WIP work on LD52 game

At this point, the produce is drawn, the cut line is animated, the produce can
blink, the ideal cut area is draw as a slightly transparent white rect, the
score counter is drawn.
This commit is contained in:
Stephen Seo 2023-01-07 14:36:14 +09:00
parent c1725b0a13
commit f7bb1af7fa
10 changed files with 365 additions and 8 deletions

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@ -18,6 +18,8 @@ set(LD52Native_SOURCES
src/main.cc
src/game.cc
src/ems.cc
src/helpers.cc
src/constants.cc
)
add_executable(LD52Native ${LD52Native_SOURCES})

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resources/produceStuff.png Normal file

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6
src/constants.cc Normal file
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@ -0,0 +1,6 @@
#include "constants.h"
// standard library includes
#include <cmath>
const float PI_F = std::acos(-1.0F);

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@ -1,7 +1,51 @@
#ifndef LD52_HARVEST_FOOD_CUTS_CONSTANTS_H_
#define LD52_HARVEST_FOOD_CUTS_CONSTANTS_H_
extern const float PI_F;
constexpr int DEFAULT_SCREEN_WIDTH = 500;
constexpr int DEFAULT_SCREEN_HEIGHT = 800;
constexpr int FOOD_COUNT = 5;
enum class FoodType {
FT_CORN = 0,
FT_GRAPES,
FT_APPLE,
FT_BROCCOLI,
FT_BANANA,
};
constexpr int CORN_COORDS[4] = {0, 0, 281, 676};
constexpr int GRAPES_COORDS[4] = {281, 0, 232, 434};
constexpr int APPLE_COORDS[4] = {513, 0, 250, 251};
constexpr int BROCCOLI_COORDS[4] = {767, 2, 268, 153};
constexpr int BANANA_COORDS[4] = {525, 254, 189, 355};
constexpr float CORN_EYE_OFFSET[2] = {-10, 0};
constexpr float GRAPES_EYE_OFFSET[2] = {0, 0};
constexpr float APPLE_EYE_OFFSET[2] = {0, 0};
constexpr float BROCCOLI_EYE_OFFSET[2] = {0, 0};
constexpr float BANANA_EYE_OFFSET[2] = {40, 0};
constexpr float EYE_WIDTH_RATIO = 0.3F;
constexpr float AREA_REDUCTION_SCALE = 0.99F;
constexpr float MIN_AREA = 15.0F;
constexpr float MAX_FOOD_WH = 500.0F;
constexpr float EYE_RADIUS = 14.0F;
constexpr float BLINKING_EYE_SIZE = 4.0F;
constexpr float MOUTH_RADIUS = 20.0F;
constexpr float MIN_BLINK_TIME = 1.0F;
constexpr float MAX_BLINK_TIME = 20.0F;
constexpr float BLINK_DURATION = 0.7F;
constexpr float CUT_TIMER_RATE = 1.0F;
constexpr float CUT_TIMER_RATE_INC_AMT = 0.03F;
#endif

