97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
#include "./combat_ring.h"
|
|
|
|
#include <assert.h>
|
|
#include <math.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <GL/glew.h>
|
|
|
|
#include "util/gleasy/program.h"
|
|
#include "util/math/algorithm.h"
|
|
#include "util/math/constant.h"
|
|
#include "util/math/vector.h"
|
|
|
|
#include "./instanced.h"
|
|
#include "./uniblock.h"
|
|
|
|
/* resources */
|
|
#include "core/loshader/anysrc/header.shader.h"
|
|
#include "core/loshader/anysrc/combat_ring.vshader.h"
|
|
#include "core/loshader/anysrc/combat_ring.fshader.h"
|
|
|
|
#define VSHADER_IN_RANGE_ 0
|
|
#define VSHADER_IN_PERIOD_ 1
|
|
#define VSHADER_IN_COLOR_ 2
|
|
|
|
#define PRIMITIVE_COUNT_ 6
|
|
|
|
#pragma pack(push, 1)
|
|
typedef struct {
|
|
float range;
|
|
vec2_t period; /* x~y */
|
|
vec4_t color;
|
|
} loshader_combat_ring_drawer_internal_instance_t;
|
|
#pragma pack(pop)
|
|
|
|
void loshader_combat_ring_drawer_initialize(
|
|
loshader_combat_ring_drawer_t* drawer,
|
|
const loshader_uniblock_t* uniblock) {
|
|
assert(drawer != NULL);
|
|
assert(uniblock != NULL);
|
|
|
|
const gleasy_program_t prog = gleasy_program_new(
|
|
loshader_header_shader_, sizeof(loshader_header_shader_),
|
|
loshader_combat_ring_vshader_, sizeof(loshader_combat_ring_vshader_),
|
|
loshader_combat_ring_fshader_, sizeof(loshader_combat_ring_fshader_));
|
|
|
|
loshader_instanced_drawer_initialize(
|
|
&drawer->super,
|
|
prog,
|
|
uniblock,
|
|
sizeof(loshader_combat_ring_drawer_internal_instance_t));
|
|
|
|
glBindVertexArray(drawer->super.vao);
|
|
glBindBuffer(GL_ARRAY_BUFFER, drawer->super.instances);
|
|
|
|
# define enable_(index, var, dim, type) do { \
|
|
glEnableVertexAttribArray(index); \
|
|
glVertexAttribPointer( \
|
|
index, dim, type, GL_FALSE, \
|
|
sizeof(loshader_combat_ring_drawer_internal_instance_t), \
|
|
NULL + \
|
|
offsetof(loshader_combat_ring_drawer_internal_instance_t, var)); \
|
|
glVertexAttribDivisor(index, 1); \
|
|
} while (0)
|
|
|
|
enable_(VSHADER_IN_RANGE_, range, 1, GL_FLOAT);
|
|
enable_(VSHADER_IN_PERIOD_, period, 2, GL_FLOAT);
|
|
enable_(VSHADER_IN_COLOR_, color, 4, GL_FLOAT);
|
|
|
|
# undef enable_
|
|
}
|
|
|
|
void loshader_combat_ring_drawer_add_instance(
|
|
loshader_combat_ring_drawer_t* drawer,
|
|
const loshader_combat_ring_drawer_instance_t* instance) {
|
|
assert(drawer != NULL);
|
|
assert(instance != NULL);
|
|
|
|
const loshader_combat_ring_drawer_internal_instance_t insta = {
|
|
.range = instance->range,
|
|
.period = vec2(instance->start, instance->end),
|
|
.color = instance->color,
|
|
};
|
|
if (!loshader_instanced_drawer_add_instance(&drawer->super, &insta)) {
|
|
fprintf(stderr, "combat ring drawer overflow\n");
|
|
abort();
|
|
}
|
|
}
|
|
|
|
void loshader_combat_ring_drawer_draw(
|
|
const loshader_combat_ring_drawer_t* drawer) {
|
|
assert(drawer != NULL);
|
|
|
|
loshader_instanced_drawer_draw(&drawer->super, PRIMITIVE_COUNT_);
|
|
}
|