor(RGB(0, 0, 0));
 	particle_Render(app->particle);
+
+
+	settextcolor(RGB(255, 255, 255));
 }
 }

mapper_misc.c

@@ -2,6 +2,7 @@
 #include "mapper_misc.h"
 #include "app.h"
 #include "entity.h"
+#include "physics.h"
 #include "types.h"
 #include "util/assert.h"
 #include <stdio.h>
@@ -31,6 +32,7 @@ void misc_thinker_HazardRespawn(App *app, Entity *e, Duration deltaTime) {
 	if (app->player->player == NULL) // No player
 		return;
 	Component_Player *p         = app->player->player;
+	Box2              playerbox = physics_HitboxAbsolute(p->super->hitbox);
 
 	Box2 worldbox; // Offset if position component exists
 	Vec2 worldspawn;
@@ -42,7 +44,7 @@ void misc_thinker_HazardRespawn(App *app, Entity *e, Duration deltaTime) {
 		worldspawn = e->misc->respawn->respawn_pos;
 	}
 
-	if (box2_Contains(worldbox, p->super->position->position))
+	if (box2_Intersects(worldbox, playerbox, NULL))
 		p->hazardRespawn = worldspawn;
 }
 
@@ -57,12 +59,13 @@ void misc_thinker_Textbox(App *app, Entity *e, Duration deltaTime) {
 		return;
 	}
 	Component_Player *p         = app->player->player;
+	Box2              playerbox = physics_HitboxAbsolute(p->super->hitbox);
 
 	Box2 worldbox; // Offset if position component exists
 	ASSERT(e->position && "Textboxes must have a position component");
 	worldbox = box2_Offset(t->trigger_box, e->position->position);
 
-	if (box2_Contains(worldbox, p->super->position->position))
+	if (box2_Intersects(worldbox, playerbox, NULL))
 		// Fade in
 		t->progress = fminf(1.0f, t->progress + duration_Seconds(deltaTime) * MISC_TEXTBOX_FADEIN_SPEED);
 	else
@@ -73,8 +76,8 @@ void misc_thinker_Textbox(App *app, Entity *e, Duration deltaTime) {
 
 // Utility functions for creating misc entities
 void misc_InstantiateTextbox(App *app, Entity *e, const char *text, Box2 trigger_box, float offset) {
-	ASSERT(e->misc == NULL && "Instantiate must be called with e.misc not set yet");
-	ASSERT(e->render == NULL && "Instantiate must be called with e.render not set yet");
+	ASSERT(e->misc == NULL && "Instantiate must be called with e.misc not set");
+	ASSERT((e->render == NULL || e->render->custom == NULL) && "Instantiate for Textbox must be called with e.render.custom not set");
 	e->misc          = zero_malloc(sizeof(Component_Misc));
 	e->misc->textbox = zero_malloc(sizeof(misc_Textbox));
 
@@ -82,6 +85,20 @@ void misc_InstantiateTextbox(App *app, Entity *e, const char *text, Box2 trigger
 	e->misc->textbox->trigger_box = trigger_box;
 	e->misc->textbox->offset      = offset;
 
+	if (!e->render)
 		e->render = render_NewComponentFunc(app, &misc_render_Textbox, NULL);
+	else
+		e->render->custom = &misc_render_Textbox;
 	e->thinker = &misc_thinker_Textbox;
 }
+
+void misc_InstantiateHazardRespawn(App *app, Entity *e, Box2 trigger_box, Vec2 respawn_pos) {
+	ASSERT(e->misc == NULL && "Instantiate must be called with e.misc not set");
+	e->misc          = zero_malloc(sizeof(Component_Misc));
+	e->misc->respawn = zero_malloc(sizeof(misc_HazardRespawn));
+
+	e->misc->respawn->respawn_pos = respawn_pos;
+	e->misc->respawn->trigger_box = trigger_box;
+
+	e->thinker = &misc_thinker_HazardRespawn;
+}

mapper_misc.h

@@ -11,7 +11,7 @@ typedef struct _App    App;
 typedef struct _Entity Entity;
 
 
-#define MISC_TEXTBOX_FADEIN_SPEED 5.0 // Fades in/out in 1/5 seconds
+#define MISC_TEXTBOX_FADEIN_SPEED 6.0 // Fades in/out in 1/6 seconds
 
 // A textbox that shows itself when the player is close
 typedef struct {
@@ -55,6 +55,19 @@ void misc_DeleteComponent(Component_Misc *misc);
 // Creates misc + render components & sets the thinker.
 void misc_InstantiateTextbox(App *app, Entity *e, const char *text, Box2 trigger_box, float offset);
 
+// Inserts the components for a hazard respawn area.
+// Creates misc & sets the thinker.
+void misc_InstantiateHazardRespawn(App *app, Entity *e, Box2 trigger_box, Vec2 respawn_pos);
+
+
+static inline Box2 misc_TextboxUpright(double width, double height) {
+	Box2 b = {
+		.lefttop = {
+			.x = -width / 2.0,
+			.y = -height},
+		.size = {.x = width, .y = height}};
+	return b;
+}
 
 #ifdef __cplusplus
 }

mapper_misc_render.cpp

@@ -62,6 +62,7 @@ extern "C" void misc_render_Textbox(App *app, Entity *e, Vec2 entity_screen_pos,
 	rect.top   = (LONG)round(entity_screen_pos.y) + t->offset + 40;
 
 	// Convert & draw
+	// https://docs.easyx.cn/zh-cn/drawtext
 	convert_text(t->text);
 	drawtext((LPCTSTR)vector_Data(tbuf), &rect, DT_CENTER | DT_NOCLIP);
 }

types.h

@@ -55,6 +55,15 @@ typedef struct {
 	Vec2 size;
 } Box2;
 
+static inline Box2 box2(double x, double y, double width, double height) {
+	Box2 b;
+	b.lefttop.x = x;
+	b.lefttop.y = y;
+	b.size.x    = width;
+	b.size.y    = height;
+	return b;
+}
+
 
 // Intersection test.
 bool box2_Intersects(const Box2 x, const Box2 y, Box2 *out_intersection);