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@ -1,20 +1,187 @@
#include "game.h"
// third party includes
#include <random>
#include <raylib.h>
Game::Game() {}
// local includes
#include "constants.h"
#include "helpers.h"
Game::Game()
: re(std::random_device{}()), dist(0, FOOD_COUNT - 1), score(0),
areaSizeRatio(1.0F), currentFood(dist(re)), blinkTimer(10.0F),
cutTimer(0.0F), cutTimerRateInc(1.0F) {
flags.set(0);
spriteSheet = LoadTexture("resources/produceStuff.png");
}
void Game::do_update() {
update_impl();
draw_impl();
}
void Game::update_impl() {}
void Game::update_impl() {
const float dt = GetFrameTime();
if (flags.test(0)) {
flags.set(0);
scoreString.clear();
if (score == 0) {
scoreString.push_back('0');
} else {
std::string temp;
for (unsigned long long i = score; i > 0; i /= 10) {
temp.push_back((i % 10) + '0');
}
for (auto c : temp) {
scoreString.push_back(c);
}
}
}
blinkTimer -= dt;
if (blinkTimer <= 0.0F) {
flags.flip(1);
if (flags.test(1)) {
blinkTimer = BLINK_DURATION;
} else {
blinkTimer = std::uniform_real_distribution<float>{MIN_BLINK_TIME,
MAX_BLINK_TIME}(re);
}
}
cutTimer += dt * CUT_TIMER_RATE * cutTimerRateInc;
if (cutTimer > 1.0F) {
cutTimer -= 1.0F;
}
}
void Game::draw_impl() {
BeginDrawing();
ClearBackground(BLACK);
DrawText("Testing...", 100, 100, 30, RAYWHITE);
ClearBackground(RAYWHITE);
float ratio;
float width;
float height;
float offsetX;
float offsetY;
switch (currentFood) {
case (unsigned int)FoodType::FT_APPLE:
ratio = (float)APPLE_COORDS[2] / (float)APPLE_COORDS[3];
break;
case (unsigned int)FoodType::FT_BANANA:
ratio = (float)BANANA_COORDS[2] / (float)BANANA_COORDS[3];
break;
case (unsigned int)FoodType::FT_BROCCOLI:
ratio = (float)BROCCOLI_COORDS[2] / (float)BROCCOLI_COORDS[3];
break;
case (unsigned int)FoodType::FT_CORN:
ratio = (float)CORN_COORDS[2] / (float)CORN_COORDS[3];
break;
case (unsigned int)FoodType::FT_GRAPES:
ratio = (float)GRAPES_COORDS[2] / (float)GRAPES_COORDS[3];
break;
default:
ratio = 1.0F;
break;
}
if (ratio < 1.0F) {
height = MAX_FOOD_WH;
width = height * ratio;
} else {
width = MAX_FOOD_WH;
height = width / ratio;
}
if (width > GetScreenWidth() && height <= GetScreenHeight()) {
if (ratio < 1.0F) {
height = GetScreenWidth() / ratio;
width = height * ratio;
} else {
width = GetScreenWidth();
height = width / ratio;
}
} else if (width <= GetScreenWidth() && height > GetScreenHeight()) {
if (ratio < 1.0F) {
height = GetScreenHeight();
width = height * ratio;
} else {
width = GetScreenHeight() * ratio;
height = width / ratio;
}
}
offsetX = (GetScreenWidth() - width) / 2.0F;
offsetY = (GetScreenHeight() - height) / 2.0F;
switch (currentFood) {
case (unsigned int)FoodType::FT_APPLE:
DrawTexturePro(
spriteSheet,
{APPLE_COORDS[0], APPLE_COORDS[1], APPLE_COORDS[2], APPLE_COORDS[3]},
{offsetX, offsetY, width, height}, {0.0F, 0.0F}, 0.0F, WHITE);
break;
case (unsigned int)FoodType::FT_BANANA:
DrawTexturePro(spriteSheet,
{BANANA_COORDS[0], BANANA_COORDS[1], BANANA_COORDS[2],
BANANA_COORDS[3]},
{offsetX, offsetY, width, height}, {0.0F, 0.0F}, 0.0F,
WHITE);
break;
case (unsigned int)FoodType::FT_BROCCOLI:
DrawTexturePro(spriteSheet,
{BROCCOLI_COORDS[0], BROCCOLI_COORDS[1], BROCCOLI_COORDS[2],
BROCCOLI_COORDS[3]},
{offsetX, offsetY, width, height}, {0.0F, 0.0F}, 0.0F,
WHITE);
break;
case (unsigned int)FoodType::FT_CORN:
DrawTexturePro(
spriteSheet,
{CORN_COORDS[0], CORN_COORDS[1], CORN_COORDS[2], CORN_COORDS[3]},
{offsetX, offsetY, width, height}, {0.0F, 0.0F}, 0.0F, WHITE);
break;
case (unsigned int)FoodType::FT_GRAPES:
DrawTexturePro(spriteSheet,
{GRAPES_COORDS[0], GRAPES_COORDS[1], GRAPES_COORDS[2],
GRAPES_COORDS[3]},
{offsetX, offsetY, width, height}, {0.0F, 0.0F}, 0.0F,
WHITE);
break;
default:
break;
}
DrawRectangle(0, offsetY, GetScreenWidth(), height / 3.0F,
{255, 255, 255, 127});
float cutPos = cutTimer * height;
DrawLine(0, cutPos + offsetY - height / 3.0F, GetScreenWidth(),
cutPos + offsetY - height / 3.0F, BLACK);
Helpers::draw_eyes_full(offsetX + width / 2.0F, offsetY + height / 2.0F,
width, EYE_RADIUS, (FoodType)currentFood,
flags.test(1));
if (flags.test(2)) {
Helpers::draw_happy_mouth(offsetX + width / 2.0F, offsetY + height / 2.0F,
MOUTH_RADIUS);
}
DrawText(scoreString.c_str(), 2, 2, 32, BLACK);
EndDrawing();
}
void Game::reset() {
flags.set(0);
score = 0;
areaSizeRatio = 1.0F;
currentFood = dist(re);
blinkTimer = 10.0F;
cutTimer = 0.0F;
}

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@ -1,6 +1,13 @@
#ifndef LD52_HARVEST_FOOD_CUTS_GAME_H_
#define LD52_HARVEST_FOOD_CUTS_GAME_H_
// standard library includes
#include <bitset>
#include <random>
// third party includes
#include <raylib.h>
class Game {
public:
Game();
@ -8,10 +15,28 @@ public:
void do_update();
private:
void update_impl();
void draw_impl();
void reset();
std::default_random_engine re;
std::uniform_int_distribution<unsigned int> dist;
std::string scoreString;
Texture2D spriteSheet;
unsigned long long score;
/*
* 0 - score dirty
* 1 - is blinking
* 2 - happy
*/
std::bitset<32> flags;
float areaSizeRatio;
float currentArea;
unsigned int currentFood;
float blinkTimer;
float cutTimer;
float cutTimerRateInc;
};
#endif

86
src/helpers.cc Normal file
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@ -0,0 +1,86 @@
#include "helpers.h"
// standard library includes
#include <cmath>
// third party includes
#include <raylib.h>
// local includes
#include "constants.h"
void Helpers::draw_eye(float x, float y, float radius) {
DrawCircle(x + 0.5F, y + 0.5F, radius, BLACK);
DrawCircleSector({x, y}, radius / 1.5F, 180.0F, 270.0F, 32, WHITE);
}
void Helpers::draw_blinking_eye(float x, float y, float radius) {
DrawLineEx({x - radius, y}, {x + radius, y}, BLINKING_EYE_SIZE, BLACK);
}
void Helpers::draw_open_mouth(float x, float y, float radius) {
DrawCircle(x, y, radius, BLACK);
}
void Helpers::draw_happy_mouth(float x, float y, float radius) {
DrawCircleSector({x, y}, radius, -90.0F, 90.0F, 32, BLACK);
}
void Helpers::draw_eyes_full(float x, float y, float width, float radius,
FoodType foodType, bool isBlinking) {
float offsets[2];
switch (foodType) {
case FoodType::FT_CORN:
offsets[0] = CORN_EYE_OFFSET[0];
offsets[1] = CORN_EYE_OFFSET[1];
break;
case FoodType::FT_GRAPES:
offsets[0] = GRAPES_EYE_OFFSET[0];
offsets[1] = GRAPES_EYE_OFFSET[1];
break;
case FoodType::FT_APPLE:
offsets[0] = APPLE_EYE_OFFSET[0];
offsets[1] = APPLE_EYE_OFFSET[1];
break;
case FoodType::FT_BROCCOLI:
offsets[0] = BROCCOLI_EYE_OFFSET[0];
offsets[1] = BROCCOLI_EYE_OFFSET[1];
break;
case FoodType::FT_BANANA:
offsets[0] = BANANA_EYE_OFFSET[0];
offsets[1] = BANANA_EYE_OFFSET[1];
break;
default:
offsets[0] = 0.0F;
offsets[1] = 0.0F;
break;
}
const float eye_width = width * EYE_WIDTH_RATIO;
if (isBlinking) {
draw_blinking_eye(x - eye_width / 2.0F + offsets[0], y + offsets[1],
radius);
draw_blinking_eye(x + eye_width / 2.0F + offsets[0], y + offsets[1],
radius);
} else {
draw_eye(x - eye_width / 2.0F + offsets[0], y + offsets[1], radius);
draw_eye(x + eye_width / 2.0F + offsets[0], y + offsets[1], radius);
}
}
float Helpers::get_cut_pos(float timer, FoodType foodType) {
switch (foodType) {
case FoodType::FT_CORN:
return std::cos(timer) * (float)CORN_COORDS[3];
case FoodType::FT_GRAPES:
return std::cos(timer) * (float)GRAPES_COORDS[3];
case FoodType::FT_APPLE:
return std::cos(timer) * (float)APPLE_COORDS[3];
case FoodType::FT_BROCCOLI:
return std::cos(timer) * (float)BROCCOLI_COORDS[3];
case FoodType::FT_BANANA:
return std::cos(timer) * (float)BANANA_COORDS[3];
}
return 0.0F;
}

20
src/helpers.h Normal file
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@ -0,0 +1,20 @@
#ifndef LD52_HARVEST_FOOD_CUTS_H_
#define LD52_HARVEST_FOOD_CUTS_H_
#include "constants.h"
namespace Helpers {
extern void draw_eye(float x, float y, float radius);
extern void draw_blinking_eye(float x, float y, float radius);
extern void draw_open_mouth(float x, float y, float radius);
extern void draw_happy_mouth(float x, float y, float radius);
extern void draw_eyes_full(float x, float y, float width, float radius,
FoodType foodType, bool isBlinking);
extern float get_cut_pos(float timer, FoodType foodType);
} // namespace Helpers
#endif

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@ -31,7 +31,8 @@ void game_update(void *game_ptr) { ((Game *)game_ptr)->do_update(); }
int main() {
#ifdef __EMSCRIPTEN__
InitWindow(DEFAULT_SCREEN_WIDTH, DEFAULT_SCREEN_HEIGHT, "LD52_Harvest_Food_Cuts");
InitWindow(DEFAULT_SCREEN_WIDTH, DEFAULT_SCREEN_HEIGHT,
"LD52_Harvest_Food_Cuts");
#else
InitWindow(DEFAULT_SCREEN_WIDTH, DEFAULT_SCREEN_HEIGHT,
"LD52_Harvest_Food_Cuts_Native");

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@ -7,10 +7,15 @@ endif
SOURCES = \
../src/main.cc \
../src/ems.cc \
../src/game.cc
../src/game.cc \
../src/constants.cc \
../src/helpers.cc
HEADERS = \
../src/constants.h
../src/constants.h \
../src/game.h \
../src/ems.h \
../src/helpers.h
CXX = source ${HOME}/git/emsdk/emsdk_env.sh && em++
@ -22,6 +27,7 @@ ld52_harvest_cut.html: ${SOURCES} ${HEADERS}
--shell-file custom_shell.html \
-sEXPORTED_FUNCTIONS=_main \
-sEXPORTED_RUNTIME_METHODS=ccall \
--preload-file ../resources \
${OTHER_FLAGS} \
${SOURCES}